// // System.Data.SqlClient.SqlConnection.cs // // Authors: // Rodrigo Moya (rodrigo@ximian.com) // Daniel Morgan (danmorg@sc.rr.com) // Tim Coleman (tim@timcoleman.com) // Phillip Jerkins (Phillip.Jerkins@morgankeegan.com) // Diego Caravana (diego@toth.it) // // Copyright (C) Ximian, Inc 2002 // Copyright (C) Daniel Morgan 2002, 2003 // Copyright (C) Tim Coleman, 2002, 2003 // Copyright (C) Phillip Jerkins, 2003 // // // Copyright (C) 2004 Novell, Inc (http://www.novell.com) // // Permission is hereby granted, free of charge, to any person obtaining // a copy of this software and associated documentation files (the // "Software"), to deal in the Software without restriction, including // without limitation the rights to use, copy, modify, merge, publish, // distribute, sublicense, and/or sell copies of the Software, and to // permit persons to whom the Software is furnished to do so, subject to // the following conditions: // // The above copyright notice and this permission notice shall be // included in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // using Mono.Data.Tds; using Mono.Data.Tds.Protocol; using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.Data; using System.Data.Common; using System.EnterpriseServices; using System.Globalization; using System.Net; using System.Net.Sockets; using System.Text; using System.Xml; #if NET_2_0 using System.Collections.Generic; #endif namespace System.Data.SqlClient { [DefaultEvent ("InfoMessage")] #if NET_2_0 public sealed class SqlConnection : DbConnection, IDbConnection, ICloneable #else public sealed class SqlConnection : Component, IDbConnection, ICloneable #endif // NET_2_0 { #region Fields bool disposed; // The set of SQL connection pools static TdsConnectionPoolManager sqlConnectionPools = new TdsConnectionPoolManager (TdsVersion.tds70); #if NET_2_0 const int DEFAULT_PACKETSIZE = 8000; #else const int DEFAULT_PACKETSIZE = 8192; #endif const int DEFAULT_CONNECTIONTIMEOUT = 15; const int DEFAULT_MAXPOOLSIZE = 100; const int DEFAULT_MINPOOLSIZE = 0; const int DEFAULT_PORT = 1433; // The current connection pool TdsConnectionPool pool; // The connection string that identifies this connection string connectionString; // The transaction object for the current transaction SqlTransaction transaction; // Connection parameters TdsConnectionParameters parms; bool connectionReset; bool pooling; string dataSource; int connectionTimeout; int minPoolSize; int maxPoolSize; int packetSize; int port; bool fireInfoMessageEventOnUserErrors; bool statisticsEnabled; bool userInstance; // The current state ConnectionState state = ConnectionState.Closed; SqlDataReader dataReader; XmlReader xmlReader; // The TDS object Tds tds; #endregion // Fields #region Constructors public SqlConnection () : this (null) { } public SqlConnection (string connectionString) { ConnectionString = connectionString; } #endregion // Constructors #region Properties #if NET_1_0 || ONLY_1_1 [DataSysDescription ("Information used to connect to a DataSource, such as 'Data Source=x;Initial Catalog=x;Integrated Security=SSPI'.")] #endif [DefaultValue ("")] [EditorAttribute ("Microsoft.VSDesigner.Data.SQL.Design.SqlConnectionStringEditor, "+ Consts.AssemblyMicrosoft_VSDesigner, "System.Drawing.Design.UITypeEditor, "+ Consts.AssemblySystem_Drawing )] [RecommendedAsConfigurable (true)] [RefreshProperties (RefreshProperties.All)] public #if NET_2_0 override #endif // NET_2_0 string ConnectionString { get { if (connectionString == null) return string.Empty; return connectionString; } [MonoTODO("persist security info, encrypt, enlist keyword not implemented")] set { if (state == ConnectionState.Open) throw new InvalidOperationException ("Not Allowed to change ConnectionString property while Connection state is OPEN"); SetConnectionString (value); } } #if !NET_2_0 [DataSysDescription ("Current connection timeout value, 'Connect Timeout=X' in the ConnectionString.")] #endif [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)] public #if NET_2_0 override #endif // NET_2_0 int ConnectionTimeout { get { return connectionTimeout; } } #if !NET_2_0 [DataSysDescription ("Current SQL Server database, 'Initial Catalog=X' in the connection string.")] #endif [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)] public #if NET_2_0 override #endif // NET_2_0 string Database { get { if (State == ConnectionState.Open) return tds.Database; return parms.Database ; } } internal SqlDataReader DataReader { get { return dataReader; } set { dataReader = value; } } #if !NET_2_0 [DataSysDescription ("Current SqlServer that the connection is opened to, 'Data Source=X' in the connection string. ")] #else [Browsable(true)] #endif [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)] public #if NET_2_0 override #endif // NET_2_0 string DataSource { get { return dataSource; } } #if !NET_2_0 [DataSysDescription ("Network packet size, 'Packet Size=x' in the connection string.")] #endif [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)] public int PacketSize { get { if (State == ConnectionState.Open) return ((Tds) tds).PacketSize; return packetSize; } } [Browsable (false)] #if !NET_2_0 [DataSysDescription ("Version of the SQL Server accessed by the SqlConnection.")] #endif [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)] public #if NET_2_0 override #endif // NET_2_0 string ServerVersion { get { if (state == ConnectionState.Closed) throw ExceptionHelper.ConnectionClosed (); else return tds.ServerVersion; } } [Browsable (false)] #if !NET_2_0 [DataSysDescription ("The ConnectionState indicating whether the connection is open or closed.")] #endif [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)] public #if NET_2_0 override #endif // NET_2_0 ConnectionState State { get { return state; } } internal Tds Tds { get { return tds; } } internal SqlTransaction Transaction { get { return transaction; } set { transaction = value; } } #if !NET_2_0 [DataSysDescription ("Workstation Id, 'Workstation ID=x' in the connection string.")] #endif [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)] public string WorkstationId { get { return parms.Hostname; } } internal XmlReader XmlReader { get { return xmlReader; } set { xmlReader = value; } } #if NET_2_0 public bool FireInfoMessageEventOnUserErrors { get { return fireInfoMessageEventOnUserErrors; } set { fireInfoMessageEventOnUserErrors = value; } } [DefaultValue (false)] public bool StatisticsEnabled { get { return statisticsEnabled; } set { statisticsEnabled = value; } } #endif #endregion // Properties #region Events #if !NET_2_0 [DataSysDescription ("Event triggered when messages arrive from the DataSource.")] #endif public event SqlInfoMessageEventHandler InfoMessage; #if !NET_2_0 [DataSysDescription ("Event triggered when the connection changes state.")] public new event StateChangeEventHandler StateChange; #endif #endregion // Events #region Delegates private void ErrorHandler (object sender, TdsInternalErrorMessageEventArgs e) { throw new SqlException (e.Class, e.LineNumber, e.Message, e.Number, e.Procedure, e.Server, "Mono SqlClient Data Provider", e.State); } private void MessageHandler (object sender, TdsInternalInfoMessageEventArgs e) { OnSqlInfoMessage (CreateSqlInfoMessageEvent (e.Errors)); } #endregion // Delegates #region Methods public new SqlTransaction BeginTransaction () { return BeginTransaction (IsolationLevel.ReadCommitted, String.Empty); } public new SqlTransaction BeginTransaction (IsolationLevel iso) { return BeginTransaction (iso, String.Empty); } public SqlTransaction BeginTransaction (string transactionName) { return BeginTransaction (IsolationLevel.ReadCommitted, transactionName); } public SqlTransaction BeginTransaction (IsolationLevel iso, string transactionName) { if (state == ConnectionState.Closed) throw ExceptionHelper.ConnectionClosed (); if (transaction != null) throw new InvalidOperationException ("SqlConnection does not support parallel transactions."); string isolevel = String.Empty; switch (iso) { case IsolationLevel.ReadUncommitted: isolevel = "READ UNCOMMITTED"; break; case IsolationLevel.RepeatableRead: isolevel = "REPEATABLE READ"; break; case IsolationLevel.Serializable: isolevel = "SERIALIZABLE"; break; case IsolationLevel.ReadCommitted: isolevel = "READ COMMITTED"; break; #if NET_2_0 case IsolationLevel.Snapshot: isolevel = "SNAPSHOT"; break; case IsolationLevel.Unspecified: iso = IsolationLevel.ReadCommitted; isolevel = "READ COMMITTED"; break; case IsolationLevel.Chaos: throw new ArgumentOutOfRangeException ("IsolationLevel", string.Format (CultureInfo.CurrentCulture, "The IsolationLevel enumeration " + "value, {0}, is not supported by " + "the .Net Framework SqlClient " + "Data Provider.", (int) iso)); #endif default: #if NET_2_0 throw new ArgumentOutOfRangeException ("IsolationLevel", string.Format (CultureInfo.CurrentCulture, "The IsolationLevel enumeration value, {0}, is invalid.", (int) iso)); #else throw new ArgumentException ("Invalid IsolationLevel parameter: must be ReadCommitted, ReadUncommitted, RepeatableRead, or Serializable."); #endif } tds.Execute (String.Format ("SET TRANSACTION ISOLATION LEVEL {0};BEGIN TRANSACTION {1}", isolevel, transactionName)); transaction = new SqlTransaction (this, iso); return transaction; } public #if NET_2_0 override #endif // NET_2_0 void ChangeDatabase (string database) { if (!IsValidDatabaseName (database)) throw new ArgumentException (String.Format ("The database name {0} is not valid.", database)); if (state != ConnectionState.Open) throw new InvalidOperationException ("The connection is not open."); tds.Execute (String.Format ("use [{0}]", database)); } private void ChangeState (ConnectionState currentState) { if (currentState == state) return; ConnectionState originalState = state; state = currentState; OnStateChange (CreateStateChangeEvent (originalState, currentState)); } public #if NET_2_0 override #endif // NET_2_0 void Close () { if (transaction != null && transaction.IsOpen) transaction.Rollback (); if (dataReader != null || xmlReader != null) { if(tds != null) tds.SkipToEnd (); dataReader = null; xmlReader = null; } if (tds != null && tds.IsConnected) { if (pooling && tds.Pooling) { #if NET_2_0 if(pool != null) pool.ReleaseConnection (ref tds); #else if(pool != null) pool.ReleaseConnection (tds); #endif }else if(tds != null) tds.Disconnect (); } if (tds != null) { tds.TdsErrorMessage -= new TdsInternalErrorMessageEventHandler (ErrorHandler); tds.TdsInfoMessage -= new TdsInternalInfoMessageEventHandler (MessageHandler); } ChangeState (ConnectionState.Closed); } public new SqlCommand CreateCommand () { SqlCommand command = new SqlCommand (); command.Connection = this; return command; } private SqlInfoMessageEventArgs CreateSqlInfoMessageEvent (TdsInternalErrorCollection errors) { return new SqlInfoMessageEventArgs (errors); } private StateChangeEventArgs CreateStateChangeEvent (ConnectionState originalState, ConnectionState currentState) { return new StateChangeEventArgs (originalState, currentState); } protected override void Dispose (bool disposing) { try { if (disposing && !disposed) { if (State == ConnectionState.Open) Close (); ConnectionString = null; } } finally { disposed = true; base.Dispose (disposing); } } [MonoTODO ("Not sure what this means at present.")] public void EnlistDistributedTransaction (ITransaction transaction) { throw new NotImplementedException (); } object ICloneable.Clone () { return new SqlConnection (ConnectionString); } #if NET_2_0 protected override DbTransaction BeginDbTransaction (IsolationLevel isolationLevel) { return BeginTransaction (isolationLevel); } protected override DbCommand CreateDbCommand () { return CreateCommand (); } #else IDbTransaction IDbConnection.BeginTransaction () { return BeginTransaction (); } IDbTransaction IDbConnection.BeginTransaction (IsolationLevel iso) { return BeginTransaction (iso); } IDbCommand IDbConnection.CreateCommand () { return CreateCommand (); } #endif public #if NET_2_0 override #endif // NET_2_0 void Open () { string serverName = string.Empty; if (state == ConnectionState.Open) throw new InvalidOperationException ("The Connection is already Open (State=Open)"); if (connectionString == null || connectionString.Trim().Length == 0) throw new InvalidOperationException ("Connection string has not been initialized."); try { if (!pooling) { if(!ParseDataSource (dataSource, out port, out serverName)) throw new SqlException(20, 0, "SQL Server does not exist or access denied.", 17, "ConnectionOpen (Connect()).", dataSource, parms.ApplicationName, 0); tds = new Tds70 (serverName, port, PacketSize, ConnectionTimeout); } else { if(!ParseDataSource (dataSource, out port, out serverName)) throw new SqlException(20, 0, "SQL Server does not exist or access denied.", 17, "ConnectionOpen (Connect()).", dataSource, parms.ApplicationName, 0); TdsConnectionInfo info = new TdsConnectionInfo (serverName, port, packetSize, ConnectionTimeout, minPoolSize, maxPoolSize); pool = sqlConnectionPools.GetConnectionPool (connectionString, info); tds = pool.GetConnection (); } } catch (TdsTimeoutException e) { throw SqlException.FromTdsInternalException ((TdsInternalException) e); } catch (TdsInternalException e) { throw SqlException.FromTdsInternalException (e); } tds.TdsErrorMessage += new TdsInternalErrorMessageEventHandler (ErrorHandler); tds.TdsInfoMessage += new TdsInternalInfoMessageEventHandler (MessageHandler); if (!tds.IsConnected) { try { tds.Connect (parms); } catch { if (pooling) pool.ReleaseConnection (tds); throw; } } disposed = false; // reset this, so using () would call Close (). ChangeState (ConnectionState.Open); } private bool ParseDataSource (string theDataSource, out int thePort, out string theServerName) { theServerName = string.Empty; string theInstanceName = string.Empty; if (theDataSource == null) throw new ArgumentException("Format of initialization string does not conform to specifications"); thePort = DEFAULT_PORT; // default TCP port for SQL Server bool success = true; int idx = 0; if ((idx = theDataSource.IndexOf (",")) > -1) { theServerName = theDataSource.Substring (0, idx); string p = theDataSource.Substring (idx + 1); thePort = Int32.Parse (p); } else if ((idx = theDataSource.IndexOf ("\\")) > -1) { theServerName = theDataSource.Substring (0, idx); theInstanceName = theDataSource.Substring (idx + 1); // do port discovery via UDP port 1434 port = DiscoverTcpPortViaSqlMonitor (theServerName, theInstanceName); if (port == -1) success = false; } else theServerName = theDataSource; if (theServerName.Length == 0 || theServerName == "(local)" || theServerName == ".") theServerName = "localhost"; if ((idx = theServerName.IndexOf ("tcp:")) > -1) theServerName = theServerName.Substring (idx + 4); return success; } private bool ConvertIntegratedSecurity (string value) { if (value.ToUpper() == "SSPI") return true; return ConvertToBoolean("integrated security", value); } private bool ConvertToBoolean (string key, string value) { string upperValue = value.ToUpper (); if (upperValue == "TRUE" || upperValue == "YES") return true; else if (upperValue == "FALSE" || upperValue == "NO") return false; throw new ArgumentException (string.Format (CultureInfo.InvariantCulture, "Invalid value \"{0}\" for key '{1}'.", value, key)); } private int ConvertToInt32 (string key, string value) { try { return int.Parse (value); } catch (Exception ex) { throw new ArgumentException (string.Format (CultureInfo.InvariantCulture, "Invalid value \"{0}\" for key '{1}'.", value, key)); } } private int DiscoverTcpPortViaSqlMonitor (string ServerName, string InstanceName) { SqlMonitorSocket msock; msock = new SqlMonitorSocket (ServerName, InstanceName); int SqlServerPort = msock.DiscoverTcpPort (ConnectionTimeout); msock = null; return SqlServerPort; } void SetConnectionString (string connectionString) { SetDefaultConnectionParameters (); if ((connectionString == null) || (connectionString.Trim().Length == 0)) { this.connectionString = connectionString; return; } connectionString += ";"; bool inQuote = false; bool inDQuote = false; bool inName = true; string name = String.Empty; string value = String.Empty; StringBuilder sb = new StringBuilder (); for (int i = 0; i < connectionString.Length; i += 1) { char c = connectionString [i]; char peek; if (i == connectionString.Length - 1) peek = '\0'; else peek = connectionString [i + 1]; switch (c) { case '\'': if (inDQuote) sb.Append (c); else if (peek.Equals (c)) { sb.Append (c); i += 1; } else inQuote = !inQuote; break; case '"': if (inQuote) sb.Append (c); else if (peek.Equals (c)) { sb.Append (c); i += 1; } else inDQuote = !inDQuote; break; case ';': if (inDQuote || inQuote) sb.Append (c); else { if (name != String.Empty && name != null) { value = sb.ToString (); SetProperties (name.ToLower ().Trim() , value); } else if (sb.Length != 0) throw new ArgumentException ("Format of initialization string does not conform to specifications"); inName = true; name = String.Empty; value = String.Empty; sb = new StringBuilder (); } break; case '=': if (inDQuote || inQuote || !inName) sb.Append (c); else if (peek.Equals (c)) { sb.Append (c); i += 1; } else { name = sb.ToString (); sb = new StringBuilder (); inName = false; } break; case ' ': if (inQuote || inDQuote) sb.Append (c); else if (sb.Length > 0 && !peek.Equals (';')) sb.Append (c); break; default: sb.Append (c); break; } } connectionString = connectionString.Substring (0 , connectionString.Length-1); this.connectionString = connectionString; } void SetDefaultConnectionParameters () { if (parms == null) parms = new TdsConnectionParameters (); else parms.Reset (); dataSource = string.Empty; connectionTimeout = DEFAULT_CONNECTIONTIMEOUT; connectionReset = true; pooling = true; maxPoolSize = DEFAULT_MAXPOOLSIZE; minPoolSize = DEFAULT_MINPOOLSIZE; packetSize = DEFAULT_PACKETSIZE; port = DEFAULT_PORT; #if NET_2_0 async = false; #endif } private void SetProperties (string name , string value) { switch (name) { case "app" : case "application name" : parms.ApplicationName = value; break; case "attachdbfilename" : case "extended properties" : case "initial file name" : parms.AttachDBFileName = value; break; case "timeout" : case "connect timeout" : case "connection timeout" : int tmpTimeout = ConvertToInt32 ("connection timeout", value); if (tmpTimeout < 0) throw new ArgumentException ("Invalid CONNECTION TIMEOUT .. Must be an integer >=0 "); else connectionTimeout = tmpTimeout; break; case "connection lifetime" : break; case "connection reset" : connectionReset = ConvertToBoolean ("connection reset", value); break; case "language" : case "current language" : parms.Language = value; break; case "data source" : case "server" : case "address" : case "addr" : case "network address" : dataSource = value; break; case "encrypt": if (ConvertToBoolean(name, value)) throw new NotImplementedException("SSL encryption for" + " data sent between client and server is not" + " implemented."); break; case "enlist" : if (!ConvertToBoolean(name, value)) throw new NotImplementedException("Disabling the automatic" + " enlistment of connections in the thread's current" + " transaction context is not implemented."); break; case "initial catalog" : case "database" : parms.Database = value; break; case "integrated security" : case "trusted_connection" : parms.DomainLogin = ConvertIntegratedSecurity(value); break; case "max pool size" : int tmpMaxPoolSize = ConvertToInt32 (name, value); if (tmpMaxPoolSize < 0) throw new ArgumentException ("Invalid MAX POOL SIZE. Must be a intger >= 0"); else maxPoolSize = tmpMaxPoolSize; break; case "min pool size" : int tmpMinPoolSize = ConvertToInt32 (name, value); if (tmpMinPoolSize < 0) throw new ArgumentException ("Invalid MIN POOL SIZE. Must be a intger >= 0"); else minPoolSize = tmpMinPoolSize; break; #if NET_2_0 case "multipleactiveresultsets": break; case "asynchronous processing" : case "async" : async = ConvertToBoolean (name, value); break; #endif case "net" : case "network" : case "network library" : if (!value.ToUpper ().Equals ("DBMSSOCN")) throw new ArgumentException ("Unsupported network library."); break; case "packet size" : int tmpPacketSize = ConvertToInt32 (name, value); if (tmpPacketSize < 512 || tmpPacketSize > 32767) throw new ArgumentException ("Invalid 'Packet Size'. The integer must be between 512 and 32767"); else packetSize = tmpPacketSize; break; case "password" : case "pwd" : parms.Password = value; break; case "persistsecurityinfo" : case "persist security info" : // FIXME : not implemented // throw new NotImplementedException (); break; case "pooling" : pooling = ConvertToBoolean(name, value); break; case "uid" : case "user" : case "user id" : parms.User = value; break; case "wsid" : case "workstation id" : parms.Hostname = value; break; case "user instance": userInstance = ConvertToBoolean (name, value); break; default : throw new ArgumentException("Keyword not supported : '" + name + "'."); } } static bool IsValidDatabaseName (string database) { if ( database == null || database.Trim().Length == 0 || database.Length > 128) return false ; if (database[0] == '"' && database[database.Length] == '"') database = database.Substring (1, database.Length - 2); else if (Char.IsDigit (database[0])) return false; if (database[0] == '_') return false; foreach (char c in database.Substring (1, database.Length - 1)) if (!Char.IsLetterOrDigit (c) && c != '_' && c != '-') return false; return true; } private void OnSqlInfoMessage (SqlInfoMessageEventArgs value) { if (InfoMessage != null) InfoMessage (this, value); } #if !NET_2_0 private new void OnStateChange (StateChangeEventArgs value) { if (StateChange != null) StateChange (this, value); } #endif private sealed class SqlMonitorSocket : UdpClient { // UDP port that the SQL Monitor listens private static readonly int SqlMonitorUdpPort = 1434; //private static readonly string SqlServerNotExist = "SQL Server does not exist or access denied"; private string server; private string instance; internal SqlMonitorSocket (string ServerName, string InstanceName) : base (ServerName, SqlMonitorUdpPort) { server = ServerName; instance = InstanceName; } internal int DiscoverTcpPort (int timeoutSeconds) { int SqlServerTcpPort; Client.Blocking = false; // send command to UDP 1434 (SQL Monitor) to get // the TCP port to connect to the MS SQL server ASCIIEncoding enc = new ASCIIEncoding (); Byte[] rawrq = new Byte [instance.Length + 1]; rawrq[0] = 4; enc.GetBytes (instance, 0, instance.Length, rawrq, 1); int bytes = Send (rawrq, rawrq.Length); if (!Active) return -1; // Error bool result; long timeout = timeoutSeconds * 1000000; result = Client.Poll ((int)timeout, SelectMode.SelectRead); if (result == false) return -1; // Error if (Client.Available <= 0) return -1; // Error #if NET_2_0 IPEndPoint endpoint = new IPEndPoint (Dns.GetHostEntry ("localhost").AddressList [0], 0); #else IPEndPoint endpoint = new IPEndPoint (Dns.GetHostByName ("localhost").AddressList [0], 0); #endif Byte [] rawrs; rawrs = Receive (ref endpoint); string rs = Encoding.ASCII.GetString (rawrs); string[] rawtokens = rs.Split (';'); Hashtable data = new Hashtable (); for (int i = 0; i < rawtokens.Length / 2 && i < 256; i++) { data [rawtokens [i * 2]] = rawtokens [ i * 2 + 1]; } if (!data.ContainsKey ("tcp")) { string msg = "Mono does not support names pipes or shared memory " + "for connecting to SQL Server. Please enable the TCP/IP " + "protocol."; throw new NotImplementedException (msg); } SqlServerTcpPort = int.Parse ((string) data ["tcp"]); Close (); return SqlServerTcpPort; } } #if NET_2_0 struct ColumnInfo { public string name; public Type type; public ColumnInfo (string name, Type type) { this.name = name; this.type = type; } } static class ReservedWords { static readonly string [] reservedWords = { "ADD", "EXCEPT", "PERCENT", "ALL", "EXEC", "PLAN", "ALTER", "EXECUTE", "PRECISION", "AND", "EXISTS", "PRIMARY", "ANY", "EXIT", "PRINT", "AS", "FETCH", "PROC", "ASC", "FILE", "PROCEDURE", "AUTHORIZATION", "FILLFACTOR", "PUBLIC", "BACKUP", "FOR", "RAISERROR", "BEGIN", "FOREIGN", "READ", "BETWEEN", "FREETEXT", "READTEXT", "BREAK", "FREETEXTTABLE", "RECONFIGURE", "BROWSE", "FROM", "REFERENCES", "BULK", "FULL", "REPLICATION", "BY", "FUNCTION", "RESTORE", "CASCADE", "GOTO", "RESTRICT", "CASE", "GRANT", "RETURN", "CHECK", "GROUP", "REVOKE", "CHECKPOINT", "HAVING", "RIGHT", "CLOSE", "HOLDLOCK", "ROLLBACK", "CLUSTERED", "IDENTITY", "ROWCOUNT", "COALESCE", "IDENTITY_INSERT", "ROWGUIDCOL", "COLLATE", "IDENTITYCOL", "RULE", "COLUMN", "IF", "SAVE", "COMMIT", "IN", "SCHEMA", "COMPUTE", "INDEX", "SELECT", "CONSTRAINT", "INNER", "SESSION_USER", "CONTAINS", "INSERT", "SET", "CONTAINSTABLE", "INTERSECT", "SETUSER", "CONTINUE", "INTO", "SHUTDOWN", "CONVERT", "IS", "SOME", "CREATE", "JOIN", "STATISTICS", "CROSS", "KEY", "SYSTEM_USER", "CURRENT", "KILL", "TABLE", "CURRENT_DATE", "LEFT", "TEXTSIZE", "CURRENT_TIME", "LIKE", "THEN", "CURRENT_TIMESTAMP", "LINENO", "TO", "CURRENT_USER", "LOAD", "TOP", "CURSOR", "NATIONAL", "TRAN", "DATABASE", "NOCHECK", "TRANSACTION", "DBCC", "NONCLUSTERED", "TRIGGER", "DEALLOCATE", "NOT", "TRUNCATE", "DECLARE", "NULL", "TSEQUAL", "DEFAULT", "NULLIF", "UNION", "DELETE", "OF", "UNIQUE", "DENY", "OFF", "UPDATE", "DESC", "OFFSETS", "UPDATETEXT", "DISK", "ON", "USE", "DISTINCT", "OPEN", "USER", "DISTRIBUTED", "OPENDATASOURCE", "VALUES", "DOUBLE", "OPENQUERY", "VARYING", "DROP", "OPENROWSET", "VIEW", "DUMMY", "OPENXML", "WAITFOR", "DUMP", "OPTION", "WHEN", "ELSE", "OR", "WHERE", "END", "ORDER", "WHILE", "ERRLVL", "OUTER", "WITH", "ESCAPE", "OVER", "WRITETEXT", "ABSOLUTE", "FOUND", "PRESERVE", "ACTION", "FREE", "PRIOR", "ADMIN", "GENERAL", "PRIVILEGES", "AFTER", "GET", "READS", "AGGREGATE", "GLOBAL", "REAL", "ALIAS", "GO", "RECURSIVE", "ALLOCATE", "GROUPING", "REF", "ARE", "HOST", "REFERENCING", "ARRAY", "HOUR", "RELATIVE", "ASSERTION", "IGNORE", "RESULT", "AT", "IMMEDIATE", "RETURNS", "BEFORE", "INDICATOR", "ROLE", "BINARY", "INITIALIZE", "ROLLUP", "BIT", "INITIALLY", "ROUTINE", "BLOB", "INOUT", "ROW", "BOOLEAN", "INPUT", "ROWS", "BOTH", "INT", "SAVEPOINT", "BREADTH", "INTEGER", "SCROLL", "CALL", "INTERVAL", "SCOPE", "CASCADED", "ISOLATION", "SEARCH", "CAST", "ITERATE", "SECOND", "CATALOG", "LANGUAGE", "SECTION", "CHAR", "LARGE", "SEQUENCE", "CHARACTER", "LAST", "SESSION", "CLASS", "LATERAL", "SETS", "CLOB", "LEADING", "SIZE", "COLLATION", "LESS", "SMALLINT", "COMPLETION", "LEVEL", "SPACE", "CONNECT", "LIMIT", "SPECIFIC", "CONNECTION", "LOCAL", "SPECIFICTYPE", "CONSTRAINTS", "LOCALTIME", "SQL", "CONSTRUCTOR", "LOCALTIMESTAMP", "SQLEXCEPTION", "CORRESPONDING", "LOCATOR", "SQLSTATE", "CUBE", "MAP", "SQLWARNING", "CURRENT_PATH", "MATCH", "START", "CURRENT_ROLE", "MINUTE", "STATE", "CYCLE", "MODIFIES", "STATEMENT", "DATA", "MODIFY", "STATIC", "DATE", "MODULE", "STRUCTURE", "DAY", "MONTH", "TEMPORARY", "DEC", "NAMES", "TERMINATE", "DECIMAL", "NATURAL", "THAN", "DEFERRABLE", "NCHAR", "TIME", "DEFERRED", "NCLOB", "TIMESTAMP", "DEPTH", "NEW", "TIMEZONE_HOUR", "DEREF", "NEXT", "TIMEZONE_MINUTE", "DESCRIBE", "NO", "TRAILING", "DESCRIPTOR", "NONE", "TRANSLATION", "DESTROY", "NUMERIC", "TREAT", "DESTRUCTOR", "OBJECT", "TRUE", "DETERMINISTIC", "OLD", "UNDER", "DICTIONARY", "ONLY", "UNKNOWN", "DIAGNOSTICS", "OPERATION", "UNNEST", "DISCONNECT", "ORDINALITY", "USAGE", "DOMAIN", "OUT", "USING", "DYNAMIC", "OUTPUT", "VALUE", "EACH", "PAD", "VARCHAR", "END-EXEC", "PARAMETER", "VARIABLE", "EQUALS", "PARAMETERS", "WHENEVER", "EVERY", "PARTIAL", "WITHOUT", "EXCEPTION", "PATH", "WORK", "EXTERNAL", "POSTFIX", "WRITE", "FALSE", "PREFIX", "YEAR", "FIRST", "PREORDER", "ZONE", "FLOAT", "PREPARE", "ADA", "AVG", "BIT_LENGTH", "CHAR_LENGTH", "CHARACTER_LENGTH", "COUNT", "EXTRACT", "FORTRAN", "INCLUDE", "INSENSITIVE", "LOWER", "MAX", "MIN", "OCTET_LENGTH", "OVERLAPS", "PASCAL", "POSITION", "SQLCA", "SQLCODE", "SQLERROR", "SUBSTRING", "SUM", "TRANSLATE", "TRIM", "UPPER" }; static DataTable instance; static public DataTable Instance { get { if (instance == null) { DataRow row = null; instance = new DataTable ("ReservedWords"); instance.Columns.Add ("ReservedWord", typeof(string)); foreach (string reservedWord in reservedWords) { row = instance.NewRow(); row["ReservedWord"] = reservedWord; instance.Rows.Add(row); } } return instance; } } } static class MetaDataCollections { static readonly ColumnInfo [] columns = { new ColumnInfo ("CollectionName", typeof (string)), new ColumnInfo ("NumberOfRestrictions", typeof (int)), new ColumnInfo ("NumberOfIdentifierParts", typeof (int)) }; static readonly object [][] rows = { new object [] {"MetaDataCollections", 0, 0}, new object [] {"DataSourceInformation", 0, 0}, new object [] {"DataTypes", 0, 0}, new object [] {"Restrictions", 0, 0}, new object [] {"ReservedWords", 0, 0}, new object [] {"Users", 1, 1}, new object [] {"Databases", 1, 1}, new object [] {"Tables", 4, 3}, new object [] {"Columns", 4, 4}, new object [] {"StructuredTypeMembers", 4, 4}, new object [] {"Views", 3, 3}, new object [] {"ViewColumns", 4, 4}, new object [] {"ProcedureParameters", 4, 1}, new object [] {"Procedures", 4, 3}, new object [] {"ForeignKeys", 4, 3}, new object [] {"IndexColumns", 5, 4}, new object [] {"Indexes", 4, 3}, new object [] {"UserDefinedTypes", 2, 1} }; static DataTable instance; static public DataTable Instance { get { if (instance == null) { instance = new DataTable ("MetaDataCollections"); foreach (ColumnInfo c in columns) instance.Columns.Add (c.name, c.type); foreach (object [] row in rows) instance.LoadDataRow (row, true); } return instance; } } } static class DataSourceInformation { static readonly ColumnInfo [] columns = { new ColumnInfo ("CompositeIdentifierSeparatorPattern", typeof (string)), new ColumnInfo ("DataSourceProductName", typeof(string)), new ColumnInfo ("DataSourceProductVersion", typeof(string)), new ColumnInfo ("DataSourceProductVersionNormalized", typeof(string)), new ColumnInfo ("GroupByBehavior", typeof(GroupByBehavior)), new ColumnInfo ("IdentifierPattern", typeof(string)), new ColumnInfo ("IdentifierCase", typeof(IdentifierCase)), new ColumnInfo ("OrderByColumnsInSelect", typeof(bool)), new ColumnInfo ("ParameterMarkerFormat", typeof(string)), new ColumnInfo ("ParameterMarkerPattern", typeof(string)), new ColumnInfo ("ParameterNameMaxLength", typeof(int)), new ColumnInfo ("ParameterNamePattern", typeof(string)), new ColumnInfo ("QuotedIdentifierPattern", typeof(string)), new ColumnInfo ("QuotedIdentifierCase", typeof(IdentifierCase)), new ColumnInfo ("StatementSeparatorPattern", typeof(string)), new ColumnInfo ("StringLiteralPattern", typeof(string)), new ColumnInfo ("SupportedJoinOperators", typeof(SupportedJoinOperators)) }; static public DataTable GetInstance (SqlConnection conn) { DataTable table = new DataTable ("DataSourceInformation"); foreach (ColumnInfo c in columns) table.Columns.Add (c.name, c.type); DataRow row = table.NewRow (); row [0] = "\\."; row [1] = "Microsoft SQL Server"; row [2] = conn.ServerVersion;; row [3] = conn.ServerVersion;; row [4] = GroupByBehavior.Unrelated; row [5] = @"(^\[\p{Lo}\p{Lu}\p{Ll}_@#][\p{Lo}\p{Lu}\p{Ll}\p{Nd}@$#_]*$)|(^\[[^\]\0]|\]\]+\]$)|(^\""[^\""\0]|\""\""+\""$)"; row [6] = IdentifierCase.Insensitive; // FIXME: obtain this from SQL Server row [7] = false; row [8] = "{0}"; row [9] = @"@[\p{Lo}\p{Lu}\p{Ll}\p{Lm}_@#][\p{Lo}\p{Lu}\p{Ll}\p{Lm}\p{Nd}\uff3f_@#\$]*(?=\s+|$)"; row [10] = 128; row [11] = @"^[\p{Lo}\p{Lu}\p{Ll}\p{Lm}_@#][\p{Lo}\p{Lu}\p{Ll}\p{Lm}\p{Nd}\uff3f_@#\$]*(?=\s+|$)"; row [12] = @"(([^\[]|\]\])*)"; row [13] = IdentifierCase.Insensitive; // FIXME: obtain this from SQL Server row [14] =";"; row [15] = "'(([^']|'')*)'"; row [16] = (SupportedJoinOperators.FullOuter | SupportedJoinOperators.Inner | SupportedJoinOperators.LeftOuter | SupportedJoinOperators.RightOuter); table.Rows.Add (row); return table; } } static class DataTypes { static readonly ColumnInfo [] columns = { new ColumnInfo ("TypeName", typeof(string)), new ColumnInfo ("ProviderDbType", typeof(int)), new ColumnInfo ("ColumnSize", typeof(long)), new ColumnInfo ("CreateFormat", typeof(string)), new ColumnInfo ("CreateParameters", typeof(string)), new ColumnInfo ("DataType", typeof(string)), new ColumnInfo ("IsAutoIncrementable", typeof(bool)), new ColumnInfo ("IsBestMatch", typeof(bool)), new ColumnInfo ("IsCaseSensitive", typeof(bool)), new ColumnInfo ("IsFixedLength", typeof(bool)), new ColumnInfo ("IsFixedPrecisionScale", typeof(bool)), new ColumnInfo ("IsLong", typeof(bool)), new ColumnInfo ("IsNullable", typeof(bool)), new ColumnInfo ("IsSearchable", typeof(bool)), new ColumnInfo ("IsSearchableWithLike", typeof(bool)), new ColumnInfo ("IsUnsigned", typeof(bool)), new ColumnInfo ("MaximumScale", typeof(short)), new ColumnInfo ("MinimumScale", typeof(short)), new ColumnInfo ("IsConcurrencyType", typeof(bool)), new ColumnInfo ("IsLiteralSupported", typeof(bool)), new ColumnInfo ("LiteralPrefix", typeof(string)), new ColumnInfo ("LiteralSuffix", typeof(string)) }; static readonly object [][] rows = { new object [] {"smallint", 16, 5, "smallint", null, "System.Int16", true, true, false, true, true, false, true, true, false, false, null, null, false, null, null, null}, new object [] {"int", 8, 10, "int", null, "System.Int32", true, true, false, true, true, false, true, true, false, false, null, null, false, null, null, null}, new object [] {"real", 13, 7, "real", null, "System.Single", false, true, false, true, false, false, true, true, false, false, null, null, false, null, null, null}, new object [] {"float", 6, 53, "float({0})", "number of bits used to store the mantissa", "System.Double", false, true, false, true, false, false, true, true, false, false, null, null, false, null, null, null}, new object [] {"money", 9, 19, "money", null, "System.Decimal", false, false, false, true, true, false, true, true, false, false, null, null, false, null, null, null}, new object [] {"smallmoney", 17, 10, "smallmoney", null, "System.Decimal", false, false, false, true, true, false, true, true, false, false, null, null, false, null, null, null}, new object [] {"bit", 2, 1, "bit", null, "System.Boolean", false, false, false, true, false, false, true, true, false, null, null, null, false, null, null, null}, new object [] {"tinyint", 20, 3, "tinyint", null, "System.SByte", true, true, false, true, true, false, true, true, false, true, null, null, false, null, null, null}, new object [] {"bigint", 0, 19, "bigint", null, "System.Int64", true, true, false, true, true, false, true, true, false, false, null, null, false, null, null, null}, new object [] {"timestamp", 19, 8, "timestamp", null, "System.Byte[]", false, false, false, true, false, false, false, true, false, null, null, null, true, null, "0x", null}, new object [] {"binary", 1, 8000, "binary({0})", "length", "System.Byte[]", false, true, false, true, false, false, true, true, false, null, null, null, false, null, "0x", null}, new object [] {"image", 7, 2147483647, "image", null, "System.Byte[]", false, true, false, false, false, true, true, false, false, null, null, null, false, null, "0x", null}, new object [] {"text", 18, 2147483647, "text", null, "System.String", false, true, false, false, false, true, true, false, true, null, null, null, false, null, "'", "'"}, new object [] {"ntext", 11, 1073741823, "ntext", null, "System.String", false, true, false, false, false, true, true, false, true, null, null, null, false, null, "N'", "'"}, new object [] {"decimal", 5, 38, "decimal({0}, {1})", "precision,scale", "System.Decimal", true, true, false, true, false, false, true, true, false, false, 38, 0, false, null, null, null}, new object [] {"numeric", 5, 38, "numeric({0}, {1})", "precision,scale", "System.Decimal", true, true, false, true, false, false, true, true, false, false, 38, 0, false, null, null, null}, new object [] {"datetime", 4, 23, "datetime", null, "System.DateTime", false, true, false, true, false, false, true, true, true, null, null, null, false, null, "{ts '", "'}"}, new object [] {"smalldatetime", 15, 16, "smalldatetime", null, "System.DateTime", false, true, false, true, false, false, true, true, true, null, null, null, false, null, "{ts '", "'}"}, new object [] {"sql_variant", 23, null, "sql_variant", null, "System.Object", false, true, false, false, false, false, true, true, false, null, null, null, false, false, null, null}, new object [] {"xml", 25, 2147483647, "xml", null, "System.String", false, false, false, false, false, true, true, false, false, null, null, null, false, false, null, null}, new object [] {"varchar", 22, 2147483647, "varchar({0})", "max length", "System.String", false, true, false, false, false, false, true, true, true, null, null, null, false, null, "'", "'"}, new object [] {"char", 3, 2147483647, "char({0})", "length", "System.String", false, true, false, true, false, false, true, true, true, null, null, null, false, null, "'", "'"}, new object [] {"nchar", 10, 1073741823, "nchar({0})", "length", "System.String", false, true, false, true, false, false, true, true, true, null, null, null, false, null, "N'", "'"}, new object [] {"nvarchar", 12, 1073741823, "nvarchar({0})", "max length", "System.String", false, true, false, false, false, false, true, true, true, null, null, null, false, null, "N'", "'"}, new object [] {"varbinary", 21, 1073741823, "varbinary({0})", "max length", "System.Byte[]", false, true, false, false, false, false, true, true, false, null, null, null, false, null, "0x", null}, new object [] {"uniqueidentifier", 14, 16, "uniqueidentifier", null, "System.Guid", false, true, false, true, false, false, true, true, false, null, null, null, false, null, "'", "'"}, new object [] {"date", 31, 3L, "date", DBNull.Value, "System.DateTime", false, false, false, true, true, false, true, true, true, DBNull.Value, DBNull.Value, DBNull.Value, false, DBNull.Value, "{ts '", "'}"}, new object [] {"time", 32, 5L, "time({0})", "scale", "System.TimeSpan", false, false, false, false, false, false, true, true, true, DBNull.Value, (short) 7, (short) 0, false, DBNull.Value, "{ts '", "'}"}, new object [] {"datetime2", 33, 8L, "datetime2({0})", "scale", "System.DateTime", false, true, false, false, false, false, true, true, true, DBNull.Value, (short) 7, (short) 0, false, DBNull.Value, "{ts '", "'}"}, new object [] {"datetimeoffset", 34, 10L, "datetimeoffset({0})", "scale", "System.DateTimeOffset", false, true, false, false, false, false, true, true, true, DBNull.Value, (short) 7, (short) 0, false, DBNull.Value, "{ts '", "'}"} }; static DataTable instance; static public DataTable Instance { get { if (instance == null) { instance = new DataTable ("DataTypes"); foreach (ColumnInfo c in columns) instance.Columns.Add (c.name, c.type); foreach (object [] row in rows) instance.LoadDataRow (row, true); } return instance; } } } static class Restrictions { static readonly ColumnInfo [] columns = { new ColumnInfo ("CollectionName", typeof (string)), new ColumnInfo ("RestrictionName", typeof(string)), new ColumnInfo ("ParameterName", typeof(string)), new ColumnInfo ("RestrictionDefault", typeof(string)), new ColumnInfo ("RestrictionNumber", typeof(int)) }; static readonly object [][] rows = { new object [] {"Users", "User_Name", "@Name", "name", 1}, new object [] {"Databases", "Name", "@Name", "Name", 1}, new object [] {"Tables", "Catalog", "@Catalog", "TABLE_CATALOG", 1}, new object [] {"Tables", "Owner", "@Owner", "TABLE_SCHEMA", 2}, new object [] {"Tables", "Table", "@Name", "TABLE_NAME", 3}, new object [] {"Tables", "TableType", "@TableType", "TABLE_TYPE", 4}, new object [] {"Columns", "Catalog", "@Catalog", "TABLE_CATALOG", 1}, new object [] {"Columns", "Owner", "@Owner", "TABLE_SCHEMA", 2}, new object [] {"Columns", "Table", "@Table", "TABLE_NAME", 3}, new object [] {"Columns", "Column", "@Column", "COLUMN_NAME", 4}, new object [] {"StructuredTypeMembers", "Catalog", "@Catalog", "TYPE_CATALOG", 1}, new object [] {"StructuredTypeMembers", "Owner", "@Owner", "TYPE_SCHEMA", 2}, new object [] {"StructuredTypeMembers", "Type", "@Type", "TYPE_NAME", 3}, new object [] {"StructuredTypeMembers", "Member", "@Member", "MEMBER_NAME", 4}, new object [] {"Views", "Catalog", "@Catalog", "TABLE_CATALOG", 1}, new object [] {"Views", "Owner", "@Owner", "TABLE_SCHEMA", 2}, new object [] {"Views", "Table", "@Table", "TABLE_NAME", 3}, new object [] {"ViewColumns", "Catalog", "@Catalog", "VIEW_CATALOG", 1}, new object [] {"ViewColumns", "Owner", "@Owner", "VIEW_SCHEMA", 2}, new object [] {"ViewColumns", "Table", "@Table", "VIEW_NAME", 3}, new object [] {"ViewColumns", "Column", "@Column", "COLUMN_NAME", 4}, new object [] {"ProcedureParameters", "Catalog", "@Catalog", "SPECIFIC_CATALOG", 1}, new object [] {"ProcedureParameters", "Owner", "@Owner", "SPECIFIC_SCHEMA", 2}, new object [] {"ProcedureParameters", "Name", "@Name", "SPECIFIC_NAME", 3}, new object [] {"ProcedureParameters", "Parameter", "@Parameter", "PARAMETER_NAME", 4}, new object [] {"Procedures", "Catalog", "@Catalog", "SPECIFIC_CATALOG", 1}, new object [] {"Procedures", "Owner", "@Owner", "SPECIFIC_SCHEMA", 2}, new object [] {"Procedures", "Name", "@Name", "SPECIFIC_NAME", 3}, new object [] {"Procedures", "Type", "@Type", "ROUTINE_TYPE", 4}, new object [] {"IndexColumns", "Catalog", "@Catalog", "db_name()", 1}, new object [] {"IndexColumns", "Owner", "@Owner", "user_name()", 2}, new object [] {"IndexColumns", "Table", "@Table", "o.name", 3}, new object [] {"IndexColumns", "ConstraintName", "@ConstraintName", "x.name", 4}, new object [] {"IndexColumns", "Column", "@Column", "c.name", 5}, new object [] {"Indexes", "Catalog", "@Catalog", "db_name()", 1}, new object [] {"Indexes", "Owner", "@Owner", "user_name()", 2}, new object [] {"Indexes", "Table", "@Table", "o.name", 3}, new object [] {"Indexes", "Name", "@Name", "x.name", 4}, new object [] {"UserDefinedTypes", "assembly_name", "@AssemblyName", "assemblies.name", 1}, new object [] {"UserDefinedTypes", "udt_name", "@UDTName", "types.assembly_class", 2}, new object [] {"ForeignKeys", "Catalog", "@Catalog", "CONSTRAINT_CATALOG", 1}, new object [] {"ForeignKeys", "Owner", "@Owner", "CONSTRAINT_SCHEMA", 2}, new object [] {"ForeignKeys", "Table", "@Table", "TABLE_NAME", 3}, new object [] {"ForeignKeys", "Name", "@Name", "CONSTRAINT_NAME", 4} }; static DataTable instance; static public DataTable Instance { get { if (instance == null) { instance = new DataTable ("Restrictions"); foreach (ColumnInfo c in columns) instance.Columns.Add (c.name, c.type); foreach (object [] row in rows) instance.LoadDataRow (row, true); } return instance; } } } public override DataTable GetSchema () { if (state == ConnectionState.Closed) throw ExceptionHelper.ConnectionClosed (); return MetaDataCollections.Instance; } public override DataTable GetSchema (String collectionName) { return GetSchema (collectionName, null); } public override DataTable GetSchema (String collectionName, string [] restrictionValues) { // LAMESPEC: In MS.NET, if collectionName is null, it throws ArgumentException. if (state == ConnectionState.Closed) throw ExceptionHelper.ConnectionClosed (); String cName = null; DataTable schemaTable = MetaDataCollections.Instance; int length = restrictionValues == null ? 0 : restrictionValues.Length; foreach (DataRow row in schemaTable.Rows) { if (String.Compare ((string) row["CollectionName"], collectionName, true) == 0) { if (length > (int) row["NumberOfRestrictions"]) { throw new ArgumentException ("More restrictions were provided " + "than the requested schema ('" + row["CollectionName"].ToString () + "') supports"); } cName = row["CollectionName"].ToString(); } } if (cName == null) throw new ArgumentException (string.Format (CultureInfo.InvariantCulture, "The requested collection ({0}) is not defined.", collectionName)); SqlCommand command = null; DataTable dataTable = new DataTable (); SqlDataAdapter dataAdapter = new SqlDataAdapter (); switch (cName) { case "Databases": command = new SqlCommand ("select name as database_name, dbid, crdate as create_date " + "from master.sys.sysdatabases where (name = @Name or (@Name " + "is null))", this); command.Parameters.Add ("@Name", SqlDbType.NVarChar, 4000); break; case "ForeignKeys": command = new SqlCommand ("select CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, CONSTRAINT_NAME, " + "TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, CONSTRAINT_TYPE, " + "IS_DEFERRABLE, INITIALLY_DEFERRED from " + "INFORMATION_SCHEMA.TABLE_CONSTRAINTS where (CONSTRAINT_CATALOG" + " = @Catalog or (@Catalog is null)) and (CONSTRAINT_SCHEMA = " + "@Owner or (@Owner is null)) and (TABLE_NAME = @Table or (" + "@Table is null)) and (CONSTRAINT_NAME = @Name or (@Name is null))" + " and CONSTRAINT_TYPE = 'FOREIGN KEY' order by CONSTRAINT_CATALOG," + " CONSTRAINT_SCHEMA, CONSTRAINT_NAME", this); command.Parameters.Add ("@Catalog", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Owner", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Table", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Name", SqlDbType.NVarChar, 4000); break; case "Indexes": command = new SqlCommand ("select distinct db_name() as constraint_catalog, " + "constraint_schema = user_name (o.uid), " + "constraint_name = x.name, table_catalog = db_name (), " + "table_schema = user_name (o.uid), table_name = o.name, " + "index_name = x.name from sysobjects o, sysindexes x, " + "sysindexkeys xk where o.type in ('U') and x.id = o.id and " + "o.id = xk.id and x.indid = xk.indid and xk.keyno = x.keycnt " + "and (db_name() = @Catalog or (@Catalog is null)) and " + "(user_name() = @Owner or (@Owner is null)) and (o.name = " + "@Table or (@Table is null)) and (x.name = @Name or (@Name is null))" + "order by table_name, index_name", this); command.Parameters.Add ("@Catalog", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Owner", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Table", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Name", SqlDbType.NVarChar, 4000); break; case "IndexColumns": command = new SqlCommand ("select distinct db_name() as constraint_catalog, " + "constraint_schema = user_name (o.uid), constraint_name = x.name, " + "table_catalog = db_name (), table_schema = user_name (o.uid), " + "table_name = o.name, column_name = c.name, " + "ordinal_position = convert (int, xk.keyno), keyType = c.xtype, " + "index_name = x.name from sysobjects o, sysindexes x, syscolumns c, " + "sysindexkeys xk where o.type in ('U') and x.id = o.id and o.id = c.id " + "and o.id = xk.id and x.indid = xk.indid and c.colid = xk.colid " + "and xk.keyno <= x.keycnt and permissions (o.id, c.name) <> 0 " + "and (db_name() = @Catalog or (@Catalog is null)) and (user_name() " + "= @Owner or (@Owner is null)) and (o.name = @Table or (@Table is" + " null)) and (x.name = @ConstraintName or (@ConstraintName is null)) " + "and (c.name = @Column or (@Column is null)) order by table_name, " + "index_name", this); command.Parameters.Add ("@Catalog", SqlDbType.NVarChar, 8); command.Parameters.Add ("@Owner", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Table", SqlDbType.NVarChar, 13); command.Parameters.Add ("@ConstraintName", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Column", SqlDbType.NVarChar, 4000); break; case "Procedures": command = new SqlCommand ("select SPECIFIC_CATALOG, SPECIFIC_SCHEMA, SPECIFIC_NAME, " + "ROUTINE_CATALOG, ROUTINE_SCHEMA, ROUTINE_NAME, ROUTINE_TYPE, " + "CREATED, LAST_ALTERED from INFORMATION_SCHEMA.ROUTINES where " + "(SPECIFIC_CATALOG = @Catalog or (@Catalog is null)) and " + "(SPECIFIC_SCHEMA = @Owner or (@Owner is null)) and (SPECIFIC_NAME" + " = @Name or (@Name is null)) and (ROUTINE_TYPE = @Type or (@Type " + "is null)) order by SPECIFIC_CATALOG, SPECIFIC_SCHEMA, SPECIFIC_NAME", this); command.Parameters.Add ("@Catalog", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Owner", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Name", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Type", SqlDbType.NVarChar, 4000); break; case "ProcedureParameters": command = new SqlCommand ("select SPECIFIC_CATALOG, SPECIFIC_SCHEMA, SPECIFIC_NAME, " + "ORDINAL_POSITION, PARAMETER_MODE, IS_RESULT, AS_LOCATOR, " + "PARAMETER_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, " + "CHARACTER_OCTET_LENGTH, COLLATION_CATALOG, COLLATION_SCHEMA, " + "COLLATION_NAME, CHARACTER_SET_CATALOG, CHARACTER_SET_SCHEMA, " + "CHARACTER_SET_NAME, NUMERIC_PRECISION, NUMERIC_PRECISION_RADIX, " + "NUMERIC_SCALE, DATETIME_PRECISION, INTERVAL_TYPE, " + "INTERVAL_PRECISION from INFORMATION_SCHEMA.PARAMETERS where " + "(SPECIFIC_CATALOG = @Catalog or (@Catalog is null)) and " + "(SPECIFIC_SCHEMA = @Owner or (@Owner is null)) and (SPECIFIC_NAME = " + "@Name or (@Name is null)) and (PARAMETER_NAME = @Parameter or (" + "@Parameter is null)) order by SPECIFIC_CATALOG, SPECIFIC_SCHEMA," + " SPECIFIC_NAME, PARAMETER_NAME", this); command.Parameters.Add ("@Catalog", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Owner", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Name", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Parameter", SqlDbType.NVarChar, 4000); break; case "Tables": command = new SqlCommand ("select TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, TABLE_TYPE " + "from INFORMATION_SCHEMA.TABLES where" + " (TABLE_CATALOG = @catalog or (@catalog is null)) and " + "(TABLE_SCHEMA = @owner or (@owner is null))and " + "(TABLE_NAME = @name or (@name is null)) and " + "(TABLE_TYPE = @table_type or (@table_type is null))", this); command.Parameters.Add ("@catalog", SqlDbType.NVarChar, 8); command.Parameters.Add ("@owner", SqlDbType.NVarChar, 3); command.Parameters.Add ("@name", SqlDbType.NVarChar, 11); command.Parameters.Add ("@table_type", SqlDbType.NVarChar, 10); break; case "Columns": command = new SqlCommand ("select TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME, " + "ORDINAL_POSITION, COLUMN_DEFAULT, IS_NULLABLE, DATA_TYPE, " + "CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH, " + "NUMERIC_PRECISION, NUMERIC_PRECISION_RADIX, NUMERIC_SCALE, " + "DATETIME_PRECISION, CHARACTER_SET_CATALOG, CHARACTER_SET_SCHEMA, " + "CHARACTER_SET_NAME, COLLATION_CATALOG from INFORMATION_SCHEMA.COLUMNS" + " where (TABLE_CATALOG = @Catalog or (@Catalog is null)) and (" + "TABLE_SCHEMA = @Owner or (@Owner is null)) and (TABLE_NAME = @table" + " or (@Table is null)) and (COLUMN_NAME = @column or (@Column is null" + ")) order by TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME", this); command.Parameters.Add ("@Catalog", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Owner", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Table", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Column", SqlDbType.NVarChar, 4000); break; case "Users": command = new SqlCommand ("select uid, name as user_name, createdate, updatedate from sysusers" + " where (name = @Name or (@Name is null))", this); command.Parameters.Add ("@Name", SqlDbType.NVarChar, 4000); break; case "StructuredTypeMembers": // Only available on SQL Server 2008 // Running it again SQL 2005 results in the following exception: // Unable to build the 'StructuredTypeMembers' collection because // execution of the SQL query failed. See the inner exception for details. // ---> System.Data.SqlClient.SqlException: Invalid object name 'sys.table_types'. // // I don't have access to SQL Server 2008 right now, // and can't find any online documentation on the 'sys.table_types' // view throw new NotImplementedException (); case "Views": command = new SqlCommand ("select TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, CHECK_OPTION, " + "IS_UPDATABLE from INFORMATION_SCHEMA.VIEWS where (TABLE_CATALOG" + " = @Catalog or (@Catalog is null)) TABLE_SCHEMA = @Owner or " + "(@Owner is null)) and (TABLE_NAME = @table or (@Table is null))" + " order by TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME", this); command.Parameters.Add ("@Catalog", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Owner", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Table", SqlDbType.NVarChar, 4000); break; case "ViewColumns": command = new SqlCommand ("select VIEW_CATALOG, VIEW_SCHEMA, VIEW_NAME, TABLE_CATALOG, " + "TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME from " + "INFORMATION_SCHEMA.VIEW_COLUMN_USAGE where (VIEW_CATALOG = " + "@Catalog (@Catalog is null)) and (VIEW_SCHEMA = @Owner (@Owner" + " is null)) and (VIEW_NAME = @Table or (@Table is null)) and " + "(COLUMN_NAME = @Column or (@Column is null)) order by " + "VIEW_CATALOG, VIEW_SCHEMA, VIEW_NAME", this); command.Parameters.Add ("@Catalog", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Owner", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Table", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@Column", SqlDbType.NVarChar, 4000); break; case "UserDefinedTypes": command = new SqlCommand ("select assemblies.name as assembly_name, types.assembly_class " + "as udt_name, ASSEMBLYPROPERTY(assemblies.name, 'VersionMajor') " + "as version_major, ASSEMBLYPROPERTY(assemblies.name, 'VersionMinor') " + "as version_minor, ASSEMBLYPROPERTY(assemblies.name, 'VersionBuild') " + "as version_build, ASSEMBLYPROPERTY(assemblies.name, 'VersionRevision') " + "as version_revision, ASSEMBLYPROPERTY(assemblies.name, 'CultureInfo') " + "as culture_info, ASSEMBLYPROPERTY(assemblies.name, 'PublicKey') " + "as public_key, is_fixed_length, max_length, Create_Date, " + "Permission_set_desc from sys.assemblies as assemblies join " + "sys.assembly_types as types on assemblies.assembly_id = types.assembly_id" + " where (assportemblies.name = @AssemblyName or (@AssemblyName is null)) and " + "(types.assembly_class = @UDTName or (@UDTName is null))", this); command.Parameters.Add ("@AssemblyName", SqlDbType.NVarChar, 4000); command.Parameters.Add ("@UDTName", SqlDbType.NVarChar, 4000); break; case "MetaDataCollections": return MetaDataCollections.Instance; case "DataSourceInformation": return DataSourceInformation.GetInstance (this); case "DataTypes": return DataTypes.Instance; case "ReservedWords": return ReservedWords.Instance; case "Restrictions": return Restrictions.Instance; } for (int i = 0; i < length; i++) { command.Parameters[i].Value = restrictionValues[i]; } dataAdapter.SelectCommand = command; dataAdapter.Fill (dataTable); return dataTable; } public static void ChangePassword (string connectionString, string newPassword) { if (String.IsNullOrEmpty (connectionString)) throw new ArgumentNullException ("The 'connectionString' cannot be null or empty."); if (String.IsNullOrEmpty (newPassword)) throw new ArgumentNullException ("The 'newPassword' cannot be null or empty."); if (newPassword.Length > 128) throw new ArgumentException ("The length of 'newPassword' cannot exceed 128 characters."); using (SqlConnection conn = new SqlConnection (connectionString)) { conn.Open (); conn.tds.Execute (String.Format ("sp_password '{0}', '{1}', '{2}'", conn.parms.Password, newPassword, conn.parms.User)); } } public static void ClearAllPools () { #if NET_2_0 IDictionary pools = SqlConnection.sqlConnectionPools.GetConnectionPool (); #else Hashtable pools = SqlConnection.sqlConnectionPools.GetConnectionPool (); #endif foreach (TdsConnectionPool pool in pools.Values) { if (pool != null) { pool.ResetConnectionPool (); Tds tds = pool.GetConnection (); tds.Pooling = false; } } } public static void ClearPool (SqlConnection connection) { if (connection.pooling) { connection.pooling = false; if (connection.pool != null) connection.pool.ResetConnectionPool (connection.Tds); } } #endif // NET_2_0 #endregion // Methods #if NET_2_0 #region Fields Net 2 bool async = false; #endregion // Fields Net 2 #region Properties Net 2 #if NET_1_0 [DataSysDescription ("Enable Asynchronous processing, 'Asynchrouse Processing=true/false' in the ConnectionString.")] #endif [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)] internal bool AsyncProcessing { get { return async; } } #endregion // Properties Net 2 #endif // NET_2_0 } }