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Devart.Data.DB2 Namespace / DB2Connection Class
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    DB2Connection Class
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    Represents an open connection to DB2.
    Syntax
    Remarks

    A DB2Connection object represents a unique connection to DB2. Use it in conjunction with DB2Command, DB2DataReader, DB2DataAdapter or other components for convenient interoperation with DB2.

    When you create an instance of DB2Connection, all properties are set to their initial values. For a list of these values, see ConnectionString.

    If the DB2Connection goes out of scope, it is not closed. Therefore, you must explicitly close the connection by calling Close.

    Note that DB2Connection instance is not guaranteed to be thread safe. You should avoid using the same DB2Connection in several threads at the same time. It is recommended to open a new connection per thread and to close it when the work is done. Actually, connections will not be created/disposed every time with the Pooling=true; connection string option - connections will be stored at connection pool. This boosts performance greatly.

    A single DB2Connection can be used by many DB2Command objects on the assumption that all operations will be done consecutively. In other words, you can not execute a SQL statement while an asynchronous operation is in progress.

    This class supports cross-form data binding with the InterForm Technology.

    Example
    The following example creates a DB2Command and a DB2Connection. The DB2Connection is opened and set as the Connection property. The example then calls ExecuteNonQuery method, and closes the connection. To accomplish this, the ExecuteNonQuery is passed a connection string and a query string that is SQL INSERT statement.
    public void InsertRow(string db2ConnectionString)
    {
      // If the connection string is empty, use default.
      if(db2ConnectionString == "")
      {
        db2ConnectionString = 
            "user id=db2admin;server=db2;database=SAMPLE;";
      }
      DB2Connection myConn = new DB2Connection(db2ConnectionString);
      string myInsertQuery = "INSERT INTO DEPT VALUES (50,'Development','Philadelphia')";
      DB2Command db2Command = new DB2Command(myInsertQuery);
      db2Command.Connection = myConn;
      myConn.Open();
      try
      {
        db2Command.ExecuteNonQuery();
      }
      finally
      {
        myConn.Close();
      }
    }
    Public Sub InsertRow(db2ConnectionString As String)
      ' If the connection string is empty, use default.
      If db2ConnectionString = "" Then
        db2ConnectionString = _
            "user id=db2admin;server=db2;database=SAMPLE;"
      End If
      Dim myConn As New DB2Connection(db2ConnectionString)
      Dim myInsertQuery As String = "INSERT INTO DEPT VALUES (50,'Development','Philadelphia')"
      Dim db2Command As New DB2Command(myInsertQuery)
      db2Command.Connection = myConn
      myConn.Open()
      Try
        db2Command.ExecuteNonQuery()
      Finally
        myConn.Close()
      End Try
    End Sub
    Inheritance Hierarchy

    System.Object
       System.MarshalByRefObject
          System.ComponentModel.Component
             System.Data.Common.DbConnection
                Devart.Common.DbConnectionBase
                   Devart.Data.DB2.DB2Connection

    Requirements

    Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

    See Also