UpdateCommand Property (DB2DataAdapter)
Gets or sets a DB2 statement used to update records in the data source.
'Declaration
Public Shadows Property UpdateCommand As DB2Command
Property Value
A
DB2Command used during an update operation to update records in the data source that correspond to modified rows in the
System.Data.DataSet.
The following example demonstrates how to retrieve and manipulate data using
DB2DataAdapter.
public void UseDataAdapter(DB2Connection db2Connection)
{
DB2DataAdapter myAdapter = new DB2DataAdapter("SELECT DeptNo, DName FROM Dept", db2Connection);
myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
DataSet myDataSet = new DataSet();
myAdapter.Fill(myDataSet,"Departments");
myDataSet.Tables["Departments"].Rows[3]["DName"] = "Researches";
myAdapter.UpdateCommand = new DB2Command("UPDATE Dept SET DeptNo = :DeptNo, DName = :DName " +
"WHERE DeptNo = :oldDeptNo", db2Connection);
myAdapter.UpdateCommand.Parameters.Add("DeptNo", DB2Type.Int, 0, "DeptNo");
myAdapter.UpdateCommand.Parameters.Add("DName", DB2Type.VarChar, 15, "DName");
myAdapter.UpdateCommand.Parameters.Add("oldDeptNo", DB2Type.Int, 0, "DeptNo").SourceVersion = DataRowVersion.Original;
myAdapter.Update(myDataSet,"Departments");
//Get all data from all tables within the dataset
foreach(DataTable myTable in myDataSet.Tables)
{
foreach(DataRow myRow in myTable.Rows)
{
foreach (DataColumn myColumn in myTable.Columns)
{
Console.Write(myRow[myColumn]+"\t");
}
Console.WriteLine();
}
Console.WriteLine();
}
}
Public Sub UseDataAdapter(ByVal db2Connection As DB2Connection)
Dim myAdapter As DB2DataAdapter = New DB2DataAdapter("SELECT DeptNo, DName FROM Dept", db2Connection)
myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey
Dim myDataSet As DataSet = New DataSet
myAdapter.Fill(myDataSet, "Departments")
myDataSet.Tables("Departments").Rows(3)("DName") = "Researches"
myAdapter.UpdateCommand = New DB2Command("UPDATE Dept SET DeptNo = :DeptNo, DName = :DName " & _
"WHERE DeptNo = :oldDeptNo", db2Connection)
myAdapter.UpdateCommand.Parameters.Add("DeptNo", DB2Type.Int, 0, "DeptNo")
myAdapter.UpdateCommand.Parameters.Add("DName", DB2Type.VarChar, 15, "DName")
myAdapter.UpdateCommand.Parameters.Add("oldDeptNo", DB2Type.Int, 0, "DeptNo").SourceVersion = DataRowVersion.Original
myAdapter.Update(myDataSet, "Departments")
Dim myTable As DataTable
Dim myRow As DataRow
Dim myColumn As DataColumn
' Get all data from all tables within the dataset
For Each myTable In myDataSet.Tables
For Each myRow In myTable.Rows
For Each myColumn In myTable.Columns
Console.Write(myRow(myColumn) & Chr(9))
Next myColumn
Console.WriteLine()
Next myRow
Console.WriteLine()
Next myTable
End Sub
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