UpdateCommand Property (OracleDataAdapter)
Gets or sets an Oracle statement used to update records in the data source.
'Declaration
Public Shadows Property UpdateCommand As OracleCommand
Property Value
A
OracleCommand 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
OracleDataAdapter.
public void UseDataAdapter(OracleConnection myConnection)
{
OracleDataAdapter myAdapter = new OracleDataAdapter("SELECT DeptNo, DName FROM Test.Dept", myConnection);
myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
DataSet myDataSet = new DataSet();
myAdapter.Fill(myDataSet,"Departments");
myDataSet.Tables["Departments"].Rows[3]["DName"] = "Researches";
myAdapter.UpdateCommand = new OracleCommand("UPDATE Test.Dept SET DeptNo = :DeptNo, DName = :DName " +
"WHERE DeptNo = :oldDeptNo", myConnection);
myAdapter.UpdateCommand.Parameters.Add("DeptNo", OracleDbType.Integer, 0, "DeptNo");
myAdapter.UpdateCommand.Parameters.Add("DName", OracleDbType.VarChar, 15, "DName");
myAdapter.UpdateCommand.Parameters.Add("oldDeptNo", OracleDbType.Integer, 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 myConnection As OracleConnection)
Dim myAdapter As OracleDataAdapter = New OracleDataAdapter("SELECT DeptNo, DName FROM Test.Dept", myConnection)
myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey
Dim myDataSet As DataSet = New DataSet
myAdapter.Fill(myDataSet, "Departments")
myDataSet.Tables("Departments").Rows(3)("DName") = "Researches"
myAdapter.UpdateCommand = New OracleCommand("UPDATE Test.Dept SET DeptNo = :DeptNo, DName = :DName " & _
"WHERE DeptNo = :oldDeptNo", myConnection)
myAdapter.UpdateCommand.Parameters.Add("DeptNo", OracleDbType.Integer, 0, "DeptNo")
myAdapter.UpdateCommand.Parameters.Add("DName", OracleDbType.VarChar, 15, "DName")
myAdapter.UpdateCommand.Parameters.Add("oldDeptNo", OracleDbType.Integer, 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