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Devart.Data.Oracle Namespace / OracleSelectStatement Class / Clear Method
Example

Clear Method (OracleSelectStatement)
Clears all parts of the OracleSelectStatement.
Syntax
'Declaration
 
Public Overrides NotOverridable Sub Clear() 
 
Remarks
Call OracleSelectStatement to empty all properties of the OracleSelectStatement object.
Example
The following example demonstrates how to use the Clear method.
private void RefreshStatement(OracleSelectStatement stmt)
{
  stmt.Clear();
  stmt.Columns.Add(new SelectColumn("ENAME"));
  stmt.Columns.Add(new SelectColumn("", "emp", "JOB", "j"));
  stmt.Columns.Add(new SelectColumn("test", "", "emp", "HIREDATE", "hd"));

  stmt.Tables.Add(new SelectTable("emp"));

  //select ENAME,emp.JOB j,Test.emp.HIREDATE hd from emp
  string queryText = stmt.ToString();
}
Private Sub RefreshStatement(ByVal stmt As OracleSelectStatement)
  stmt.Clear()
  stmt.Columns.Add(New SelectColumn("ENAME"))
  stmt.Columns.Add(New SelectColumn("", "emp", "JOB", "j"))
  stmt.Columns.Add(New SelectColumn("test", "", "emp", "HIREDATE", "hd"))
  stmt.Tables.Add(New SelectTable("emp"))
  'select ENAME,emp.JOB j,Test.emp.HIREDATE hd from emp
  Dim queryText As String = stmt.ToString
End Sub
See Also