Clear Method (SelectStatement)

On this page

Clears all parts of the SelectStatement.

Syntax

Visual Basic
C#


'Declaration Public Overridable Sub Clear()


public virtual void Clear()

Remarks

Call Clear to empty all properties of the SelectStatement object.

Example

The following example demonstrates how to use the Clear method.

csharp


private void RefreshStatement(UniSelectStatement 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 void RefreshStatement(UniSelectStatement 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();
}

Visual Basic


Private Sub RefreshStatement(ByVal stmt As UniSelectStatement) 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

Private Sub RefreshStatement(ByVal stmt As UniSelectStatement)
  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

Reference

SelectStatement Class
SelectStatement Members

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