看看emptytable的帮助说的很清楚
The following example uses a table component to empty a database table. First the properties of the table component are set to specify the table that should be emptied.
with Table1 do
begin
Active := False;
DatabaseName := 'Delphi_Demos';
TableName := 'CustInfo';
TableType := ttParadox;
EmptyTable;