Copies current tables by the specified path.
procedure Backup;
Call the Backup method to copy current tables by the specified path (see Path property).
A list of tables is specified in the TableNames property. If the list isn't specified, all tables will be copied.
Use the Mode property to specify a copy mode.
If Mode is bmBinary before backup copying of table files, tables are TCustomMyDataSet.LockTable on writing and TMyServerControl.Flush is called.