But this will seriously affect the efficiency of the procedure, tested, OLEDB default mode when the amount of data in efficient way than the ODBC driver about 2.5 times higher efficiency.

• 但这样做将严重影响本程序的效率，经测试，默认的OLEDB方式在大数据量时效率要比ODBC驱动方式效率高2.；5倍左右。