Lỗi xảy ra khi đếm sql

Arithmetic overflow error converting expression to data type int.

The Explanation:  The upper bounds of an int is a little over two billion: 2,147,483,647.  The count() function always returns an int.
The Solution: Use count_big() instead, as it always returns a bigint data type, which has an upper bound of 9,223,372,036,854,775,807.  “select count_big(1) from MY_HUGE_TBL”