Returns the number of rows affected by the last statement executed. This function operates like @@ROWCOUNT, except the return type of ROWCOUNT_BIG is bigint.
Following a SELECT statement, this function returns the number of rows returned by the SELECT statement.
Following an INSERT, UPDATE, or DELETE statement, this function returns the number of rows affected by the data modification statement.
Following statements that do not return rows, such as an IF statement, this function returns 0.