mysql 存储过程：提供查询语句并返回查询执行影响的行数

mysql 存储过程：提供查询语句并返回查询执行影响的行数
DELIMITER $$
DROP PROCEDURE IF EXISTS `p_get_select_row_number`$$
CREATE
PROCEDURE `test_cases`.`p_get_select_row_number`(IN p_select_sql VARCHAR(500), OUT p_count INT(8) )
BEGIN
-- 声明
DECLARE cnt INT DEFAULT 0;
DECLARE stmt VARCHAR(200);

-- 赋值
SET @stmt = CONCAT(p_select_sql);
-- prepare
PREPARE s1 FROM @stmt;
-- 执行
EXECUTE s1;
-- 获取查询影响的行数
SET @cnt = FOUND_ROWS();
-- 输出影响函数
SELECT @cnt INTO p_count ;

END$$

DELIMITER ;

CALL p_get_select_row_number('select * from report', @qqq);
SELECT @qqq;

执行结果

8 rows in set (0.00 sec)

Query OK, 1 row affected (0.05 sec)

mysql> SELECT @qqq;
+------+
| @qqq |
+------+
| 8 |
+------+
1 row in set (0.00 sec)