Mysql 循环插入数据

CREATE TABLE test_t(

role_id INT ,

menu_id INT ,

company_id INT

)

第一种：

INSERT INTO test_t(role_id,menu_id,company_id) SELECT 1000,id,1 FROM test WHERE product_id IS NULL

第二种：

DELIMITER //

CREATE PROCEDURE proc()

BEGIN

DECLARE role INT;

DECLARE menu INT;

DECLARE company INT;

DECLARE done INT DEFAULT FALSE;

DECLARE cur CURSOR FOR

SELECT 1,id,1 FROM test WHERE product_id IS NULL;

-- 将结束标志绑定到游标

DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;

OPEN cur;

read_loop: LOOP

FETCH cur INTO role,menu,company;

IF done THEN

LEAVE read_loop;

END IF;

INSERT INTO test_t(role_id,menu_id,company_id) VALUES(role,menu,company);

END LOOP;

-- 关闭游标

CLOSE cur;

END //

CALL proc()