【MySQL】批量数据循环插入

双重循环插入

DELIMITER ;;
CREATE PROCEDURE test_insert()

BEGIN
DECLARE a INT DEFAULT 1;
DECLARE b TINYINT DEFAULT 1;
WHILE (a <= 100) DO
-- repeat 

SET a = a + 1;
-- select a;
WHILE (b <=20) DO
insert into school_sp_mj(school_id,mojor_id,status) values(a,b,1);
SET b = b + 1;
-- select b;
END WHILE; 

SET b = 1;
-- select a;
-- until a >= i_PlayerCount
-- end repeat;
END WHILE;
commit;
END;;
CALL test_insert();

单循环插入

DELIMITER ;;
CREATE PROCEDURE test_insert()
BEGIN
DECLARE y TINYINT DEFAULT 1;
WHILE y<20
DO
insert into school_sp_mj(school_id,mojor_id,status) values(1,y,1);
SET y=y+1;
END WHILE ;
commit;
END;;
CALL test_insert();