建表語句

create table `t_user` (
    `id` bigint (50),
    `user_name` varchar (60),
    `pass_word` varchar (60)
); 
insert into `t_user` (`id`, `user_name`, `pass_word`) values(‘1‘,‘張三‘,‘abcdef‘);
insert into `t_user` (`id`, `user_name`, `pass_word`) values(‘2‘,‘李四‘,‘654321‘);

create table
 
 `t_login` (
    `id` bigint (20),
    `uid` bigint (20),
    `login_time` datetime 
); 
insert into `t_login` (`id`, `uid`, `login_time`) values(‘1‘,‘1‘,‘2019-03-15 15:03:41‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘2‘,‘1‘,‘2019-03-11 15:03:44‘);
insert into `t_login` (`id`, `uid`, `login_time`) values
 
(‘3‘,‘2‘,‘2019-03-12 15:03:47‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘4‘,‘2‘,‘2019-03-10 15:03:48‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘5‘,‘2‘,‘2019-03-16 15:03:50‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘6‘,‘1‘,‘2019-03-13 17:38:17‘);
insert into
 
 `t_login` (`id`, `uid`, `login_time`) values(‘7‘,‘1‘,‘2019-03-13 17:47:38‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘8‘,‘1‘,‘2019-03-13 17:48:58‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘9‘,‘1‘,‘2019-03-13 17:48:59‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘10‘,‘1‘,‘2019-03-13 17:49:06‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘11‘,‘1‘,‘2019-03-13 17:53:32‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘12‘,‘1‘,‘2019-03-13 17:56:52‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘13‘,‘1‘,‘2019-03-13 17:57:08‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘14‘,‘1‘,‘2019-03-14 12:55:02‘);
insert into `t_login` (`id`, `uid`, `login_time`) values(‘15‘,‘1‘,‘2019-03-14 12:56:38‘);

存儲過程

DELIMITER $$

USE `demo`$$

DROP PROCEDURE IF EXISTS `student_03`$$

CREATE DEFINER=`root`@`%` PROCEDURE `student_03`(IN sn VARCHAR(20),IN sc VARCHAR(20),OUT st INT)
BEGIN
DECLARE state INT DEFAULT 0; 
        /*驗證賬號密碼是否存在記錄>0 into賦值給 state 需要提前定義state參數*/
     SELECT COUNT(1) INTO state FROM student WHERE sname = sn AND SCLASS =sc;
     /*if else 判斷*/
     IF state > 0 THEN
     /*存在記錄登錄成功添加登錄記錄 userid 和 時間*/
     INSERT INTO t_login (uid,login_time) VALUES(1,NOW());
     /*查詢記錄id賦值st 返回 ,SET st = (SELECT LAST_INSERT_ID())效果一樣使用set賦值*/
      SELECT LAST_INSERT_ID() INTO st;
     ELSE
     /*<0 返回0*/
    SET st=0;
    END IF;
    END$$

DELIMITER ;

執行結果:

mysql存儲過程 驗證登錄,添加登錄記錄主鍵id