mysql存储过程

/*
SQLyog Ultimate v12.3.2 (64 bit)
MySQL - 5.5.13 : Database - test
*********************************************************************
*/


/*!40101 SET NAMES utf8 */;

/*!40101 SET SQL_MODE=''*/;

/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
CREATE DATABASE /*!32312 IF NOT EXISTS*/`test` /*!40100 DEFAULT CHARACTER SET utf8 */;

USE `test`;

/*Table structure for table `depart` */

DROP TABLE IF EXISTS `depart`;

CREATE TABLE `depart` (
  `did` char(1) NOT NULL,
  `dname` varchar(20) DEFAULT NULL,
  `dmaster` char(3) DEFAULT NULL,
  `droom` char(10) DEFAULT NULL,
  PRIMARY KEY (`did`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

/*Data for the table `depart` */

insert  into `depart`(`did`,`dname`,`dmaster`,`droom`) values 

('1','财务部','003','2201'),

('2','人事处','005','2209'),

('3','市场部','009','3201'),

('4','开发部','001','3206'),

('5','科研部','002','4201'),

('6','宣传部','004','4202'),

('7','工会','006','4203');

/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;


-- 带输出参数的存储过程
DELIMITER $$
#DROP PROCEDURE IF EXISTS  test_sp3
 CREATE PROCEDURE test_sp3(IN id CHAR(1),IN dn VARCHAR(20),IN dm CHAR(3),IN dr CHAR(10),OUT err INT)  
    BEGIN  
    DECLARE t_error INTEGER DEFAULT 0;  -- 设置一个事务标识位
    DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SET t_error=1;  -- 声明一个sql异常,当触发这个异常时，把标识位置为1
  
        START TRANSACTION;  
            INSERT INTO depart VALUES(id,dn,dm,dr);
        IF t_error = 1 THEN  -- 标识位为1,事务回滚
            ROLLBACK;  
        ELSE    -- 为0提交事务
            COMMIT;  
        END IF;  
    SET err=t_error; -- 返回标识位的结果集;(1.代表回滚 0.代表提交)
 END$$
DELIMITER ;

CALL test_sp3('4','开发部','001','3206',@m);
SELECT @m;