存储过程-入门案例

一、数据准备

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for users
-- ----------------------------
DROP TABLE IF EXISTS `users`;
CREATE TABLE `users`  (
  `id` int(10) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `user_name` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '用户名',
  `sex` varchar(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '性别',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 5 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic;

SET FOREIGN_KEY_CHECKS = 1;

INSERT INTO `users`(`id`, `user_name`, `sex`) VALUES (1, '张学友', '男');
INSERT INTO `users`(`id`, `user_name`, `sex`) VALUES (2, '迪丽热巴', '女');
INSERT INTO `users`(`id`, `user_name`, `sex`) VALUES (3, '周杰伦', '男');
INSERT INTO `users`(`id`, `user_name`, `sex`) VALUES (4, '杨幂', '女');

 

二、格式

delimiter 自定义结束符号
create procedure 存储名([in,out,inout]参数名数据类型...)
begin
   sql语句
end 自定义结束符号
delimiter ;

 

三、案例

DROP PROCEDURE IF EXISTS proc1;

delimiter $$
create procedure proc1()
begin
   SELECT * from users;
end $$ 
delimiter ;


call proc1();