时间:2021-07-01 10:21:17 帮助过:25人阅读
- -- select * from (SELECT nid from part where nid > 2) as A
- -- create view V1 AS
- -- create view V1 AS #创建视图
- -- select man_to_woman.nid,man.name as mname,woman.name as wname from man_to_woman
- -- LEFT JOIN man ON man_to_woman.man_id = man.nid
- -- LEFT JOIN woman on man_to_woman.woman_id = woman.nid
- -- where man.name = ‘duyanqi‘
- delimiter \\ #声明以\\为语句结束符(默认;分号结束)
- drop PROCEDURE if EXISTS proc_p1 \CREATE PROCEDURE proc_p1(in i1 INT)#生成存储过程,获取一个变量i1
- BEGIN
- -- SELECT * FROM man;
- DECLARE d1 int;#声明变量
- DECLARE d2 int DEFAULT 3;
- set d1 = i1 + d2;
- SELECT * FROM man_to_woman WHERE nid > d1;
- END \delimiter ;#将默认的;更改回来
- call proc_p1(1);#调用存储过程
- #drop procedure proc_p1;#删除存储过程
Mysql创建视图,生成存储过程
标签:存储过程 art 变量 div rom procedure 更改 -- 结束