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  • Mysql创建视图,生成存储过程

    -- 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
    

      

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  • 原文地址:https://www.cnblogs.com/leonardchen/p/6644286.html
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