mysql存储过程示例

最新推荐文章于 2025-09-11 20:53:34 发布

转载最新推荐文章于 2025-09-11 20:53:34 发布 · 56 阅读

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原文链接：https://my.oschina.net/zhangmaoyuan/blog/1840884

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#数据库 #python

2019独角兽企业重金招聘Python工程师标准>>>

create procedure my_procedure()
begin 
declare tab_name varchar(50);  
declare tab_comment varchar(50);
DECLARE done INT DEFAULT FALSE; 
  
DECLARE My_Cursor CURSOR FOR (select table_name,table_comment from tables where table_schema = 'yysqzj');
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;  
  
OPEN My_Cursor;
  myLoop: LOOP  
    FETCH My_Cursor into tab_name,tab_comment;
    IF done THEN 
      LEAVE myLoop;  
    END IF;    
    SET @STMT :=CONCAT("select concat(",tab_comment,",'：',count(*)) from ",tab_name);   
       
    PREPARE STMT FROM @STMT;   
    EXECUTE STMT;   
  END LOOP myLoop; 
  CLOSE My_Cursor; 
END;

转载于:https://my.oschina.net/zhangmaoyuan/blog/1840884