我已经在oracle中创建了存储过程。但是我想在mysql中运行这个过程,如何在mysql中创建for循环,.I对mysql中的for循环一无所知。assign_roll_no V_roll_no number; For c1 in (select distinct batch from student order by 1) For c2 in ( select id from batch where batch_roll_no is n
我试图使用以下语法在mysql中使用简单循环,使用Heidisql。BEGIN IF @number_title > @max THEN**LEAVE loop_label;**select @number_title as number_distinct_title,countctitle)=@number_title
ORDER BY customer_id) as
我希望我的mysql服务器删除数据库中的所有视图。我为存储过程创建了一个事件:DECLARE done INT DEFAULT FALSE; DECLARE VIEW_NAMES CURSOR: LOOP IF done THEN END IF;DROP VIEW VIEW_NAME;
END LOOP
phpMyAdmin告诉我,下面的代码片段在语法上是不正确的: SET @timeset :=0;
THEN SET @time := DATE_ADD(@time,INTERVAL 10 SECOND); SET @timeset := 1; 但我看不出是怎么回事。更新:多亏了沃尔夫冈的回答,我找到了以下解决办法:
SET @
我编辑了这个问题,因为下面的答案提到,当使用while和begin时,它应该在存储过程中。counter = counter+1var1var3var5
var1var3var5MySQLsaid: #1064 -You have an error in your SQL syntax; check the manual that corresponds to your