一个存储过程怎么也改不好,求围观
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SQL code
mysql> DELIMITER // mysql> CREATE PROCEDURE updataAlarmID() -> BEGIN -> set @i=0; -> set @sqlcot="select count(overinfo.rule) into @rlenght from overinfo,inid ate where overinfo.classID=inidate.classID and inidate.alarmID is null"; -> PREPARE prod FROM @sqlcot; -> EXECUTE prod; -> -> set @sqlRule1="select overinfo.rule into @ruleWord from overinfo,inidate where overinfo.classID=inidate.classID and inidate.alarmID is null limit "; -> set @sqlin1="update inidate,overinfo set inidate.alarmID=overinfo.alarmID where inidate.content "; -> set @sqlin2=" and inidate.classID=overinfo.classID and ov erinfo.rule= "; -> -> while @i<@rlenght do -> set @sqlRule=concat(@sqlRule1,@i,",1"); -> PREPARE proRule FROM @sqlRule; -> EXECUTE proRule; -> @sqlIn=concat(@sqlin1,@ruleWord,@sqlin2,@ruleWord); -> PREPARE proIn FROM @sqlIn; -> EXECUTE proIn; -> set @i=@i+1; -> end while; -> -> END -> // ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '@sqlI n=concat(@sqlin1,@ruleWord,@sqlin2,@ruleWord); PREPARE proIn FROM ' at line 14
写了一个存储过程 ,这个报错error是和“@”使用有关吗,谁能帮我看看?
好像是不能加@,但是我把@全去掉,还是报错,说未知系统函数i
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SQL code
ERROR 1193 (HY000): Unknown system variable 'i'
这个也贴上,我纯新手,实在想不通了,大家帮忙下,谢谢。
set @sqlcot=”select count(overinfo.rule) into @rlenght from overinfo,inid
ate where overinfo.classID=inidate.classID and inidate.alarmID is null”;
PREPARE prod FROM @sqlcot;
EXECUTE prod;
这个也不需要这样吧,直接 select count(overinfo.rule) into rlengh_int from overinfo,inid
ate where overinfo.classID=inidate.classID and inidate.alarmID is null;
就可以了
-> set @sqlRule=concat(@sqlRule1,@i,”,1″);
-> PREPARE proRule FROM @sqlRule;
-> EXECUTE proRule;
-> @sqlIn=concat(@sqlin1,@ruleWord,@sqlin2,@ruleWord);
你前面还知道要用 set ,后面为什么就没了?