sql如下：
select case when
(select count(*) from A j where j.GS_ID ='1201' and j.JHDDD_PSFANGSHI = '1') <> 0 then (select c
阅读背景：
请教个sql 问题！ 在sql中做除法时，判断除数为零，想在一条语句中实现！
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sql如下：
select case when
(select count(*) from A j where j.GS_ID ='1201' and j.JHDDD_PSFANGSHI = '1') <> 0 then (select c
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