select len(qybh),casewhen len(qybh)=1 then 1 when len(qybh)=5 then 5 else 0 endfrom Company
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select len(qybh),casewhen len(qybh)=1 then 1 when len(qybh)=5 then 5 else 0 endfrom Company
转载于:https://www.cnblogs.com/binmail2012/archive/2012/12/06/2804714.html