可用的函数还有LEN,CONVERT,IIF,TRIM,SUBSTRING,还有写聚合函数Sum (Sum),Avg (Average),Min (Minimum),Max (Maximum),Count (Count),StDev (Statistical standard deviation),Var (Statistical variance).甚至它还能引用关系表中的字段,真是厉害啊。
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转载于:https://www.cnblogs.com/stevenshen/archive/2006/12/30/608080.html