摘要：
SELECT TOP (500) ID, Personname, Personcode, Telphone, Fractioninto temp3FROM Records AS aWHERE (LEN(Personcode) = 18 OR LEN(Personcode) = 15) AND (NOT EXISTS (SELECT 1 AS Expr1 FROM Records WHERE (Personname = a.Personname) AND (Fraction > a.Fraction) OR ... 阅读全文
