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求问这段代码到底是啥意思？
1 public class KeyManager 2 { 3 private static string storebase; 4 5 static KeyManager() 6 { 7 store
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3
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50
SQL语句性能优化,求大神指点
DECLARE @topCount INT SET @topCount = 10 select top (@topCount) * from (SELECT * From (SELECT * FROM
