cross apply 实现取分组前几条数据

CREATE TABLE #T (ID VARCHAR(3),
GID INT,
Author VARCHAR(29),
Title VARCHAR(39),
Date DATETIME);
INSERT INTO #T?
SELECT '001',1,'邹建','深入浅出SQLServer2005开发管理与应用实例','2008-05-10'
UNION ALL?
SELECT '002','胡百敬','SQLServer2005性能调校','2008-03-22'
UNION ALL?
SELECT '003','格罗夫Groff.J.R.','SQL完全手册','2009-07-01'
UNION ALL
SELECT '004','KalenDelaney','SQLServer2005技术内幕存储引擎','2008-08-01'
UNION ALL?
SELECT '005',2,'Alex.Kriegel.Boris.M.Trukhnov','SQL宝典','2007-10-05'
UNION ALL?
SELECT '006','飞思科技产品研发中心','SQLServer2000高级管理与开发','2007-09-10'
UNION ALL?
SELECT '007','SQLServer2005数据库开发详解','2008-06-15'
UNION ALL?
SELECT '008',3,'陈浩奎','SQLServer2000存储过程与XML编程','2005-09-01'
UNION ALL?
SELECT '009','赵松涛','SQLServer2005系统管理实录','2008-10-01'
UNION ALL?
SELECT '010','黄占涛','SQL技术手册','2006-01-01'
UNION ALL?
SELECT '010',4,'黄蛋蛋','SQL技术手册蛋蛋','2006-01-01' ;

SELECT DISTINCT b.*? FROM #T AS a? CROSS APPLY? (???? ?SELECT TOP(2) * FROM #T WHERE a.GID=GID ORDER BY Date DESC? ) AS b? ?

（编辑：李大同）

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