ID Name ReportDate
1 a 2014-05-10
2 a 2014-05-12
3 b 2014-02-15
4 b 2014-03-23
5 c 2014-05-20
如上数据 查询出
ID Name ReportDate
2 a 2014-05-12
4 b 2014-03-23
5 c 2014-05-20
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oracle 查询最新数据
ID Name ReportDate 1 a 2014-05-10 2 a 2014-05-12 3 b 2014-02-15 4 b 2014-03-23 5 c 2014-05-20 如上数据 查询出 ID Name ReportDate 2 a 2014-05-12 4 b 2014-03-23 5 c 2014-05-20