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ID AGE
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2 19
3 19
4 21
5 22
6 27
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ID AGE
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4 select id,age,
5 dense_rank() over(order by age) dr
6 from t1
7 )
8 where dr=3;
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4 21
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×÷Õß: wxy0327(http://wxy0327.itpub.net)
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Oracle
³ö´¦: http://wxy0327.itpub.net/post/16888/88075
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for(var y=2009;y<=2010;y++){
for(var m=1;m<=12;m++){
// todo : SQL ²éѯ
}
}
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