1
whtsky 2012-02-10 15:47:35 +08:00 via Android
learn sql the hard way?
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2
loading 2012-02-10 15:53:14 +08:00
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3
loading 2012-02-10 15:54:53 +08:00
http://sqlzoo.cn/
重点还是动手,动脑 |
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4
omax 2012-02-10 16:05:10 +08:00
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