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Difference between timestamps with/without time zone in PostgreSQL
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csv.Error: iterator should return strings, not bytes
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Lennart RegebroLennart Regebro
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在vc中使用xtremetoolkit界面库-----安装及环境配置 - C/C++ - 清泛网 - 专...
...当然是配置发开环境了：
我使用的是vc6.0+xtremetoolkitPro15.3.1
以下链接是xtremetoolkitPro15.3.1免费下载地址：（其中还包含了注册机，解压Crack文件下的Keygen.zip就可以得到），
http://pan.baidu.com/s/1pJvfy0F
我因为之前安装的是一个绿色...
Redirect using AngularJS
...omal Fernandes
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How to get a complete list of object's methods and attributes?
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Jonathan Drake
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answered Oct 10 '08 at 12:25
PierreBdRPierreBdR
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What does it mean when git says a file “needs update”?
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answered Apr 18 '10 at 3:17
Michael MrozekMichael Mrozek
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How to add multiple columns to a table in Postgres?
...o I add multiple columns in one query statement in PostgreSQL using pgadmin3?
2 Answers
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MySQL/SQL: Group by date only on a Datetime column
...GROUP BY DATE(a_table.mydate);
Or you can GROUP BY the alias as @orlandu63 suggested:
SELECT SUM(foo), DATE(mydate) DateOnly FROM a_table GROUP BY DateOnly;
Though I don't think it'll make any difference to performance, it is a little clearer.
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64-bit version of Boost for 64-bit windows
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As a longer answer, here are my build notes for having VS .NET 2008 32-bit and 64-bit boost libraries in the same hierarchy (which is I suspect a common use case):
Build the win32 binaries
bjam --toolset=msvc-9.0 --build-type=complete stage
Create the directory lib\win32
Move the contents...
Python non-greedy regexes
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wjandrea
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answered Apr 19 '09 at 23:27
Trey StoutTrey Stou...