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1052: Column 'id' in field list is ambiguous
... JOIN tbl_section
See also: https://dev.mysql.com/doc/refman/5.7/en/join.html
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Where to put Gradle configuration (i.e. credentials) that should not be committed?
...d.
See also:
https://docs.gradle.org/current/userguide/build_environment.html
and
https://docs.gradle.org/current/userguide/dependency_management.html (23.6.4.1)
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pytest: assert almost equal
...s
The documentation is here: https://docs.pytest.org/en/latest/reference.html#pytest-approx
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Any open source alternatives to balsamiq mockup [closed]
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Take a look at Maqetta. It runs as a html5 app in your browser, so you can deploy it on your server to easily share your work with others, or you can simply start it locally and point your browser to localhost on port 50000.
On their homepage, you can test maqe...
Android代码优化小技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...建议
原文: http://developer.android.com/training/articles/perf-tips.html
原翻译地址：http://hukai.me/android-training-course-in-chinese/performance/performance-tips.html
通常来说，高效的代码需要满足下面两个规则：
不要做冗余的动作
如果能避免，尽量...
Java heap terminology: young, old and permanent generations?
... http://www.oracle.com/webfolder/technetwork/tutorials/obe/java/gc01/index.html
"The General Garbage Collection Process" in above article explains the interactions between them with many diagrams.
Have a look at summary diagram:
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Disabled href tag
...sabled {
pointer-events: none;
cursor: default;
}
<a href="link.html" class="disabled">Link</a>
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Selecting a row of pandas series/dataframe by integer index
...the new docs in 0.11
http://pandas.pydata.org/pandas-docs/stable/indexing.html
Here we have new operators, .iloc to explicity support only integer indexing, and .loc to explicity support only label indexing
e.g. imagine this scenario
In [1]: df = pd.DataFrame(np.random.rand(5,2),index=range(0,10...
What is the meaning of “POSIX”?
... is Posix compliant, see devworld.apple.com/leopard/overview/osfoundations.html . For Windows, see en.wikipedia.org/wiki/POSIX#POSIX_for_Windows : Posix compliance is currently included in Enterprise and Ultimate editions only (not in the cheaper ones!-), though you can get partways w/Cygwin, en.wik...
How to programmatically cause a core dump in C/C++
...race() and backtrace_symbols() functions:
http://www.gnu.org/s/libc/manual/html_node/Backtraces.html
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