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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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pytest: assert almost equal
...s
The documentation is here: https://docs.pytest.org/en/latest/reference.html#pytest-approx
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How to run SQL script in MySQL?
...ore info here: http://dev.mysql.com/doc/refman/5.0/en/mysql-batch-commands.html
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HTTP requests and JSON parsing in Python
...'legs']:
for step in leg['steps']:
print step['html_instructions']
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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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CMake使用教程 - C/C++ - 清泛网 - 专注C/C++及内核技术
...装cmake。
下载地址：http://www.cmake.org/cmake/resources/software.html
根据自己的需要下载相应的包即可，Windows下可以下载zip压缩的绿色版本，还可以下载源代码。
（2）运行cmake的方法。（GUI、命令行）
http://www.cmake.org/cmake/help/running...
Parse query string into an array
...to an array because of encoded ampersands
&
then be sure to use html_entity_decode
Example:
// Input string //
$input = 'pg_id=2&parent_id=2&document&video';
// Parse //
parse_str(html_entity_decode($input), $out);
// Output of $out //
array(
'pg_id' =&g...
Add a CSS class to
...efault' %> <-- Note: there is no comma!
If you are altering a _form.html.erb partial of a scaffold and you want to keep
the dynamic change of the button name between controller actions, DO NOT specify a name 'name'.
Without specifying a name and depending on the action the form is rendered t...
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...
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...