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IN vs OR in the SQL WHERE Clause
...rding to the manual for MySQL if the values are constant IN sorts the list and then uses a binary search. I would imagine that OR evaluates them one by one in no particular order. So IN is faster in some circumstances.
The best way to know is to profile both on your database with your specific dat...
Can I make a pull request on a gist on GitHub?
...rrently open a pull request on a Gist.
You can comment though on the Gist and ask the author to update the Gist from your fork.
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Git: updating remote branch information
...r remote_name/branch_name
you only remove your local checkout. This command doesn't do anything to the remote repository, which is why it still shows up.
Solution:
git push origin :branch_name
will remove the the remote branch (note the ':'), and
git branch -d branch_name
will remove your ...
What does SQL clause “GROUP BY 1” mean?
...t_id.
You also can specify in ORDER BY.
Note : The number in ORDER BY and GROUP BY always start with 1 not with 0.
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SBT stop run without exiting
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with kill from the command line, or in the Task Manager (Windows), or Force Quit or Activity Monitor (Mac OS X), etc.
– Seth Tisue
Mar 21 '11 at 16:45
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Is it possible to implement dynamic getters/setters in JavaScript?
I am aware of how to create getters and setters for properties whose names one already knows, by doing something like this:
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Are table names in MySQL case sensitive?
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In general:
Database and table names are not case sensitive in Windows, and case sensitive in most varieties of Unix.
In MySQL, databases correspond to directories within the data
directory. Each table within a database corresponds to at le...
How do I convert a Java 8 IntStream to a List?
I'm looking at the docs for the IntStream , and I see an toArray method, but no way to go directly to a List<Integer>
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Find size of an array in Perl
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The first and third ways are the same: they evaluate an array in scalar context. I would consider this to be the standard way to get an array's size.
The second way actually returns the last index of the array, which is not (usually) ...
How to write LaTeX in IPython Notebook?
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Now is working on Jupiter. I put %%latex in a cell, and import the from IPython.display import Latex. After that, the Jupyter notebook recognizes Latex notation.
– Miguel Gutierrez
Jun 28 at 3:42
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