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mysql query order by multiple items
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SELECT some_cols
FROM prefix_users
WHERE (some conditions)
ORDER BY pic_set DESC, last_activity;
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Force drop mysql bypassing foreign key constraint
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If you are using phpmyadmin then this feature is already there.
Select the tables you want to drop
From the dropdown at the bottom of tables list, select drop
A new page will be opened having checkbox at the bottom saying
"Foreign key check", uncheck it.
Confirm the deletion by accepting ...
Why does Azure deployment take so long?
I'm trying to understand why it can take from 20-60min to deploy a small application to Azure (using the configuration/package upload method, not from within VS).
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Why does “_” (underscore) match “-” (hyphen)?
...u want to use the underscore in like as a literal, you have to escape it:
select * from a where name like '%taz\_manual%.pdf%';
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Suppress warning CS1998: This async method lacks 'await'
...the classes that implements the interface does not have anything to await, and some might just throw. It's a bit annoying with all the warnings.
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How do I configure PyCharm to run py.test tests?
...s the default, when I right-click on the project in the Projects panel and select New => Python File, the Kind: dropdown offers only: Python file, Unit test, Python stub, not Pytest. I have looked in all of the locations mentioned in the threads above. What am I missing?
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How to do error logging in CodeIgniter (PHP)
...here any security implications for this?
– Aakil Fernandes
Aug 12 '14 at 1:51
This dumps data to a php file whose file...
MongoDB vs. Cassandra [closed]
...e hot data set fits in memory. Both also emphasize join-less data models (and encourage denormalization instead), and both provide indexes on documents or rows, although MongoDB's indexes are currently more flexible.
Cassandra's storage engine provides constant-time writes no matter how big your d...
How to set RelativeLayout layout params in code not in xml?
...swered Mar 4 '11 at 8:01
Rohit MandiwalRohit Mandiwal
9,16244 gold badges5757 silver badges7575 bronze badges
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How can I sort arrays and data in PHP?
... $array[$j] = $tem;
}
}
}
return $array;
}
Selection sort
From the Wikipedia article on Selection sort:
In computer science, selection sort is a sorting algorithm, specifically an in-place comparison sort. It has O(n2) time complexity, making it inefficient on la...