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SQL - using alias in Group By
...ause
HAVING clause
SELECT clause
ORDER BY clause
For most relational database systems, this order explains which names (columns or aliases) are valid because they must have been introduced in a previous step.
So in Oracle and SQL Server, you cannot use a term in the GROUP BY clause that you defin...
HTTP Error 500.19 and error code : 0x80070021
...nd prompt as an administrator, and change directory to your .net framework base folder using:
CD C:\Windows\Microsoft.NET\Framework\v4.0.30319
or, if you're using a 64 bit computer, use:
CD C:\Windows\Microsoft.NET\Framework64\v4.0.30319
when you've successfully navigated to the appropriate di...
When to use UICollectionView instead of UITableView?
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its all based on main requirement. Collection view introduce late and till then all dev use table to make grid and that kind of stuff. but now a days collectionview is most populor to use for making layout like tableview. as well so ...
MySQL “WITH” clause
...ommon table expressions:
Oracle 9i release 2 and later:
http://www.oracle-base.com/articles/misc/with-clause.php
Microsoft SQL Server 2005 and later:
http://msdn.microsoft.com/en-us/library/ms190766(v=sql.90).aspx
IBM DB2 UDB 8 and later:
http://publib.boulder.ibm.com/infocenter/db2luw/v8/index.jsp...
How can I request the vibrate permission?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How do I prevent 'git diff' from using a pager?
... with that behaviour. So, I use the following to enable conditional paging based on the amount of content:
git config --global --replace-all core.pager "less -F -X"
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How to sort a Ruby Hash by number value?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How do I suspend painting for a control and its children?
... This isn't particularly useful. This is exactly what the Control base class for all of the WinForms controls already does for the BeginUpdate and EndUpdate methods. Sending the message yourself is no better than using those methods to do the heavy lifting for you, and certainly can't produ...
Making text background transparent but not text itself
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Efficient evaluation of a function at every cell of a NumPy array
... like for ind in range(arr.size), use numpy.unravel_index to get i, j, .. based on your 1D index and shape of array numpy.unravel_index
This answers is inspired by my answer on other question here
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