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How can I add a column that doesn't allow nulls in a Postgresql database?
...row. Not sure how Postgres locks up a table when doing this. Or, if column order matters, you can't just add a column with the ALTER command.
– alphadogg
Feb 5 '09 at 14:31
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What is the proper way to re-throw an exception in C#? [duplicate]
... ends on that statement and not at the real source of the exception.
Basically, it should be deemed a criminal offense to use "throw ex".
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How do I concatenate strings and variables in PowerShell?
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This isn't technically concatenation.
– TravisEz13
Jun 14 '16 at 17:59
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Why does the expression 0 < 0 == 0 return False in Python?
...o say 0 < x <= 5 than to say (0 < x) and (x <= 5).
These are called chained comparisons. And that's a link to the documentation for them.
With the other cases you talk about, the parenthesis force one relational operator to be applied before the other, and so they are no longer chained...
Download old version of package with NuGet
....Logging -Version 1.2.0
See the command reference for details.
Edit:
In order to list versions of a package you can use the Get-Package command with the remote argument and a filter:
Get-Package -ListAvailable -Filter Common.Logging -AllVersions
By pressing tab after the version option in the ...
What's the canonical way to check for type in Python?
...ation.
One more note: in this case, if you're using Python 2, you may actually want to use:
if isinstance(o, basestring):
because this will also catch Unicode strings (unicode is not a subclass of str; both str and unicode are subclasses of basestring). Note that basestring no longer exists in P...
Node.js get file extension
... Try 'filename.css.gz'.split('.').slice(1).join('.') to get all extensions
– Trevor
Jul 31 '17 at 21:53
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Is there any performance reason to declare method parameters final in Java?
...wever, i have no clue if this is done in practice, but it could be done in order to save some memory.
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Where is SQL Server Management Studio 2012?
... SQL Server 2008 R2 and Visual Studio 2008 and 2010 on my laptop. I've installed SQL Server 2012 and have finally got SQL Server Data Tools to show up, so that I can create SSRS reports in Visual Studio 2010.
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How can I disable a button on a jQuery UI dialog?
...ied about the id being unique. Though you will have to type a bit more in order to search for the button: $("#dialog").dialog("widget").find(".button-ok-class").button("enable")
– desm
Jul 30 '13 at 9:28
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