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How do you create a random string that's suitable for a session ID in PostgreSQL?
...session verification using PostgreSQL. I know I can get a random number with SELECT random() , so I tried SELECT md5(random()) , but that doesn't work. How can I do this?
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Is it safe to shallow clone with --depth 1, create commits, and pull updates again?
The --depth 1 option in git clone :
2 Answers
2
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Why #egg=foo when pip-installing from git repo
When I do a "pip install -e ..." to install from a git repo, I have to specify #egg=somename or pip complains. For example:
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Checking if a double (or float) is NaN in C++
Is there an isnan() function?
21 Answers
21
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How do I delete a fixed number of rows with sorting in PostgreSQL?
I'm trying to port some old MySQL queries to PostgreSQL, but I'm having trouble with this one:
6 Answers
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Finding the number of days between two dates
How to find number of days between two dates using PHP?
33 Answers
33
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How to ignore whitespace in a regular expression subject string?
Is there a simple way to ignore the white space in a target string when searching for matches using a regular expression pattern? For example, if my search is for "cats", I would want "c ats" or "ca ts" to match. I can't strip out the whitespace beforehand because I need to find the begin and en...
Stop Visual Studio from mixing line endings in files
When opening a text based file in Visual Studio 2010 it will then write my edits with CRLF instead of the line ending format of the original file. How can I stop VS from doing this? Any half decent editor should have this capability.
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subtle differences between JavaScript and Lua [closed]
I simply love JavaScript. It's so elegant (imagine the quiet sound of lovestruck fanboy sighing in the background).
8 Answe...
Regular expression to match DNS hostname or IP Address?
Does anyone have a regular expression handy that will match any legal DNS hostname or IP address?
21 Answers
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