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Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
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edited Aug 2 '17 at 10:42
a_horse_with_no_name
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Automatic counter in Ruby for each?
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edited Dec 4 '13 at 23:54
answered Feb 10 '09 at 19:57
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PowerShell equivalent to grep -f
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The -Pattern parameter in Select-String supports an array of patterns. So the one you're looking...
Find the similarity metric between two strings
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Inbar RoseInbar Rose
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rvm installation not working: “RVM is not a function”
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Why is pow(a, d, n) so much faster than a**d % n?
...Miller-Rabin primality test , and was puzzled why it was taking so long (> 20 seconds) for midsize numbers (~7 digits). I eventually found the following line of code to be the source of the problem:
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The name does not exist in the namespace error in XAML
Using VS2012 working on a VB.NET WPF application. I have a simple MusicPlayer tutorial app I am using to learn WPF. I am converting a C# version of the tutorial to VB.NET step by step.
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What is digest authentication?
...03 Forbidden (access denied).
Digest authentication is standardized in RFC2617. There's a nice overview of it on Wikipedia:
You can think of it like this:
Client makes request
Client gets back a nonce from the server and a 401 authentication request
Client sends back the following response arra...
Get table column names in MySQL?
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Alexis Wilke
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answered Oct 6 '09 at 16:36
GregGreg
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Unable to load Private Key. (PEM routines:PEM_read_bio:no start line:pem_lib.c:648:Expecting: ANY PR
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What if I'm using a mac?
– Ernest Zamelczyk
Sep 20 '19 at 10:17
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