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Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
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371
psql's inline help:
\h ALTER TABLE
Also documented in the postgres docs (an excellent resou...
How can I make a JUnit Test wait?
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edited Jul 29 '13 at 2:11
answered Apr 10 '13 at 23:54
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How do I get the current absolute URL in Ruby on Rails?
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33 Answers
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When should I use Lazy?
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James Michael HareJames Michael Hare
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What's a good (free) visual merge tool for Git? (on windows) [closed]
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73
On Windows, a good 3-way diff/merge tool remains kdiff3 (WinMerge, for now, is still 2-way based...
How to hash a password
...e use the recommendations from the https://stackoverflow.com/a/10402129/251311 instead.
You can either use
var md5 = new MD5CryptoServiceProvider();
var md5data = md5.ComputeHash(data);
or
var sha1 = new SHA1CryptoServiceProvider();
var sha1data = sha1.ComputeHash(data);
To get data as byte a...
How do you get an iPhone's device name
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Pang
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answered Jul 8 '09 at 19:41
Frank VFrank V
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Printing Python version in output
...platform
print(platform.python_version())
This prints something like
3.7.2
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What is the pythonic way to unpack tuples? [duplicate]
...oo. Here's another example (from the Python tutorial):
>>> range(3, 6) # normal call with separate arguments
[3, 4, 5]
>>> args = [3, 6]
>>> range(*args) # call with arguments unpacked from a list
[3, 4, 5]
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How to add List to a List in asp.net [duplicate]
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edited Aug 21 '13 at 16:57
Bidou
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answe...