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How to change a PG column to NULLABLE TRUE?
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472
From the fine manual:
ALTER TABLE mytable ALTER COLUMN mycolumn DROP NOT NULL;
There's no n...
Format string, integer with leading zeros
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Use the format string "img_%03d.jpg" to get decimal numbers with three digits and leading zeros...
How to verify a user's password in Devise
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4 Answers
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How to merge a list of lists with same type of items to a single list of items?
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4 Answers
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Precedence and bitmask operations
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answered Feb 23 '14 at 22:13
MatthewMatthew
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How to add item to the beginning of List?
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744
Use the Insert method:
ti.Insert(0, initialItem);
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How can I brew link a specific version?
...h the available version numbers:
brew switch mysql 0
Update (15.10.2014):
The brew versions command has been removed from brew, but, if you do wish to use this command first run brew tap homebrew/boneyard.
The recommended way to install an old version is to install from the homebrew/versions ...
Ruby on Rails: How do I add placeholder text to a f.text_field?
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answered Jun 29 '11 at 18:04
nslocumnslocum
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