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How to open a file for both reading and writing?
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Here's how you read a file, and then write to it (overwriting any existing data), without clos...
Compress files while reading data from STDIN
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edited Feb 21 '17 at 15:43
Alex Riley
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Rebase a single Git commit
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answered Jan 31 '13 at 21:46
tewetewe
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Javascript: Extend a Function
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edited Jan 2 '11 at 13:36
answered Jan 2 '11 at 12:58
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How many characters can UTF-8 encode?
If UTF-8 is 8 bits, does it not mean that there can be only maximum of 256 different characters?
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Efficient way to rotate a list in python
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26 Answers
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Static member initialization in a class template
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edited Jul 12 '10 at 17:07
answered Jul 12 '10 at 15:48
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How do I know the current width of system scrollbar?
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Frank Krueger
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answered May 13 '09 at 9:13
leppieleppie
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Postgresql: Conditionally unique constraint
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@UniqueConstraint and @Column(unique = true) in hibernate annotation
...1, and if you try to insert another record with mask.id = 1 and group.id = 2, it'll be inserted successfully, whereas in the first case it wouldn't.
If you'd like to have both mask and group to be unique separately and to that at class level, you'd have to write the code as following:
@Table(
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