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Add unique constraint to combination of two columns
...ert the row and returning an exception (exceptions are expensive).
http://www.sqlperformance.com/2012/08/t-sql-queries/error-handling
http://www.mssqltips.com/sqlservertip/2632/checking-for-potential-constraint-violations-before-entering-sql-server-try-and-catch-logic/
If you want to prevent exce...
Twitter Bootstrap: div in container with 100% height
...ml, body {
height: 100%;
}
.min-100 {
min-height: 100%;
}
https://www.codeply.com/go/dTaVyMah1U
Option 2_ Use vh units:
.vh-100 {
min-height: 100vh;
}
https://www.codeply.com/go/kMahVdZyGj
Then, use flexbox direction column d-flex flex-column on the container, and flex-grow-1 on an...
What is the difference between int, Int16, Int32 and Int64?
...
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answered Mar 14 '12 at 6:08
user1082916user1082916
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S3 Error: The difference between the request time and the current time is too large
... then restart ntp service:
sudo service ntp restart
Source: https://www.allcloud.io/how-to/how-to-fix-amazon-s3-requesttimetooskewed/
And a more general article on keeping your time synchronized with NTP:
https://www.digitalocean.com/community/tutorials/how-to-set-up-time-synchronization-on-...
nonlocal keyword in Python 2.x
...
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answered Apr 16 '13 at 8:51
Marc van LeeuwenMarc van Leeuwen
...
How do you add Boost libraries in CMakeLists.txt?
... SpandanSpandan
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What is the purpose of Rank2Types?
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answered Jul 12 '14 at 21:57
dfeuerdfeuer
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Fixing JavaScript Array functions in Internet Explorer (indexOf, forEach, etc.) [closed]
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answered Mar 10 '11 at 10:29
Andy EAndy E
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What does the 'static' keyword do in a class?
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answered Jan 5 '09 at 17:45
Paul TomblinPaul Tomblin
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Remove elements from collection while iterating
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answered May 3 '12 at 13:07
NPENPE
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