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What's the difference between an exclusive lock and a shared lock?
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answered Aug 22 '13 at 4:05
user2155031user2155031
2111 bronze badge
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SQL update from one Table to another based on a ID match
...As well as being standard SQL and thus more portable it also will raise an error in the event of there being multiple joined rows on the source side (and thus multiple possible different values to use in the update) rather than having the final result be undeterministic.
MERGE INTO Sales_Import
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Uses for the Java Void Reference Type?
... to write utility classes with a constructor as private Void() { throw new Error(); }. Some may prefer a no-value enum.
– Tom Hawtin - tackline
Nov 4 '11 at 21:32
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dropping infinite values from dataframes in pandas?
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I am getting this error - TypeError: ufunc 'isfinite' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ''safe''
– John
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Why doesn't the JVM cache JIT compiled code?
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– maaartinus
Jul 24 '14 at 2:05
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I would personally be fine with a "just persist the JIT ...
Embed git commit hash in a .Net dll
...albacore
– kornman00
Feb 4 '14 at 8:05
5
Following project https://github.com/jeromerg/NGitVersio...
What does ^M character mean in Vim?
...into an open terminal with vi running will result in a "pattern not found" error.
– IQAndreas
Oct 9 '13 at 13:14
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Does MySQL ignore null values on unique constraints?
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Result:
x
NULL
NULL
1
This is not true for all databases. SQL Server 2005 and older, for example, only allows a single NULL value in a column that has a unique constraint.
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Do try/catch blocks hurt performance when exceptions are not thrown?
...is ignorable.
– awe
Aug 27 '09 at 6:05
Table fixed header and scrollable body
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– Jeffrey A. Gochin
Sep 7 '15 at 0:05
You can manually fix the td width not matching the th width by seperating out t...