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SQL Joins Vs SQL Subqueries (Performance)?
... have serious doubt on this answer, since most DBMS, definitely SQL Server 2008 and later, translate the single ID subquery (not correlated, meaning: not referencing multiple outer query columns) into a relatively fast semi-join. Also, as previously noted in another answer, the first, real join will...
Making heatmap from pandas DataFrame
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joelostblomjoelostblom
20.2k99 gold badges8989 silver badges102102 bronze badges
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FFMPEG (libx264) “height not divisible by 2”
...t; it didn't care about the video size. Then I needed to convert it to yuv420p, and then it cared about the video size. I looked up yuv420p on wikipedia, I think it's a multi-pixel color format, that needs the image to be a specific size. Not sure why it matters compressed, though.
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How to get the current time as datetime
...:) codingexplorer.com/…
– Max
Jun 20 '15 at 8:09
15
It looks that the new Swift version (2) you...
How do I verify/check/test/validate my SSH passphrase?
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answered Dec 10 '10 at 17:20
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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How to enter a multi-line command
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edited Aug 21 '12 at 20:02
answered Jul 13 '10 at 15:58
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Getting “NoSuchMethodError: org.hamcrest.Matcher.describeMismatch” when running test in IntelliJ 10.
...f JUnit.
– MatrixFrog
Oct 24 '11 at 20:40
2
I removed IntelliJ's copy of junit.jar and junit-4.8....
Can you attach a UIGestureRecognizer to multiple views?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Apr 6 '11 at 14:07
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Unicode character in PHP string
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answered May 19 '11 at 12:20
Stefan GehrigStefan Gehrig
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Find the nth occurrence of substring in a string
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edited Apr 24 '18 at 17:20
answered Oct 26 '12 at 20:59
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