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MySQL: how to get the difference between two timestamps in seconds
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UNIX_TIMESTAMP(ts1) - UNIX_TIMESTAMP(ts2)
If you want an unsigned difference, add an ABS() ar...
How to parameterize @Scheduled(fixedDelay) with Spring 3.0 expression language?
...school way ;-)
– ngeek
Apr 8 '10 at 21:10
1
Is there any Java equivalent for above config?
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What is the syntax for a default constructor for a generic class?
...5.7307 4.9328 45.2525 4.66231 44.6595 4.66231C43.6264 4.66231 43.1481 5.28821 43.1481 6.59048V11.9512C43.1481 13.2535 43.6264 13.8962 44.6595 13.8962C45.6924 13.8962 46.1709 13.2535 46.1709 11.9512V9.17788Z\"/\u003e\u003cpath d=\"M32.492 10.1419C32.492 12.6954 34.1182 14.0484 37.0451 14.0484C39.9723...
C# version of java's synchronized keyword?
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Sure, so every Thread can easily access it without passing references around.
– Jan Gressmann
Feb 12...
CMake: Project structure with unit tests
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answered Jan 21 '13 at 21:42
FraserFraser
62k1414 gold badges203203 silver badges199199 bronze badges
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How can I filter a Django query with a list of values?
...5.7307 4.9328 45.2525 4.66231 44.6595 4.66231C43.6264 4.66231 43.1481 5.28821 43.1481 6.59048V11.9512C43.1481 13.2535 43.6264 13.8962 44.6595 13.8962C45.6924 13.8962 46.1709 13.2535 46.1709 11.9512V9.17788Z\"/\u003e\u003cpath d=\"M32.492 10.1419C32.492 12.6954 34.1182 14.0484 37.0451 14.0484C39.9723...
How to include “zero” / “0” results in COUNT aggregate?
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You must use LEFT JOIN instead of INNER JOIN
SELECT person.person_id, COUNT(appointment.person...
How can I display just a portion of an image in HTML/CSS?
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answered Sep 11 '08 at 21:37
EspoEspo
38.8k2020 gold badges126126 silver badges156156 bronze badges
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SQL multiple column ordering
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Multiple column ordering depends on both column's corresponding values:
Here is my table exampl...
How to avoid warning when introducing NAs by coercion
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edited Feb 21 '13 at 0:57
answered Feb 20 '13 at 16:42
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