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MYSQL OR vs IN performance
...eries (for consistency, I used sql_no_cache):
IN: 2.34969592094s
OR: 5.83781504631s
Update:
(I don't have the source code for the original test, as it was 6 years ago, though it returns a result in the same range as this test)
In request for some sample code to test this, here is the simplest po...
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JetBrains / IntelliJ keyboard shortcut to collapse all methods
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answered May 13 '13 at 16:37
lifuslifus
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Laravel Check If Related Model Exists
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In php 7.2+ you can't use count on the relation object, so there's no one-fits-all method for all relations. Use query method instead as @tremby provided below:
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generic solution working on all...
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Combine two data frames by rows (rbind) when they have different sets of columns
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Regular expression to find URLs within a string
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Is there auto type inferring in Java?
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NINCOMPOOPNINCOMPOOP
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String literals: Where do they go?
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A common technique is for string literals to be put in "read-only-data" section which gets mappe...