Problem
How to randomly extract 10 items from a database?
Workaround
There is no good solution, the efficiency is high, the method is simple.
Reference answer
If you have a cache system .... Load directly from the cache ....
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No ~
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Random syntax ...
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Why not use the RAND function
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Rand is definitely going to use it, but I don't know how to write this SQL statement.
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SELECT ... From ... WHERE ... ORDER by RAND () LIMIT 10
Copy Code
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SELECT ... From ... WHERE ... ORDER by RAND () LIMIT 10
of learning
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Thank you, I just wrote the same thing, but the prompt statement is wrong, does Rand have to capitalize? I was just a lowercase, wrong.
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http://www.bkjia.com/PHPjc/632599.html www.bkjia.com true http://www.bkjia.com/PHPjc/632599.html techarticle question How to randomly extract 10 of the contents of a database? The solution has no good solution, high efficiency, simple method. Refer to the answer if you have a cache system .... Directly from the slow ...
