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Editorial Team
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Asked: 2026-05-14T01:24:57+00:00

I’ve heard that mysql queries are very expensive, and that you should avoid at

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I’ve heard that mysql queries are very expensive, and that you should avoid at all costs making too many of them.

I’m developing a site that will be used by quite a few people, and I’m wondering:

How expensive are mysql queries actually? If I have 400,000 people in my database, how expensive is it to query it for one of them?

How close attention do I need to pay that I don’t make too many queries per client request?

Edit: TomTom couldn’t be more correct with his answer. According to perormance tests on the sites linked to in the comments (and a couple sites I found through a “mysql queries per second” search), I won’t be encountering problems for quite a while – mysql can do thousands of queries per second with a remote server.

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  1. Editorial Team

    Just ignore it. Seriously. If you need data, you need data. Make sure your queries are reasonable fast (i.e. proper indices). Get a proper server for handling the load. Use output caching as makes sense, start caching data once you know where you actually HAVE a problem.

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