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Asked: 2026-05-30T22:04:23+00:00

I have about 10 tables with ~10,000 rows each which need to be pulled

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I have about 10 tables with ~10,000 rows each which need to be pulled very often.

For example, list of countries, list of all schools in the world, etc.

PHP can’t persist this stuff in memory (to my knowledge) so I would have to query the server for a SELECT * FROM TABLE every time. Should I use memcached here? At first though it’s a clear absolutely yes, but at second thought, wouldn’t mysql already be caching for me and this would be almost redundant?

I don’t have too much understanding of how mysql caches data (or if it even does cache entire tables).

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1 Answer

  1. Editorial Team

    You could use MySQL query cache, but then you are still using DB resources to establish the connection and execute the query. Another option is opcode caching if your pages are relatively static. However I think memcached is the most flexible solution. For example if you have a list of countries which need to be accessed from various code-points within your application, you could pull the data from the persistent store (mysql), and store them into memcached. Then the data is available to any part of your application (including batch processes and cronjobs) for any business requirement.

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