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I have few static tables, I would like to use caching system, Either Mysql’s Query cache or changing database storage to Memory (Heap). I need a advice from experts, Which one will be better? or can I use both?.
DB MySql, Type MyISAM.
The query cache is used automatically, although it might not be very large – the default values are quite small. Read https://blogs.oracle.com/dlutz/entry/mysql_query_cache_sizing for some advise on setting it to a sensible value. I have it set to 64 MB.
Memory tables don’t save their data – their contents are lost when the server reboots. So if you wanted to use them you would need to do a lot of manual synching with ‘real’ tables – likely to be unreliable and error prone. I’ve never used them, in 12 years of programming.