…query – Query Cache does simple optimization to check if query can be cached. As I mentioned only SELECT queries…Counting query cache efficiency There are few ways you can look at query_cache efficiency. First looking at number of your selects – Com_select…
Post: Why MySQL could be slow with large tables ?
June 9, 2006 By 139 Comments
… well for Oracle,MS SQL, …for our worse case scenario. It …select count(pad) from large; +————+ | count(pad) | +————+ | 31457280 | +————+ 1 row in set (4 min 58.63 sec) mysql> select count… There are certain optimizations in works … query execution, which means if single query…
