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为什么mysql明明开启了缓存但无法使用?

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2016-06-06 09:45:371027browse

mysql缓存

第一步: SHOW VARIABLES LIKE '%cache%';

结果: have_query_cache YES

第二步: SELECT SQL_CACHE cr_name FROM t_course t WHERE t.course_id = 365;

第三步: SHOW STATUS LIKE '%Qcache%';
Qcache_free_blocks 0
Qcache_free_memory 0
Qcache_hits 0
Qcache_inserts 0
Qcache_lowmem_prunes 0
Qcache_not_cached 0
Qcache_queries_in_cache 0
Qcache_total_blocks 0

求解,谢谢!
实在是找不出哪里有禁用缓存的地方

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