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Similaire à Performance Schema @ MySQL Casual #2 (20)
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Performance Schema @ MySQL Casual #2
- 81. 基本的な使い方 SELECT * FROM performance_schema.objects_summary_global_by_type where object_schema='sbtest' *************************** 1. row *************************** OBJECT_TYPE: TABLE OBJECT_SCHEMA: sbtest OBJECT_NAME: sbtest COUNT_STAR: 25368838 SUM_TIMER_WAIT: 35553955610133 MIN_TIMER_WAIT: 61953 AVG_TIMER_WAIT: 1401180 MAX_TIMER_WAIT: 21716203284 1 row in set (0.01 sec)
- 109. ビューの例 create view top_access_tables as select * from performance_schema. objects_summary_global_by_type order by count_star desc limit 10;