# Query Analytics 에서의 DB필터

**URL:** <https://forums.percona.com/t/query-analytics-db/14641>\
**Category:** PMM 2.x\
**Tags:** mysql, closed-no-reply\
**Created:** [March 7, 2022, 4:37am UTC](https://forums.percona.com/t/query-analytics-db/14641 "2022-03-07T04:37:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![hj.choi](https://avatars.discourse-cdn.com/v4/letter/h/7feea3/32.png) [@hj.choi](https://forums.percona.com/u/hj.choi)\
**Post date:** [March 7, 2022, 4:37am UTC](https://forums.percona.com/t/query-analytics-db/14641/1 "2022-03-07T04:37:24Z")

</div>

hello cool people  
I am trying to apply mysql DB filter, but only ‘n/a’ is displayed as the default filter  
I don’t know what to set in Variables  
can you help me?