# PMM Query Analytics - 2 Questions about some Queries

**URL:** <https://forums.percona.com/t/pmm-query-analytics-2-questions-about-some-queries/7377>\
**Category:** PMM 1.x\
**Created:** [January 11, 2020, 7:38am UTC](https://forums.percona.com/t/pmm-query-analytics-2-questions-about-some-queries/7377 "2020-01-11T07:38:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mjctjacinto](https://avatars.discourse-cdn.com/v4/letter/m/f14d63/32.png) [@mjctjacinto](https://forums.percona.com/u/mjctjacinto)\
**Post date:** [January 11, 2020, 7:38am UTC](https://forums.percona.com/t/pmm-query-analytics-2-questions-about-some-queries/7377/1 "2020-01-11T07:38:02Z")

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I´m using PMM version 1.17.1

What kind of Queries are Low Ranking Queries, that are on the top of Load of my system?  
What are INIT DB, that are also consuming some resources?

 ![photoid=55192](https://us1.discourse-cdn.com/flex019/uploads/percona1/original/2X/7/731aac5881aee401e78b03f474483dcb97090799.jpeg)

 ![photoid=55193](https://us1.discourse-cdn.com/flex019/uploads/percona1/original/2X/e/ea3e6eb381d0db6baf0567e99d45dc234e62ab89.jpeg)

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**Author:** ![Peter](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/peter/32/2_2.png) [@Peter](https://forums.percona.com/u/Peter)\
**Post date:** [January 11, 2020, 9:21am UTC](https://forums.percona.com/t/pmm-query-analytics-2-questions-about-some-queries/7377/2 "2020-01-11T09:21:29Z")

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Hi,

1. Low Ranking Queries are queries which have not made to the topN queries which PMM stores for every period. You have lots of queries it looks!
2. Init DB is what is logged to the query when you change database (like use XYZ)

More info here [URL][Free Porn Photos, Hot XXX Pics and Best Sex Images on www.justskins.com](http://www.justskins.com/forums/what-does-init-db-245849.html%5B/URL%5D)

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**Author:** ![mjctjacinto](https://avatars.discourse-cdn.com/v4/letter/m/f14d63/32.png) [@mjctjacinto](https://forums.percona.com/u/mjctjacinto)\
**Post date:** [January 25, 2020, 5:23am UTC](https://forums.percona.com/t/pmm-query-analytics-2-questions-about-some-queries/7377/3 "2020-01-25T05:23:02Z")

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1 - Yes we do.  
2 - Got it! It´s the PHP mysql\_select\_db().

Thanks for help Peter.