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Re: Slow Query, Optimization Advice Needed
Posted by: Øystein Grøvlen ()
Date: April 27, 2016 01:02AM

Hi,

Which version of MySQL?

Can you show the output of EXPLAIN for this query? That will tell us what the current query plan is.

You seemed to be well covered with indexes, but a combined index on tblMovements(nTrailerID, tsMovement) might speed up the execution of the
subquery.

Øystein Grøvlen,
Senior Principal Software Engineer,
MySQL Group, Oracle,
Trondheim, Norway

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Subject Views Written By Posted
Slow Query, Optimization Advice Needed 724 Michael Lawson 04/26/2016 09:30AM
Re: Slow Query, Optimization Advice Needed 352 Øystein Grøvlen 04/27/2016 01:02AM
Re: Slow Query, Optimization Advice Needed 410 Michael Lawson 04/27/2016 07:20PM
Re: Slow Query, Optimization Advice Needed 358 Peter Brawley 04/27/2016 11:28PM
Re: Slow Query, Optimization Advice Needed 338 Øystein Grøvlen 04/28/2016 01:25AM
Re: Slow Query, Optimization Advice Needed 341 Rick James 05/01/2016 11:47PM
Re: Slow Query, Optimization Advice Needed 351 Øystein Grøvlen 05/02/2016 01:28AM
Re: Slow Query, Optimization Advice Needed 347 Øystein Grøvlen 04/28/2016 01:12AM


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