...@mailinglists.sqlite.org] On
Behalf Of Richard Hipp
Sent: 24 August 2018 15:43
To: SQLite mailing list
Subject: Re: [sqlite] Query optimisation
On 8/24/18, David Raymond wrote:
> Running just "explain some query" will give you the virtual machine program
> that it plans on using. You can then scan thr
On 8/24/18, David Raymond wrote:
> Running just "explain some query" will give you the virtual machine program
> that it plans on using. You can then scan through that to see what it's
> doing. Note that the descriptions on the below page for those op codes are
> sometimes really confusing and it
1 000
sqlite>
-Original Message-
From: sqlite-users [mailto:sqlite-users-boun...@mailinglists.sqlite.org] On
Behalf Of David Wellman
Sent: Friday, August 24, 2018 7:47 AM
To: SQLite Users
Subject: [sqlite] Query optimisation
HI all,
I would like to use the
HI all,
I would like to use the following example as a learning exercise for myself
to check my understanding of part of sqlite processing.
I have the following query which functionally works fine, and to be upfront
about it the volume of data is so small that performance is not an issue.
Hi
I have found that using an in clause with a subquery can be twice as fast as
a straght join. Can enyone explain the logic of this to me? I am curious to
understand it so I can optimise other queries for better performance.
I have included the queries below:
OT_TARGETS has 20 rows for
5 matches
Mail list logo
