Re: DELETE vs TRUNCATE explanation

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От
Mark Thornton
Тема
Re: DELETE vs TRUNCATE explanation
Дата
Msg-id
4FFDF0F1.9010005@optrak.com
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Дерево обсуждения
DELETE vs TRUNCATE explanation Craig Ringer <ringerc@ringerc.id.au>
Re: DELETE vs TRUNCATE explanation Daniel Farina <daniel@heroku.com>
Re: DELETE vs TRUNCATE explanation Tom Lane <tgl@sss.pgh.pa.us>
Re: DELETE vs TRUNCATE explanation "ktm@rice.edu" <ktm@rice.edu>
Re: DELETE vs TRUNCATE explanation Matthew Woodcraft <matthew@woodcraft.me.uk>
Re: DELETE vs TRUNCATE explanation Craig Ringer <ringerc@ringerc.id.au>
Re: DELETE vs TRUNCATE explanation Daniel Farina <daniel@heroku.com>
Re: DELETE vs TRUNCATE explanation Craig Ringer <ringerc@ringerc.id.au>
Re: DELETE vs TRUNCATE explanation Daniel Farina <daniel@heroku.com>
Re: DELETE vs TRUNCATE explanation Craig Ringer <ringerc@ringerc.id.au>
Re: DELETE vs TRUNCATE explanation Jeff Janes <jeff.janes@gmail.com>
Re: DELETE vs TRUNCATE explanation "Harold A. Giménez" <harold.gimenez@gmail.com>
Re: DELETE vs TRUNCATE explanation Jeff Janes <jeff.janes@gmail.com>
Re: DELETE vs TRUNCATE explanation Jeff Janes <jeff.janes@gmail.com>
Re: DELETE vs TRUNCATE explanation Craig James <cjames@emolecules.com>
Re: DELETE vs TRUNCATE explanation Shaun Thomas <sthomas@optionshouse.com>
Re: DELETE vs TRUNCATE explanation Andrew Dunstan <andrew@dunslane.net>
Re: DELETE vs TRUNCATE explanation Mark Thornton <mthornton@optrak.com>
Re: DELETE vs TRUNCATE explanation Craig James <cjames@emolecules.com>
Re: DELETE vs TRUNCATE explanation Craig Ringer <ringerc@ringerc.id.au>
On 11/07/12 21:18, Craig James wrote:
>
> It strikes me as a contrived case rather than a use case.  What sort 
> of app repeatedly fills and truncates a small table thousands of times 
> ... other than a test app to see whether you can do it or not?
If I have a lot of data which updates/inserts an existing table but I 
don't know if a given record will be an update or an insert, then I 
write all the 'new' data to a temporary table and then use sql 
statements to achieve the updates and inserts on the existing table.

Is there a better way of doing this in standard SQL?

Mark


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