Re: materialized views and ORDER BY

2007/4/25, Greg Norris <spikey.mcmarbles_at_gmail.com>:
> I have a developer who's complaining that the ORDER BY clause is being
> dropped from his materialized views, thus requiring him to recreate them
> several times a day. I've told him I'm virtually certain this is by design,
> so that the MV behavior doesn't change depending upon the refresh method,
> but have so far been unable to find it explicitly documented... can anyone
> point me to a definitive statement?

MV data are stored just like table data. Oracle never ever guaranteed that someone will get back rows in any particular order from tables. That's also true for MVs. So if you need to get data from MVs ordered the only guaranteed approach is to add order by clause.

Gints Plivna
http://www.gplivna.eu

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