Re: Materialized Views

2013-11-26 Thread CompareHybridCars
This site gives information on how to create triggers to automatically maintain your MV: www.materialized.info

Re: Materialized Views

2013-09-25 Thread CompareHybridCars
There is also www.materialized.info , providing a simpler example of creating a MV, including triggers to maintain it.

Re: Materialized Views

2013-06-23 Thread Rafael Valenzuela
Ok Thanks El 23/06/2013 21:13, "Reindl Harald" escribió: > > > Am 23.06.2013 20:59, schrieb Bruce Ferrell: > > On 06/23/2013 11:18 AM, Rafael Valenzuela wrote: > >> Hi All, > >> I have a question about the materialized views , i remember in the D

Re: Materialized Views

2013-06-23 Thread Reindl Harald
Am 23.06.2013 20:59, schrieb Bruce Ferrell: > On 06/23/2013 11:18 AM, Rafael Valenzuela wrote: >> Hi All, >> I have a question about the materialized views , i remember in the DBA >> course my trainer said me. In Mysql doesn't exist this type views like >> Oracle

Re: Materialized Views

2013-06-23 Thread Bruce Ferrell
On 06/23/2013 11:18 AM, Rafael Valenzuela wrote: Hi All, I have a question about the materialized views , i remember in the DBA course my trainer said me. In Mysql doesn't exist this type views like Oracle. But My boss think the opposite. In the new version has this type of view? an

Re: Materialized Views

2013-06-23 Thread Bruce Ferrell
On 06/23/2013 11:18 AM, Rafael Valenzuela wrote: Hi All, I have a question about the materialized views , i remember in the DBA course my trainer said me. In Mysql doesn't exist this type views like Oracle. But My boss think the opposite. In the new version has this type of view? an

Materialized Views

2013-06-23 Thread Rafael Valenzuela
Hi All, I have a question about the materialized views , i remember in the DBA course my trainer said me. In Mysql doesn't exist this type views like Oracle. But My boss think the opposite. In the new version has this type of view? and the diferences the differences between views Mysq

Fwd: Does mysql support materialized views?

2009-04-20 Thread Olexandr Melnyk
Query cache stores "select" query together with its results. When the same query is sent again, result from the cache is returned. Whenever some table is modified, all cache entries referencing it are deleted. That happens even when modification doesn't affect cached rows, eg.: SELECT a FROM a_ta

Re: Does mysql support materialized views?

2009-04-20 Thread Olexandr Melnyk
On Mon, Apr 20, 2009 at 12:41 PM, Lin Chun wrote: > Hi  Olexandr Melnyk > > That's to say, create the aggregation tables and update them by triggers? > I've noticed a "update view" in Mysql , can it work under the aggretate > operation? You're not looking for views, you need to use normal tables.

Re: Does mysql support materialized views?

2009-04-20 Thread Morten
On Apr 20, 2009, at 11:34 AM, Olexandr Melnyk wrote: No, you will have to "emulate" them using triggers or stored procedures. Or: 1. Create table "this_is_not_a_view" and use that as the materialized view 2. Build a new version in the background "this_is_not_a_view_pending" as per your

Re: Does mysql support materialized views?

2009-04-20 Thread Olexandr Melnyk
No, you will have to "emulate" them using triggers or stored procedures. On Mon, Apr 20, 2009 at 12:28 PM, Lin Chun wrote: > Hi > > I am now working with Mondrian , and need  tuning the database, as the > materialized views can improve the performance > and doesn't

Re: Does mysql support materialized views?

2009-04-20 Thread Krishna Chandra Prajapati
No On Mon, Apr 20, 2009 at 2:58 PM, Lin Chun wrote: > Hi > > I am now working with Mondrian , and need tuning the database, as the > materialized views can improve the performance > and doesn't need to create the fact tables > > > > cheers > -- >

Does mysql support materialized views?

2009-04-20 Thread Lin Chun
Hi I am now working with Mondrian , and need tuning the database, as the materialized views can improve the performance and doesn't need to create the fact tables cheers -- - Lin Chun

Results of materialized views project

2006-01-23 Thread Andrew Roth
architecture of MySQL and suggest refactoring to implement materialized views. First off, thanks for all the responses we got; we got some good ideas from them. Since we are all fans of MySQL, I promised to post our results in the hope that it would be of help to MySQL. Our full final report can be

RE: Input on Materialized Views

2005-10-21 Thread Jon Frisby
> Better, mark this view (or particular rows if it's not too > expensive) as "dirty" and recompute it only on access, you > may spare few cycles... That sort of depends on what you're going for. Typically materialized views are used for summarizations of hypercubes

Re: Input on Materialized Views

2005-10-20 Thread Pooly
2005/10/20, Heikki Tuuri <[EMAIL PROTECTED]>: > Andrew, > > how about using triggers to recompute materialized views? A challenge is to > write an automatic program that can compute the required triggers based on > the view definition. The materialized view would be a n

Re: Input on Materialized Views

2005-10-20 Thread Andrew Roth
On 10/19/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > So... which of the many storage engines are you hoping to extend? It would > be nice if you could do them all but I think we all anticipate that InnoDB > will pose special challenges. After a bit of group consultation, we've decided to

Re: Input on Materialized Views

2005-10-20 Thread Heikki Tuuri
Andrew, how about using triggers to recompute materialized views? A challenge is to write an automatic program that can compute the required triggers based on the view definition. The materialized view would be a normal table. Triggers would update it. Regards, Heikki Oracle/Innobase

Re: Input on Materialized Views

2005-10-19 Thread SGreen
Roth <[EMAIL PROTECTED]> wrote on 10/19/2005 11:06:33 AM: > Thanks for the clarification and comments. I should reiterate that > for our project, we do *not* need to actually implement materialized > views, but only suggest refactoring and/or new components required to > i

Re: Input on Materialized Views

2005-10-19 Thread Andrew Roth
Thanks for the clarification and comments. I should reiterate that for our project, we do *not* need to actually implement materialized views, but only suggest refactoring and/or new components required to implement them. I think implementing it would too time consuming for a group of three

Re: Input on Materialized Views

2005-10-19 Thread SGreen
nd and see if someone from MySQL AB has > time to answer the questions, but here's my personal view... > > I had to look up materialized views and if I read it correctly what is > said about this at > http://www.akadia.com/services/ora_materialized_views.html: > > > 1. H

Re: Input on Materialized Views

2005-10-19 Thread Jigal van Hemert
hang around and see if someone from MySQL AB has time to answer the questions, but here's my personal view... I had to look up materialized views and if I read it correctly what is said about this at http://www.akadia.com/services/ora_materialized_views.html: 1. How feasible would im

Input on Materialized Views

2005-10-18 Thread Andrew Roth
sible would implementing materialized views be? 2. Any reasons why materialized views haven't been added already? 3. Any web pages or archived messages relating to this. (I have search the archives and didn't find anything.) 4. Any comments at all relating to this endeavor. Many thanks, -