0
votes
1answer
35 views

The materialized view is already optimal and cannot be tuned any further

I have tried DBMS_ADVISOR.TUNE_MVIEW to verify some materialized views created locally. One of the result returns an error: Error report: ORA-13600: error encountered in Advisor QSM-03116: The ...
5
votes
1answer
52 views

Why does dropping a MVIEW trigger a full refresh?

I just created a materialized view in Oracle but realized I used the wrong script, so I wanted to drop the MVIEW again. The MVIEW was created with a statement like this: create materialized view ...
2
votes
1answer
76 views

How to move 200 materialized views without having to re-create in the new home

I am moving a database with 200 materialized views into a new server. All of them are 'fast refresh' materialized views , means they have corresponding materialized view logs, in this case sitting on ...
1
vote
0answers
56 views

Refreshing Materialized view creates many child cursors

Doing some tests, I noticed that having REFRESH FAST ON COMMIT materialized view and flashbacks enabled cause Oracle to create many child cursors in some cases. For example, CREATE TABLE table1 ...
4
votes
1answer
854 views

Materialized view: compilation_error

When executing the following code on the SCOTT schema I receive a compilation_error. What am I doing wrong here? I doesn't even tell me what the error is. SQL> create materialized view dept_emp_mv ...
1
vote
1answer
160 views

One Materialized Views in Two Refresh Groups

I have five materialized views that I want to refresh in two occasions, every Sunday and at the 1st of every month. I created a Refresh Group for the weekly and that works fine. But when I tried to ...
0
votes
0answers
148 views

Materialized view for a yet-to-be-defined DBlink

In our product we have a main application with an oracle 11g DB and an optional module with another DB. We want the two to communicate through a dblink and I was told to put some code for the ...
3
votes
2answers
498 views

Materialized view for the last 24 hour period

I am collecting spatial point data that has an associated timestamp with it. I want to create a view of this data for the last 24 hour period. Because I am piping this spatial data through ArcGIS ...
0
votes
1answer
40 views

Oracle scheduler chain priority in data warehouse applications

The scenario is as follows: We have a data warehouse type application that relies on the Oracle job scheduler and a Chain. This chain is responsible for generating materialized views (caches) that ...
2
votes
1answer
736 views

Creating Bitmap Indexes on a Materialized View

I've been reading this article, discussing the benefits, tradeoffs, and potential problems with Bitmapped Indexes. It is mentioned: Also, remember that bitmap indexes are only suitable for static ...
1
vote
1answer
3k views

Materialized view taking too much time

i create a materialized view fast refresh. it takes almost 45 min to create but it did not refresh in 24 hours. i tried it on with index and without index. i check the log of all table max record in ...
1
vote
2answers
1k views

Materialized View - Oracle

I have materialized view for which i want to alter its refresh time: REFRESH FORCE START WITH SYSDATE NEXT SYSDATE +1 DISABLE QUERY REWRITE I want to know few things in this. What does NEXT ...
2
votes
2answers
2k views

WITH using INDEX hint in Oracle

I have a fairly complicated query. I have written two different query to accomplish my goal. First one is using WITH, other one is using global temporary tables. First One: WITH A ( KNO .. ) , ...
1
vote
1answer
387 views

Oracle Materialized View

I need your help with a issue on Oracle Materialized View. I created the Materialized View using the following command: CREATE MATERIALIZED VIEW SNAP_TEST TABLESPACE tbs NOCACHE LOGGING NOPARALLEL ...
1
vote
1answer
825 views

How to drop materialized view logs if underlying log table ($MLOG_…) is dropped?

In an attempt to work around another problem, I have mistakenly dropped the underlying tables for a materialized view log, and now I can neither drop that log nor the MV relating to it. Our DBA says ...
0
votes
1answer
782 views

Problem with dropping materialized views and mv logs taking a long time (or never) to complete

Apologies if it's a simple question, DBA is not my main area of expertise! I have a materialized view that's fast refreshable, joining two tables. When I try to drop either the MV itself or logs ...
2
votes
2answers
586 views

Recreating mat. view in Oracle failing due to dba_summaries entry, how to prevent?

I have run into the issue described here several times in our current project and I would like to understand how it happens and how to prevent it in the future. What is the meaning of DBA_SUMMARIES ...
-1
votes
1answer
1k views

Materialized views master table

New to this topic - in my current environment we are not doing any replication but we use materialized views frequently in order to achieve performance gains on complex views that are in turn used by ...
2
votes
2answers
1k views

Materialized views use older dbms_job instead of scheduler?

Very new to this topic - using 11g. When I create a materialized view, a matching job (not a scheduler job) is created. But it's my understanding that dbms_job is being replaced by dbms_scheduler. ...
2
votes
2answers
864 views

Error updating a master table of a materialized view

I've created several materialized views, and all but one are working correctly. The specific error I'm getting (via a Java job) is this: error loading from table 'STG_INTERACTION_RESOURCE_FACT' to ...
7
votes
2answers
2k views

Limit redo for materialized view complete refresh or manual equivalent

A materialized view(MV) log can be used to allow a MV to do a fast refresh which only modifies the data that has changed. However, various conditions prevent the MV from using the log and therefore ...