LOV on Materialized View--Disco newbie

Hello Forum Members,
I have a materialized view with Region Name as a field.
I have create a parameter in Discoverer desktop[10g]. I am unable to get List of Values for the parameter.When I create the parameter based on a table I am getting list of values.
Please advise me.
Thanks

Please ignore my previous post.
Thanks

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Disco 4i Error 'This user requires Create Any Materialized View Sys Priv'

Hi,
Firstly I will say we are late with moving to Disco 10g, fully understood and constantly remind people of need to upgrade.
Oracle Apps 11i instance, we have upgraded the database 10g.
In Disco 4i Admin, Import folder from Database, we receive Error Message:
*'This user requires Create Any Materialized View System Priviledge'*
Have spoken to number of our DBA's but been unable to resolve this. I have read loads of stuff about similar issues, but no direct hits really help me.
I am guessing we need to logon as SYSTEM db user and execute
h5. SQL> grant create materialized view to <username>;
h5. SQL> grant alter any materialized view to <username>;
Please can anyone advise, I am sure it's going to be a DB/Schema owner, as the username; i.e. APPS or EUL_US?
I cannot see it being the fnd_user for the Disco EUL owner, e.g. SYSADMIN or PatStock.
Thanks
Mike

Hi,
If you are doing the import as SYSADMIN then you are connected as APPS so this is the database user that needs additional privilege.
However, the APPS user only needs create materialized view privileges if there are manually created summary folders in the EUL, i.e. summary folders based on materialized views. If you are not using these then the privilege is not required.
The EUL_US user just needs to give Discoverer Administrator privileges to the SYS_ADMIN user. Nothing else should be needed.
Rod West

How to get Materialized View to ignore unused columns in source table

When updating a column in a source table, records are generated in the corresponding materialized view log table. This happens even if the column being updated is not used in any MV that references the source table. That could be OK, so long as those updates are ignored. However they are not ignored, so when the MV is fast refreshed, I find it can take over a minute, even though no changes are required or made. Is there some way of configuring the materialized view log such that the materialized view refresh ignores these updates ?
So for examle if I have table TEST:
CREATE table test (
d_id NUMBER(10) PRIMARY KEY,
d_name VARCHAR2(100),
d_desc VARCHAR2(256)
This has an MV log MLOG$_TEST:
CREATE MATERIALIZED VIEW LOG ON TEST with rowid, sequence, primary key;
CREATE MATERIALIZED VIEW test_mv
refresh fast on demand
as
select d_id, d_name
from test;
INSERT 200,000 records
exec dbms_mview.refresh('TEST_MV','f');
update test set d_desc = upper(d_desc) ;
exec dbms_mview.refresh('TEST_MV','f'); -- This takes 37 seconds, yet no changes are required.
Oracle 10g/11g

I would love to hear a positive answer to this question - I have the exact same issue :-)
In the "old" days (version 8 I think it was) populating the materialized view logs was done by Oracle auto-creating triggers on the base table. A "trick" could then make that trigger become "FOR UPDATE OF <used_column_list>". Now-a-days it has been internalized so such "triggers" are not visible and modifiable by us mere mortals.
I have not found a way to explicitly tell Oracle "only populate MV log for updates of these columns." I think the underlying reason is that the MV log potentially could be used for several different materialized views at possibly several different target databases. So to be safe that the MV log can be used for any MV created in the future - Oracle always populates MV log at any update (I think.)
One way around the problem is to migrate to STREAMS replication rather than materialized views - but it seems to me like swatting a fly with a bowling ball...
One thing to be aware of: Once the MV log has been "bloated" with a lot of unneccessary logging, you may perhaps see that all your FAST REFRESHes afterwards becomes slow - even after the one that checked all the 200000 unneccessary updates. We have seen that it can happen that Oracle decides on full table scanning the MV log when it does a fast refresh - which usually makes sense. But after a "bloat" has happened, the high water mark of the MV log is now unnaturally high, which can make the full table scan slow by scanning a lot of empty blocks.
We have a nightly job that checks each MV log if it is empty. If it is empty, it locks the MV log and locks the base table, checks for emptiness again, and truncates the MV log if it is still empty, before finally unlocking the tables. That way if an update during the day has happened to bloat the MV log, all the empty space in the MV log will be reclaimed at night.
But I hope someone can answer both you and me with a better solution ;-)

Materialized Views in Discoverer 4.1.33

While trying to create a summary folder I get an error that my user id does not have privilige /quota to create a materialized view and that summary management is not available because the user does not have global query rewrite privilige .
If any one has a resolution to this problem than please respond ASAP. The privilige tab in Disco Admin for the particular Business Area already shows all options for the user checked including the one for creating Summaries and the above error still crops up

Gurman,
The Privilege that are required to create a Summary Folder using Materialized views are,
1. Query Rewrite.
2. Create Any Materialized View.
3. Drop Any Materialized View.
4. Alter Any Materialized View.
So Login into SQL*Plus as SYS User or SYSTEM User or as any DBA User and execute the below SQL,
SQL> Grant Query ReWrite, Create Any Materialize View, Alter Any Materialized View, Drop Any Materialized View to <EUL OWNDER>;
This will solve your issue.
Thanks,
Selva.
null

Problem with replication based on materialized view

Problem with replication based on materialized view...
Given:
1. Source: S-1
2. Targets: T-1, T-2
3. DB links: from T-1 to S-1, from T-2 to S-1
Required replicate table TBL on S-1 to T-1, T-2 via db links.
On S-1 was created materialized view log with PK on TBL. On T-1, T-2 were created mat.views as "on prebuilt table refresh fast on demand". In case of get "ORA-12034: materialized view log younger than last refresh" or initial load - perform complete refresh. Initial load on T-1 takes about 1 hour, on T-2 - about 12 hours. Refresh is executed via job with minutely interval. If refresh is running then it is not performed.
Problem: after initial load on T-1 performs fast refresh, but on T-2 raised ORA-12034 and complete performs again.
What's wrong?

34MCA2K2, Google lover?
I confess perhaps I gave a little info.
View log was created before MV.
It was the first initial load.
No refresh failed.
No DDL.
No purge log.
Not warehouse.
There is no such behavior for MVs on another sites.
P.S. I ask help someone who knows what's wrong or who faced with it or can me follow by usefull link.
P.P.S. It's a pity that there is no button "Useless answer"

Materialized View Fast Refresh. Quick Question

Hi all
I have an assumption that I would love to have validated quickly if possible.
I am assuming that once a refresh operation is kicked off, any changes to the MLOG$ log table subsequent to the start of the refresh will not be picked up on that refresh cycle.
I'm basing this on my understanding of cursor consistency logic, but if someone could validate or refute the above then it would be much appreciated.
Many thanks
Chris

MV log entries are deleted when all registered materialized views that depend on them have refreshed.
For example: Suppose you have a table T and materialized views A and B that are fast-refresh and depend on the MV log for T.
On Monday you refresh MV A. The log entries are nto purged because B has not yet incorporated them.
On Tuesday you refresh MV B. At this point the log entries are purged up to the time on Monday that A was refreshed, because all MVs have processed them.
On Wednesday you refresh MV A again. At this point the log entries are purged up to the time on Tuesday that A was refreshed. etc.

ORA-12034: materialized view log on table younger than last refresh

I am getting this error while creating the materialized view.
This error seems to be refresh error.
but when i have a mat view log already and running script to create the materialized view how can that happen?

34MCA2K2, Google lover?
I confess perhaps I gave a little info.
View log was created before MV.
It was the first initial load.
No refresh failed.
No DDL.
No purge log.
Not warehouse.
There is no such behavior for MVs on another sites.
P.S. I ask help someone who knows what's wrong or who faced with it or can me follow by usefull link.
P.P.S. It's a pity that there is no button "Useless answer"

How to change Materialized View query?

Hi all,
sorry for this newbie question, but I'm not able to work out this matter...
How can I change the query used by a materialized view without dropping an recreate all, and using another user(SYS in my case)?
It looks like the command 'alter materialized view ...' does not allow this, am I wrong?
thanks a lot
aldo

You quick answer saved me a lot of other unsuccessfully searches.
thanks
aldo

Refresh/Update data in a materialized view

Hi,
I have question about the data in a materialized view and how it is refreshed. My mat view has all my dimension-ids and my (for my specialize needs) aggregated measures from my fact table. I used the mat view wizard to create my view - which works perfectly. But now I wonder if I have to create some sort of mapping(?) or some sort of trigger to refresh the data in the mat view. Or is the data automatically refreshed when I start my fact table mappings. I use OWB 11gR2
thx

MVs have properties for refresh - you an refresh based on schedules or when dependent data is committed or manually.
Cheers
David

How can I fast refresh the materialized view !!

I created a MV base on some tables in order to improve the querey speed.
but the mv I have created falied to refresh fast.
because there are two same table in the from clause:
jcdm jc1,jcdm jc2
create materialized view temp_mv
nologging
pctfree 0
storage (initial 2048k next 2048k pctincrease 0)
parallel
build immediate
refresh force
on demand
as
select
TAB_GSHX.rowid hx_rid,
TAB_GSHD.rowid hd_rid ,
JC1.rowid jc1_rid ,
JC2.rowid jc2_rid ,
YSHD_ID     HXID,
JC1.JCDM     QFD,
JC2.JCDM     JLD
FROM
TAB_GSHX,
TAB_GSHD,
jCDM JC1,
JCDM JC2
WHERE
YSHD_ID=YSHX_ID
AND YSHD_QFD=JC1.JBJC_ID
AND YSHD_JLD=JC2.JBJC_ID
AND TO_CHAR(YSHX_time,'YYYYMMDD')='20030101'
the column msgtxt of the table MV_CAPABILITIES_TABLE is :
"the multiple instances of the same table or view" and " one or more joins present in mv".
How can I succeed in fast refresh the above temp_mv!!!
thanks.

lianjun,
When you are using Oracle9i there is a procedure which can help you setup the materialized view. If some option isn't working it gives you hint why it doesn't work.
The procedure is dbms_mview.explain_mview.
Take a look at the documentation how to use it. (In the Oracle9i DWH guide the package is explained.)
Hope this helps
With kind regards,
Bas Roelands

Materialized View to run only once in a year...

Hi everybody...
I want to create a materialized view which will run only once in a year and specifically some minutes after 00:00 a.m. on new year's day,
so i created the following:
CREATE MATERIALIZED VIEW <mv_name>
BUILD IMMEDIATE
REFRESH START WITH TO_DATE('01/01/2007 00:15:00','DD/MM/RRRR HH24:MI:SS')
NEXT SYSDATE+366
I have two notes:
1) how to declare the refresh to be done the first new year's day after the day it'll be created , i mean not static date (01/01/2007)
2)some years are leap and some are not , so in order to run every new year's day how should i transform the above..????
3)is there any view which displays the next run of a materialized view..???
the view DBA_MV_REFRESH_TIMES displays the last refresh of mv's...
I use Oracle 10.2.0.1 on XP ...
Thanks , a lot
Simon

1).
use the expression that evaluates to next january first.
SQL> select sysdate, add_months(trunc(sysdate, 'yyyy'), 12) from dual ;
SYSDATE ADD_MONTHS(
19-JUN-2006 01-JAN-2007
1 row selected.
SQL>2). for this also use the same expression that will evaluate to the january first of the year after that.

Is it possible to refresh the table from a Materialized view

Hi,
Is it possible to update the underlying table on which a Materialized view is created when some changes in a Materialized view is done.Is this reverse compatibility possible in Materialized View?
Thanks in Advance,
V.Dennis

If you created the materialized view as UPDATEABLE then changes to it should automatically be relected in the underlying table. If this is not occurring I suggest you check the replication jobs. You probably have a stack of errors in DEFERROR.
Cheers, APC

The data of my materialized view....in the while

Hello
We have problems with materialized views
We have one wich re-build each a short period of time
¿Can i avoid the data to dissapear in the time process of refresh?
Is so annoing to our clients to see that "from time to time" the data just dissapear for one period of time -the time while the materialized view is refreshing-
Thank you in advance
Bruno. Madrid. Spain

> Is so annoing to our clients to see that "from time to time" the data just dissapear for
one period of time -the time while the materialized view is refreshing-
Have a similar problem. And dealing with large data volumes that makes the DELETE of the MV a very undesirable feature. Not as much a the resource footprint required, but the time it takes to do this - and the very tight processing windows that exist.
The solution is a self-rolled and very likely not ideal for most - but it works well enough for us in production.
No MV. Create a partition table. Create a staging table. Do a manual "full refresh" of the staging table (TRUNCATE and direct path INSERT). Follow this by a partition exchange with the partition table (no validation and including indexes). The result is that the data is replaced in the partitioned table within a second - no long running and expensive DELETE. End-users not effected by having a truncate pulling the data from beneath their reports.

Exporting data from a materialized view in Oracle 10g

Can anybody tell me how to export data to a remote server and import data in that remote server without using ftp utility. Actually I want to export the data from a materialized view to the remote server and import the same in the remote server.
If everything works well, I'll put the exporting and importing in a cronjob.
Please let me know how can I do that if that's possible .
Any reply would be appreciated.
Thanks.

Here is what I'm trying to do.
I created materialized views using multiple base tables in my local server and the base tables got populated using a long process.
Now I want to copy those data alone to some remote server since it doesn't have any base tables in it. For now, the remote server should depends on the localserver's data. I'm going to use the remote server's data for some testing purposes.
I know it is easy to create mat.views in the remote server but it doesn't have I don't want to do that now. I just want to copy the snapshots from my local server to the remote server.
Please let me know how to do that.
Thanks.

Issue with creation of a materialized view

Hi,
I have a SQL query that works fine.
But when I create a materialized view using the query, a few columns in the MV do not get populated at all.
What could be the issue here?
regards
Prem

Hi,
Thanks for the reply. Here is the code.
CREATE MATERIALIZED VIEW EDW.MV_OPPTY_ACTIVITY_AGG
TABLESPACE EDW_DIM_DAT
NOCACHE
LOGGING
NOCOMPRESS
NOPARALLEL
BUILD IMMEDIATE
REFRESH COMPLETE ON DEMAND
WITH PRIMARY KEY
AS
select
OPPTY_ID OPPTY_ID,
OPPORTUNITY_KEY OPPORTUNITY_KEY,
oppty_number oppty_number ,
SALES_CONSULTANT_HIST_KEY SALES_CONSULTANT_HIST_KEY ,
company_add_source_key company_add_source_key,
SALES_CONSULTANT_ID SALES_CONSULTANT_ID,
ACTIVITY_TYPE ACTIVITY_TYPE ,
activity_DATE activity_DATE ,
LAST_MODIFIED_DATE LAST_MODIFIED_DATE ,
CUSTOMER_FLAG CUSTOMER_FLAG,
SALES_EMPLOYEE_HIST_KEY,
milestone_KEY,
oppty_milestone_name_hist stage_name,
oppty_milestone_id_hist stage_id,
milestone_prob prob_to_close,
start_date oppty_start_date,
oppty_close_date oppty_close_date,
end_date oppty_end_date,
sum(DURATION) TOTAL_DURATION,
sum (CASE WHEN ACTIVITY_type IN ('CU14', 'CU15', 'CU16', 'CU17',
'CU18', 'CU19', 'CU20', 'CU21') THEN DURATION ELSE 0 END ) CQM_DURATION,
sum (CASE WHEN ACTIVITY_type = 'CU01' THEN DURATION ELSE 0 END ) TRADE_SEM_DURATION,
sum( CASE WHEN ACTIVITY_type = 'CU02' THEN DURATION ELSE 0 END ) RFP_RFI_DURATION,
sum( CASE WHEN ACTIVITY_type = 'CU03' THEN DURATION ELSE 0 END ) INFO_GATH_DURATION,
sum( CASE WHEN ACTIVITY_type = 'CU04' THEN DURATION ELSE 0 END ) PREP_DURATION,
sum( CASE WHEN ACTIVITY_type = 'CU05' THEN DURATION ELSE 0 END ) PRES_DEMO_DURATION,
sum( CASE WHEN ACTIVITY_type = 'CU06' THEN DURATION ELSE 0 END ) POC_DURATION,
sum ( CASE WHEN ACTIVITY_type = 'CU07' THEN DURATION ELSE 0 END ) PRE_CUST_SUPP_DURATION,
sum( CASE WHEN ACTIVITY_type = 'CU08' THEN DURATION ELSE 0 END ) POST_CUST_SUPP_DURATION,
sum( CASE WHEN ACTIVITY_type = 'CU09' THEN DURATION ELSE 0 END ) PARTNER_SUPP_DURATION,
sum( CASE WHEN ACTIVITY_type = 'CU10' THEN DURATION ELSE 0 END ) TRAVEL_DURATION,
sum( CASE WHEN ACTIVITY_type = 'CU11' THEN DURATION ELSE 0 END ) KEYCODES_DURATION,
sum( CASE WHEN ACTIVITY_type = 'CU12' THEN DURATION ELSE 0 END ) SI_SUPP_DURATION,
sum ( CASE WHEN ACTIVITY_type = 'CU13' THEN DURATION ELSE 0 END ) CHANNEL_SUPP_DURATION,
sum( CASE WHEN ACTIVITY_type = 'CU23' THEN DURATION ELSE 0 END ) MIGRATION_DURATION ,
max(LICENSE_USD) LICENSE_USD ,
MAX(LICENSE_LOCAL) LICENSE_LOCAL,
MAX(maintAINANCE_usd) maintAINANCE_usd,
MAX(maintAINANCE_LOCAL) maintAINANCE_LOCAL,
MAX(TRAINING_USD) training_usd,
MAX(TRAINING_LOCAL) training_LOCAL,
MAX(CONSULTING_USD) consulting_usd,
MAX(CONSULTING_LOCAL) consulting_LOCAL,
MAX(RENEWALS_USD) renewals_usd ,
MAX(RENEWAL_local) RENEWAL_local,
max(LOBANALYTICS2_LOCAL) epm_local,
max(LOBDATAINTEGRATION2_LOCAL) eim_local,
max(IDD_AMOUNT_LOCAL) idd_local,
max(ONDEMAND_AMOUNT_LOCAL) ondemand_local,
max(LOBANALYTICS2_usd) epm_usd,
max(LOBDATAINTEGRATION2_usd) eim_usd,
max(IDD_AMOUNT_usd) idd_usd,
max(ONDEMAND_AMOUNT_usd) ondemand_usd
FROM edw.sales_consulting_activity_fct t1 ,
select
o.oppty_id_number,
o.oppty_id,
O.OPPORTUNITY_KEY,
LICENSE_USD LICENSE_USD ,
LICENSE_LOCAL LICENSE_LOCAL,
o.FYM_USD maintAINANCE_usd,
o.FYM_LOCAL maintAINANCE_LOCAL,
o.TRAINING_USD training_usd,
o.TRAINING_LOCAL training_LOCAL,
o.CONSULTING_USD consulting_usd,
o.CONSULTING_LOCAL consulting_LOCAL,
o.RENEWAL_USD renewals_usd ,
o.RENEWAL_local RENEWAL_local ,
o.LOBANALYTICS2_LOCAL,
o.LOBANALYTICS2_usd,
o.LOBDATAINTEGRATION2_LOCAL,
o.IDD_AMOUNT_LOCAL,
o.ONDEMAND_AMOUNT_LOCAL,
o.LOBDATAINTEGRATION2_usd,
o.IDD_AMOUNT_usd,
o.ONDEMAND_AMOUNT_usd
from edw.opportunity_hist_fact o
where o.SOURCE_SYSTEM='SFDC'
and upper(status)='ACTIVE'
and o.last_modified_date = (select max(last_modified_date )from edw.opportunity_hist_fact o2 where o.opportunity_key = o2.opportunity_key))T2,
( Select activity_key,OPPTY_ID_NUMBER, MIL.milestone_KEY,MIL.milestone_name oppty_milestone_name_hist,milestone_id
oppty_milestone_id_hist, milestone_prob,start_date,oppty_close_date,end_date FROM
EDW.opportunity_hist_fact OPP,
edw.milestone MIL,
edw.sales_consulting_activity_fct act WHERE
ACTIVITY_DATE >=start_date (+) and activity_date <=opp.last_modified_date(+)
and OPP.OPPTY_ID_NUMBER (+) =act.OPPTY_NUMBER
and OPP.milestone_key =MIL.milestone_key(+) ) T3
where t1.oppty_NUMBER (+) =T2.OPPTY_ID_NUMBER
and t1.activity_key=t3.activity_key
--and oppty_number ='279749'
GROUP BY OPPTY_ID,
oppty_number,
OPPORTUNITY_KEY,
SALES_CONSULTANT_HIST_KEY ,
company_add_source_key,
SALES_CONSULTANT_ID,
SALES_EMPLOYEE_HIST_KEY,
ACTIVITY_TYPE ,
ACTIVITY_DATE ,
LAST_MODIFIED_DATE,
CUSTOMER_FLAG,
milestone_KEY,
oppty_milestone_name_hist,
oppty_milestone_id_hist,
milestone_prob,
start_date,
oppty_close_date,
end_date;
Regards,
Prem

LOV on Materialized View--Disco newbie

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