SQL & PL/SQL :: Mview Is Not Refreshing
Jun 4, 2012
I have a mview based on the database link. Mview created without the error and first time refrehment has been done properly in time, but after the first time it is not refreshing.
CREATE MATERIALIZED VIEW "SMSCHAT"."TBL_VOICECHAT_NEW1"
ORGANIZATION HEAP PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "SMSCHAT"
BUILD IMMEDIATE
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
[code].....
I have set the refreshment time for mview for 15 min with the following command
alter MATERIALIZED VIEW SMSCHAT.TBL_VOICECHAT_NEW1 REFRESH FAST START WITH sysdate+0 NEXT sysdate+(15/86400*60);
But now this mview is not refreshing and no jobs is showing in dba_jobs_running.
18:10:32 SQL> select LAST_DATE,LAST_SEC,THIS_DATE,THIS_SEC,NEXT_DATE,NEXT_SEC,TOTAL_TIME,BROKEN from dba_jobs where job=234;
LAST_DATE LAST_SEC THIS_DATE THIS_SEC NEXT_DATE NEXT_SEC TOTAL_TIME B
-------------------- -------- -------------------- -------- -------------------- -------- ---------- -
04-jun-2012 17:47:13 17:47:13 04-jun-2012 18:02:13 18:02:13 34 N
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Sep 14, 2011
I have create a mview using a dblink with the refresh difference of every 10min. Suddenly I check the mview refresh date and time it was not getting refreshed automatically at the time interval specified.
drop MATERIALIZED view log on afccv.tbl_voicechat;
drop MATERIALIZED VIEW SMSCHAT.TBL_VOICECHAT_NEW1 ;
CREATE MATERIALIZED VIEW SMSCHAT.TBL_VOICECHAT_NEW1
ORGANIZATION HEAP PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS NOLOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
[code]....
I am trying to find out what is the cause of not refreshing and also googled for the same. got some link also either not linked to same problem or not cleared.. Where should i checked regarding the error cause.
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Sep 11, 2013
I have 5 MViews that I want to refresh in two occassions, every sundays and at the 1st of the month. I created a Refresh Group for the weekly and that work fine. But when I tried to created the second Refresh Group for the monthly I get a "materialized view is already in a refresh group".
You can only have a materialized view in one refresh group? What options to I have to refresh it in different intervals?
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Feb 17, 2011
My MVIEW has a refresh rate (sysdate + 1 ) + 24/24 So how often it gets refreshed .
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Jan 11, 2011
I have created the snapshot as
CREATE SNAPSHOT EMPLOYEE_CRIS_MVIEW
PCTFREE 10
PCTUSED 40
MAXTRANS 255
TABLESPACE users
[code].........
The date format for the column join_dt is dd-mon-yyyy. But I want to modify the date format for this column as 'MM/DD/YYYY'.
For that I tried
ALTER snapshot EMPLOYEE_CRIS_MVIEW modify(TO_CHAR(join_dt,'MM/DD/YYYY'));
But I got the error
ERROR at line 1:
ORA-00902: invalid datatype
change the date format of the column of the snapshot with out dropping the snapshot.
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Dec 14, 2010
We have created this Mview in two schemas i.e.MRD and MRDSEIn MRD schema we are getting the date format is MM/DD/YYYY where as in MRDSE we are getting the format DD-MON-YYYY. why we are getting the difference in date format in two schemas.We are not modifying any thing.
Here is DATAENCRYPTION Package.
ENCRYPTDATA Function.
We are getting this date format issue only for the ENCRYPETED date columns in MRDSE.
MM/DD/YYYY
We are not getting this date format issue for the ENCRYPETED date columns in MRD.
DD-MON-YYYY
CODECREATE OR REPLACE VIEW emp_join_vw (
encr_emp_nr,
[code]...
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Sep 14, 2012
we have a routine which refreshes matrerilized view every day
dbms_mview.refresh('MVIEW_NAME>,'C') refresh ok but in user_ mviews always has status needing compile afterwarsd when compile isfine.
using 11.2.0.3
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Jan 28, 2010
hw can i check the refresh rate of existing Mview..
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Nov 23, 2011
I run a query, takes 20 minutes or so, I traced it and can see no more then 20-30 mb of temp space required in the plan.
I developed it for use in a materialized view, however when I create the mview with the sql, the temp space required grows until it maxxes out. I increased the existing 10gb to 50gb but still maxxed out. Took the SQL out, reran it, ran in 20 minutes barely scratching the temp, I ran a "create table as <select>" and same behaviour as the SQL, barely touched the temp as per the plan. So the temp space blolwing is unique to the mview create.
Im working with mviews years on several sites and have never seen this.
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Apr 4, 2011
I created a mv for one of the partitioned tables but on viewing the mv capabilities it still shows PCT is set to 'N'.
create materialized view MV_summary_SEC
refresh fast
start with sysdate
nEXT SYSDATE + 1/24
enable query rewrite as
[code]....
If i remove the sub query and create the mview like this,then PCT is enabled.
create materialized view MV_summary_SEC
refresh fast
start with sysdate
nEXT SYSDATE + 1/24
enable query rewrite as
select PERIOD , SUM(SUM_WEB_HITS)
from summary ,date_table
where PERIOD >= DATE_TABLE.CUR_DATE
group by PERIOD
Is it simply because oracle doesn't support PCT if the definition contains subqueries ?
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Sep 16, 2012
while trying to refresh an materialized view.. oracle throws cannot extend temp table space error.. while starting to refresh mivew temp table space is empty but once refresh started temp tablespace is growing and throws cannot extend temp tablespace error,,,size of temp tablesapce is 200GB..when i monter the session it does an sort event of an table(ammt_pol_ag_comm).. only 4% of this sort event is completing after that it throws error bu occupying the entire 200 GB tabespace.. MView script below..
CREATE materialized VIEW ammv_agent_pol_persis_emas
NoLogging
Parallel 10
Build Immediate
Refresh on demand
With Primary Key
AS
[code]...
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Apr 27, 2010
Is it possible to hold the data from select statement without temp table or materialized view or view in oracle?
because my DBA does not give access to create temp table.but we are selecting the records from 3 different sql statement.
Example: inserting in temp table
a) insert into temp select empno,ename,sal from emp where sal>4000
b) insert into temp select empno,ename,sal from emp where dept=40
c) insert into temp select empno,ename,sal from emp where comm is null
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Jul 10, 2012
I am often tasked with refreshing schema's from one DB to another.The first thing I need to check is the space the objects take up in the source DB. SQL statement that prints the size of the following objects
('SEQUENCE','SYNONYM','TABLE','INDEX','PACKAGE','PACKAGE BODY','DATABASE LINK','VIEW','PROCEDURE')
which is totaled by owner, TS.. Or the SQL can just take in an owner. I am looking for an output similiar to this:
TS name, owner, object_name, object_type MB SIZE
users xxx t1 table 100
users xxx t2 table 200
sum of tables 300
[code]....
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Jan 25, 2011
I am confused to see one materialized view is not refreshing automatically, whereas the same thing I can do manually.
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May 3, 2010
Am getting an error while trying to refresh a Writeable Materialized view using the following statement -
exec dbms_mview.refresh('schema_name.MV_name','C')
Error:-
ORA-02448: constraint does not exist
ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2254
ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2460
ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2429
ORA-06512: at line 1
The Primary Key Constraint on the base table/MV is deferrable, the base table and the MV are in different schemas and the user trying to refresh the MV has an explicit grant on "ALTER ANY MATERILIZED VIEW" and "SELECT ANY TABLE" through a role.
Its refreshing successfully when I make the PK constraint (Base Table, MV) NOT DEFERRABLE (or) when I explicitly grant "SELECT ANY TABLE" to the user trying to refresh the MV.
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Nov 29, 2010
Simplifying the data structure that my problem concern, let's say there are two materialized views between whose data there's a one-to-many relationship [the relationship can be logical without a need of creating any foreing keys].
The data should be as actual as possible respecting the content of the master tables, let's say it shoul be refreshed every 5 minutes.
As far as I know, the jobs related to each snapshot, even if they have a START WITH and NEXT parameter set to the same value, work independently...So: what would be the best manner to synchronize the jobs so as to make sure the data of both snapshots are coherent?
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Apr 6, 2010
I have a database schema with a Materialized View (MV) that updates a products table shown on a website. This schema was recently imported to an 11g database from 8i, but since this import I have been unable to refresh my schema's Materialized View.
The MV_PRODUCT_MASTER Materialized View attaches price data to product data that is stored in a normal WEB_PRODUCT table, and create an MV table as a result. The output MV table is what the website pulls data from to display to the site users. Since it is an MV table, this table cannot be edited directly. In order to change, say, a product description, I need to alter the description field in WEB_PRODUCT and manually refresh the MV_PRODUCT_MASTER table. Only through the refresh will the upstream edits appear in the MV_PRODUCT_MASTER table and be visible on the website.
In my old 7.6.0.11 copy of TOAD, I could manually refresh these MVs easily, by opening the "Snapshots" tab, right clicking on the MV I wanted to refresh and selecting the "Refresh" option. Since the schema was imported to 11g, I have been using the Oracle SQLDeveloper tool to manage the schema. SQLDeveloper doesn't have a clear method for manually refreshing an MV, or else the method I am using isn't working.
If I right click on the MV_PRODUCT_MASTER Materialized View object, and choose "Other Actions", I see the following choices:
Shrink Materialized View
Compile Materialized View
Force Materialized View Refresh
Rebuild Materialized View
I assumed that -Force Materialized View Refresh- was the right choice, and chose that. This option displays the SQL:
alter materialized view "WEBADMIN"."MV_PRODUCT_MASTER" consider fresh
When I apply this, I get the message: Materialized view - MV_PRODUCT_MASTER - has been set torefreshed. However, no changes appear in the MV output table. i.e. if I make a specific change to a row in the WEB_PRODUCT table, the change is not being carried into the MV_PRODUCT_MASTER table, so that indicated that the refresh is not actually happening. The MV table appears to believe it is being refreshed:
REWRITE_CAPABILITY GENERAL
REFRESH_MODE DEMAND
REFRESH_METHOD COMPLETE
BUILD_MODE IMMEDIATE
FAST_REFRESHABLE NO
LAST_REFRESH_TYPE COMPLETE
LAST_REFRESH_DATE 06-APR-10
STALENESS UNKNOWN
But it isn't showing any changes.What am I doing wrong? Is there a plain SQL statement I can run in order to run these refreshes, instead of using the SQLDeveloper GUI?
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Nov 7, 2013
I support an APEX app that has one workspace for Development and one for the live Production application. When I originally created the Dev instance I was able to copy tables and data by granting select privileges between the two workspaces (I did this one table at a time).
The development workspace data needs to be refreshed from production since it's been a long time since the initial refresh and is very out of date. I would like to do a couple things:
1) execute SQL to compare the tables in the two workspaces to ensure they're structurally identical
2) execute SQL to truncate Dev tables and refresh from Prod Is there a way to do this?
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May 29, 2013
I would like to create a process that allows me to move from record to record without refreshing a whole page. Specifically, I'd like to use a tree object that allows the user to select items and then have the details for that item show up on the right side of the page. Is there a way to do this without doing a complete page refresh?
So far I've tried two different on-demand processes:
- first I created an "Automatic Row Fetch", but I read on the board that this actually won't work as an on-demand process;
- I also tried a PL/SQL process that sets the various variables (e.g. ":P7_NAME") based on a query. This updated the session state, but it didn't refresh the fields on the page. Is there a way to trigger this refresh?
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Nov 27, 2012
I have a list of materialized views in schema A. I want to create a refresh group and then refresh it from Schema B (Dynamically-run time based on some criteria). What Grants are necessary on schema B in order for it to be able to create and refresh the groups on Materialized views in Schema A.
I know that one of the Options is to, GRANT ALTER ANY MATERIALIZED VIEW as a SYS user. But I do not have any SYS privileges.
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Oct 15, 2011
We have some materialized views in our environment which refreshes after every 1 hour. In the same environment, we have some big processes and we do not want the performance of these big processes to get affected because of refreshing these materialized views.
if there is a way to pause the refreshing of materialized views before running the big processes and later after the big processes are completed, then resume the refreshing of the materialized views?
One way I can think of is to drop the materialized views and create the materialized views back.
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Feb 14, 2012
I have created a MV on Oracle 10gR2 using dblink. Source database is AS400 DB2.MV script:
CREATE MATERIALIZED VIEW MV_BU
TABLESPACE TB_XXX
PCTUSED 0
PCTFREE 10
INITRANS 2
MAXTRANS 255
STORAGE (
[code]...
Above query should be refreshing the data every minute but I realized that its not doing it.
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Apr 21, 2010
the importance of refreshing the stale statistics in oracle database and also how often we should do this?
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Dec 17, 2012
I have a Multi layer Mviews and Views which i use to load a table. There are three base level Mview which is accessed by 4 views ... which are in turn accessed by a view which is used to load a table.
Before the insert called for the table .. the base mviews are refreshed.
I get the "ORA-01410 Invalid Rowid" error while inserting in to the table and while refreshing the mviews. They don't occur every time and not together as well.
The Mviews contains table joins and the top level views which accessing these mviews does aggregation. Below is the mview query for one of the mview.
SELECT DISTINCT c.fiscal_time_id,
a.product_group_id,
a.allocation_driver_id,
a.hyp_entity_id,
d.business_division_alt_id
[code].....
The Refresh method for the mview is Force.
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Jan 24, 2013
I am trying to refresh a report with dynamic action. And getting the following errors:
{"dialog":{"uv":true,"row":[{"V":"Widget Failure
ORA-20876: Stop APEX Engine,
classic_report"}]}}
I have identified the problematic part. I have a multi-select select list and my query goes like this:
select o.order_id, s.salesrep_name
from ml_orders o, ml_order_salesrep_mapping m
where m.order_id(+) = o.order_Id
and case when :P22_SALESREP is null then 1
[code]...
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Nov 14, 2013
I am not able to refresh tabular form region on close of the modal page.
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Aug 17, 2012
I need to refresh my main page after closing the popup page displayed by skillbuilder plugin
apex 4.1.0/Oracle 11g Ent.
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Mar 26, 2013
I'm using Apex 4.2. On click of a button, I refresh 2 Standard Region Reports with a Dynamic Action. This dynamic action has been working without problems for WEEKS and all of a sudden i'm getting the ORA-20876: Stop APEX Engine error when I click the button.
In the dynamic action, I removed the refresh of the second report and now the error does not occur. If I add the second refresh action back in, it throws the above error. I've even tried making the second report identical to the first and the refresh action fails. why this is failing on the second refresh action since the second report & region is IDENTICAL to the first report now.
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Oct 14, 2008
I have 8 databases in a multi master replication. I want to refresh the tables in the replication.
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