CREATE A CONNECTION MATERIALIZED VIEW / SNAPSHOT LOG
HelloIs there a difference between create log materialized view on and instant on creat.
Did some research on Google, who discovered: a snapshot log is a related table
the main table of a capture instant and is used for updating snapshots of the Greenbelt master.
The materialized view log is a table associated with the master table of a materialized view. Appear to be the same.
Moreover, import these tables? My database will work normally without the view log.
Kind regards
Becks
There is no difference.
The so-called "Snapshot Logs" pre Oracle8i were called "Materialized View Logs" for Oracle8i.
Search the syntax of SQL to CREATE MATERIALIZED VIEW LOG.
Hemant K Collette
Tags: Database
Similar Questions
-
Is it possible to create an empty materialized view?
Hi all!
I am creating a complex materialized view, but actually the query returns no data.
It seems that it is not accepted by Oracle 10 g, is it true? I've not found anything research literature.
The error I get is 'No more data to read shooting' and the connection to the DB is thus broken.
Maybe you have ideas about the causes of this behavior?
Thank you!Super multi-post forum
Published by: Tubby on December 28, 2010 20:30
-
is this allowed? materialized view the log for the remote database (via db lin
: Hi guys.
try to do
create materialized view log on user@xxx with sequence, rowid (col1, col2), including the new values;
where xxx is a remote db link
------
had this error
ORA-00949 - illegal reference to the remote database
Google but do not know whelther this error is an internal error or not allowed for mviews characteristic.
help pleaase!
Rgds,
Noobdo you mean that the materialized log should be created in the same location where the main table
YES. Of course, it must be there! Any update to the main table should also update the MV log that is created against it!
Hemant K Collette
-
Error ORA-01115 creating the materialized view
Hi friends,
When I create a materialized view it by throwing some error
CREATE THE PNR_RES_MV MATERIALIZED VIEW
TABLESPACE FAS
NOCACHE
LOGGING
NOCOMPRESS
NOPARALLEL
IMMEDIATE CONSTRUCTION
REFRESH THE STRENGTH TO DEMAND
WITH THE PRIMARY KEY
AS
SELECT C_CREATION_DATE, C_PNR, B.CARRIER_CD1, B.CARRIER_CD2, B.CURRENT_STATUS_CD, A.CANCELLED_IND, A.BOOKING_OFFC_NMBR,-, B.LEG_NMBR, C_PAX_NMBR
COUNT (CASE WHEN TRIM (B.CURRENT_STATUS_CD) = "HK" AND (TRIM (C_CHANGE_OR_CANCELL_IND) = "OR C_CHANGE_OR_CANCELL_IND IS NULL) THEN 1 OTHER TRAILING NULL) CONFIRMED_COUNT,.
COUNT (CASE WHEN (B.CURRENT_STATUS_CD) TRIM = "HK" AND (TRIM (C_CHANGE_OR_CANCELL_IND) = "or C_CHANGE_OR_CANCELL_IND IS NULL) null THEN 1 OTHER END) cancELLED_COUNT
OF PNR_RES_LEG_PAX_MV B, PNR_RES HAS
WHERE A.PNR = B.PNR
AND a.CREATION_DATE = b.CREATION_DATE
- and A.BOOKING_OFFC_NMBR = '1F'
- AND C_PNR = 'XE76V. '
AND A.FILE_UPDATE_DATE. A.UPDATE_DATE IN (SELECT MAX (D.FILE_UPDATE_DATE |)) (UPDATE_DATE) OF PNR_RES D WHERE D.PNR = B.PNR AND D.CREATION_DATE = B.CREATION_DATE)
GROUP OF C_CREATION_DATE, C_PNR, B.CARRIER_CD1, B.CARRIER_CD2, B.CURRENT_STATUS_CD, A.CANCELLED_IND, A.BOOKING_OFFC_NMBR;When executing it it gives this error
ORA-01115: reading block IO file error 4 (block # 63757)
ORA-01110: data file 4: ' D:\APP\IGT\ORADATA\ORCL\USERS01. DBF'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read the file
S/O-error: (27 OS) the drive cannot find the sector requested.And I checked through RMAN
RMAN > validate the audit logic datafile 4;
From post 11 March 14
using the control file of the target instead of recovery catalog database
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID = 127 type device = DISK
channel ORA_DISK_1: starting from the data file validation
channel ORA_DISK_1: datafile (s) for specification validation
Enter a number of file datafile = 00004 name = D:\APP\IGT\ORADATA\ORCL\USERS01. DBF
RMAN-00571: ===========================================================
RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =.
RMAN-00571: ===========================================================
RMAN-03009: failure to validate the command channel ORA_DISK_1 11/03/2014 13:0
04:12
ORA-19501: read error on the file 'D:\APP\IGT\ORADATA\ORCL\USERS01. DBF', block numbe
r 63745 (block size = 8192)
ORA-27070: async read/write failed
OSD-04016: error queuing an asynchronous i/o request.
S/O-error: (27 OS) the drive cannot find the sector requested.Please suggest me what to do it is a mistake to associate related database or OS. DB version is - 11 GR 2
Kind regards
Arya
This is the error message that you should focus:
> O/S-error: (27 OS) the drive cannot find the sector requested.
Run disk checker utilities, eventually the file system is damaged.
Hemant K Collette
-
Creating a discount on commit Materialized view
Hello
I am trying to create a refresh materialized view validation so that whenever I run followed by DML commit on Master he table should get quickly reflect in my view materialized.
I gave SELECT on table privilege to the user where this point of view will be created
The master:
GRANT SELECT ON HR. EMPLOYEES AT SCOTT.
Scott:
Scott.hremp CREATE MATERIALIZED VIEW
COOL OFF QUICKLY ON COMMIT
AS
SELECT * FROM HR. EMPLOYEES;
ERROR on line 4:
ORA-01031: insufficient privileges
Then I Grant all on the table EMPLOYEES at SCOTT.
GRANT ALL ON hr. EMPLOYEES AT SCOTT;
Then got following error when creating view materilized:
SQL > CREATE MATERIALIZED VIEW scott.hremp
2 QUICK REFRESH YOU COMMIT
3 AS
4. SELECT * HR. EMPLOYEES;
SELECT * FROM HR. EMPLOYEES
*
ERROR on line 4:
ORA-23413: table 'HR '. "" EMPLOYEES "do not have a materialized view log
I create materialized view Master journal:
SQL > CREATE MATERIALISEE NEWSPAPER VIEW on human resources. EMPLOYEES;
Materialized view log that is created.
Even after this, that I'm not able to create not Exist Error in materialized view Table and now:
SQL > CREATE MATERIALIZED VIEW scott.hremp
2 QUICK REFRESH YOU COMMIT
3 AS
4. SELECT * HR. EMPLOYEES;
SELECT * FROM HR. EMPLOYEES
*
ERROR on line 4:
ORA-12018: following error occurred during the generation of code for 'SCOTT '. "" HREMP ".
ORA-00942: table or view does not exist
Kindly guide me.
Also, I want to know why I needed to GRANT ALL HR for the creation of this point of view, materialized.
You also need a (selection) grant on the MV newspaper created for master during an attempt to build a quickly updatable MV.
ISSUE: Permissions problem making fast refresh
See you soon,.
-
How to create a complex organization Index Materialized View example
Hello
I have a database 11g that I'm trying to create a complex Materialized View I would make organization Index? How can I specify that I want for a primary key?
CREATE THE RCS_STG MATERIALIZED VIEW. MV_NEXT_HOP_iot
INDEX OF THE ORGANIZATION
AS
SELECT r1.resource_key, resource_key2, r2.resource_full_path_name, device_name, r2.resource_key, device_model,.
service_telephone_number, service_package_name, telephone_number.telephone_number_key, c1.created_on
OF network_resource r1 PARTITION (network_resource_subinterface).
connection c1,
network_resource r2 PARTITION (network_resource_subinterface),
device d1,
tn_network_resource,
telephone_number
WHERE r1.resource_key = c1.resource1_key
AND c1.resource2_key = r2.resource_key
AND d1.device_key = r2.device_key
AND tn_network_resource.resource_key (+) = r2.resource_key
AND telephone_number.telephone_number_key (+) = tn_network_resource.telephone_number_key
UNION ALL
SELECT r2.resource_key, resource_key2, r1.resource_full_path_name, device_name, r1.resource_key, device_model,.
service_telephone_number, service_package_name, telephone_number.telephone_number_key, c1.created_on
OF network_resource r1 PARTITION (network_resource_subinterface).
connection c1,
network_resource r2 PARTITION (network_resource_subinterface),
device d1,
tn_network_resource,
telephone_number
WHERE r1.resource_key = c1.resource1_key
AND c1.resource2_key = r2.resource_key
AND d1.device_key = r1.device_key
AND tn_network_resource.resource_key (+) = r1.resource_key
AND telephone_number.telephone_number_key (+) = tn_network_resource.telephone_number_key
/
I get an error ORA-25175: no PRIMARY KEY constraint found
I want to say resource_key, resource_key2, and service_telephone_number as my primary key?user12002352 wrote:
I'm not sure I understand your example.Should I do a create table iot_example in select * from 'my query above.
Would not you other placed in front of the game that you are now (unless you can ETG and specify the index of the Organization, which I think is not the case).
You know the query and the types of data required for the materialized view, you try to create it now. You know you want it impose a primary key constraint.
Take this knowledge and create the table you normally create a table (columns, constraints, etc...) as I showed in my example. And then post your order to create materialized view as you now except use the syntax I have demonstrated to make use of the existing index organized table.
-
Create materialized view at the trigger.
Hello
I use version below:
Oracle Database 11 g Enterprise Edition Release 11.2.0.1.0 - 64 bit Production
PL/SQL Release 11.2.0.1.0 - Production
I created a materialized view query below:
CREATE THE FSG1_FUND000 MATERIALIZED VIEW
PCTUSED, PCTFREE 5 70
Users TABLESPACE
STORAGE (INITIAL 500K NEXT 500K)
Refresh a start fast with (sysdate) next (sysdate + (1 / 1440))
WITH rowid
AS
SELECT * FROM ABNDEV_T24. FSG1_FUND000@abndev;
This Mview if any insert or update only (WITHOUT DELETING) are coming which should be copy to another table. But in mView trigger does not work.
So pls advice me no alternative.
Querys trigger:
create or replace trigger trg_dummy
after insert or update on FSG1_FUND000
for each line
Start
If the insertion
insert into FSG1_FUND001 (RECID, XMLRECORD) values (: new.) RECID,: new. XMLRECORD);
elsif update then
insert into FSG1_FUND001 (RECID, XMLRECORD) values (: new.) RECID,: new. XMLRECORD);
end if;
end;
/
Kind regards
Villa
Hello
I learned and referred website as much as we can not able to create a trigger in MView (sorry we create trigger but none use of creation because in view no insert and update happened). So I drop completely the materialized view concepts and relaxation.
Instead of, I have using the procedure to insert records in a table and then I created one by dbms_scheduler job.
This discussion will be useful for any future reference.
-procedure-
create or replace procedure p2
as
Start
INSERT / * + APPEND * / INTO FSG1_FUND000 SELECT * FROM FSG1_FUND000@remote;
End; BluShadow
/
-----------------job--------------------
Begin
DBMS_SCHEDULER. () CREATE_JOB
job_name-online "JOB4."
job_type-online "PLSQL_BLOCK."
JOB_ACTION => ' BEGIN p2; END;',
start_date => SYSDATE,
repeat_interval => ' FREQ = MINUTELY; INTERVAL = 5;',
End_date => NULL,
-Online TRUE, enabled
comments => "Inserting a record in a table");
end;
/
-
extracting data from the CLOB using materialized views
Hello
We have xml data from clob which I have a requirement to extract (~ 50 attributes) on a daily basis, so we decided to use materialized views with refreshes full (open good suggestions)
A small snippet of code
CREATE THE MWMRPT MATERIALIZED VIEW. TASK_INBOUND
IMMEDIATE CONSTRUCTION
FULL REFRESH ON DEMAND
WITH ROWID
AS
SELECT M.TASK_ID, M.BO_STATUS_CD, b.*
OF CISADM. M1_TASK m,
XMLTABLE (' / a ' XMLPARSE PASSING ())
CONTENT '< a > | M.BO_DATA_AREA | "< /a >."
) COLUMNS
serviceDeliverySiteId varchar2 (15) PATH
"cmPCGeneralInfo/serviceDeliverySiteId"
serviceSequenceId varchar2 (3) PATH "cmPCGeneralInfo/serviceSequenceId"
completedByAssignmentId varchar2 (50) PATH "completedByAssignmentId."
Cust_id varchar2 (10) PATH "cmPCCustomerInformation/customerId,"
ACCT_SEQ varchar2 (5) PATH "customerInformation/accountId"
AGRMT_SEQ varchar2 (5) PATH cmPCCustomerAgreement/agreementId"."
COLL_SEQ varchar2 (5) PATH "cmPCGeneralInfo/accountCollectionSeq"
REVENUE_CLASS varchar2 (10) PATH "cmPCCustomerAgreement/revenueClassCode"
REQUESTED_BY varchar2 (50) PATH ' attributes customerInformation/contactName',...~50
This ddl ran > 20 hours and no materialized view created. There are certain limits that we have
- Cannot create a materialized view log
- cannot change the source as its defined provider table
- cannot do an ETL
DB is 11g R2
Any ideas/suggestions are very much appreciated
I explored a similar approach, using the following test case.
It creates a table "MASTER_TABLE" containing 20,000 lines and a CLOB containing an XML fragment like this:
09HOLVUF3T6VX5QUN8UBV9BRW3FHRB9JFO4TSV79R6J87QWVGN UUL47WDW6C63YIIBOP1X4FEEJ2Z7NCR9BDFHGSLA5YZ5SAH8Y8 O1BU1EXLBU945HQLLFB3LUO03XPWMHBN8Y7SO8YRCQXRSWKKL4 ...
1HT88050QIGOPGUHGS9RKK54YP7W6OOI6NXVM107GM47R5LUNC 9FJ1JZ615EOUIX6EKBIVOWFDYCPQZM2HBQQ8HDP3ABVJ5N1OJA then an intermediate table "MASTER_TABLE_XML" with the same columns with the exception of the CLOB which turns into XMLType and finally a MVIEW:
SQL > create table master_table like
2. Select level as id
3, cast ('ROW' | to_char (Level) as varchar2 (30)) as the name
4 , (
5. Select xmlserialize (content
XMLAGG 6)
7 xmlelement (evalname ('ThisIsElement' | to_char (Level)), dbms_random.string ('X', 50))
8 )
9 as clob dash
10 )
11 double
12 connect by level<=>=>
(13) as xmlcontent
14 double
15 connect by level<= 20000="">=>
Table created.
SQL > call dbms_stats.gather_table_stats (user, 'MASTER_TABLE');
Calls made.
SQL > create table (master_table_xml)
Identification number 2
3, name varchar2 (30)
4, xmlcontent xmltype
5)
binary xmltype 6 securefile XML column xmlcontent store
7;
Table created.
SQL > create materialized view master_table_mv
2 build postponed
full 3 Refresh on demand
4, as
5. Select t.id
6, t.nom
7 , x.*
master_table_xml 8 t
9, xmltable ('/ r' in passing t.xmlcontent)
10 columns
11 path of varchar2 (50) ThisIsElement1 'ThisIsElement1 '.
12, path of varchar2 (50) ThisIsElement2 'ThisIsElement2 '.
13, path of varchar2 (50) ThisIsElement3 'ThisIsElement3 '.
14, path of varchar2 (50) ThisIsElement4 'ThisIsElement4 '.
15 road of varchar2 (50) ThisIsElement5 'ThisIsElement5 '.
16, road of varchar2 (50) ThisIsElement6 'ThisIsElement6 '.
17 road of varchar2 (50) ThisIsElement7 'ThisIsElement7 '.
18 road of varchar2 (50) ThisIsElement8 'ThisIsElement8 '.
19 road to varchar2 (50) ThisIsElement9 'ThisIsElement9 '.
20, path of varchar2 (50) ThisIsElement10 'ThisIsElement10 '.
21, road to varchar2 (50) ThisIsElement11 'ThisIsElement11 '.
22 road of varchar2 (50) ThisIsElement12 'ThisIsElement12 '.
23 road of varchar2 (50) ThisIsElement13 'ThisIsElement13 '.
24, path of varchar2 (50) ThisIsElement14 'ThisIsElement14 '.
25 road of varchar2 (50) ThisIsElement15 'ThisIsElement15 '.
26, path of varchar2 (50) ThisIsElement16 'ThisIsElement16 '.
27, way to varchar2 (50) ThisIsElement17 'ThisIsElement17 '.
28 road of varchar2 (50) ThisIsElement18 'ThisIsElement18 '.
29 road of varchar2 (50) ThisIsElement19 'ThisIsElement19 '.
30, path of varchar2 (50) ThisIsElement20 'ThisIsElement20 '.
31, path of varchar2 (50) ThisIsElement21 'ThisIsElement21 '.
32 road of varchar2 (50) ThisIsElement22 'ThisIsElement22 '.
33, path of varchar2 (50) ThisIsElement23 'ThisIsElement23 '.
34 road of varchar2 (50) ThisIsElement24 'ThisIsElement24 '.
35 road of varchar2 (50) ThisIsElement25 'ThisIsElement25 '.
36, road to varchar2 (50) ThisIsElement26 'ThisIsElement26 '.
37, path of varchar2 (50) ThisIsElement27 'ThisIsElement27 '.
38, path of varchar2 (50) ThisIsElement28 'ThisIsElement28 '.
39, path of varchar2 (50) ThisIsElement29 'ThisIsElement29 '.
40, road of varchar2 (50) ThisIsElement30 'ThisIsElement30 '.
41 road of varchar2 (50) ThisIsElement31 'ThisIsElement31 '.
42, path of varchar2 (50) ThisIsElement32 'ThisIsElement32 '.
43, road to varchar2 (50) ThisIsElement33 'ThisIsElement33 '.
44, path of varchar2 (50) ThisIsElement34 'ThisIsElement34 '.
45, path of varchar2 (50) ThisIsElement35 'ThisIsElement35 '.
46, path of varchar2 (50) ThisIsElement36 'ThisIsElement36 '.
47, path of varchar2 (50) ThisIsElement37 'ThisIsElement37 '.
48, path of varchar2 (50) ThisIsElement38 'ThisIsElement38 '.
49, path of varchar2 (50) ThisIsElement39 'ThisIsElement39 '.
50 road of varchar2 (50) ThisIsElement40 'ThisIsElement40 '.
51, path of varchar2 (50) ThisIsElement41 'ThisIsElement41 '.
52, path of varchar2 (50) ThisIsElement42 'ThisIsElement42 '.
53, path of varchar2 (50) ThisIsElement43 'ThisIsElement43 '.
54, path of varchar2 (50) ThisIsElement44 'ThisIsElement44 '.
55 road of varchar2 (50) ThisIsElement45 'ThisIsElement45 '.
56, path of varchar2 (50) ThisIsElement46 'ThisIsElement46 '.
57, path of varchar2 (50) ThisIsElement47 'ThisIsElement47 '.
58 road of varchar2 (50) ThisIsElement48 'ThisIsElement48 '.
59 road of varchar2 (50) ThisIsElement49 'ThisIsElement49 '.
60 road of varchar2 (50) ThisIsElement50 'ThisIsElement50 '.
(61) x;
Materialized view created.
The discount is then performed in two steps:
- INSERT INTO master_table_xml
- Refresh the MVIEW
(Note: as we insert in an XMLType column, we need an XML (only root) document this time)
SQL > set timing on
SQL >
SQL > truncate table master_table_xml;
Table truncated.
Elapsed time: 00:00:00.27
SQL >
SQL > insert into master_table_xml
2. select id
3, name
4, xmlparse (document '
' |) XmlContent |' ')5 master_table;
20000 rows created.
Elapsed time: 00:04:38.72
SQL >
SQL > call dbms_mview.refresh ('MASTER_TABLE_MV');
Calls made.
Elapsed time: 00:00:22.42
SQL >
SQL > select count (*) in the master_table_mv;
COUNT (*)
----------
20000
Elapsed time: 00:00:01.38
SQL > truncate table master_table_xml;
Table truncated.
Elapsed time: 00:00:00.41
-
Moving all the newspapers and Materialized View at the schema level using the data pump in
Hi Experts,
Please help me on how I can exp/imp all materialized views andMV logs (as are some MVs) only the full scheme of other databases. I want to exclude everything else.
Concerning
-Samar-Using DBMS_METADATA. Create the following SQL script:
SET FEEDBACK OFF SET SERVEROUTPUT ON FORMAT WORD_WRAPPED SET TERMOUT OFF SPOOL C:\TEMP\MVIEW.SQL DECLARE CURSOR V_MLOG_CUR IS SELECT DBMS_METADATA.GET_DDL('MATERIALIZED_VIEW_LOG',LOG_TABLE) DDL FROM USER_MVIEW_LOGS; CURSOR V_MVIEW_CUR IS SELECT DBMS_METADATA.GET_DDL('MATERIALIZED_VIEW',MVIEW_NAME) DDL FROM USER_MVIEWS; BEGIN DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,'SQLTERMINATOR',TRUE); FOR V_REC IN V_MLOG_CUR LOOP DBMS_OUTPUT.PUT_LINE(V_REC.DDL); END LOOP; FOR V_REC IN V_MVIEW_CUR LOOP DBMS_OUTPUT.PUT_LINE(V_REC.DDL); END LOOP; END; / SPOOL OFF
In my case the script is saved as C:\TEMP\MVIEW_GEN. SQL. Now I will create a journal mview and mview in schema SCOTT and run the script above:
SQL> CREATE MATERIALIZED VIEW LOG ON EMP 2 / Materialized view log created. SQL> CREATE MATERIALIZED VIEW EMP_MV 2 AS SELECT * FROM EMP 3 / Materialized view created. SQL> @C:\TEMP\MVIEW_GEN SQL>
Run the C:\TEMP\MVIEW_GEN script. SQL generated a C:\TEMP\MVIEW queue. SQL:
CREATE MATERIALIZED VIEW LOG ON "SCOTT"."EMP" PCTFREE 10 PCTUSED 30 INITRANS 1 MAXTRANS 255 LOGGING STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE "USERS" WITH PRIMARY KEY EXCLUDING NEW VALUES; CREATE MATERIALIZED VIEW "SCOTT"."EMP_MV" ("EMPNO", "ENAME", "JOB", "MGR", "HIREDATE", "SAL", "COMM", "DEPTNO") ORGANIZATION HEAP PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE "USERS" BUILD IMMEDIATE USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE "USERS" REFRESH FORCE ON DEMAND WITH PRIMARY KEY USING DEFAULT LOCAL ROLLBACK SEGMENT USING ENFORCED CONSTRAINTS DISABLE QUERY REWRITE AS SELECT "EMP"."EMPNO" "EMPNO","EMP"."ENAME" "ENAME","EMP"."JOB" "JOB","EMP"."MGR" "MGR","EMP"."HIREDATE" "HIREDATE","EMP"."SAL" "SAL","EMP"."COMM" "COMM","EMP"."DEPTNO" "DEPTNO" FROM "EMP" "EMP";
Now, you can run this on the database. You may need to adjust the tablespace and storage clauses. Or you can add more DBMS_METADATA. SET_TRANSFORM_PARAM calls to C:\TEMP\MVIEW_GEN. SQL to force DBMS_METADATA not to include the tablespace or / and the terms of storage.
SY.
-
How to refres MATERIALIZED view
Guy
We are on the oracle9i database, I created Materialized view and wanted to refres seen helping of below mentioned the package but does not run.
CREATE MATERIALIZED VIEW REFRESH DEPARTMENT_WISE_SALARY FORCE ON REQUEST TO
Select D.DEPTNO, D.DNAME, SUM (E.SAL) SALARY OF EMP E, DEPT. D
WHERE D.DEPTNO = E.DEPTNO
D.DEPTNO GROUP, D.DNAME
Run DBMS_REFRESH. REFRESH ('DEPARTMENT_WISE_SALARY');
But it does not...
Please any ideaHello
the user this command... Hope, it will help you...: D
Means of materialized view snapshot
c means completeexec dbms_snapshot.refresh('
','C'); concerning
KPublished by: KPR on April 12, 2011 05:24
-
Questions on the tables of materialized views and MV newspaper
Hi all
Have some questions about Materialized View.
(1) once the materialized view reads the records from the table MLOG, reviews the MLOG get purged. fix? or is that not the case? In some cases, I see still (old) records in the MLOG table even after updating MV.
(2) how the table MLOG distinguishes between a reading which comes from a MV and a reading that comes from a user? If I execute manually
"Select * < table MLOG > ' could get record of the table MLOG redacted all the same way as it does after a refresh of MV?
(3) one of our MV updates crashes intermittently. Based on the events of waiting I noticed that it was a 'db file sequential read' against the main table. Finally I had to put an end to the update. I don't know why it was sequential reading on the main table when she should be reading the table MLOG. Any ideas?
(4) I saw 'file db scattered read' (full table scan) usually on tables, but I was surprised to see 'db file sequential read' against the table. I thought sequential read occurs normally against the index. All the world has noticed this behavior?
Thanks for your time.(1) once all the registered materialized views have read a particular line in a trunk of materialized view, it is removed, Yes. If there are multiple materialized views that are based on the same newspaper, they would all need to refresh before it would be safe to delete the log entry for MV. If one of the materialized views is no incremental updating, there may be cases where the log purge automatically.
(2) No, your query does not cause anything be served (although you wouldn't see something interesting unless you get to implement a lot of code to analyze change vectors stored in the journal). I don't know the exact mechanism used by Oracle has been published, if you could go through and draw a session to get an idea of the moving parts. From a practical point of view, you just need to know that when you create an updatable materialized view fast, it will register as interested especially newspapers MV.
(3) it depends on what is stored in the log of MV. The update process may need to recover specific table columns if your log stores just the fact that the data for a particular key changed. You can specify when you create a materialized view that you want to store specific columns or include the new clause values (with the NEW VALUES INCLUDING). It is perhaps beneficial (or necessary) for the refreshment quick process, but it would tend to increase the storage space for the materialized view log and increase the cost of the maintianing the materialized view log.
(4) sequential reads on a table are perfectly normal - it just means that someone looking for a block of data in the table (i.e. looking a line in the table of ROWID based on the ROWID in an index or a materialized view log).
Justin
-
I'm on oracle 8.1.7
A few times is not automatically refresh
-I want to connect view refresh time in other tables when it refreshes
-wanted to know whether the necessary changes in the view script
DROP MATERIALIZED VIEW MSIRC. IL_BRANCHES;
CREATE THE MSIRC MATERIALIZED VIEW. IL_BRANCHES
REFRESH FORCE
START WITH TO_DATE (October 12, 2009 09:15:42 "," dd-mon-yyyy hh24:mi:ss')
NEXT sysdate + 1/1440
WITH THE PRIMARY KEY
ACTIVATE THE QUERY REWRITING
AS
/ * In format on 2009-10-12 13:44:16 (PS5 v5.115.810.9015) * /.
SELECT 'IL_BRANCHES '. "" BRANCH_ID ""BRANCH_ID"
'IL_BRANCHES '. ' ' ' 'NAME',
'IL_BRANCHES '. "' HEADLINE '"TITLE. "
'IL_BRANCHES '. "" INSTANCE_ID ""INSTANCE_ID. "
'IL_BRANCHES '. "' PARENT_ID '"PARENT_ID"
'IL_BRANCHES '. "" PUB_STATUS ""PUB_STATUS"
'IL_BRANCHES '. "" ALERT_STATUS ""ALERT_STATUS"
'IL_BRANCHES '. "' ORDER_FIELD ' 'ORDER_FIELD ',.
'IL_BRANCHES '. "" DESCRIPTION ""DESCRIPTION. "
'IL_BRANCHES '. "" RELATED_LINKS ""RELATED_LINKS"
'IL_BRANCHES '. "" EXTERNAL_LINK ""EXTERNAL_LINK. "
'IL_BRANCHES '. "" SEND ""SENT. "
'IL_BRANCHES '. ' ' CONTENT_1 ' 'CONTENT_1 '.
OF ' IL_BRANCHES"@STAGING 'IL_BRANCHES ';I want to connect view refresh time in other tables when it refreshes
You can check the last_refresh of the user_snapshot_refresh_times view and the view user_refresh next_date
You can use it in the below format
TO_CHAR (last_refresh, "DD-MM-YY HH24:MI:SS) last_refresh
Anand
-
ORA-00957 double Materialized View name column (UPDATE: do not answer)
Hi all. I get this error when you try to create a materialized view. I have several other MV I've created without problem, but I can not find the catch here, can anyone help?. I can't find the duplicates. The only double I was although entered in the function Pipeline_Code and the column being called a column. To check, I have renamed the latter and still make me this question.
Any help would be greatly appreciated.
Thank you!The request is below:
CREATE THE MV_TEST_STATION MATERIALIZED VIEW
COMPLETE REFRESH
START WITH TO_DATE (20-SEP-2013 00:00:00 "," dd-mon-yyyy hh24:mi:ss')
NEXT (SYSDATE + 12/24)
AS
SELECT T.TEST_STATION_ID,
-(SELECT TEST_STATION_TYPE. DESCRIPTION
-FROM TEST_STATION_TYPE
-WHERE TEST_STATION. TEST_STATION_TYPE =
-TEST_STATION_TYPE. TEST_STATION_TYPE)
-AS TEST_STATION_TYPE,
TST. DESCRIPTION AS TEST_STATION_TYPE,
T.SURVEY,
T.STATUS,
T.STATION,
() F_TRUESTATION2
T.STATION,
T.PIPELINE_CODE,
F_REROUTE_CODE (T.STATION,
T.PIPELINE_CODE))
AS TRUE_STATION,
T.REQUIRED,
--(SÉLECTIONNEZ PIPELINE_CODES.) PIPELINE_CODE_DESCRIPTION
-FROM PIPELINE_CODES
-WHERE TEST_STATION. PIPELINE_CODE = PIPELINE_CODES. PIPELINE_CODE)
- AS PIPELINE_CODE.
PC. PIPELINE_CODE_DESCRIPTION AS PC_PIPELINE_CODE,
T.INSTALL_DATE,
COMMENT BY T.FUNCTIONAL,
TSR. TEST_STATION_READING_ID,
TSR. TEST_DATE,
TSR. SURVEYOR,
TSR. ON_VOLTS,
TSR. ON_BG,
TSR. ON_AG,
TSR. METER_UTC,
TSR. METER_ID,
TSR. IO_BG,
TSR. IO_AG,
TSR. INSTANT_OFF_VOLTS,
TSR. FUNCTIONAL_DAMAGE_OUT,
TSR. FUNCTIONAL_DAMAGE_IN,
TSR. COSEMETIC_DAMAGE_OUT,
TSR. COSEMETIC_DAMAGE_IN,
TSR.COMMENTS,
TSR. CASING_ON,
TSR. CASING_OFF,
TSR. CASING,
TSR. CALIBRATION_DUE_DATE,
TSR. ANODE_AMPS_ON,
TSR. ANODE_AMPS_OFF,
TSR. ANODE
OF TEST_STATION T
INNER JOIN TEST_STATION_TYPE ON T.TEST_STATION_TYPE = TST TST. TEST_STATION_TYPE
INNER JOIN PIPELINE_CODES ON T.PIPELINE_CODE = PC PC. PIPELINE_CODE
INNER JOIN TEST_STATION_READING ON T.TEST_STATION_ID = TSR TSR. TEST_STATION_ID
WHERE T.TEST_STATION_ID = TSR. TEST_STATION_ID
You have two COMMENTS:
COMMENT BY T.FUNCTIONAL,
...
TSR.COMMENTS,
-
Hello
I had created a materialized view, it refreshes every 3 minutes. At the end of 3 minutes next time we are accessing the old records of materialized view should be deleted. Can someone help me with this query...
create or replace materialized view deptd_mvu refresh fast on commit start with sysdate next sysdate + 3/(60*24) as select * from deptd;
969052 wrote:
No, my query shows all data are there is no error in my query? can u help me# It is not a mistake on your part of the implementation or Oracle. Error lies in understanding.
Materialized view appeared in SELECT * FROM DEPT; So, it must take all the data that are available in the Dept table each time it is regenerated.
What you intend to do is force the MView to choose the data "Modified" of table DEPT. Is not possible, unless you have some distinctive sign that the MView should be checked.
For Eg :-(just an idea that I did not test this)
Adding another column to identify records updated the: -.
alter table dept add is_modified varchar2(1) default 'N';
MView create instruction me altered as
select * from dept where is_modified = 'Y';
Write a trigger that sets the column IS_MODIFIED 'Y', each time that a record is inserted or updated. Don't worry about the deleted records (if this isn't a Soft Delete) as MView does not see records that are not present in the master table.
You simply need to ensure that, whenever the MView is refreshed, the IS_MODIFIED the Department table must be set to 'n', so that it does not display a false positives.
-
When you try to refresh the materialized view, we frequently get the below error. In order to overcome this error to drop and re-create this point of view. I also came to know that there are materialized views unalterable that can be set at the time of the creation of materialized view syntax inorder to avoid the error below.
Please give me example how to create read-only materialized view.
SQL > BEGIN dbms_mview.refresh ('CPNF_SRCLNK_TBL'); END;
*
ERROR on line 1:
ORA-00942: table or view 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
Thank youHello
See this note.
* Materialized view refresh fails with ORA-942: table or view is not [236652.1 ID] *.
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