The database is running in archivelog mode and we have a standby with Maximum performance.There is no RMAN backup..We have noticed there is block corruption while accessing some tables.Now i would like to know are the corrupted blocks also replicated to the physical standby? Is there a way to recover the data from these corrupted blocks without shutting down the database ?
View 1 Replies
While taking a full export i came to know there was a block corruption in SYSAUX tablespace. I dont have any COLD/HOTBACKUPS/RMAN BACKUPS. As i have only the Exp backups and the database is in archive log mode. Whether is it possible to recover the BLOCK CORRUPTION with exp backups.
View 12 Replies View RelatedI am facing issue of block corruption in my exp backup which I am taking through expdp command. (Refer Attachment of Screen shot of error)
I want to know few things about the block corruption.
1. Why the block corruption occur.
2. How can I resolve this.
3. Can I rosolve this by deleting the same record on which this error is coming. if yes then how can I track that row in a table.
I already tried for DB verify utility. It shows the below result.
===================================================================
C:Documents and SettingsAdministrator>dbv file='E:ORADATAAFCCV1MONETA01.DBF' blocksize=8192
DBVERIFY: Release 11.1.0.6.0 - Production on Wed Feb 16 10:13:11 2011
Copyright (c) 1982, 2007, Oracle. All rights reserved.
DBVERIFY - Verification starting : FILE = E:ORADATAAFCCV1MONETA01.DBF
DBV-00600: Fatal Error - [28] [27070] [0] [0]
C:Documents and SettingsAdministrator>
================================================================
1) What is PHYSICAL/LOGICAL Corruption.
2) How it occurs.
3) Will RMAN works on both the types of corruption or only Physical (My senior told it works on both).
how to find the corruption block and judge whether it is physical corruption or logical corruption?
View 3 Replies View RelatedI have noticed a block corruption issue in my RAC database. Its an index , how to recover a corrupted index in system datafile.
SELECT tablespace_name, segment_type, owner, segment_name
FROM dba_extents WHERE file_id = 5
3 and 147551 between block_id AND block_id + blocks - 1;
TABLESPACE_NAME SEGMENT_TYPE OWNER
[code]....
We are using OCFS2 and O/S is RHEL 4.7.
I have a database where view v$database_block_corruption shows a corrupted block
SQL> select * from v$database_block_corruption;
FILE# BLOCK# BLOCKS CORRUPTION_CHANGE# CORRUPTIO
---------- ---------- ---------- ------------------ ---------
4 756652 1 5.5157E+12 CORRUPT
I am not able to get the relevant segment from the above information
SQL> select segment_name, segment_type, owner
2 from dba_extents
3 where file_id = 4
4 and 756652 between block_id
5 and block_id + blocks -1;
no rows selected
DBVERIFY Summary
DBVERIFY - Verification complete
Total Pages Examined : 3932160
Total Pages Processed (Data) : 3119107
Total Pages Failing (Data) : 0
Total Pages Processed (Index): 755048
[code]....
I have uploaded the complete logfile.
Below is a part of logfile
DBVERIFY - Verification starting : FILE = /prd/dvp/ora/oradata/LHF/disk06/gds_t01_01.dbf
Block Checking: DBA = 21728172, Block Type = KTB-managed data block
**** kdxcoavs = -84 < 0, avail = 3129
---- end index block validation
Page 756652 failed with check code 6401
##not here that 756652 is the same block# mentioned in v$database_block_corruption
here i tried finding the OBJECT ID as below
SELECT dbms_utility.data_block_address_block(21728172) "BLOCK", dbms_utility.data_block_address_file(21728172) "FILE" FROM dual;
BLOCK FILE
---------- ----------
756652 5
Now for the same BLOCK it is giving different File, again the segment_name or segment_id could not be found from the above information.
We are facing block corruption error and it's refer to system datafile (SYSTEM01.DBF).Below is the script through it, we can come to know about the extent.
select segment_name, segment_type from dba_extents
where file_id=1 and 134144 between block_id and block_id+blocks-1;
select owner,index_name,index_type, table_name from dba_indexes
where index_name='I_CDEF3';
How to resolve the problem as it is related to system datafile? We tried to drop the index but system is not allowing to do.
ORA-00701 - object necessary for warmstarting database cannot be altered.
I am facing problem of logical block curruption.
SQL> select * from v$database_block_corruption;
FILE# BLOCK# BLOCKS CORRUPTION_CHANGE# CORRUPTIO
---------- ---------- ---------- ------------------ ---------
3 61454 1 1417157166 LOGICAL
3 31256 1 1417011117 LOGICAL
OWNER CONSTRAINT_NAME C TABLE_NAME
------------------------------ ------------------------------ - ------------------------------
SYSMAN MGMT_METRICS_RAW_PK P MGMT_METRICS_RAW
Can i recreate the SYSMAN schema index by dropping this one?
I want to set up advance replication for 3 master site (multimaster) I created 3 master site named orc1,orc2,orc3 and followed up oracle replication management of API book instruction I created 2 tables(tes1,test2) in hr schema in all 3 master site with the same data. then I created the following steps
1-CONNECT repadmin/repadmin@orc1
2-Create the master group named hr_test_repg
BEGIN
DBMS_REPCAT.CREATE_MASTER_REPGROUP(
gname => 'hr_test_repg');
END;
/
4-add tables test1 and test2 to the group
BEGIN
DBMS_REPCAT.CREATE_MASTER_REPOBJECT(
gname => 'hr_test_repg',
type => 'TABLE',
oname => 'test1',
[code]....
I could create DBMS_REPCAT.GENERATE_REPLICATION_SUPPORT for test2 but not for test1 and it produces error
RROR at line 1:
RA-23309: object hr.test1 of type TABLE exists
RA-06512: at "SYS.DBMS_SYS_ERROR", line 105
RA-06512: at "SYS.DBMS_REPCAT_MAS", line 2552
RA-06512: at "SYS.DBMS_REPCAT", line 562
RA-06512: at line 2
I have a schema whereby a table is not joined with other tables.
the info on that table can be gotten manually (by doing a query) and then using that info in another query. so is there a way of getting info from that table?
when i am writing dump from external table, it is accessing records from dump.but when i am trying to access other dumps(create thru expdp) it is giving error.the logic i am following is mentioned below-
CREATE OR REPLACE DIRECTORY "DIR_GMS" AS 'D:Gopal_works est_env_files'
GRANT READ ON DIRECTORY dir_gms TO gopal;
GRANT WRITE ON DIRECTORY dir_gms TO gopal;
-- creating dump file in directory
CREATE TABLE emp_ext
ORGANIZATION EXTERNAL
(
TYPE ORACLE_DATAPUMP
DEFAULT DIRECTORY dir_gms
LOCATION ('emp_ext_dmp.dmp')
)
[code]......
i am able to see records.
New point:
-- taking export thru expdb
expdp hr/hr tables=EMPLOYEES directory=DIR_GMS dumpfile=HR_EMP.dmp logfile=expdpEMP.log
then i created one EXTERNAL TABLE TO access it.
CREATE TABLE emp_xt (
EMPLOYEE_ID NUMBER(5),
FIRST_NAME VARCHAR2(50),
LAST_NAME VARCHAR2(50))
ORGANIZATION EXTERNAL (
TYPE ORACLE_DATAPUMP
DEFAULT DIRECTORY dir_gms
LOCATION ('HR_EMP.DMP')
);
while accessing, it is giving error:
SELECT * FROM EMP_XT
ORA-29913: error IN executing ODCIEXTTABLEOPEN callout
ORA-31619: invalid DUMP FILE "D:Gopal_works est_env_filesHR_EMP.DMP"
ORA-06512: AT "SYS.ORACLE_DATAPUMP", line 19
i have a table which has 2 columns.1st column has userId and the other contains an xml data as a link.on clicking that link a new file opens containing the data in xml format.
<fields>
<field key="Public Email">piyush@chand.com</field>
<field key="Location">bangalore</field>
<field key="Website" />
<field key="Birthday">0001-01-01 00:00:00</field>
<field key="Gender">Male</field>
<field key="Language">English</field>
</fields>
i need to access location of a particular userId.How can i do that?
How to access (create Synonym and Materialized View) a Table contains an Array of type object which is on Remote Database connecting through DBLink.
View 27 Replies View RelatedI am using the sid of v$mystat to create a unique filename in my pl/sql procedure.
I have granted access to v$mystat to the user that is accessing it from system user as:
SQL>GRANT SELECT ON V_$MYSTAT TO ar;
Grant succeeded.
SQL> commit;
Commit complete.
now when i login as user ar and do a select on v$mystat it works fine:
SQL> select sid from v$mystat WHERE ROWNUM = 1;
SID
----------
290
However, when i do the same from my PL/SQL procedure it throws an error saying :
SQL> @FILECREATE
53 /
Warning: Function created with compilation errors.
SQL> show errors
Errors for FUNCTION FILECREATE:
LINE/COL ERROR
-------- -----------------------------------------------------------------
22/8 PL/SQL: SQL Statement ignored
22/35 PL/SQL: ORA-00942: table or view does not exist
My PL/SQL function can be found as an attachment.
In a trigger(on update of a table t1) I am trying to write, I am doing an insert on t2 accessing ':new' values of the update on t1.
But in my Insert statement, I am having get one of the column values from another table. How can I write my insert statement in such a way as to insert values contained in ':new' pseudo columns and a select from another table. Below is my insert statement in the trigger :
-------
IF (:old.GROUP_YELLOW <> :new.GROUP_YELLOW) THEN
INSERT INTO TEST.W_THRESHOLD_LOG
(THRESHOLD_LOG_WID, CHANGE_DATE, MEASURE_TYPE_WID, MEASURE_NAME, CUSTOMER_WID, CUSTOMER_NAME, USER_ID, CHANGED_ITEM, PREV_VALUE, NEW_VALUE)
VALUES(TEST.W_THRESHOLD_LOG_SEQ.NEXTVAL, SYSDATE, :new.MEASURE_TYPE_WID, 'Rolling Stabilty' , :new.CUSTOMER_WID, 'Customer1', 'User1', 'GROUP_YELLOW', :old.GROUP_YELLOW , :new.GROUP_YELLOW);
END IF;
-------
In the above code if the hardcoded value 'Customer1' need to be picked from another table,
i.e .
SELECT NAME FROM W_CUSTOMER_DIM WHERE CUSTOMER_WID = THRESHOLD.CUSTOMER_WID
how can I rewrite my query to the above value from the select into my insert statement..?
I have got 2 users as user1 and user2.I have used the following statements from user 'user1':
create role GENEVAOBJECTS;
grant select, insert, update, delete on PRODUCT to GENEVAOBJECTS;
grant GENEVAOBJECTS to user2;
In the above statements, product is a table. Now, I could able to access this table from user 'user2'. But however if I write a procedure in user2 schema accessing the table product, then the procedure is not getting compiled.
create or replace procedure test_prc as
v_test number(9);
begin
select product_id into v_test
from PRODUCT where rownum=1;
[code]...
why I cannot access that table from procedure?
Let's say we have Table - A and we would like to replicate specific row transaction to Table B.
Here are the rows in *Table A*
Time: Lets say 15:00
A1 Just Updated @15:00
A2 Just inserted @15:01
A3
B1 - Daily Delete Row -i.e just deleted a while back - Non scheduled process --executed by application @15:02
B2 -
B3 - Daily Delete Row - i.e just deleted a while back -- Non Schduled process --executed by application @15:05
B4 - Just recently purged (As part of 180 Day purge ) - Scheduled process executed by operations team @15:10
B5 - Just recently purged (As part of 180 Day purge ) - Scheduled process executed by operations team @15:10
B6 -Just recently purged (As part of 180 Day purge ) - Scheduled process executed by operations team @15:10
Current Data in Table B (Before Replication) @15:00
A1 (without updates)
A3
B1
B2
B3
B4
B5
B6
Expected rows in Table B (via replication/snapshot/materialized view / or any other method)
*Replication at 15:30*
Table B - Read Only
Expected rows after replication-
A1 -- Newly updated details
A2 -- Newly inserted row
A3
B1 - Daily delete row is expected to be replicated
B2
B3 - Daily delete row is expected to be replicated
***Note row B4 is not expected to be replicated to table B.
Questions:
1) How can we get updates, inserts and daily deletes replicated while ignore large purges?
2) How can large purge changes be reflected in replicated tables as well without deleting daily deletes?
I was about to move some tables from one table space to another but it seems it is not possible to move partitioned tables between table spaces of different block sizes.
So far the only option I have is to export and then import back the data.
know if there is any way to move a partitioned table between table spaces of different block size?
I have a sql script where triggers, procedures and functions are written. The triggers are causing db outages and causing problems in the application as well.
I am trying my best but with my low experience and expertise, am not able to make good progress.
Scenario: Course enrollments are inserted, deleted and updated in course_main and course_users table. This is done in gui as well as in background snapshot scheduler in a cron process. Course_main table contains all course enrollments and course_users table has crsmain_pk1 as foreign key.
Its quite a big file and am not sure what should i paste here so am uploading the file in txt.
I am getting the below error when I run utlrp in my database.
ERROR at line 1:
ORA-08102: index key not found, obj# 423571, file 6, block 113416 (2)
ORA-06512: at "SYS.UTL_RECOMP", line 760
ORA-06512: at line 4
I have run dbverify on File_id=6 but it did not return any corrupt pages or blocks.
Actually am trying to replicate two db servers from one in hong kong and another in china. when am trying to establish the replication, am getting error 'ORA-04052: error occurred when looking up remote object' like this...
but the same way i have tried in my local network, it is working fine.i have tried schema replication through enterprise manager grid control..
what are the recommended network requirements for implementing Oracle Multi Master replication.
View 1 Replies View Relatedi need to set up a central server with all the master tables and two other local database which will hold the updatable materialized view of the master table...the databases must be synchronized with central server..and user will work on the materialized view database...
View 10 Replies View RelatedI am cloning my prod db to test with the rman active clone command. I can successfully clone my DB, but after a few hours or so I see messages in the alert log that I have corrupted blocks in several datafiles. Note, i dont see these messages in my PROD DB therefore I think that DB has no corruption. I have few questions:
1) I was reading tha having tables or indexes set with the NOLOGGING option can cause objects to be unrecoverable. Would this affect my active clone?
2) I know you can either change a DB or tablespace to force logging. Is there a query I can use to determine if the DB is in force logging mode.
ALTER TABLESPACE tablespace_name FORCE LOGGING;
ALTER DATABASE FORCE LOGGING;
3) Lastly how to check as why my clone DB would have corrupted blocks.
Here is the clone command I am using.
rman catalog=rman/rman@proddb target=sys/sys@proddb << EOT
connect auxiliary sys/sys@clonedb
duplicate target database to clonedb from active database nofilenamecheck
pfile=/u01/app/oracle/product/11g/dbs/initclonedb.ora ;
exit
EOT
How can i check for datafile corruption or a datafile error,its some tool like Linux (fsck) command in Oracle that can halp to me to chack a datafile?.
Is any way to isolate the disk region that is corrupted?
If a disk error exist an an ASM disk group how can i isolate the error from that disk group? It's an alternative different to the VALIDATE DATAFILE command in RMAN?I'm using Oracle 11GR2 on a Linux Box.
I have a scenario like, am having two databases DB1 and DB2 in different locations where I need to replicate some of the tables(around 10 to 15 tables) from DB1 to DB2(i.e. Whenever I update any table in DB1 it has to reflect in DB2.). Both DB1 and DB2 has the same database objects.
(DB version - Oracle 10g Release 10.2.0.4.0).
the steps how this can be done. Can it be done using Materialised View.
I am trying user managed recovery using archived and redo log files. I had restored old cold backup, then copy latest control file, redo log files, and archived log files at actual locations. Now I tried to recover database using following steps.
Quote:
connect sys as sysdba
startup mount;
recover database;
auto
After applied some archived files, one of the archived file corrupted and recovery cancel due to error, then i shut down the database. Now i want to copy corrupted archived file from backup and run the recovery further. so my question that should i have to run recovery from the beginning or can i run the recover from the last status of the database.
I have to reorganize one table that related to several other tables. The reorg is too slow when it runs on this table. I would like to create one image of the table and synch it with the original one in real time. So when I run the reorg, I will use the image table that does not constrained by indexes and other objects. Once the reorg is done, I would like to rename the table. how could I do the replication in real time?
View 2 Replies View RelatedI have two schema on the two servers for replication replication is working fine.
i export one schema to another so all the tables exists at both the sites. I am adding objects in the replication group using oracle enterprise manager console.
some of the tables added fine. but some gives me error like.
ORA-23309: object UMESH.PRODUCT_MASTER of type TABLE exists
before adding this objects in the group i do like
SQL> SELECT oname FROM DBA_REPOBJECT ;
ONAME
------------------------------
AC_ACCOUNT
AC_ACCOUNT$RP
AC_ACCOUNT$RP
AC_ACCOUNT_MASTER
AC_ACCOUNT_MASTER$RP
AC_ACCOUNT_MASTER$RP
6 rows selected.
at both the sites. when i add product_master in the group then entries becomes like
SQL> SELECT oname FROM DBA_REPOBJECT ;
ONAME
------------------------------
AC_ACCOUNT
AC_ACCOUNT$RP
AC_ACCOUNT$RP
AC_ACCOUNT_MASTER
AC_ACCOUNT_MASTER$RP
AC_ACCOUNT_MASTER$RP
PRODUCT_MASTER
7 rows selected.
but with the error in and when generate replication support.
SQL> select status,request,message,oname from dba_repcatlog;
STATUS REQUEST
-------------- -----------------------------
MESSAGE
--------------------------------------------------------------------------------
ONAME
------------------------------
ERROR CREATE_MASTER_REPOBJECT
[code]....
sometimes i got error like
ORA-00942: table or view does not exist
when use CREATE_MASTER_REPOBJECT command to create object at master definition site while the the table exists at the master site.but in the same situation other objects are working fine.
