RMAN :: 10G Compression - Default Features
Oct 18, 2013What are the default features available along with 10g R2 Enterprise Edition , Especially for RMAN Backup ? What are the features required for licensing in 10g R2 EE version .
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SQL & PL/SQL :: Unable To Add Columns With Default Value Due To Compression
Mar 22, 2011We are trying to add 2 columns in a partitioned table.but we are getting below error:
SQL Error: ORA-39726: unsupported add/drop column operation on compressed tables
But, it is not a compressed table.
select table_name, compression from user_tables
where table_name ='SVC_ORDER_CODE_FACT'
TABLE_NAME COMPRESSION
------------------------------ -----------
SVC_ORDER_CODE_FACT
actually we are trying to add 2 columns as below:
ALTER TABLE SVC_ORDER_CODE_FACT
ADD (MKT_FEATURE_KEY NUMBER default '-2', PREV_MKT_FEATURE_KEY NUMBER default '-2');
But, if we add column without default value,
RMAN Compression Parameter
Aug 22, 2011We are seeing volume issue when taking Rman level 0 backup for a database , the database version is 11.2.0.2 and its on RHEL 2.1. As 11g supports compression for RMAN, we have implemented so as to reduce the backup space used.
" CONFIGURE COMPRESSION ALGORITHM 'LOW' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE "
However during full backup the volume size increases, meaning we have to increase /data volume (currently 500G) to more then a 1T for just rman to go through, else the backup hangs. Once backup is done we again bring down the volume size to less then 1T. The other compression parameters are HIGH and MEDIUM, hoever I am not very sure if changing to high or low will work as I couldn't find any right doc in meta link or may be I didn't searched correctly, I will continue to look for that.
RMAN :: Restore Spfile From Non-default Location In ASM
Oct 24, 2013Database: 11gEBS: 12.1.3O/S: Solaris Sparc 64 bits
Problem Description: Cloning from Source instance A to target instance B and both are in ASM instances.RMAN backup in source instance A is completed, which has spfile configured in non-default location in ASM for example,see belowASMCMD
[+ASMDG003/TEST1 > ls -ltType Redund Striped Time Sys Name Y TEMPFILE/ Y ONLINELOG/ Y DATAFILE/ Y CONTROLFILE/ N spfiletest1.ora => +ASMDG003/TEST1/PARAMETERFILE/SPFILE.747.856347
Also, there is no SPFILE in $ORACLE_HOME/dbs for the TEST1 source instance. INITTEST1.ora file has the following entry:
cat INITTEST1. oraspfile='+ ASMD G003 /TEST1/spfileTEST1.ora'
Question: In the target instance to be cloned from RMAN backup fro source instance TEST1, on performing ' restore spfile from autobackup 'location';Will the spfile be restored in $ORACLE_HOME/dbs in the target instance TEST2?
Check For Used Features?
Jul 6, 2011I would like to check and make sure that features like partitioning, Tuning, Diagnostics etc. have NOT been used. In Oracle 10 + we have the dba_feature_usage_statistics.
But how can we check this in 9.2 ?
PL/SQL :: Design Features For CSV Files
Dec 17, 2012I got a couple of reports that are made as .CSV files from PL/SQL. However I am lacking some design features. Is it possible to define text + background color and height + width of fields? (I am using utl_file package.)
View 4 Replies View RelatedDeveloper Tools :: Can Use Latest Features In Oracle 12c
Oct 2, 2013I read previous post "Can I use the latest features in Oracle Developer Tools 11g and still use ODP.NET version 10.x or 9.x in my application?".In this the solution was: "Solution: Yes, you can use the newest 11g version of Oracle Developer Tools while developing code that relies on ODP.NET version 10g or 9i. In almost all cases it will work fine. The only exception is with the automatic .NET code generation feature. Here is what you need to do:
a) Install both ODT 11g *and* ODP.NET 10g or 9i. They must be placed in different Oracle Homes!
b) You will now be able to use the 11g Oracle Developer Tools for Visual Studio and all of the newest features. To ensure the correct version of ODP.NET is used by your application continue to the next steps:
c) Make sure that in the "References" section in your solution, the Oracle.DataAccess.dll that is referenced is coming from the Oracle 10 or Oracle 9 Oracle home.
d) Finally, you must "ungac" (gacutil /u) the ODP.NET 11g policy DLL's or else your application will silently begin using the 11g version of ODP.NET even though the reference points to the correct DLL. There are several Oracle policy DLLs with varying names, for example: "Policy.2.102.Oracle.DataAccess.dll". Ungac them all."
Are the steps the same if i have Oracle Developer Tools 12c and still use ODP.NET version 11g R2 in my application?
Installation :: How To Uninstall Some Database Features And Options
May 2, 2013I want to remove some db features and options from our production database:
- Virtual Private Database
- XML DB
- XStreams
For removing of XML DB I have found: XML DB FAQ. Is it still actual? But I found nothing for uninstalling of VPD and XStreams.
Backup & Recovery :: Default Location For RMAN Backup
Jun 1, 2012What is the default location for the Rman backup ORACLE_HOMEdbs is it correct?
View 1 Replies View RelatedSQL & PL/SQL :: Default Values / Distinguishing Between Passed And Default Nulls
Nov 16, 2010I was looking for a way to see if a default value for a procedure was passed NULL or it got NULL by default. [URL]
View 11 Replies View RelatedOracle Tablespace Compression
Mar 25, 2013We have started developing a new application to compress tablespaces based on the business specification.
This is a Data Warehouse.
Version: Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
And there is a requirement to find the uncompressed segments,to find whether the tablespace is already compressed or not.
Advanced Compression In Oracle 11g R2?
Aug 8, 2012Hybrid Columnar Compression is dependent on the underlying storage system. See Oracle Database Licensing Information for more information.
The below is from the Oracle® Database PL/SQL Packages and Types Reference
Compression Constant Compression Level Description
COMP_FOR_OLTP 2 OLTP compression
COMP_FOR_QUERY_HIGH 4 High compression level for query operations
COMP_FOR_QUERY_LOW 8 Low compression level for query operations
COMP_FOR_ARCHIVE_HIGH 16 High compression level for archive operations
COMP_FOR_ARCHIVE_LOW 32 Low compression level for archive operations
To use Compression Level 4 or higher do we have to have ZFS or Pillar storage ?
Using Archive Compression For Standby?
Jul 13, 2013Database version: 11.2.0.3(Exadata)
We want to use archive compression for our standby(standalone non-exadata). We don't have license for Advanced Compression. Is the archive compression possible without Advanced Compression?
SQL & PL/SQL :: Index Compression Increasing The Size?
Jun 21, 2012I had created a Primary key and wanted to compress as per my senior instructions.Below are my results the size increased after compression.
select compression from dba_indexes where index_name = 'TEST_IDX';
Compression
----------
DISABLED
select sum(blocks) no_of_blocks, (sum(blocks)*8192)/(1024*1024)size_MB
[code]....
We ran a compression on the primary key index TEST_IDX
ALTER INDEX SCOTT.TEST_IDX REBUILD INITRANS 15 TABLESPACE DATA_01 COMPRESS;
ANALYZE INDEX SCOTT.TEST_IDX VALIDATE STRUCTURE;
Now when i ran the below select statement:
select compression from dba_indexes where index_name = 'TEST_IDX';
Compression
----------
ENABLED
select sum(blocks) no_of_blocks, (sum(blocks)*8192)/(1024*1024)size_MB
[code]....
As you can see after compression the blocks and size has been increased, but i ran for many tables and other indexes, we observed the blocks and size was reduced by 50-70%, i am not sure why this happened to the index compression.
Exadata :: Compression And Partition Row Movement?
Mar 6, 2013If I have a Partitioned Table set as COMPRESS FOR QUERY/ARCHIVE HIGH what would be the impact when a row in Partition X has to move to Partition Y?
View 3 Replies View RelatedOracle 11g Table Compression Feature
Nov 16, 2012Using Oracle 11g's compression feature in production? I haven't read anything negative yet, that doesn't meant that there isn't anything that could have an adverse affect. I wanted to check to see if there are any affects on the performance or any disadvantages of using this compression feature. I have tested this on one my major tablespace and I did see a big difference in the reduce size on the tablespace but I am still hesitated to put this into production.
View 1 Replies View RelatedForms :: Use Features Of Utl_file In Oracle Forms
Apr 3, 2011can we use features of utl_file in oracle forms.
View 2 Replies View RelatedServer Utilities :: Data Compression In Oracle 10g
Oct 18, 2010Is there any way to compress data while export in ORACLE 10g or if there is any other way I can reduce the space consumed by the datafiles.
View 10 Replies View RelatedExadata :: Enable OLTP Compression On Tables
Sep 2, 2012I am trying to enable OLTP compression on tables and at tablespace level for the tables
Steps I am following are:
1. Move indexes to its own tablespace
2. enable OLTP compression at table level:
alter table table_name move compress for OLTP
3. Rebuild indexes
4. Issue I have is what to do with tables with LOB columns
ALTER TABLE lob_table MOVE LOB (LOB_COL) STORE AS (TABLESPACE index_tbsp); -- Is this correct?
5. alter tablespace data_tablespace default compress for OLTP;
I have a question, is the sequence of steps correct. For tables with LOB columns do we needto move lobindex to index tablespace. Beacuse lobsegment and lobindex are created in data tablespace?
Server Administration :: How To See Whether Table Data Using Compression
Mar 13, 20131)i have 2 SWP TABLES. while dropping a column, i am getting error -
ORA-39726: unsupported add/drop column operation on compressed tables.
2) when i checked compression status, those were not compressed. But as per our code standard, SWP tables should not be in compress mode.
OWNER TABLE_NAME COMPRESS COMPRESS_FOR
------------------------------ ------------------------------ -------- ------------
NOVAR PAYMENT_SWP DISABLED
OWNER TABLE_NAME COMPRESS COMPRESS_FOR
------------------------------ ------------------------------ -------- ------------
NOVAR PREPAYMENT_SWP DISABLED
3) as a workaround, i compressed these 2 SWP tables with OLTP option, and then i was able to drop the column from these 2 SWP tables.
4) Below statement is correct or not ?
IF A TABLE USING BLOCK LEVEL COMPRESSION, THEN this error will come - ORA-39726: unsupported add/drop column operation on compressed tables.
if above statement is correct, then how to find out whether table data is using block level compression ?
5) we have DBMS_COMPRESSION.GET_COMPRESSION_TYPE. using this i just tried to find out, but i am getting "1" as output. I am not getting the exact meaning of it.
confirm what is the conclusion on this ?
SQL> declare
rid rowid;
n number;
begin
select max(rowid) into rid from NOVAR.PAYMENT_SWP;
n := dbms_compression.get_compression_type('NOVAR','PAYMENT_SWP',rid);
dbms_output.put_line(n);
end;
/
2 3 4 5 6 7 8 9 1
PL/SQL procedure successfully completed.
SQL>
SQL> SET SERVEROUTPUT ON
SQL> /
1
PL/SQL procedure successfully completed.
SQL> SELECT max(rowid) from NOVAR.PAYMENT_SWP;
MAX(ROWID)
------------------
AAsz4fAHSAAAD3IABs
(ii) 2nd table
SQL> set serveroutput on
SQL> declare
rid rowid;
n number;
begin
select max(rowid) into rid from NOVAR.PREPAYMENT_SWP;
n := dbms_compression.get_compression_type('NOVAR','PREPAYMENT_SWP',rid);
dbms_output.put_line(n);
end;
2 3 4 5 6 7 8 9
10 /
1
PL/SQL procedure successfully completed.
SQL> SELECT max(rowid) from NOVAR.INVOICELINE_SWP;
MAX(ROWID)
------------------
AAsz4ZAEkAAAp8XAAA
Text :: Advanced Compression And Oracle Tables / Indexes
Sep 11, 2012I have noticed that Oracle text related objects, particularily the $I tables are some of the largest objects in our database. I have been actively pursuing utilizing Oracle advanced compression in our databases for OLTP table compression and LOB object compression. I have been unable to find any documentation or notes on if it is advisable to implement either table OLTP or LOB compression for Oracle text objects.
View 1 Replies View RelatedForms :: Saving As JFIF And GIF Works Fine Without Any Compression
Feb 5, 2013I am using oracle forms 10g and basically we have a system that takes over 300 photos on a daily basis, this all works fine and with no issues except for say maybe 2-3 photos a month. Occasionally we will get a 'corrupt photo' (it not actually corrupt, it displays in everything as it should except forms) . When we encounter these photos forms just crashes out and the user is unable to query the record with the associated photo until it is deleted and a new one is taken (or alternatively if we take the photo from the database open it in paint.net and just hit save it will then work). There is no difference that we can see in the photo which doesnt work and those that do work. I have tried using WRITE_IMAGE_FILE to save the photo to disk and Read_Image_File to read from the disk to see if that makes a difference. If i save the file as jpeg and no compression it still crashes, if i save it with low compression it works fine but we lose quality which we dont want to lose. Bitmap wont work at all. Saving as JFIF and GIF works fine without any compression but we still lose quality.
The photo will display fine if we use a javabean to display it but in this instance a javabean is not an option.
One weird thing we noticed is that when we are on the form that crashes with these photos and query back a working photo first, and THEN query the 'corrupt photo' the corrupt photo displays fine, but if we go into the form and query a corrupt photo first forms crashes as explained.
Server Administration :: Start Using Data And Index Compression In 11g Database
Jun 27, 2012We have a requirement from the customer to start using data and index compression in our 11g database.. Is this something available in Oracle 10g,11g without any additional costs? We are not sure if this will work with our application so we will have to test it in-house, is it possible to compress the existing table data/index to test it out?
View 3 Replies View RelatedHow To Enable Oracle Advance Compression For EXIST Partitioned Table
Feb 8, 2013I have to enable oracle advance compression for existing table which PARTITION BY RANGE then SUBPARTITION BY HASH.
ORacle version: 11.2.0.2.0
Exadata :: Estimate Storage Savings For Hybrid Columnar Compression?
Mar 27, 2013Is there a way to estimate the storage savings for Hybrid Columnar Compression (HCC) in Oracle Exadata x3-2 machine ?
View 5 Replies View RelatedPerformance Tuning :: How Does Standard Versus Advanced Handle Index Compression
Aug 18, 2010How does standard vs advanced handle index compression? Is there an advantage to having one vs the other besides the incurred cost?
View 3 Replies View RelatedAny Data Compression Wizards That Automatically Suggest Level At Which Data Should Be Compressed
Jun 29, 2011whether Oracle has any capability of automatically checking which lossless compression algorithm it should apply by analyzing a data stream on data load? Does Oracle have any compression advisors/wizards that would make recommendations as to type and level of compression?
View 3 Replies View RelatedRMAN :: RMAN-03014 / Implicit Resync Of Recovery Catalog Failed
May 29, 2013My oracle backup via Netbackup failing with error 6 (Netbackup) and i have checked the logs please find the RMAN log file as well.
Script /opt/rman_script/st72_oracle_full.sh
==== started on Tue May 28 15:27:46 SGT 2013 ====
RMAN: /OraBase/V10203/bin/rman
ORACLE_SID: ST72
ORACLE_USER: oracle
ORACLE_HOME: /OraBase/V10203
NB_ORA_FULL: 1
NB_ORA_INCR: 0
[code]....
RMAN :: Encryption / Decryption When Using RMAN To Duplicate / Clone?
May 8, 2013Given facts:
rman is used to backup database A to disk
rman is used to put those disk backups to tape
rman is used to duplicate database A to database B on another host
the duplicate process worked fine before we started testing encryption
the duplicate process worked fine with database A having an encrypted column in one table in a non-encrypted tablespace
Now, database A has an encrypted tablespace with nothing currently in it. The duplicate process now ultimately fails with ORA-19913, unable to decrypt backup.
I am not using encrypted backups, not specifying encrypt or decrypt anywhere in the duplication process. The only thing that is encrypted is the one tablespace in database A. I have the same wallet files on Host A (database A) and Host B (database B). Wallets are open. So why does the duplication process fail because the backup cannot be decrypted?
SQL & PL/SQL :: How To Use Default Value
Feb 21, 2013I want to use default value in pl/sql , i'm executing below code
SET serveroutput ON
DECLARE
l_deptno INTEGER DEFAULT 10;
v_dname VARCHAR2(200);
[Code]...
SQL> @test.sql
Enter value for deptno: 40
dname value=OPERATIONS
I tried with NULL to use its default value but it uses NULL(which does make sense)
SQL> @test.sql
Enter value for deptno:
error
How to use the default value of the passed argument?
expected O/P
dname value=ACCOUNTING