12c Hands on Lab – Part 1 – Upgrade 11.2.0.4 to 12.1.0.2
Hope you all setup the Hands On Lab using the link provided. I simply followed the document and Lab is ready at my Laptop and completed Part 1 HOL Part 1 – Upgrade database 11.2.0.4 to 12.1.0.2 Steps...
View ArticleOracle 12c Upgrade Lab
Oracle 12c Upgrade lab instructions to setup using Oracle Virtual Box. You can download and setup on your own desktop or laptop. Instructions and documents are available in oracle tech network...
View ArticleHow to maintain SYSAUX Growth
1. Find the components and occupying space select occupant_name.schema_name,space_usage_kbytes/1024 size_MB from v$sysaux_occupants order by 3 desc; 2. Find from when the statistics data is stored:...
View ArticleOracle Database 12c Release 1 Patchset 1 (12.1.0.2) is being released only as...
Please read Support Note “Oracle Database 12c Release 1 Patchset 1 (12.1.0.2) is being released only as Enterprise Edition at this time (Doc ID 1905806.1)” SE and SE1 for 12.1.0.2 *may* come out later.
View Articlehow-to-fix-ora-26040-ora-01110-ora-26040
How to fix ORA-26040: Data block was loaded using the NOLOGGING option So, today 5`th datafile of my database was corrupted (/u01/app/oracle/oradata/ulfet_db/example01.dbf). After recover via RMAN I...
View ArticleRMAN Backup Compression Algorithm
Backup Compression Algorithm RMAN supports binary compression of backup sets. The supported algorithms are BZIP2 (default) and ZLIB. The BZIP2 algorithm is optimized for maximum compression, whereas...
View ArticleCRS-2800 ONLINE INTERMEDIATE CHECK TIMED OUT
Problem Description : [oracle@testdb01] # srvctl status database -d testdb Instance testdb1 is not running on node testdb01 Instance testdb2 is running on node testdb02 [oracle@testdb01] # srvctl start...
View ArticleGrid and ASM Upgrade on 11.2.0.1 to 11.2.0.3 Hang – Resolved
Environment : Operating System – Solaris 10 64 Bit 2 Node RAC more than 10 Databases running on the Nodes Scenario: We executed runcluvfy to verify and confirm both nodes pre-requestis are meet. We...
View ArticleHow to Check and Remove Fragmentation
Check the Table Size select table_name,bytes/(1024*1024*1024) from user_table where table_name=’table_name’; Analyze and Gather Stats exec dbms_stats.gather_table_stats(‘schema_name’,'table_name’);...
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What is the Clusterware Stack Startup Sequence – 11g Rel2
What is the Clusterware Stack Startup Sequence – 11g Rel2 inittab init.ohasd 1. oraagent.bin MDNSD GIPSD GPNPD EVMD ASM 2. orarootagent.bin CCSD Monitor CRSD i. oraagent ONS ASM instance DB instance...
View ArticleWhat is the Oracle RAC Node Startup Sequence
What is the Oracle RAC Node Startup Sequence 1. Operating System 2. Oracle Clusterware 3. VIP 4. ASM 5. Instance 6. Listener 7. Service
View ArticleWhat is rolling upgrade
It is a new ASM feature from Database 11g.ASM instances in Oracle database 11g release(from 11.1) can be upgraded or patched using rolling upgrade feature. This enables us to patch or upgrade ASM nodes...
View ArticleOracle Data Guard Network Latency
Sample Implementation 1: Maximum Availability Mode Data Guard Maximum Availability – SYNC Continous redo shipping, validation and apply up to 10ms network latency – approx 60 miles Sample...
View ArticleWhat is Redo, Rollback and Undo?
Redo : The redo log records all changes made to data, including both uncommitted and committed changes. In addition to the online redo logs Oracle also stores archive redo logs. All redo logs are...
View ArticleHow to find who Truncated the Table
SQL> conn / as sysdba Connected. SQL> EXECUTE DBMS_LOGMNR.ADD_LOGFILE( LOGFILENAME =>’+DG1/mudhalvan/onlinelog/group_1.003.345746983′); PL/SQL procedure successfully completed. SQL> EXECUTE...
View ArticleTablespace Growth Monitoring Script
Tablespace Growth Monitoring Script column “tablespace_name” heading “Tablespace | Name” format a20 column “FileCount” heading “File | Count” format 999999 column “Size(MB)” heading “Size | (MB)”...
View ArticleHow to configure DGMGRL
DG broker does not have the ability to create standby and is used for managing the dataguard configuration. Pri db_unique_name = ‘TESTPRI’ DG db_unique_name = ‘TESTDG’ Configuration(any...
View ArticleHow to change SQL Prompt in Oracle
Take a backup of glogin.sql in ORACLE_HOME\sqlplus\admin Now Edit glogin.sql and add these lines SET TIME ON SET TIMING ON set sqlprompt "_user '@' _connect_identifier > " Now try to connect using...
View ArticleLogical IO should also addressed more than Physical IO
Please read the following document to understand more on the same. http://www.hotsos.com/e-library/abstract.php?id=7
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