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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...

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Oracle 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...

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How 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:...

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Oracle 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.

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how-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...

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RMAN 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...

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CRS-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...

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Grid 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...

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How 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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Oracle 12c Pluggable Database Architecture

 

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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...

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What 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

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What 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...

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Oracle 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...

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What 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...

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How 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...

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Tablespace 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)”...

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How 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...

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How 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...

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Logical 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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