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Mount NFS share on Exadata
Procedure to mount an NFS share on Exadata # service portmap start Starting portmap: [ OK ] service nfs start Starting NFS services: [ OK ] Starting NFS quotas: [ OK ] Starting NFS daemon: [ OK ]...
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Oracle TDE 11g on RAC with Auto Login for the Wallet
Oracle Transparent Data Encryption using Oracle Wallet If you wish to use a wallet specifically for TDE, then you must specify a wallet location in the sqlnet.ora file by using the...
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Cannot login to SQL*PLUS as SYSDBA
There are scenarios where you cannot login to SQL*PLUS even with SYSDBA credentials to restart a hanged database. There is an option in sql*plus to connect, if such a scenario pop’s up. sqlplus -prelim...
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Why Doesn’t This Trigger Work – No Developer Tools Allowed in the Database
Originally posted on Charles Hooper's Oracle Notes: March 10, 2010 In one of last week’s blog articles I asked why a SQL statement that had appeared in a book, was copied to various websites, and was...
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Putting Apache Kafka To Use: A Practical Guide to Building a Stream Data...
Originally posted on Confluent: These days you hear a lot about “stream processing”, “event data”, and “real-time”, often related to technologies like Kafka, Storm, Samza, or Spark’s Streaming module....
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Golden Gate Bidirectional Replication Oracle to Oracle example
Originally posted on Vishal desai's Oracle Blog: In this blog I will try to show how to setup golden gate homogeneous bidirectional replication (Oracle <-> Oracle). Software Setup: Virtual Box...
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Oracle Database In-Memory 12c
Starting Testing for In-Memory Column Store on 12.1.0.2. Will post the results for the test very soon on the blog.
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Active – Active (Bi-Directional) Replication using Oracle Golden Gate 12c
Since it was announced in Early 2010 that Oracle GoldenGate will be the RoadMap for Replication for Oracle Database, The adoption of GoldenGate over Streams has been quite Rapid. The complexity of...
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GoldenGate : ggsci: error while loading shared libraries: libnnz11.so
Originally posted on Nadeem M..........: Following error might encountered while intializing ggsci prompt for Oracle Golden Gate. This error is encountered as ggsci is unable to locate lib files which...
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ASM Rebalance Too Slow? 3 Tips To Improve Rebalance Times
Originally posted on flashdba: I’ve run into a few customers recently who have had problems with their ASM rebalance operations running too slowly. Surprisingly, there were some simple concepts being...
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Install Oracle Apex 5.0, 4.2.6, 4.2.x with Embedded PL/SQL Gateway
1. Download Software as Zip file from OTN http://www.oracle.com/technetwork/developer- tools/apex/downloads/index.html 2.Unzip apex_5.0_en.zip Software to ORACLE_HOME directory, it will create a...
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Adding a Logo to your APEX login page
Originally posted on Christoph's 2 Oracle Cents: To add a logo to your application’s login page is quite easy to do. I chose to place the company logo into the Login region, where the username and...
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Delete Duplicate Rows Oracle
Check for Duplicate Row using Group By function This script deletes each row in the group after the first row. DELETE FROM our_table WHERE rowid not in (SELECT MIN(rowid) FROM our_table GROUP BY...
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Remove Whitespace Perl
Remove all whitespace from file perl -lape ‘s/\s+//sg’ INPUT.TXT > OUTPUT.TXT Remove whitespace more than one space perl -wlpe ‘~ s/ +/ /g’ INPUT.TXT > OUTPUT.TXT Remove whitespace more than one...
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11.2.0.3 Strange statistic, large transactions, dirty buffers and “direct...
Originally posted on Nigel Noble's Oracle Blog: Summary I recently investigated an IO performance “spike” on a large 11.2.0.3 transactional system and I thought I would cover some interesting issues...
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Case Expressions and Statements in Oracle
http://www.oracle-developer.net/display.php?id=206
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ASH and AWR Scripts for Checking Wait Events and Top Consuming SQL’s
http://gavinsoorma.com/2012/11/ash-and-awr-performance-tuning-scripts/
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Exadata Hybrid Columnar Compression
Originally posted on Saurabh K. Gupta's Oracle Blog: The basic idea behind the Exadata Hybrid Columnar Compression (hereby referred as EHCC) is to reprise the benefits of column based storage while...
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Compress Table Partitions with Oracle HCC
SQL> ALTER TABLE MOVE PARTITION COMPRESS FOR QUERY LOW PARALLEL 8; SQL> ALTER TABLE MOVE PARTITION COMPRESS FOR QUERY HIGH PARALLEL 8; SQL> ALTER TABLE MOVE PARTITION COMPRESS FOR ARCHIVE LOW...
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ASH Script for Finding out Top Wait Events in Oracle
prompt ************************************ prompt **** ASH OVERALL WAIT PROFILE prompt ************************************ set lines 999 SELECT MIN(sample_time)...
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