Mir Sayeed Hassan – Oracle Blog

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To set up Autotrace by using the PLUSTRACE ROLE in Oracle Database

Posted by Mir Sayeed Hassan on December 24th, 2017

To set up Autotrace by using the PLUSTRACE ROLE in Oracle Database

Follow the step by step procedure as shown below:

SQL> conn sys/sys as sysdba
Connected.
SQL> set autotrace traceonly;

SP2-0618: Cannot find the Session Identifier.  Check PLUSTRACE role is enabled
SP2-0611:... 
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Posted in DBA Administration | Comments Off on To set up Autotrace by using the PLUSTRACE ROLE in Oracle Database

Real time Auditing in Oracle Database 11gR2

Posted by Mir Sayeed Hassan on December 23rd, 2017

Real time Auditing in Oracle Database 11gR2

There are major 4 types of auditing:

1 – Statement level auditing

2 – Object level auditing

3 – Privilege level auditing

4 – Fine granined auditing

 In...
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Posted in Performance Tuning(PT) | Comments Off on Real time Auditing in Oracle Database 11gR2

Auditing at Schema Level in Oracle Database 11gR2

Posted by Mir Sayeed Hassan on December 23rd, 2017

Auditing at Schema Level in Oracle Database 11gR2

 DDL Auditing at Schema Level

 Try to perform the below tested & verified auditing at schema level in Oracle Database 11gr2

 A DDL event occurs when a DDL statement is run in specific schema level such as...

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Performance tuning test for Wait Event enq: TX – row lock contention.

Posted by Mir Sayeed Hassan on December 3rd, 2017

Performance tuning test for Wait Event enqTX – row lock contention.

Simulate step by step procedure for Wait Event enqTX – row lock contention, by updated (locking) row in 1st session & while trying to update the 2nd...

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Posted in Performance Tuning(PT) | Comments Off on Performance tuning test for Wait Event enq: TX – row lock contention.

Reorganizing or Shrink table/index in Oracle 11gR2 DB

Posted by Mir Sayeed Hassan on November 28th, 2017

Reorganizing or Shrink table/index in Oracle 11gR2 DB

A Simple demonstration to perform shrinking the object in Oracle Database 11gR2

[oracle@testdb ~]$ !sq
SQL> conn mir/****
Connected.
SQL> create table shrink_test as select 'Oracle_shrink_method' as product, mod(rownum,5) as... 
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Posted in DBA Administration | Comments Off on Reorganizing or Shrink table/index in Oracle 11gR2 DB

Clear old alert in Enterprise Manager (EM) manually from database

Posted by Mir Sayeed Hassan on November 26th, 2017

Clear old alert in Enterprise Manager (EM) in Oracle Database

Given alert shows the old alert which is not require to be present in database, Hence need to clear manually as shown below:

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Posted in EM (Enterprise Manager) | Comments Off on Clear old alert in Enterprise Manager (EM) manually from database