Mohammad taj's blog
Manually database creation is one of the more frequently performed actions of a professional DBA. And, with Oracle 11g it only takes a few minutes to do :)
The procedure is same as previous which we are used for 9i and 10g.
In this database creation I used below features:
1. OMF (Oracle Managed File) for datafiles, redolog files & controlfiles
2. FRA (Flash Recovery Area) for Archivelog or backup files
3. ASM (Automatic Storage Mgmt) for Volume manager
1. Create Required Directories
There are some question which asked frequently on forums from every oracle newbie.
1. Which Oracle Certification I choose ?
Here I will explain in details.
There types of Oracle Certification we can do.
1. Oracle DBA
2. Oracle Developer
3. Oracle Application DBA
1. Oracle DBA
The person which maintain Oracle Database called Oracle Database Administrator.
There are some frequent work for Oracle DBA
1. Database Backup Responsibity.
2. Database Performance Tunning
3. Database Basic Administration Like " user creation, database security"
There are five ways to recompile invalid objects in schema.
5. Manually Recompile
This procedure is equivalent to the following SQL statement:
ALTER PROCEDUREFUNCTIONPACKAGE [.] COMPILE [BODY]
Exec dbms_ddl.alter_compile ( type , schema, name);
Type : Must be either PROCEDURE, FUNCTION, PACKAGE, PACKAGE BODY or TRIGGER.
Schema : Database Username
Name : Objects name
In this article we focus on How to migrate existing database to ASM.
Login to SYSDBA user and alter below three parameter for controlfile,datafile or FRA location with SPFILE option.
1. First need to set below parameter for controlfile,datafile or FRA.
NOTE: I have two disk group here I am using "DGRP2" disk group.
SQL> alter system set control_files='+DGRP2' scope=spfile;
SQL> alter system set db_create_file_dest='+DGRP2' scope=spfile;
Here are a couple of questions that come to mind when thinking about Oracle certification:
When rows are not stored contiguously, or if rows are split onto more than one block, performance decreases because these rows require additional block accesses.
Note that table fragmentation is different from file fragmentation. When a lot of DML operations are applied on a table, the table will become fragmented because DML does not release free space from the table below the HWM.
This article describes the procedure to install the April 2007 CPU patch on Oracle Database Release 10.1.0.5. The Patch Number is p5907304_10105_WINNT.zip
This article describes the process of upgrading the Oracle Database Server 10g Release 10.1.0.2 to Oracle Database 10g Release 10.1.0.5 on Windows XP SP2.