Want to know how important is the “Role of database administrator” ,check out below article

Role of Database Administrator

Database Administrators commonly referred to as DBA, is a person or a group of people who make strategy decisions regarding the data of an enterprise or a database. Role of database administrator is very important .

Role of Database Administrator

Since a database could be very vast and can accommodate various users, so one person can’t control all the activities of the database, so in that case, a group of DBAs are required who will share all the responsibilities and work in coordination.

The Roles and Responsibilities of DBAs are as follows:

• Installation and Configuration and upgradation of the Oracle server.
• Capacity Planning
• Creation of Database objects (Tables, Views, Procedures ,Packages etc)
• Creation of Data Security Activities (creation of Users,Roles, Privileges etc)
• Define Backup and Recovery procedures and scripts.
• Monitor Oracle Database Performance issues and take appropriate actions.
• Monitor disk space issues
• Troubleshooting in case of any problems, a DBA needs to quickly understand and respond to problems when they occur.
  • Contact the Oracle Corporation if they need any help regarding technical support.
• Review and evaluate the software, hardware, service delivery, and updates when required.
  • Applying Oracle Patches
• Provide technical support to application development teams usually the help desk
• Maintain proper documentation on oracle database maintenance procedures for future usage.
• Protection of the database files from loss or Corruption.
• Responsible for Data Loading activities.

Role of DBA

As part of “Role of DBA” , many activities are discussed.

In a given project not all are performed by single DBA.

Based on the amount of work , activities are assigned to each DBA.

For Example , in a development project , all development dba activities like

• Setup of development database environment
• Helping development team in creating object, test tables , test data etc
• Granting Roles and Privileges to development team
• Setting up UAT Environment (User Acceptance Testing Environment)
• Test Data Loading in Development and UAT Environment.
• Coordinating with Production DBA for moving “Enhancement Code” to Production Environment.

Daily Roles of Oracle DBA:-

• Check all instances are up
• Make sure the database is available.
• Log into each instance and run daily reports or Test Scripts.
• Some Projects have automation for such activities / Oracle Enterprise Manager /Third Party Tools
• Check for
  • New recent alert log entries
  • ORA – Errors
• Check Validity of backups
• Validate Archive Log Files
• Ensure enough resources are available for acceptable performance of Database.
  • Ensure enough free mb/Gb in tablespaces
• For every database instance, check enough free space exists in each tablespace to handle the day’s expected growth.
• Check for Invalid Objects ( Example Invalid Indexes, Invalid Packages , Procedures etc)
• Monitor contention for
  • CPU
  • Memory
  • Network or
  • Disk resources
• Enhance knowledge by reading Oracle DBA manuals for one hour

HOW TO BECOME ORACLE DBA

• The Oracle DBA must have good communication skills to work with the development team and other team members.
• DBA should know all the basics   and should have a good understanding of the database.
• Then DBA can perform his role of database administrator.