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DBA Common Task DescriptionsBelow is a list of some of the more common tasks that a database administrator may be

expected to perform. In real life, for any given position, a DBA may be required to do

more or fewer tasks than those listed here.

• Database architecture and Options

• Understand the parts of an Oracle instance. These include the memory

structures and processes.

• Understand both the logical and physical structures of an Oracle database.

• Understand PL/SQL (including functions, procedures, packages, triggers,cursors, ...).

•

Understand different database system architectures, such as distributed, partitioned, replicated, and client-server.

• Understand locking issues.

• Security

• Create, alter, and drop users and roles.

• Monitor and audit database access.

• Develop, implement, and manage a security strategy (or  security policy),

including use of users, roles, priveleges, and authentication.

• Understand how distributed processing affects security.

• Data Administration

• Manage integrity constraints.

• Implement the physical database from the logical design.

• Evaluate the use of stored procedures, triggers, and constraints toimplement business rules.

• Backup and Recovery

• Understand and evaluate the various backup options available.

• Develop backup and recovery strategies.

• Manage the implementation of backup and recovery procedures.

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• Recover a database.

• Software Maintenance and Operations

• Install and upgrade Oracle and supporting products.

• Configure an Oracle instance using the initialization parameters.

• Configure and Manage SQL*NET.

• Understand startup and shutdown options and procedures.

• Create a database.

• Understand the underlying operating system capabilities as they relate tothe Oracle database.

• Resource Management

• Create and manage indexes.

• Understand the use and implementation of clusters (and hash clusters).

• Allocate and manage physical storage structures (datafiles, redo logs,

control files).

• Allocate and manage logical storage structures (tablespaces, schemas,extents, ...).

• Manage system resource use by defining proper profiles.

• Perform capacity planning.

• Tuning and Troubleshooting

• Diagnose and resolve locking conflicts.

• Use data dictionary tables and views.

• Monitor a database instance.

• Collect and analyze relevant database performance information.

• Identify and implement appropriate solutions for database proformance

 problems.

• Know how to use vendor support services when necessary.

• Identify and solve SQL*Net problems.

• Education

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• Disseminate Oracle information to developers, users, and management

when appropriate.

• Train backup DBAs, application developers, and other appropriate staff.

• Attend training classes, technical conferences, and user group meetings (to

stay abreast of the latest developments).

• Subscribe to and read trade journals such as Oracle Magazine.

• Subscribe to and participate in Internet discussion (news) groups and

mailing lists.

• Database Standards

• Define, document, and maintain database standards for your organization.

• Develop naming conventions for everything, including SQS*Net files,table names, index names, procedure names, etc.

• Write and distribute procedures for tasks that must be performedfrequently.

• Define database documentation standards.

• Compile a DBA handbook for your oganization, of all the documentation

on customized code, procdedures, and standards. Keep as current as

 possible.