01 the oracle dbas world
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The Oracle DBA’s World
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Oracle DBA’s Role
• To make corporate data available to the end users and the
decision makers of an organization
• Security
• Backup
• Performance
• Design
• Implementation
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DBA’s System Management Role
• Troubleshooting to fix problems
• Ensuring Performance Tuning
• Minimizing Downtime
• Estimating Requirements
• Developing Backup and Recovery Strategies
• Loading Data
• Change Management
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DBA’s Database Design Role
• Design the Database
• Installing and Upgrading Software
• Creating Databases
• Creating Database Objects
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DBA Job Classifications
• In small firm, a single DBA might be the UNIX or NT
administrator and the network administrator as well as the
Oracle DBA.
• A large company might have a dozen or more Oracle DBAs,
each in charge of a certain database task (e.g. backup)
• Production DBA refers to database administrators in charge of
production databases.
• Development or logical DBAs are involved in the pre
production design and development of database.
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Types of Databases
• OLTP : Online Transaction Processing
– Bread and Butter of most consumer and supplier oriented
databases. – Include order entry, billing, customer, supplier, and supply_chain
databases.
– 27/7/365 availability, short maintenance intervals, and low
tolerance for breakdowns in the system.
• DSS : Decision Support System Database
– Range from small databases to large data warehouses.
– The extremely large size of some of these data warehouses
necessitates the use of special techniques both to load and to use
the data.
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