Oracle Database Administrator Interview Questions and Answers for Freshers

Oracle database architecture consists of multiple components like instance, memory structures, and physical storage.

• Oracle database architecture includes instance, memory structures, and physical storage.

• Instance consists of background processes and memory structures like SGA and PGA.

• Physical storage includes data files, control files, and redo log files.

• Oracle database architecture allows for scalability, high availability, and performance tuning.

A materialized view (mview) is a database object that contains the results of a query. Datapump is a tool for moving data between Oracle databases. Oracle GoldenGate is a real-time data integration and replication tool.

• Materialized views (mviews) store the results of a query for faster access.

• Datapump is a tool used for exporting and importing data between Oracle databases.

• Oracle GoldenGate is a real-time data integration and replication tool used for moving and synchronizing...read more

Top faced issue is the most common and critical problem faced in a particular field.

• Examples: database crashes, data loss, security breaches, performance issues

• It is important to have a plan in place to address top faced issues

• Regular monitoring and maintenance can help prevent top faced issues

The architecture of Oracle database consists of multiple components like instance, memory structures, and physical and logical storage.

• Oracle database architecture includes an instance, which consists of memory structures like SGA and PGA.

• The instance is responsible for managing the database and executing user requests.

• Physical storage in Oracle database is organized into data files, control files, and redo log files.

• Logical storage includes tablespaces, which are divided int...read more