DBA_I

Managing Control Files

The Control File can be considered to be the most important file in a database, it is the identity of the database.

Managing RedoLog Files

Consistency is a key requirement and factor of a database. “Shadow Copy” and “Write-Ahead Logging” (WAL) methods are used in order to ensure consistency, WAL being more popular.

Table Space Management

Data, in Oracle, is logically stored in tablespaces and physically stored in datafiles. The illustration below shows the file and logical structures according to the operating system.

Listener

The Listener service runs on the server and listens for requests from clients. By default it operates on TCP Port 1521 but can be reconfigured.