Database Management Systems

This is in turn made up the persistent area that contains bind information and a runtime area that is created as soon as an execute request is initiated.

These facilitate the oracle mechanism to recover from an instance failure or a media failure.

The database application issuing the distributed transaction is directly connected to the node acting as the global coordinator.

This prevents SQL statements from being repeatedly parsed thus improving performance during execution of SQL statements.

During this phase, RMAN determines which objects the command will access.

Two specific cache library cache and the data dictionary caches form the shared pool.

It's main functions are to provide memory for session memory for the shared server environment, parallel execution message buffers.

It is a contiguous group of blocks allocated for use as part of a table, index and so forth.

It allows you to specify the values to attributes that can be enforced without bouncing the database as well as after re-starting the database.

It stores the most critical data which never remains in-doubt, even if a failure occurs.

The contents of the redo log buffer are essential for instance recovery purposes.

Here, the transaction wants only to read the data item.

A tablespace will frequently group together similar objects such as relations for a specific business area or a specific function.

Yes, this is the correct choice.A table is a set of data elements (values) that is organized using a model of vertical columns (which are identified by their name) and horizontal rows, the cell being the unit where a row and column intersect.

CURSOR_SPACE_FOR_TIME parameter set to TRUE tells Oracle to keep cursors in memory even when not in use, trading memory for performance. Before enabling this, you must confirm that RELOADS in V$LIBRARYCACHE is consistently zero - meaning SQL statements aren't being reloaded, indicating sufficient shared pool memory.