What is SGA?

Answer Posted / swarna

SGA is a system global area (or) shared global area. The information available within this area is accessed by all users. Memory is allocated to the SGA when oracle instance starts.

Components of SGA:
1.Shared pool
(a) Library cache
(b) data dictionary cache
2.Data buffer cache
3.Redolog buffer cache
4.Large pool
5.Java pool

Size of the SGA can be view by SGA_MAX_size
The memory allocated to SGA can be viewed by Show SGA (or) show parameter sga_target.

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Teradata: How can we know the indexed column in a table?

1372


How to calculate the approximate size of the SGA based on the size of the block,shared_pool,redo_buffer_cache and db_buffer_cache?

2262


What are the consideration at tehe migration of Oracle 9i to 10G.

2548


What is the function of Redo Log in Oracle?

665


What is an Oracle Rollback Segment?

617






What are the uses of Oracle Rollback Segment?

647


What is an Integrity Constrains in Oracle?

726


What is an Oracle SYSTEM tablespace and when is it Created?

611


How to define Data Block size in Oracle?

644


What are Oracle Schema Objects?

642


What is an oracle database schema?

647


Can a View based on another View in Oracle?

659


Can a Tablespace hold objects from different Schemes in Oracle?

628


What is an Oracle Data Block?

638


What is an Oracle Data Segment?

615