What affects the size of the SGA in Oracle?

The granule size depends on the database version and sometimes on the operating system. In Oracle 9i and earlier, it is 4 MB if the SGA size is less than 128 MB, and 16 MB otherwise. For later releases, it is typically 4 MB if the SGA size is less than 1 GB, and 16 MB otherwise.

How do you adjust SGA size?

Step by Step How to increase SGA size in Oracle

1. 2:- Check the value of SGA.
2. 1:- Check file location of spfile/pfile.
3. 2:- Check the value of SGA.
4. 3:-Take a backup of spfile before modification.
5. 4:- Modify SGA values and reboot the database.

Which of the following does not affect the size of the SGA?

The size of the SGA is not affected by the stored procedure. A system global area (SGA) is a group of shared memory structures that contain data and control information for one Oracle database instance.

Is SGA max size dynamic?

The Oracle sga_max_size parameter sets the hard limit up to which sga_target can dynamically adjust sizes. Usually, sga_max_size and sga_target will be the same value, but there may be times when you want to have the capability to adjust for peak loads.

What is SGA size?

The SGA (System Global Area) is an area of memory (RAM) allocated when an Oracle Instance starts up. The SGA’s size and function are controlled by initialization (INIT. ORA or SPFILE) parameters.

What is the purpose of SGA in Oracle?

The System Global Area (SGA) is a group of shared memory structures, known as SGA components, that contain data and control information for one Oracle Database instance. The SGA is shared by all server and background processes. Examples of data stored in the SGA include cached data blocks and shared SQL areas.

How does Oracle 12c calculate SGA size?

1. About the Shared Pool. Benefits of Using the Shared Pool. Shared Pool Concepts.
2. Using the Shared Pool. Use Shared Cursors. Use Single-User Logon and Qualified Table Reference.
3. Configuring the Shared Pool. Sizing the Shared Pool.
4. Configuring the Large Pool. Configuring the Large Pool for Shared Server Architecture.