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Which component of the SGA contains the Java libraries?
Shared Pool. The shared pool portion of the SGA contains the library cache, the dictionary cache, buffers for parallel execution messages, and control structures.
What is Java pool in Oracle?
Answer: The java pool is a RAM region within the Oracle SGA and the java pool RAM is used to provide: Parsing of Java code and scripts. Installation tasks related to Java applications with Oracle 11g. Java stored procedure code parsing.
What are the component of SGA?
The main components of the SGA include the database buffer cache, shared pool, and redo log buffers. The database buffer cache contains actual copies of data blocks from the database. When you update a table, the information is first modified in the data buffer and is later written to disk.
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.
Which component is not part of an Oracle instance?
Which component is not part of an Oracle instance? Explanation : Control file, data file, and redo log files are part of the Oracle database. The Oracle instance constitutes the memory structures and background processes.
What do you mean by SGA?
Specialty. Pediatrics. Small for gestational age (SGA) newborns are those who are smaller in size than normal for the gestational age, most commonly defined as a weight below the 10th percentile for the gestational age.
What is the difference between SGA and PGA in Oracle?
The SGA is a group of shared memory structures, known as SGA components, that contain data and control information for one Oracle Database instance. A PGA is a nonshared memory region that contains data and control information exclusively for use by an Oracle process.
How does PGA work in Oracle?
A Program Global Area (PGA) is a memory region that contains data and control information for a server process. It is nonshared memory created by Oracle Database when a server process is started. The PGA is used to process SQL statements and to hold logon and other session information.
How is an Oracle instance associated with a SGA?
The combination of SGA (System Global Area) with one or more Oracle processes constitutes an instance. After the instance is started, the database is associated with it. This process is called database mounting. In the case of a RAC system, the database can be associated with multiple instances.
What should the SGA max size parameter be set to?
The value of the SGA_MAX_SIZE parameter defaults to the aggregate setting of all the SGA components. If the value of the SGA_MAX_SIZE parameter is not set, then decrease the size of one cache and reallocate that memory to another cache if necessary.
How is a database associated with a SGA System?
After the instance is started, the database is associated with it. This process is called database mounting. In the case of a RAC system, the database can be associated with multiple instances. The main purpose of the SGA is to store data in memory for quick access and for processing.
What do I need to know about SGA and PGA?
If you set SGA_TARGET, the keep buffer pool (to keep the data blocks of the specified schema in memory) and the recycle buffer pool (to remove unnecessary data blocks from memory) are not automatically set. You can make the configurations using the parameters DB_KEEP_CACHE_SIZE and DB_RECYCLE_CACHE_SIZE.