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Default parallelism uses a formula to determine the DOP based on the system configuration, as in the following: For a single instance, DOP = PARALLEL_THREADS_PER_CPU x CPU_COUNT. For an Oracle RAC configuration, DOP = PARALLEL_THREADS_PER_CPU x sum(CPU_COUNT)

Two lines are said to be parallel if either one of the following is satisfied: 1) Corresponding angles are equal. 2) Alternate angles are equal.

Default parallelism uses a formula to determine the DOP based on the system configuration, as in the following: For a single instance, DOP = PARALLEL_THREADS_PER_CPU x CPU_COUNT. For an Oracle RAC configuration, DOP = PARALLEL_THREADS_PER_CPU x sum(CPU_COUNT)

You can monitor parallel execution performance with the V$PX_PROCESS dynamic performance view. The V$PX_PROCESS view contains information about the parallel processes, including status, session ID, process ID, and other information.

You can specify the degree of parallelism to use for a table or an index when you create it. You do that by using the PARALLEL clause of the CREATE TABLE and CREATE INDEX statements. You also can specify a PARALLEL clause when you alter a table or an index. ALTER TABLE order_items PARALLEL (DEGREE 4);

Oracle Database Discussions Then, I could check the degree of parallelism by query dba_indexes, result would be 8. select degree from dba_indexes where index_name = 'TEST_INDEX';

Script to change parallel degree for all objects in Schema -- For Tables select 'alter table '||owner||'. "'||table_name||'" parallel (degree 4);' from dba_tables where owner='IC'; -- For indexes select 'alter index '||owner||'. "'||index_name||'" parallel (degree 4);' from dba_indexes where owner='IC';

Alter index TEST_INDEX rebuild parallel 8; Then, I could check the degree of parallelism by query dba_indexes, result would be 8. select degree from dba_indexes where index_name = 'TEST_INDEX';

In DBMS, a degree of relationship represents the number of entity types that associate in a relationship. For example, we have two entities, one is a student and the other is a bag and they are connected with the primary key and foreign key.

Right-click the index that you want to modify and then click Properties. In the Index Properties dialog box, make the desired changes. For example, you can add or remove a column from the index key, or change the setting of an index option.