2.280 OPTIMIZER_USE_SQL_QUARANTINE

OPTIMIZER_USE_SQL_QUARANTINE determines whether the optimizer considers SQL Quarantine configurations when choosing an execution plan for a SQL statement.

Property	Description
Parameter type	Boolean
Default value	true
Modifiable	ALTER SESSION, ALTER SYSTEM
Modifiable in a PDB	Yes
Range of values	true | false
Basic	No
Oracle RAC	Different instances can use different values.

Values:

• true

  The optimizer considers SQL Quarantine configurations when choosing an execution plan for a SQL statement. The statement will be terminated if it would otherwise use a quarantined execution plan.

• false

  The optimizer ignores SQL Quarantine configurations when choosing an execution plan for a SQL statement. It may use any execution plan, regardless of its quarantine status.

See Also:

• "DBA_SQL_QUARANTINE"

• "OPTIMIZER_CAPTURE_SQL_QUARANTINE"

• Oracle Database SQL Tuning Guide for more information about SQL Quarantine