See Also: Oracle Database SQL Tuning Guide for more information on setting this parameter Oracle Database Concepts and Oracle Database SQL Tuning Guide for more information about the optimizer
See Also: Oracle Database SQL Tuning Guide for more information on setting this parameter Oracle Database Concepts and Oracle Database SQL Tuning Guide for more information about the optimizer
OPTIMIZER_SESSION_TYPE controls how the database performs automatic indexing for SQL statements in the session.
The Optimizer In Oracle Database 19c ORACLE WHITE PAPER / MARCH 13, 2019 2 WHITE PAPER / The Optimizer in Oracle Database 19c INTRODUCTION The Oracle Optimizer is one of the most...
the optimizer in Oracle Database 12c is Adaptive Query Optimization. Adaptive Query Optimization is a set of capabilities that enable the optimizer to make run-time adjustments to execution...
Property, Description ; Parameter type, Boolean ; Default value, FALSE ; Modifiable, ALTER SESSION , ALTER SYSTEM
OPTIMIZER_REAL_TIME_STATISTICS controls whether the database automatically gathers real-time statistics during conventional DML operations.
OPTIMIZER_DYNAMIC_SAMPLING controls both when the database gathers dynamic statistics, and the size of the sample that the optimizer uses to gather the statistics.
Describes Autonomous Database commands to run when you need to gather optimizer statistics or enable optimizer hints.
of optimizer behavior at the database instance and session level. "Influencing the Optimizer with Initialization Parameters " Hints A hint is a commented instruction in a SQL statement....