What is the effect of setting the value "CHOOSE" for
OPTIMIZER_GOAL, parameter of the ALTER SESSION Command ?

Answer Posted / nishi

The Optimizer chooses Cost_based approach and optimizes with the goal of best throughput if statistics for atleast one of the tables accessed by the SQL statement exist in the data dictionary. Otherwise the OPTIMIZER chooses RULE_based approach.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Which environment variables are absolutely critical in order to run the OUI?

1647


How can we find out the current date and time in oracle?

641


Write a syntax for update query in oracle?

614


What is a server parameter file in oracle?

589


Hi friends can u send the oracle 9i full version download link?????????????? please reply ?

1440






master table and child table performances and comparisons in Oracle ?

1661


What is the fastest query method to fetch data from the table?

860


What are the components of logical database structure in oracle database?

575


How to estimate disk space needed for an export job?

558


What is the data type of dual table?

523


How a database is related to tablespaces?

576


Explain what are the different type of segments?

574


Why do I get java.lang.abstractmethoderror when trying to load a blob in the db?

549


How data locks are respected in oracle?

570


how to join query for one source type is oracle another source type is sql server ?

1985