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What are the factors that affect OPTIMIZER in choosing an
Optimization approach ?

Answers were Sorted based on User's Feedback



What are the factors that affect OPTIMIZER in choosing an Optimization approach ?..

Answer / guest

The OPTIMIZER_MODE initialization parameter Statistics in the
Data Dictionary the OPTIMIZER_GOAL parameter of the ALTER
SESSION command hints in the statement.

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What are the factors that affect OPTIMIZER in choosing an Optimization approach ?..

Answer / nishi

This value causes the optimizer to the cost-based approach for all SQL statements in the session regardless of the presence of statistics and to optimize with a goal of best throughput.

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