Rule Based Optimizer
From Oracle FAQ
The Rule Based Optimizer (RBO) is a SQL Query optimizer that uses heuristic rules to derive optimal query execution plans. RBO is enabled by setting OPTIMIZER_MODE=RULE in the server initialization parameter file, or by altering OPTIMIZER_GOAL for your session.
All applications should be converted to use the Cost Based Optimizer as the Rule Based Optimizer is not supported in Oracle 10g and above releases.
[edit] Also see
| Glossary of Terms | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | # |
