Robin Moffatt 9/13/2011

DBMS_STATS - GATHER AUTO

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This technical article analyzes the Oracle DBMS_STATS.GATHER_SCHEMA_STATS procedure, specifically the 'GATHER AUTO' option. It investigates the ambiguous documentation, explains that AUTO gathers statistics for objects that are either STALE or EMPTY, and discusses how it automatically defines other gathering parameters. The author emphasizes the importance of accurate statistics for the Cost-Based Optimizer (CBO).

DBMS_STATS - GATHER AUTO

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