Oracle recopilar estadísticas de tabla
CALL DBMS_STATS.GATHER_TABLE_STATS(
'OWNER_NAME',
'TABLE_NAME',
ESTIMATE_PERCENT => 50, -- longer but better than 1 for exec plans
GRANULARITY => 'PARTITION', -- or SUBPARTITION or nothing
PARTNAME => 'PARTITION_NAME', -- or nothing
DEGREE => 8 -- parallelism
);
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