BEGIN
  DBMS_WORKLOAD_REPOSITORY.modify_snapshot_settings(
    retention => 7 * 24 * 60,  -- Retain snapshots for 7 days
    interval  => 60            -- Collect snapshot every 60 minutes
  );
END;
/


BEGIN
  DBMS_WORKLOAD_REPOSITORY.modify_snapshot_settings(
    retention => 7 * 24 * 60, 
    interval  => 60            
  );
END;
/


EXEC DBMS_STATS.alter_stats_history_retention(RETENTION => 7);

4gu1ln


SELECT table_name,
       bytes / 1024 / 1024 AS size_mb,
       blocks,
       extents
FROM dba_segments
WHERE segment_type = 'TABLE'
  AND tablespace_name = 'USERS'
ORDER BY bytes DESC;

SELECT segment_name AS table_name,
       bytes / 1024 / 1024 AS size_mb,
       blocks,
       extents
FROM dba_segments
WHERE segment_type = 'TABLE'
  AND tablespace_name = 'USERS'
ORDER BY bytes DESC;


ALTER TABLE enforce_center.SHR_DATA_SWITCH_LOGS ENABLE ROW MOVEMENT;
ALTER TABLE enforce_center.SHR_DATA_SWITCH_LOGS SHRINK SPACE;



SELECT segment_name AS index_name,
       owner,
       bytes / 1024 / 1024 AS size_mb,
       blocks,
       extents
FROM dba_segments
WHERE segment_type = 'INDEX'
  AND tablespace_name = 'ENFORCE_CENTER'
ORDER BY size_mb DESC;


ALTER INDEX ENFORCE_CENTER.PERSON_INDEX REBUILD;



DROP TABLE ENFORCE_CENTER.PATROL_DOC_copy1 PURGE;