-- ============================================================================
-- awrsqlidtabstat2.sql
-- ----------------------------------------------------------------------------
-- Reference:
--   https://blogs.oracle.com/optimizer/post/check-sql-stale-statistics
-- Updated in 2026 july from Grand Canaria ;)
-- ============================================================================

SET PAGESIZE 100
SET LINESIZE 150
SET TRIMS OFF
SET TAB OFF
SET VERIFY OFF

COLUMN table_name   FORMAT a25
COLUMN index_name   FORMAT a25
COLUMN object_type  FORMAT a20
COLUMN owner        FORMAT a25
COLUMN object_owner FORMAT a25
COLUMN object_name  FORMAT a25
COLUMN stale_stats  FORMAT a30
COLUMN num_rows     FORMAT 999,999,999,999
COLUMN visibility   FORMAT a9
COLUMN status       FORMAT a8

PROMPT
PROMPT ==================================
PROMPT Tables with Statistics Information
PROMPT ==================================
PROMPT

WITH plan_tables AS (
  SELECT DISTINCT
    object_name,
    object_owner,
    object_type
  FROM dba_hist_sql_plan
  WHERE object_type LIKE 'TABLE%'
    AND sql_id = '&1'
    AND plan_hash_value = '&2'
)
SELECT
  t.object_owner  AS owner,
  t.object_name   AS table_name,
  t.object_type   AS object_type,
  tab.num_rows,
  DECODE(
    stale_stats,
    'NO', 'OK',
    NULL, 'NO STATS!',
    'STALE!'
  ) AS staleness
FROM dba_tab_statistics s
JOIN plan_tables t
  ON s.table_name = t.object_name
 AND s.owner = t.object_owner
JOIN dba_tables tab
  ON t.object_owner = tab.owner
 AND t.object_name = tab.table_name
WHERE s.partition_name IS NULL
  AND s.subpartition_name IS NULL
ORDER BY t.object_owner, t.object_name;


PROMPT
PROMPT ===================================
PROMPT Indexes with Statistics Information
PROMPT ===================================
PROMPT

WITH plan_indexes AS (
  SELECT DISTINCT
    object_name,
    object_owner,
    object_type
  FROM dba_hist_sql_plan
  WHERE object_type LIKE 'INDEX%'
    AND sql_id = '&1'
    AND plan_hash_value = '&2'
)
SELECT
  i.object_owner  AS owner,
  i.object_name   AS index_name,
  i.object_type   AS object_type,
  idx.status,
  idx.num_rows,
  idx.visibility,
  DECODE(
    stale_stats,
    'NO', 'OK',
    NULL, 'NO STATS',
    'STALE!'
  ) AS staleness
FROM dba_ind_statistics s
JOIN plan_indexes i
  ON s.index_name = i.object_name
 AND s.owner = i.object_owner
JOIN dba_indexes idx
  ON s.owner = idx.owner
 AND s.index_name = idx.index_name
WHERE s.partition_name IS NULL
  AND s.subpartition_name IS NULL
ORDER BY i.object_owner, i.object_name;


PROMPT
PROMPT ===============
PROMPT Missing Indexes
PROMPT ===============
PROMPT

WITH plan_indexes AS (
  SELECT DISTINCT
    object_name,
    object_owner,
    object_type
  FROM dba_hist_sql_plan
  WHERE object_type LIKE 'INDEX%'
    AND sql_id = '&1'
    AND plan_hash_value = '&2'
)
SELECT
  object_owner,
  object_name
FROM plan_indexes
WHERE object_type = 'INDEX'
MINUS
SELECT
  owner,
  index_name
FROM dba_indexes;