SET HEA ON LIN 2490 PAGES 100 TAB OFF FEED OFF ECHO OFF VER OFF TRIMS ON TRIM ON TI OFF TIMI OFF LONG 240000 LONGC 2400 SERVEROUT OFF;

ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD"T"HH24:MI:SS';

--

COL pdb_name FOR A30 TRUNC;

COL owner FOR A30 TRUNC;

COL table_name FOR A30 TRUNC;

COL list_of_pdbs FOR A200 TRUNC;

--

-- consider only tables with more than these many rows

DEF n_rows = '500';

-- horizon where the analysis of gc is done

DEF as_of = 'SYSDATE';

-- if there has not been gc for these many hours ending on "as of"

DEF hrs_window = '6';

-- percent of tables with gc over total tables to declare gc is happening

DEF perc_tables_gc = '95';

--

WITH

kiev AS (

SELECT /*+ MATERIALIZE NO_MERGE OPT_PARAM('_px_cdb_view_enabled' 'FALSE') */ DISTINCT c.name AS pdb_name FROM cdb_tables t, v$containers c WHERE t.table_name = 'KIEVDATASTOREMETADATA' AND c.con_id = t.con_id

),

tables AS ( -- superset of application tables having more than n_rows

SELECT /*+ MATERIALIZE NO_MERGE OPT_PARAM('_px_cdb_view_enabled' 'FALSE') */

c.name AS pdb_name,

t.owner,

t.table_name,

t.num_rows,

t.last_analyzed

FROM cdb_users u,

cdb_tables t,

v$containers c

WHERE u.oracle_maintained = 'N'

AND u.username NOT LIKE 'C##%'

AND u.con_id > 2

AND t.con_id = u.con_id

AND t.owner = u.username

AND t.partitioned = 'NO'

AND t.num_rows > &&n_rows.

AND c.con_id = u.con_id

),

modifications_hist AS ( -- modifications history for superset of application tables that have had activity

SELECT /*+ MATERIALIZE NO_MERGE */

pdb_name,

owner,

table_name,

last_analyzed,

num_rows,

timestamp,

inserts,

deletes,

ROW_NUMBER() OVER (PARTITION BY pdb_name, owner, table_name ORDER BY CASE WHEN inserts > 0 THEN timestamp END DESC NULLS LAST) inserts_row_number,

ROW_NUMBER() OVER (PARTITION BY pdb_name, owner, table_name ORDER BY CASE WHEN deletes > 0 THEN timestamp END DESC NULLS LAST) deletes_row_number

FROM c##iod.dbc_tab_modifications

WHERE truncated = 'NO'

AND owner <> 'SYS'

AND owner NOT LIKE 'C##%'

AND table_name NOT LIKE 'KIEV%'

AND updates = 0

AND timestamp BETWEEN (&&as_of.) - ((&&hrs_window.) / 24) AND (&&as_of.)

AND pdb_name IN (SELECT pdb_name FROM kiev)

),

modifications AS ( -- most recent inserts and most recent deletes per active application table

SELECT /*+ MATERIALIZE NO_MERGE */

pdb_name,

owner,

table_name,

MAX(CASE inserts_row_number WHEN 1 THEN timestamp END) AS inserts_timestamp,

MAX(CASE inserts_row_number WHEN 1 THEN inserts END) AS inserts,

MAX(CASE deletes_row_number WHEN 1 THEN timestamp END) AS deletes_timestamp,

MAX(CASE deletes_row_number WHEN 1 THEN deletes END) AS deletes

FROM modifications_hist

WHERE (inserts_row_number = 1 AND inserts > 0) OR (deletes_row_number = 1 AND deletes > 0)

GROUP BY

pdb_name,

owner,

table_name

),

tables_mod AS ( -- superset of application tables having more than n_rows, including last inserts and deletes and their timestamp

SELECT /*+ MATERIALIZE NO_MERGE */

t.pdb_name,

t.owner,

t.table_name,

t.num_rows,

t.last_analyzed,

NULLIF(m.inserts, 0) AS inserts,

CASE WHEN m.inserts > 0 THEN m.inserts_timestamp END AS inserts_timestamp,

NULLIF(m.deletes, 0) AS deletes,

CASE WHEN m.deletes > 0 THEN m.deletes_timestamp END AS deletes_timestamp

FROM tables t,

modifications m

WHERE m.pdb_name(+) = t.pdb_name

AND m.owner(+) = t.owner

AND m.table_name(+) = t.table_name

),

active_tables_within_window AS ( -- tables with inserts or deletes within the last 6 hours

SELECT /*+ MATERIALIZE NO_MERGE */

pdb_name,

owner,

table_name,

num_rows,

last_analyzed,

inserts,

CASE WHEN inserts_timestamp > (&&as_of.) - ((&&hrs_window.) / 24) THEN 1 ELSE 0 END AS inserted_in_window,

inserts_timestamp,

deletes,

CASE WHEN deletes_timestamp > (&&as_of.) - ((&&hrs_window.) / 24) THEN 1 ELSE 0 END AS deleted_in_window,

deletes_timestamp

FROM tables_mod

WHERE inserts_timestamp > (&&as_of.) - ((&&hrs_window.) / 24)

OR deletes_timestamp > (&&as_of.) - ((&&hrs_window.) / 24)

)

/*****************************************************************************************************************/

SELECT pdb_name,

owner,

table_name,

num_rows,

last_analyzed,

inserts,

inserts_timestamp

FROM active_tables_within_window

WHERE inserted_in_window > 0

AND deleted_in_window = 0

ORDER BY

pdb_name,

owner,

table_name

/