Database is facing issues with enq: TX – allocate ITL entry.
Research to find Troubleshooting waits for ‘enq: TX – allocate ITL entry’ (Doc ID 1472175.1)
Index DINH.INFO_IX1 was rebuilt.
To find SQL using index DINH.INFO_IX1- https://github.com/jkstill/oracle-script-lib/blob/master/sql/find-index-sql.sql
After running find-index-sql.sql, get execution statistics and history for a SQL using Doc ID 1371778.1.
The document illustrates how to get execution statistics and history for a SQL using sql_id using Data Dictionary queries for both queries in memory and those in the AWR.
DEMO:
-- Find SQL where an index has been used
SQL> @find-index-sql.sql
old 2: :b_index_owner := '&&v_index_owner';
new 2: :b_index_owner := 'DINH';
old 3: :b_index_name := '&&v_index_name';
new 3: :b_index_name := 'INFO_IX1';
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.00
SQL_ID PLAN_HASH_VALUE
------------- ---------------
272kpc0q766tx 1690776192
7wd9njg9sy9mk 1635894828
gu9t5kgmy3pp6 698638001
Elapsed: 00:00:46.75
SQL>
======================================================================
--- sql_history.sql for SQL_ID: 272kpc0q766tx using index DINH.INFO_IX1
======================================================================
SQL> @sql_history.sql
--- From Memory
Enter value for sql_id: 272kpc0q766tx
old 16: where sql_id = '&sql_id'
new 16: where sql_id = '272kpc0q766tx'
SQL_ID CHILD_NUMBER PLAN_HASH_VALUE FIRST_LOAD_TIME LAST_LOAD_TIME OUTLINE_CATEGORY SQL_PROFILE EXECUTIONS
------------- ------------ --------------- -------------------- -------------------- -------------------- -------------------------------- ----------
272kpc0q766tx 0 1690776192 2018-10-23/11:20:35 2021-10-21/05:55:23 29
272kpc0q766tx 1 1690776192 2018-10-23/11:20:35 2021-07-29/19:55:22 29268833
272kpc0q766tx 3 1690776192 2018-10-23/11:20:35 2021-12-08/08:00:26 441
272kpc0q766tx 4 1690776192 2018-10-23/11:20:35 2021-05-07/05:16:48 3583
272kpc0q766tx 6 1690776192 2018-10-23/11:20:35 2021-12-01/21:18:11 413747
272kpc0q766tx 8 1690776192 2018-10-23/11:20:35 2021-12-01/22:07:51 164
272kpc0q766tx 37 1690776192 2018-10-23/11:20:35 2021-04-24/10:51:28 3394967
272kpc0q766tx 38 1690776192 2018-10-23/11:20:35 2021-04-24/16:02:52 43383
272kpc0q766tx 49 1690776192 2018-10-23/11:20:35 2021-07-21/18:27:05 466811
272kpc0q766tx 51 1690776192 2018-10-23/11:20:35 2021-07-21/22:27:11 5238
272kpc0q766tx 54 1690776192 2018-10-23/11:20:35 2021-08-07/22:48:03 3286771
272kpc0q766tx 56 1690776192 2018-10-23/11:20:35 2021-08-08/05:01:11 9835
272kpc0q766tx 67 1690776192 2018-10-23/11:20:35 2021-10-02/06:52:24 126753
272kpc0q766tx 68 1690776192 2018-10-23/11:20:35 2021-10-02/10:41:18 138
14 rows selected.
--- From AWR
Enter value for sql_id: 272kpc0q766tx
old 15: where sql_id = '&sql_id'
new 15: where sql_id = '272kpc0q766tx'
SQL_ID SNAP_ID PLAN_HASH_VALUE SQL_PROFILE EXECUTIONS_TOTAL
------------- ---------- --------------- -------------------------------- ----------------
272kpc0q766tx 353952 1690776192 35878169
272kpc0q766tx 355246 1690776192 37443248
SQL>
======================================================================
--- sql_history.sql for SQL_ID: 7wd9njg9sy9mk using index DINH.INFO_IX1
======================================================================
SQL> @sql_history.sql
--- From Memory
Enter value for sql_id: 7wd9njg9sy9mk
old 16: where sql_id = '&sql_id'
new 16: where sql_id = '7wd9njg9sy9mk'
no rows selected
--- From AWR
Enter value for sql_id: 7wd9njg9sy9mk
old 15: where sql_id = '&sql_id'
new 15: where sql_id = '7wd9njg9sy9mk'
no rows selected
SQL>
======================================================================
--- sql_history.sql for SQL_ID: gu9t5kgmy3pp6 using index DINH.INFO_IX1
======================================================================
SQL> @sql_history.sql
--- From Memory
Enter value for sql_id: gu9t5kgmy3pp6
old 16: where sql_id = '&sql_id'
new 16: where sql_id = 'gu9t5kgmy3pp6'
SQL_ID CHILD_NUMBER PLAN_HASH_VALUE FIRST_LOAD_TIME LAST_LOAD_TIME OUTLINE_CATEGORY SQL_PROFILE EXECUTIONS
------------- ------------ --------------- -------------------- -------------------- -------------------- -------------------------------- ----------
gu9t5kgmy3pp6 0 698638001 2018-10-23/11:20:27 2021-12-08/08:05:10 268
gu9t5kgmy3pp6 1 698638001 2018-10-23/11:20:27 2021-08-07/23:19:17 5343273
gu9t5kgmy3pp6 5 698638001 2018-10-23/11:20:27 2021-12-01/18:42:33 190004
gu9t5kgmy3pp6 23 698638001 2018-10-23/11:20:27 2021-04-24/14:27:12 5512867
gu9t5kgmy3pp6 32 698638001 2018-10-23/11:20:27 2021-07-21/19:22:08 2831328
gu9t5kgmy3pp6 39 698638001 2018-10-23/11:20:27 2021-10-02/04:16:50 287105
6 rows selected.
--- From AWR
Enter value for sql_id: gu9t5kgmy3pp6
old 15: where sql_id = '&sql_id'
new 15: where sql_id = 'gu9t5kgmy3pp6'
no rows selected
SQL>UPDATE for sql_id 7wd9njg9sy9mk:
sql_id 7wd9njg9sy9mk exist from gv$sql_plan and dba_hist_sql_plan (using find-index-sql.sql)
but not from v$sql and dba_hist_sqlstat (using Doc ID 1371778.1) which is strange.
Manually checking using DBMS_XPLAN.display_cursor and dbms_xplan.display_awr shows:
SQL> SELECT * FROM TABLE(DBMS_XPLAN.display_cursor(sql_id=>'7wd9njg9sy9mk',format=>'ALLSTATS LAST +cost +bytes'));
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------
SQL_ID: 7wd9njg9sy9mk, child number: 0 cannot be found
Elapsed: 00:00:00.00
SQL>
SQL> SELECT * FROM TABLE(dbms_xplan.display_awr('7wd9njg9sy9mk'));
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------
SQL_ID 7wd9njg9sy9mk
--------------------
An uncaught error happened in prepare_sql_statement : ORA-01403: no data found
Plan hash value: 1635894828
-----------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
-----------------------------------------------------------------------------------------------
| 0 | DELETE STATEMENT | | | | 538 (100)| |
| 1 | DELETE | *******_UPDATE_INFO | | | | |
| 2 | COUNT STOPKEY | | | | | |
| 3 | NESTED LOOPS | | 50M| 958M| 538 (100)| 00:00:07 |
| 4 | INDEX FULL SCAN | SYS_C00137313 | 50M| 620M| 4 (0)| 00:00:01 |
| 5 | INDEX RANGE SCAN| **************_INFO_IX1 | 1 | 7 | 1 (0)| 00:00:01 |
-----------------------------------------------------------------------------------------------
Note
-----
- dynamic sampling used for this statement (level=2)
21 rows selected.
Elapsed: 00:00:00.03
SQL>