Here are some beneficial Queries on Sqlplan Management in oracle
How to check the sql plan parameter
show parameter sql_plan
How to check the settings for Automatic plan capture
If OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES=true, then we can use the below query to find out the settings of the automatic plan capture
COL PARAMETER_NAME FORMAT a32
COL PARAMETER_VALUE FORMAT a32
SELECT PARAMETER_NAME, PARAMETER_VALUE
FROM DBA_SQL_MANAGEMENT_CONFIG
WHERE PARAMETER_NAME LIKE '%AUTO%';How to check the sql baseline for a sql_id
col sql_id format a14
col sql_handle format a22
col plan_name format a32
col sql_text format a40
col enabled format a8
col accepted format a8
select
DBMS_SQL_TRANSLATOR.SQL_ID(sql_text) as sql_id,
sql_handle ,
plan_name ,
enabled ,
accepted
from
dba_sql_plan_baselines
where
DBMS_SQL_TRANSLATOR.SQL_ID(sql_text) = '&sql_id';
How to check the sql baseline for a sql text
SELECT sql_handle, plan_name FROM dba_sql_plan_baselines WHERE sql_text LIKE '%YOUR_SQL_STATEMENT%';
How to check the explain plan for the Sql baseline
We can check the explain plan using the below sql statements
select * from table(dbms_xplan.display_sql_plan_baseline(plan_name=> '&sql_plan_name')); Or select * from table(dbms_xplan.display_sql_plan_baseline(sql_handle=> '&sql_handle'));
How to check if SQL baseline is used
select sql_id
, to_char(exact_matching_signature) sig
, plan_hash_value
, sql_plan_baseline
from v$sql
where sql_id = '&sql_id'
I hope you like this post on Queries on Sqlplan Management in Oracle
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