In this post, we will check out how to move SQL baseline from One Database to Another
How to move the sql baselines in Oracle
Suppose you have created a sql baseline in System A and Now you want to transfer that sql baseline to System B.
Step 1
On System A: Creating a staging table to store the SQL baseline
exec DBMS_SPM.CREATE_STGTAB_BASELINE(table_name=>'STAGE',schema_name=>'SCOTT');
Step 2
On System A: Pack the SQL baselines into the Staging Table
Pack all baselines in the database.
set serveroutput on
DECLARE
x number;
BEGIN
x := DBMS_SPM.PACK_STGTAB_BASELINE('STAGE', 'SCOTT');
dbms_output.put_line(to_char(x) || ' plan baselines packed');
END;
/
Pack ALL Baselines Plans of a query
set serveroutput on
DECLARE
x number;
BEGIN
x := DBMS_SPM.PACK_STGTAB_BASELINE('STAGE', 'SCOTT', sql_handle => '&sql_handle');
dbms_output.put_line(to_char(x) || ' plan baselines packed');
END;
/
Pack a specific Baseline Plan of a Query
set serveroutput on
DECLARE
x number;
BEGIN
x := DBMS_SPM.PACK_STGTAB_BASELINE('STAGE', 'SCOTT', sql_handle => '&sql_handle', plan_name => '&plan_value' );
dbms_output.put_line(to_char(x) || ' plan baselines packed');
END;
/
Pack only ACCEPTED Baseline Plans of a Query
set serveroutput on
DECLARE
x number;
BEGIN
x := DBMS_SPM.PACK_STGTAB_BASELINE('STAGE', 'SCOTT', sql_handle => '&SQL_HANDLE', accepted => 'YES' );
dbms_output.put_line(to_char(x) || ' plan baselines packed');
END;
/
Step 3
On System A: Export from Source Database
$ exp scott/tiger file=stage.dmp tables=stage
Step 4
On System B: Import the staging table
$ imp scott/tiger file=stage.dmp full=y
Step 5
On System B: Unpack Staging Table
If importing to the same schema, the schema owner does not need to be specified:
SQL> EXEC DBMS_SPM.UNPACK_STGTAB_BASELINE('STAGE','SCOTT');
Step 6
On System B: Check if the baseline is enabled
SELECT sql_handle, plan_name, origin, enabled, accepted FROM dba_sql_plan_baselines;
I hope you will find this article on How to move the sql baselines useful and helpful. Please do provide the feedback
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