Oracle 使用coe_xfr_sql_profile.sql迁移执行计划
前面 Oracle 如何不改变SQL为其绑定构造的执行计划 介绍了不改变sql语句而替换其执行计划的方法，但有一个问题是里面的方法都需要执行计划和目标sql在库中cache或AWR中存在，否则无法使用。
一、 问题背景
来看这样一个场景，有一个sql在测试环境执行很快，但在生产环境中执行很慢并且没有过好的执行计划。另外该sql特别复杂，难以通过简单分析判断出通过加哪些hint能生成出快的执行计划。
能否把测试环境中快的执行计划迁移到生产环境中给问题sql绑定？
二、 解决方法
coe_xfr_sql_profile.sql 就特别适合这种场景，它有coe_load_sql_profile.sql 的功能且更强大，不过使用方法较复杂且容易出错，同一库中的sql执行计划绑定不建议使用。
下面是简化版的案例
1. 查看不同环境sql的sql_id及执行计划
-- 测试环境，SQL_ID 4hpk08j31nm7y
select * from scott.emp where deptno=30;
Plan hash value: 1404472509
------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | | | 2 (100)| |
| 1 | TABLE ACCESS BY INDEX ROWID| EMP | 6 | 228 | 2 (0)| 00:00:01 |
|* 2 | INDEX RANGE SCAN | INDEX_EMP_DEPTNO | 6 | | 1 (0)| 00:00:01 |
------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
2 - access("DEPTNO"=30)
-- 生产环境，SQL_ID 4hpk08j31nm7y
select * from scott.emp where deptno=30
Plan hash value: 3956160932
--------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
--------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | | | 3 (100)| |
|* 1 | TABLE ACCESS FULL| EMP | 6 | 228 | 3 (0)| 00:00:01 |
--------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
1 - filter("DEPTNO"=30)
2. 生产环境运行coe_xfr_sql_profile脚本绑定执行计划（慢）
@coe_xfr_sql_profile.SQL
Parameter 1:
SQL_ID (required)
输入 1 的值: 4hpk08j31nm7y
PLAN_HASH_VALUE AVG_ET_SECS
--------------- -----------
3956160932 .041
Parameter 2:
PLAN_HASH_VALUE (required)
输入 2 的值: 3956160932
Values passed to coe_xfr_sql_profile:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SQL_ID : "4hpk08j31nm7y"
PLAN_HASH_VALUE: "3956160932 "
SQL>BEGIN
2 IF :sql_text IS NULL THEN
3 RAISE_APPLICATION_ERROR(-20100, 'SQL_TEXT for SQL_ID &&sql_id. was not found in memory (gv$sqltext_with_newlines) or AWR (dba_hist_sqltext).');
4 END IF;
5 END;
6 /
SQL>SET TERM OFF;
SQL>BEGIN
2 IF :other_xml IS NULL THEN
3 RAISE_APPLICATION_ERROR(-20101, 'PLAN for SQL_ID &&sql_id. and PHV &&plan_hash_value. was not found in memory (gv$sql_plan) or AWR (dba_hist_sql_plan).');
4 END IF;
5 END;
6 /
SQL>SET TERM OFF;
Execute coe_xfr_sql_profile_4hpk08j31nm7y_3956160932.sql
on TARGET system in order to create a custom SQL Profile
with plan 3956160932 linked to adjusted sql_text.
COE_XFR_SQL_PROFILE completed.
3. 测试环境运行coe_xfr_sql_profile脚本绑定执行计划（快）
SQL>@coe_xfr_sql_profile.SQL 4hpk08j31nm7y
Parameter 1:
SQL_ID (required)
PLAN_HASH_VALUE AVG_ET_SECS
--------------- -----------
1404472509 .001
Parameter 2:
PLAN_HASH_VALUE (required)
输入 2 的值: 1404472509
Values passed to coe_xfr_sql_profile:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SQL_ID : "4hpk08j31nm7y"
PLAN_HASH_VALUE: "1404472509"
SQL>BEGIN
2 IF :sql_text IS NULL THEN
3 RAISE_APPLICATION_ERROR(-20100, 'SQL_TEXT for SQL_ID &&sql_id. was not found in memory (gv$sqltext_with_newlines) or AWR (dba_hist_sqltext).');
4 END IF;
5 END;
6 /
SQL>SET TERM OFF;
SQL>BEGIN
2 IF :other_xml IS NULL THEN
3 RAISE_APPLICATION_ERROR(-20101, 'PLAN for SQL_ID &&sql_id. and PHV &&plan_hash_value. was not found in memory (gv$sql_plan) or AWR (dba_hist_sql_plan).');
4 END IF;
5 END;
6 /
SQL>SET TERM OFF;
Execute coe_xfr_sql_profile_4hpk08j31nm7y_1404472509.sql
on TARGET system in order to create a custom SQL Profile
with plan 1404472509 linked to adjusted sql_text.
COE_XFR_SQL_PROFILE completed.
4. 替换outline data
查看测试环境生成的coe_xfr_sql_profile_4hpk08j31nm7y_1404472509.sql文件内容，找到以下部分
h := SYS.SQLPROF_ATTR(
q'[BEGIN_OUTLINE_DATA]',
q'[IGNORE_OPTIM_EMBEDDED_HINTS]',
q'[OPTIMIZER_FEATURES_ENABLE('11.2.0.3')]',
q'[DB_VERSION('11.2.0.3')]',
q'[OPT_PARAM('optimizer_dynamic_sampling' 0)]',
q'[OPT_PARAM('optimizer_index_cost_adj' 500)]',
q'[ALL_ROWS]',
q'[OUTLINE_LEAF(@"SEL$1")]',
q'[INDEX_RS_ASC(@"SEL$1" "EMP"@"SEL$1" ("EMP"."DEPTNO"))]',
q'[END_OUTLINE_DATA]');
查看生产环境生成的coe_xfr_sql_profile_4hpk08j31nm7y_3956160932.sql文件内容，也找到以下部分
h := SYS.SQLPROF_ATTR(
q'[BEGIN_OUTLINE_DATA]',
q'[IGNORE_OPTIM_EMBEDDED_HINTS]',
q'[OPTIMIZER_FEATURES_ENABLE('11.2.0.3')]',
q'[DB_VERSION('11.2.0.3')]',
q'[OPT_PARAM('optimizer_dynamic_sampling' 0)]',
q'[OPT_PARAM('optimizer_index_cost_adj' 500)]',
q'[ALL_ROWS]',
q'[OUTLINE_LEAF(@"SEL$1")]',
q'[FULL(@"SEL$1" "EMP"@"SEL$1")]',
q'[END_OUTLINE_DATA]');使用测试环境环境的这部分内容替换生产环境部分（复制粘贴即可）
5. 生产环境执行替换后脚本
生产环境执行替换后的coe_xfr_sql_profile_4hpk08j31nm7y_3956160932.sql 脚本
SQL>@coe_xfr_sql_profile_4hpk08j31nm7y_3956160932.sql
SQL>REM
SQL>REM $Header: 215187.1 coe_xfr_sql_profile_4hpk08j31nm7y_3956160932.sql 11.4.3.5 2016/06/20 carlos.sierra $
SQL>REM
SQL>REM Copyright (c) 2000-2011, Oracle Corporation. All rights reserved.
SQL>REM
SQL>REM AUTHOR
SQL>REM [email protected]
SQL>REM
SQL>REM SCRIPT
SQL>REM coe_xfr_sql_profile_4hpk08j31nm7y_3956160932.sql
SQL>REM
SQL>REM DESCRIPTION
SQL>REM This script is generated by coe_xfr_sql_profile.sql
SQL>REM It contains the SQL*Plus commands to create a custom
SQL>REM SQL Profile for SQL_ID 4hpk08j31nm7y based on plan hash
SQL>REM value 3956160932.
SQL>REM The custom SQL Profile to be created by this script
SQL>REM will affect plans for SQL commands with signature
SQL>REM matching the one for SQL Text below.
SQL>REM Review SQL Text and adjust accordingly.
SQL>REM
SQL>REM PARAMETERS
SQL>REM None.
SQL>REM
SQL>REM EXAMPLE
SQL>REM SQL> START coe_xfr_sql_profile_4hpk08j31nm7y_3956160932.sql;
SQL>REM
SQL>REM NOTES
SQL>REM 1. Should be run as SYSTEM or SYSDBA.
SQL>REM 2. User must have CREATE ANY SQL PROFILE privilege.
SQL>REM 3. SOURCE and TARGET systems can be the same or similar.
SQL>REM 4. To drop this custom SQL Profile after it has been created:
SQL>REM EXEC DBMS_SQLTUNE.DROP_SQL_PROFILE('coe_4hpk08j31nm7y_3956160932');
SQL>REM 5. Be aware that using DBMS_SQLTUNE requires a license
SQL>REM for the Oracle Tuning Pack.
SQL>REM
SQL>WHENEVER SQLERROR EXIT SQL.SQLCODE;
SQL>REM
SQL>VAR signature NUMBER;
SQL>REM
SQL>DECLARE
2 sql_txt CLOB;
3 h SYS.SQLPROF_ATTR;
4 BEGIN
5 sql_txt := q'[
6 select * from scott.emp where deptno=30
7 ]';
8 h := SYS.SQLPROF_ATTR(
9 q'[BEGIN_OUTLINE_DATA]',
10 q'[IGNORE_OPTIM_EMBEDDED_HINTS]',
11 q'[OPTIMIZER_FEATURES_ENABLE('11.2.0.3')]',
12 q'[DB_VERSION('11.2.0.3')]',
13 q'[OPT_PARAM('optimizer_dynamic_sampling' 0)]',
14 q'[OPT_PARAM('optimizer_index_cost_adj' 500)]',
15 q'[ALL_ROWS]',
16 q'[OUTLINE_LEAF(@"SEL$1")]',
17 q'[INDEX_RS_ASC(@"SEL$1" "EMP"@"SEL$1" ("EMP"."DEPTNO"))]',
18 q'[END_OUTLINE_DATA]');
19 :signature := DBMS_SQLTUNE.SQLTEXT_TO_SIGNATURE(sql_txt);
20 DBMS_SQLTUNE.IMPORT_SQL_PROFILE (
21 sql_text => sql_txt,
22 profile => h,
23 name => 'coe_4hpk08j31nm7y_3956160932',
24 description => 'coe 4hpk08j31nm7y 3956160932 '||:signature||'',
25 category => 'DEFAULT',
26 validate => TRUE,
27 replace => TRUE,
28 force_match => FALSE /* TRUE:FORCE (match even when different literals in SQL). FALSE:EXACT (similar to CURSOR_SHARING) */ );
29 END;
30 /
PL/SQL 过程已成功完成。
SQL>WHENEVER SQLERROR CONTINUE
SQL>SET ECHO OFF;
SIGNATURE
---------------------
7148830044791940844
... manual custom SQL Profile has been created
COE_XFR_SQL_PROFILE_4hpk08j31nm7y_3956160932 completed
6. 生产环境再次执行语句
select * from scott.emp where deptno=30
select * from table(dbms_xplan.display_cursor(null,null))
SQL_ID 4hpk08j31nm7y, child number 0
-------------------------------------
select * from scott.emp where deptno=30
Plan hash value: 1404472509
------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | | | 10 (100)| |
| 1 | TABLE ACCESS BY INDEX ROWID| EMP | 6 | 228 | 10 (0)| 00:00:01 |
|* 2 | INDEX RANGE SCAN | INDEX_EMP_DEPTNO | 6 | | 5 (0)| 00:00:01 |
------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
2 - access("DEPTNO"=30)
Note
-----
- SQL profile coe_4hpk08j31nm7y_3956160932 used for this statement偷梁换柱成功。COE_XFR_SQL_PROFILE.SQL文件在sqlt的安装包中有，如果不想另外下载，以下提供该脚本内容：
SPO coe_xfr_sql_profile.log;
SET DEF ON TERM OFF ECHO ON FEED OFF VER OFF HEA ON LIN 2000 PAGES 100 LONG 8000000 LONGC 800000 TRIMS ON TI OFF TIMI OFF SERVEROUT ON SIZE 1000000 NUMF "" SQLP SQL>;
SET SERVEROUT ON SIZE UNL;
REM
REM $Header: 215187.1 coe_xfr_sql_profile.sql 11.4.3.5 2011/08/10 carlos.sierra $
REM
REM Copyright (c) 2000-2011, Oracle Corporation. All rights reserved.
REM
REM AUTHOR
REM [email protected]
REM
REM SCRIPT
REM coe_xfr_sql_profile.sql
REM
REM DESCRIPTION
REM This script generates another that contains the commands to
REM create a manual custom SQL Profile out of a known plan from
REM memory or AWR. The manual custom profile can be implemented
REM into the same SOURCE system where the plan was retrieved,
REM or into another similar TARGET system that has same schema
REM objects referenced by the SQL that generated the known plan.
REM
REM PRE-REQUISITES
REM 1. Oracle Tuning Pack license.
REM
REM PARAMETERS
REM 1. SQL_ID (required)
REM 2. Plan Hash Value for which a manual custom SQL Profile is
REM needed (required). A list of known plans is presented.
REM
REM EXECUTION
REM 1. Connect into SQL*Plus as SYSDBA or user with access to
REM data dictionary.
REM 2. Execute script coe_xfr_sql_profile.sql passing SQL_ID and
REM plan hash value (parameters can be passed inline or until
REM requested).
REM
REM EXAMPLE
REM # sqlplus system
REM SQL> START coe_xfr_sql_profile.sql [SQL_ID] [PLAN_HASH_VALUE];
REM SQL> START coe_xfr_sql_profile.sql gnjy0mn4y9pbm 2055843663;
REM SQL> START coe_xfr_sql_profile.sql gnjy0mn4y9pbm;
REM SQL> START coe_xfr_sql_profile.sql;
REM
REM NOTES
REM 1. For possible errors see coe_xfr_sql_profile.log
REM 2. If SQLT is installed in SOURCE, you can use instead:
REM sqlt/utl/sqltprofile.sql
REM 3. Be aware that using DBMS_SQLTUNE requires a license for
REM Oracle Tuning Pack.
REM
SET TERM ON ECHO OFF;
PRO
PRO Parameter 1:
PRO SQL_ID (required)
PRO
DEF sql_id = '&1';
PRO
WITH
p AS (
SELECT plan_hash_value
FROM gv$sql_plan
WHERE sql_id = TRIM('&&sql_id.')
AND other_xml IS NOT NULL
UNION
SELECT plan_hash_value
FROM dba_hist_sql_plan
WHERE sql_id = TRIM('&&sql_id.')
AND other_xml IS NOT NULL ),
m AS (
SELECT plan_hash_value,
SUM(elapsed_time)/SUM(executions) avg_et_secs
FROM gv$sql
WHERE sql_id = TRIM('&&sql_id.')
AND executions > 0
GROUP BY
plan_hash_value ),
a AS (
SELECT plan_hash_value,
SUM(elapsed_time_total)/SUM(executions_total) avg_et_secs
FROM dba_hist_sqlstat
WHERE sql_id = TRIM('&&sql_id.')
AND executions_total > 0
GROUP BY
plan_hash_value )
SELECT p.plan_hash_value,
ROUND(NVL(m.avg_et_secs, a.avg_et_secs)/1e6, 3) avg_et_secs
FROM p, m, a
WHERE p.plan_hash_value = m.plan_hash_value(+)
AND p.plan_hash_value = a.plan_hash_value(+)
ORDER BY
avg_et_secs NULLS LAST;
PRO
PRO Parameter 2:
PRO PLAN_HASH_VALUE (required)
PRO
DEF plan_hash_value = '&2';
PRO
PRO Values passed to coe_xfr_sql_profile:
PRO ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PRO SQL_ID : "&&sql_id."
PRO PLAN_HASH_VALUE: "&&plan_hash_value."
PRO
SET TERM OFF ECHO ON;
WHENEVER SQLERROR EXIT SQL.SQLCODE;
-- trim parameters
COL sql_id NEW_V sql_id FOR A30;
COL plan_hash_value NEW_V plan_hash_value FOR A30;
SELECT TRIM('&&sql_id.') sql_id, TRIM('&&plan_hash_value.') plan_hash_value FROM DUAL;
VAR sql_text CLOB;
VAR other_xml CLOB;
EXEC :sql_text := NULL;
EXEC :other_xml := NULL;
-- get sql_text from memory
DECLARE
l_sql_text VARCHAR2(32767);
BEGIN -- 10g see bug 5017909
FOR i IN (SELECT DISTINCT piece, sql_text
FROM gv$sqltext_with_newlines
WHERE sql_id = TRIM('&&sql_id.')
ORDER BY 1, 2)
LOOP
IF :sql_text IS NULL THEN
DBMS_LOB.CREATETEMPORARY(:sql_text, TRUE);
DBMS_LOB.OPEN(:sql_text, DBMS_LOB.LOB_READWRITE);
END IF;
l_sql_text := REPLACE(i.sql_text, CHR(00), ' ');
DBMS_LOB.WRITEAPPEND(:sql_text, LENGTH(l_sql_text), l_sql_text);
END LOOP;
IF :sql_text IS NOT NULL THEN
DBMS_LOB.CLOSE(:sql_text);
END IF;
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE('getting sql_text from memory: '||SQLERRM);
:sql_text := NULL;
END;
/
-- get sql_text from awr
BEGIN
IF :sql_text IS NULL OR NVL(DBMS_LOB.GETLENGTH(:sql_text), 0) = 0 THEN
SELECT REPLACE(sql_text, CHR(00), ' ')
INTO :sql_text
FROM dba_hist_sqltext
WHERE sql_id = TRIM('&&sql_id.')
AND sql_text IS NOT NULL
AND ROWNUM = 1;
END IF;
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE('getting sql_text from awr: '||SQLERRM);
:sql_text := NULL;
END;
/
SELECT :sql_text FROM DUAL;
-- validate sql_text
SET TERM ON;
BEGIN
IF :sql_text IS NULL THEN
RAISE_APPLICATION_ERROR(-20100, 'SQL_TEXT for SQL_ID &&sql_id. was not found in memory (gv$sqltext_with_newlines) or AWR (dba_hist_sqltext).');
END IF;
END;
/
SET TERM OFF;
-- to avoid errors when sql_text lacks LFs and is more than 2000 bytes
BEGIN
:sql_text := REPLACE(:sql_text, ')', ')'||CHR(10));
:sql_text := REPLACE(:sql_text, ',', ','||CHR(10));
-- remove consecutive LFs
:sql_text := REPLACE(:sql_text, CHR(10)||CHR(10)||CHR(10)||CHR(10)||CHR(10), CHR(10));
:sql_text := REPLACE(:sql_text, CHR(10)||CHR(10)||CHR(10), CHR(10));
:sql_text := REPLACE(:sql_text, CHR(10)||CHR(10), CHR(10));
END;
/
SELECT :sql_text FROM DUAL;
-- get other_xml from memory
BEGIN
FOR i IN (SELECT other_xml
FROM gv$sql_plan
WHERE sql_id = TRIM('&&sql_id.')
AND plan_hash_value = TO_NUMBER(TRIM('&&plan_hash_value.'))
AND other_xml IS NOT NULL
ORDER BY
child_number, id)
LOOP
:other_xml := i.other_xml;
EXIT; -- 1st
END LOOP;
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE('getting other_xml from memory: '||SQLERRM);
:other_xml := NULL;
END;
/
-- get other_xml from awr
BEGIN
IF :other_xml IS NULL OR NVL(DBMS_LOB.GETLENGTH(:other_xml), 0) = 0 THEN
FOR i IN (SELECT other_xml
FROM dba_hist_sql_plan
WHERE sql_id = TRIM('&&sql_id.')
AND plan_hash_value = TO_NUMBER(TRIM('&&plan_hash_value.'))
AND other_xml IS NOT NULL
ORDER BY
id)
LOOP
:other_xml := i.other_xml;
EXIT; -- 1st
END LOOP;
END IF;
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE('getting other_xml from awr: '||SQLERRM);
:other_xml := NULL;
END;
/
SELECT :other_xml FROM DUAL;
-- validate other_xml
SET TERM ON;
BEGIN
IF :other_xml IS NULL THEN
RAISE_APPLICATION_ERROR(-20101, 'PLAN for SQL_ID &&sql_id. and PHV &&plan_hash_value. was not found in memory (gv$sql_plan) or AWR (dba_hist_sql_plan).');
END IF;
END;
/
SET TERM OFF;
-- generates script that creates sql profile in target system:
SET ECHO OFF;
PRO coe_xfr_sql_profile_&&sql_id._&&plan_hash_value..sql.
SET FEED OFF LIN 666 TRIMS ON TI OFF TIMI OFF SERVEROUT ON SIZE 1000000 FOR WOR;
SET SERVEROUT ON SIZE UNL FOR WOR;
SPO OFF;
SPO coe_xfr_sql_profile_&&sql_id._&&plan_hash_value..sql;
DECLARE
l_pos NUMBER;
l_hint VARCHAR2(32767);
BEGIN
DBMS_OUTPUT.PUT_LINE('SPO coe_xfr_sql_profile_&&sql_id._&&plan_hash_value..log;');
DBMS_OUTPUT.PUT_LINE('SET ECHO ON TERM ON LIN 2000 TRIMS ON NUMF 99999999999999999999;');
DBMS_OUTPUT.PUT_LINE('REM');
DBMS_OUTPUT.PUT_LINE('REM $Header: 215187.1 coe_xfr_sql_profile_&&sql_id._&&plan_hash_value..sql 11.4.3.5 '||TO_CHAR(SYSDATE, 'YYYY/MM/DD')||' carlos.sierra $');
DBMS_OUTPUT.PUT_LINE('REM');
DBMS_OUTPUT.PUT_LINE('REM Copyright (c) 2000-2011, Oracle Corporation. All rights reserved.');
DBMS_OUTPUT.PUT_LINE('REM');
DBMS_OUTPUT.PUT_LINE('REM AUTHOR');
DBMS_OUTPUT.PUT_LINE('REM [email protected]');
DBMS_OUTPUT.PUT_LINE('REM');
DBMS_OUTPUT.PUT_LINE('REM SCRIPT');
DBMS_OUTPUT.PUT_LINE('REM coe_xfr_sql_profile_&&sql_id._&&plan_hash_value..sql');
DBMS_OUTPUT.PUT_LINE('REM');
DBMS_OUTPUT.PUT_LINE('REM DESCRIPTION');
DBMS_OUTPUT.PUT_LINE('REM This script is generated by coe_xfr_sql_profile.sql');
DBMS_OUTPUT.PUT_LINE('REM It contains the SQL*Plus commands to create a custom');
DBMS_OUTPUT.PUT_LINE('REM SQL Profile for SQL_ID &&sql_id. based on plan hash');
DBMS_OUTPUT.PUT_LINE('REM value &&plan_hash_value..');
DBMS_OUTPUT.PUT_LINE('REM The custom SQL Profile to be created by this script');
DBMS_OUTPUT.PUT_LINE('REM will affect plans for SQL commands with signature');
DBMS_OUTPUT.PUT_LINE('REM matching the one for SQL Text below.');
DBMS_OUTPUT.PUT_LINE('REM Review SQL Text and adjust accordingly.');
DBMS_OUTPUT.PUT_LINE('REM');
DBMS_OUTPUT.PUT_LINE('REM PARAMETERS');
DBMS_OUTPUT.PUT_LINE('REM None.');
DBMS_OUTPUT.PUT_LINE('REM');
DBMS_OUTPUT.PUT_LINE('REM EXAMPLE');
DBMS_OUTPUT.PUT_LINE('REM SQL> START coe_xfr_sql_profile_&&sql_id._&&plan_hash_value..sql;');
DBMS_OUTPUT.PUT_LINE('REM');
DBMS_OUTPUT.PUT_LINE('REM NOTES');
DBMS_OUTPUT.PUT_LINE('REM 1. Should be run as SYSTEM or SYSDBA.');
DBMS_OUTPUT.PUT_LINE('REM 2. User must have CREATE ANY SQL PROFILE privilege.');
DBMS_OUTPUT.PUT_LINE('REM 3. SOURCE and TARGET systems can be the same or similar.');
DBMS_OUTPUT.PUT_LINE('REM 4. To drop this custom SQL Profile after it has been created:');
DBMS_OUTPUT.PUT_LINE('REM EXEC DBMS_SQLTUNE.DROP_SQL_PROFILE(''coe_&&sql_id._&&plan_hash_value.'');');
DBMS_OUTPUT.PUT_LINE('REM 5. Be aware that using DBMS_SQLTUNE requires a license');
DBMS_OUTPUT.PUT_LINE('REM for the Oracle Tuning Pack.');
DBMS_OUTPUT.PUT_LINE('REM');
DBMS_OUTPUT.PUT_LINE('WHENEVER SQLERROR EXIT SQL.SQLCODE;');
DBMS_OUTPUT.PUT_LINE('REM');
DBMS_OUTPUT.PUT_LINE('VAR signature NUMBER;');
DBMS_OUTPUT.PUT_LINE('REM');
DBMS_OUTPUT.PUT_LINE('DECLARE');
DBMS_OUTPUT.PUT_LINE('sql_txt CLOB;');
DBMS_OUTPUT.PUT_LINE('h SYS.SQLPROF_ATTR;');
DBMS_OUTPUT.PUT_LINE('BEGIN');
DBMS_OUTPUT.PUT_LINE('sql_txt := q''[');
WHILE NVL(LENGTH(:sql_text), 0) > 0
LOOP
l_pos := INSTR(:sql_text, CHR(10));
IF l_pos > 0 THEN
DBMS_OUTPUT.PUT_LINE(SUBSTR(:sql_text, 1, l_pos - 1));
:sql_text := SUBSTR(:sql_text, l_pos + 1);
ELSE
DBMS_OUTPUT.PUT_LINE(:sql_text);
:sql_text := NULL;
END IF;
END LOOP;
DBMS_OUTPUT.PUT_LINE(']'';');
DBMS_OUTPUT.PUT_LINE('h := SYS.SQLPROF_ATTR(');
DBMS_OUTPUT.PUT_LINE('q''[BEGIN_OUTLINE_DATA]'',');
FOR i IN (SELECT /*+ opt_param('parallel_execution_enabled', 'false') */
SUBSTR(EXTRACTVALUE(VALUE(d), '/hint'), 1, 4000) hint
FROM TABLE(XMLSEQUENCE(EXTRACT(XMLTYPE(:other_xml), '/*/outline_data/hint'))) d)
LOOP
l_hint := i.hint;
WHILE NVL(LENGTH(l_hint), 0) > 0
LOOP
IF LENGTH(l_hint) <= 500 THEN
DBMS_OUTPUT.PUT_LINE('q''['||l_hint||']'',');
l_hint := NULL;
ELSE
l_pos := INSTR(SUBSTR(l_hint, 1, 500), ' ', -1);
DBMS_OUTPUT.PUT_LINE('q''['||SUBSTR(l_hint, 1, l_pos)||']'',');
l_hint := ' '||SUBSTR(l_hint, l_pos);
END IF;
END LOOP;
END LOOP;
DBMS_OUTPUT.PUT_LINE('q''[END_OUTLINE_DATA]'');');
DBMS_OUTPUT.PUT_LINE(':signature := DBMS_SQLTUNE.SQLTEXT_TO_SIGNATURE(sql_txt);');
DBMS_OUTPUT.PUT_LINE('DBMS_SQLTUNE.IMPORT_SQL_PROFILE (');
DBMS_OUTPUT.PUT_LINE('sql_text => sql_txt,');
DBMS_OUTPUT.PUT_LINE('profile => h,');
DBMS_OUTPUT.PUT_LINE('name => ''coe_&&sql_id._&&plan_hash_value.'',');
DBMS_OUTPUT.PUT_LINE('description => ''coe &&sql_id. &&plan_hash_value. ''||:signature||'''',');
DBMS_OUTPUT.PUT_LINE('category => ''DEFAULT'',');
DBMS_OUTPUT.PUT_LINE('validate => TRUE,');
DBMS_OUTPUT.PUT_LINE('replace => TRUE,');
DBMS_OUTPUT.PUT_LINE('force_match => FALSE /* TRUE:FORCE (match even when different literals in SQL). FALSE:EXACT (similar to CURSOR_SHARING) */ );');
DBMS_OUTPUT.PUT_LINE('END;');
DBMS_OUTPUT.PUT_LINE('/');
DBMS_OUTPUT.PUT_LINE('WHENEVER SQLERROR CONTINUE');
DBMS_OUTPUT.PUT_LINE('SET ECHO OFF;');
DBMS_OUTPUT.PUT_LINE('PRINT signature');
DBMS_OUTPUT.PUT_LINE('PRO');
DBMS_OUTPUT.PUT_LINE('PRO ... manual custom SQL Profile has been created');
DBMS_OUTPUT.PUT_LINE('PRO');
DBMS_OUTPUT.PUT_LINE('SET TERM ON ECHO OFF LIN 80 TRIMS OFF NUMF "";');
DBMS_OUTPUT.PUT_LINE('SPO OFF;');
DBMS_OUTPUT.PUT_LINE('PRO');
DBMS_OUTPUT.PUT_LINE('PRO COE_XFR_SQL_PROFILE_&&sql_id._&&plan_hash_value. completed');
END;
/
SPO OFF;
SET DEF ON TERM ON ECHO OFF FEED 6 VER ON HEA ON LIN 80 PAGES 14 LONG 80 LONGC 80 TRIMS OFF TI OFF TIMI OFF SERVEROUT OFF NUMF "" SQLP SQL>;
SET SERVEROUT OFF;
PRO
PRO Execute coe_xfr_sql_profile_&&sql_id._&&plan_hash_value..sql
PRO on TARGET system in order to create a custom SQL Profile
PRO with plan &&plan_hash_value linked to adjusted sql_text.
PRO
UNDEFINE 1 2 sql_id plan_hash_value
CL COL
PRO
PRO COE_XFR_SQL_PROFILE completed.
COE_XFR_SQL_PROFILE参考 https://www.cnblogs.com/gull/p/5602166.html