Thank you, Sayan! It seems that I misunderstood that it worked in 11.2.0.4
(https://twitter.com/JLOracle/status/566042653309927424)
Thanks,
Amir
From: Sayan Malakshinov <xt.and.r@xxxxxxxxx>
Sent: Friday, November 5, 2021 11:20 PM
To: Hameed, Amir <amir.hameed@xxxxxxxxxxxxxxx>
Cc: ORACLE-L <oracle-l@xxxxxxxxxxxxx>
Subject: [EXTERNAL] Re: ENABLE_PARALLEL_DML hint in 11g
CAUTION: External source
Hi Amir,
ENABLE_PARALLEL_DML was introduced in oracle 12.1, so it doesn't work on
11.2.0.4
Best regards,
Sayan Malakshinov
Oracle performance tuning expert
Oracle Database Developer Choice Award winner
Oracle ACE
http://orasql.org<https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Forasql.org%2F&data=04%7C01%7Camir.hameed%40sleepnumber.com%7C19554eeae5f344958ef108d9a0d45b41%7Ced8aabd514de49829fb6d6528851af5e%7C0%7C0%7C637717656210686511%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=8WHvd9WuF2L6KxpXIQ4qFGLQO8lhL%2B7%2B%2BfucPXP97oQ%3D&reserved=0>
сб, 6 нояб. 2021 г., 6:16 Hameed, Amir
<amir.hameed@xxxxxxxxxxxxxxx<mailto:amir.hameed@xxxxxxxxxxxxxxx>>:
Hi,
The database version is 11.2.0.4. I am trying to modify a MERGE statement by
creating a SQL baseline and introducing parallelism through hints as shown
below:
-------------------------------------
MERGE /*+ enable_parallel_dml parallel(LOG,4) */ INTO CN_NOTIFY_LOG_ALL
LOG USING CN_PROCESS_BATCHES_ALL BATCH ON ( BATCH.PHYSICAL_BATCH_ID =
:B1 AND BATCH.ORG_ID = LOG.ORG_ID AND BATCH.SALESREP_ID =
LOG.SALESREP_ID AND LOG.PERIOD_ID BETWEEN BATCH.PERIOD_ID AND
BATCH.END_PERIOD_ID AND LOG.START_DATE >= BATCH.START_DATE) WHEN
MATCHED THEN UPDATE SET LOG.STATUS = 'COMPLETE' WHERE LOG.STATUS =
'INCOMPLETE'
;
When the statement is run through SQL*Plus via a script, parallelism is
working. However, it is not working when adding the above hints by using the
SQL baseline method. Is there any special required for SQL baselines when
parallelizing DML operations?
Thank,
Amir
