Database Administration (MOSC)

MOSC Banner

Job running too long due to HWM issues on associated tables

edited Aug 5, 2020 5:02AM in Database Administration (MOSC) 16 commentsAnswered ✓

Hello there,

We have a Job that runs heavy inserts, updates and deletes on tables in the database, few of the tables are used as application temp tables as well. The issue is that during the job for any one of the statement, the optimizer will pick up bad plan (due to Cardinality misestimate) and will hang/keep running for hours. We tried gathering stats on all the associated tables just before the job, but still it didn't help. A good run for this job is 2 hours but when issue arises it runs for more than 8 hours (we kill and apply

Tagged:

Howdy, Stranger!

Log In

To view full details, sign in to My Oracle Support Community.

Register

Don't have a My Oracle Support Community account? Click here to get started.

Category Leaderboard

Top contributors this month

Instructions for posting

×

1. Select a discussion category from the picklist.


2. Enter a title that clearly identifies the subject of your question.


3. In the body, insert detailed information, including Oracle product and version.


Please abide by the Oracle Community guidelines and refrain from posting any customer or personally identifiable information (PI/CI).


Cloud / Fusion customers - Our Cloud community has moved! Please go to Cloud Customer Connect .


New to My Oracle Support Community? Visit our Welcome Center

MOSC Help Center