SQL Performance (MOSC)

MOSC Banner

Ran in minutes in 11GR2 now takes hours in 12.1.0.2

edited Sep 2, 2015 6:35AM in SQL Performance (MOSC) 11 commentsAnswered


We use QlikView to extract data from our E Business Suite database and have been doing so successfully for a while. However since I upgraded the database to 12c one or two of the extracting jobs are no longer completing.

I have run Gather Schema Stats and Even Gather Table Stats through the application (FND_STATS) and this hasn't made a difference. As far as I am aware the database startup parameters haven't changed.

What advise would you give to troubleshoot a poorly performing query in 12c. Are there any new features to simplify the process?

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