Database Tuning (MOSC)

MOSC Banner

what is wrong if explain plan is same but execution time is different ?

edited Sep 8, 2011 1:08PM in Database Tuning (MOSC) 24 commentsAnswered
Hi,
I have a same queries which is unstable in production environment( 10gR2 10.2.0.4) . Query is exactly same and has the exactly same explain plan but on 2 different time it takes different time in execution and shows a different statics . Can anyone tells me what is the real issue and what could be the reason ?

Query is :
SELECT   Sum(GALAXY.COM_CUST_PROD_MONTH_FACT_AGG.SUBSCR_QUANTITY_CB),   GALAXY.PRODUCT_DIM.DRM_MARKET_PRODUCT_GROUP,   GALAXY.PRODUCT_DIM.DRM_MARKET_PRODUCT,   Sum(GALAXY.COM_CUST_PROD_MONTH_FACT_AGG.SUBSCR_PROD_QUANTITY_CB)
FROM
  GALAXY.COM_CUST_PROD_MONTH_FACT_AGG,

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