SQL Performance (MOSC)

MOSC Banner

Oracle 12c Performance issue after upgrading database from 10.2.0.5.0 to 12.1.0.2.0

edited Mar 25, 2019 5:05AM in SQL Performance (MOSC) 5 commentsAnswered

Hello,

We have upgraded Test environment Oracle database from 10.2.0.5.0 to 12.1.0.2.0 with Production data.

After upgrading the database, we are facing performance issue in few processes which are taking huge time to complete compare to older database version.

For example,

  • Facing "ORA-01722 Invalid Number" error when trying to access CHAR data type column with numeric value without quotes:

When we are executing the query on Production environment (Oracle Database 10.2.0.5), we are not getting any error while in case of this upgraded database, same query is throwing "ORA-01722 Invalid Number" error.

For example, where EMP_TYPE (CHAR(2) data type) = 1 –it is giving error

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