How to delete duplicate records if we have huge volume of
records in a table ?
(rowid is not the correct approach)

Answer Posted / chandrasekar

First we can count the no of records using aggregator
Transformation with group by (port) for ex, in emp table
take empno. Second we can take the Filter condition like
count=1. Other records are rejected not loaded into the target.

Hope it will help little bit...

Is This Answer Correct ?    1 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

State the limitations where we cannot use joiner in the mapping pipeline?

543


server hot-ws270 is connect to Repository B. What does it mean?

1853


Performance tuning( what you did in performance tuning)

1483


If informatica has its scheduler why using third party scheduler?

773


What is the format of informatica objects in a repository?

596






Enlist few areas or real-time situations where informatica is required.

588


What is the benefit of session partitioning?

589


What is the difference between router and filter?

645


can we override a native sql query within informatica? Where do we do it? How do we do it?

595


Differentiate between sessions and batches?

570


Explain informatica architecture - version 8 / 9

665


What are the different versions of informatica?

674


How to implement security measures using repository manager?

600


What is the session task and command task?

593


What are the different clients of powercenter?

594