Hi Experts,

Performance Wise Which transformation is better in LOOKUP
AND JOINER TRansformations? Why? Can anybody please explain
it ?
Please help me out from this Question.

Thanks In Advance.

Answer Posted / raj

the lookup and joiner t/r can be used to join two sources data.
if u r using one source is flat file and another source is database source then we can use joiner is better.i.e heterogeneous join.it is not possible with the help of lookup.
if two sources are in the same database lookup is better.

Is This Answer Correct ?    5 Yes 10 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

One of the optimizing technique to improve the session performance is push down optimization,by using push down optimization we push as much as transformation logic to source/target database,but this degrades the d/b performance,how to overcome this?

1743


What is status code in informatica?

570


What is a stored procedure transformation?

603


How to elaborate powercenter integration service?

640


What are the modules in Power Center

1216






According to his methodology what all you need before you build a datawarehouse

1179


COL1,COL2 ABC,1 XYZ,2 HERE IN COL2 VALUES 1,2 NOT STSANDARD(IE MEANS NOT FIXED VALUES LIKE OTHER SOME VALUES LIKE 10,20) O/P IS COL1,COL2 ABC,2 XYZ,1

1521


Can we override a native sql query within informatica?

621


Briefly define a session task?

583


I am new to informatica and learning it,can anybody please tell me how we receive source as flat file in informatica,from where we get this flat file?

1309


What is the difference between stop and abort in informatica

652


Define update strategy?

626


Explain the different lookup methods used in informatica?

575


suppose we are using dynamic lookup cache and in lookup condition the record is succeeded but in target it is failed due to some reasons then what happened in the cache ?

6057


scenario where i can use only concurrent execution of workflow.

2528