Hi,
Lookup() is what kind of join ?

Answers were Sorted based on User's Feedback



Hi, Lookup() is what kind of join ?..

Answer / vamse

not necessarily left outer join. Its inner join most of the time.
Loop up is generally used to fetch data for a particular filter condition.(matching critria should take a particular value from it.
Main table is usually large and look up table is small in ideal scenario.

Is This Answer Correct ?    9 Yes 2 No

Hi, Lookup() is what kind of join ?..

Answer / ravikumar

Hi,
You can Say LookUp is a Left Outer join.Your Source Table is
Left side table and Lookup table is right table.
Now you are trying to get total source records and
matching records from lookup table(right table).

Hope this helpls....

ravikumar.pasupula@outlook.com

Is This Answer Correct ?    6 Yes 2 No

Hi, Lookup() is what kind of join ?..

Answer / ankit kansal

Lookup is used to check whether the row corresponding the incoming row is present or not and if yes then perform some logic and if not then do some other like we use to do it case of SCD2.
So, It is purely a left outer join where left table is your source table.
http://deepinopensource.blogspot.in/

Is This Answer Correct ?    2 Yes 0 No

Hi, Lookup() is what kind of join ?..

Answer / ashish

Lookup by default perform normal join but if you want to achieve left outer ,right outer , full outer join . you can do so by SQL override in lookup

Is This Answer Correct ?    0 Yes 0 No

Hi, Lookup() is what kind of join ?..

Answer / sunil

Lookup works as Master outer Join in informatica ..

Oracle--> its works as left outer join..

Is This Answer Correct ?    1 Yes 2 No

Hi, Lookup() is what kind of join ?..

Answer / hemant

Lookup is used to be a inner join but starting from the
version 9 it is behaving as a left outer join.

Is This Answer Correct ?    1 Yes 3 No

Post New Answer

More ETL Interview Questions

what is the indicator file and where it is used?

1 Answers  


Difference between flat files and relational sources?

0 Answers  


What is etl process? How many steps etl contains?

0 Answers  


How to increase performance without changing anything in mapping.( In prod)

0 Answers   IBM, Saama Tech, Wipro,


what are the reports developed in sap bw project and what is the requirement for developing it?

0 Answers   Maersk,






Explain about power designer data modeling software?

0 Answers  


Which transformation we use to convert 'NA' to 'Not Available'

0 Answers  


what are the facilities provided by OLAP to analytical users?

1 Answers  


What is ROWID explain ?

2 Answers   Wipro,


Explain about round-robi?

0 Answers  


what is meant by drill through?(Mascot)

1 Answers  


Informatica server and client are in different machines. You run the session from the server manager by specifying the source and target databases. It displays error . You are confident that everything is correct. Then why it is displaying the error?

0 Answers  


Categories