Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

  1. Categories >> Software >> Data Warehouse >> Informatica
  2. Suggest New Category

There are 4 flat files with number of records as indicated
below. Which files should be picked first for joining using
joiners so as to get best performance.
File A - 1000 records
File B - 100 records
File c - 10000 records
File D - 10 records

Please explain.

Thanks and Regards,

Question Posted / curiousmind23


There are 4 flat files with number of records as indicated below. Which files should be picked firs..

Answer / abhishek kumar

STEP:
1)FIRST JOIN FILE B AND FILE D HERE FILE D AS A MASTER AND
FILE B AS DETAIL.
2)THEN JOIN FILE A AS MASTER WITH OUTPUT OF STEP 1.
3)THEN JOIN FILE C AS MASTER WITH OUTPUT OF STEP 2
THIS THE RESULT.

IN JOINER
IF WE GO JOIN FOR TWO TABLE WE CHOOSE THAT TABLE AS A
MASTER WHICH CONTAIN MINIMUM RECORD OR LESS REPETION.
ACTUALLY COMPARE TO DETAIL , MASTER CACHE SIZE IS LESS.AND
OUTPUT RESULT WILL BE GO TO DETAIL

THANKS
ABHISHEK GUDDU

Is This Answer Correct ?    9 Yes 3 No

Post New Answer

More Informatica Interview Questions

How many joins in Informatica

5 Answers   CSC,

Hi, Can anyone just give me the list of all versions of Informatica ? Advance Thanks

2 Answers   IBM,

To Provide Support For Mainframes Source Data, which Files Are Used As A Source Definitions?

0 Answers   Informatica,

What is the difference between OLTP and ODS?

4 Answers  

suppose we have 1 to 10 records.In router transformation we had given two condition A>= 5 A<=5 then what will be the output?

2 Answers   emc2,

How can you recognise whether or not the newly added rows in the source r gets insert in the target ?

2 Answers  

draw informatica architecture 8.6 ?

0 Answers   Cognizant, TCS,

when we dont use aggregator in mapping ?

2 Answers   CSC,

How to use pmcmd utility command?

0 Answers  

TELL ME ABOUT WORK FLOW SCHEDULING?

3 Answers   TCS,

tell me the datawarehouse defination,and it is maintaing hystorical data meaning,what is the use

1 Answers  

If one flat file contains n number of records., we have to load the records in target from 51 to 100.. how to use expressions in Informatica..?

6 Answers  

For more Informatica Interview Questions Click Here
Categories