Answer / pradeeshkumar

Loading duplicate records into a target table which has a
primary key is just a height of Brain failure.
The concept of primary key itself fails. If you still want
to insert it, better don't have any primary key

Answer / jay

Is that primary key column in the target is different,
than this is called surrogate key which is obtained
from Sequential generator (with or without combination of
key value from source. if combined with source primary key
column, then it is known as creating frequency for
each source primary column value)

What is an incremental loading? in which situations we will use incremental loading

2 Answers   HCL,

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what is DSS?

3 Answers  

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difference between informatica 8.1.1 and 8.6? And different betweeninformatica 7x and 8x?

1 Answers   HTC, TCS,

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Had any one faced informatica(ETL/Developer), Datawarehouseing interview in UK. Than plz help me (i have any exprience of 3yrs informatica,datawarehousing,oracle,teradata) 1.hw the procedure will b here 2. wht type of question's they will b asking. 3.In which area they concertate more. since this is the first time im facing interview in UK. plz help ASAP.it will b a great help for me thanks to All in Advance

2 Answers  

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Data is passed from one active trans and one passive trans into a passive transformation.Is the mapping valid or invalid?

18 Answers   L&T,

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I have worked on Informatica 7.1.1. I want to know the answer for the below question. Target is not created initially.Then how to take the DDL script from the source and run the Mapping by creating the Target dynamically?Is it possible by SQL Transformation?

0 Answers  

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How can the following be achieved in 1 single Informatica Mapping. * If the Header table record has error value(NULL) then those records and the corresponding child records in the SUBHEAD and DETAIL tables should also not be loaded into the target(TARGET1,TARGET 2 or TARGET3). * If the HEADER table record is valid, but the SUBHEAD or DETAIL table record has an error value (NULL) then the no data should be loaded into the target TARGET1,TARGET 2 or TARGET3. * If the HEADER table record is valid and the SUBHEAD or DETAIL table record also has valid records only then the data should be loaded into the target TARGET1,TARGET 2 and TARGET3. =================================================== HEADER COL1 COL2 COL3 COL5 COL6 1 ABC NULL NULL CITY1 2 XYZ 456 TUBE CITY2 3 GTD 564 PIN CITY3 SUBHEAD COL1 COL2 COL3 COL5 COL6 1 1001 VAL3 748 543 1 1002 VAL4 33 22 1 1003 VAL6 23 11 2 2001 AAP1 334 443 2 2002 AAP2 44 22 3 3001 RAD2 NULL 33 3 3002 RAD3 NULL 234 3 3003 RAD4 83 31 DETAIL COL1 COL2 COL3 COL5 COL6 1 D001 TXX2 748 543 1 D002 TXX3 33 22 1 D003 TXX4 23 11 2 D001 PXX2 56 224 2 D002 PXX3 666 332 ======================================================== TARGET1 2 XYZ 456 TUBE CITY2 TARGET2 2 2001 AAP1 334 443 2 2002 AAP2 44 22 TARGET3 2 D001 PXX2 56 224 2 D002 PXX3 666 332

3 Answers   IBM, Mphasis,

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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,

1 Answers   Amdocs,

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Please let me know how to make encryption and decryption with example?

0 Answers  

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How to elaborate powercenter integration service?

0 Answers  

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Update strategy transformation is an active transformation.How it changes the number of records that pass through it? Please explain....

2 Answers  

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Which one is better performance wise connected/un-connected lkp?why?

2 Answers   HCL, TCS,

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