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...


Using Expression transformation how to remove duplicate
records from a relational source?

Answers were Sorted based on User's Feedback



Using Expression transformation how to remove duplicate records from a relational source?..

Answer / prathibha

Hi,

Source->SQ->Sorter->Expression->FilterTarget.
Lets take a small example for this scenario.
Use a sorter to sort the input data.
ID Name
1 A
1 A
2 B
3 C
3 C

In Expression Transformation declare the following ports:

ID
Name
O_Count= iiF(V_port=ID,O_Count=O_count+1,O_Count=0)
V_port(Variable Port) = ID;

In filter transformation give the condition O_Count =0;
Let me know if there are any suggestions.

Is This Answer Correct ?    17 Yes 2 No

Using Expression transformation how to remove duplicate records from a relational source?..

Answer / infabee

Expression is a passive transformation. So we can't delete
any row in it. We can achive only by using an active
transformation with/without it (SQ,Filter,Agg..etc).

Is This Answer Correct ?    4 Yes 1 No

Using Expression transformation how to remove duplicate records from a relational source?..

Answer / babu

Hi,


SRC-->SQ(ENABLE DISTINCT )-->EXP-->TRG

OR
IN EXP T/R TAKE 4 VARIABLE PORTS AND OUTPUT PORT,
SRC HAVEING THE COLUMNS LIKE COL1,COL2,COL3
SRC-->SQ-->SRT(PLEASE TAKE ALL ARE KEY PORTS)-->EXP
(VAR IS IIF(VAR1=COL1 AND VAR2=COL2 AND
VAR3=COL3),1,0)
VAR1=COL1
VAR2=COL2
VAR3=COL3
OUT=VAR
-->UPD(IIF(OUT=1,DD_REJECT,DD_INSERT))-->TRG

IF ANY THING WRONG PLEASE LET ME KNOW.
8861145051

Is This Answer Correct ?    6 Yes 9 No

Using Expression transformation how to remove duplicate records from a relational source?..

Answer / bijay

The mapping should be like this
SRC->SQ->EXP->TARGET
In source qualifier transformation select 'ENABLE DISTINCT',
then it will send only distinct record to the expression transformtion. And From expression transformation simply connect to the target

Is This Answer Correct ?    2 Yes 5 No

Post New Answer

More Informatica Interview Questions

Can we schedule a workflow(not a session) to run after completition of another workflow? Can we make a workflow depend on completition of another one?

2 Answers   GE,


What is workflow monitor?

0 Answers  


SOURCE 1 a 1 b 1 c 2 a 2 b 2 c TARGET 1 A B C 2 A B C In oracle & informatica level how to achieve

4 Answers   iGate,


1)you have multiple source system where u receive files ,how do you actually load into mapping using transformation,what are the transformation you use? 2)you have files in ftp location ,how do you get it into mapping with you ETL concept?

0 Answers   Bosch,


Can we call a stored procedure from a unix script which is run using command task

1 Answers   TCS,


There are 2 files, Master and User. We need to compare 2 files and prepare a output log file which lists out missing Rolename for each UserName between Master and User file. Please find the sample data- MASTER.csv ---------- Org|Tmp_UsrID|ShortMark|Rolename ---|---------|----------|------------ AUS|0_ABC_PW |ABC PW |ABC Admin PW AUS|0_ABC_PW |ABC PW |MT Deny all GBR|0_EDT_SEC|CR Edit |Editor GBR|0_EDT_SEC|CR Edit |SEC MT103 GBR|0_EDT_SEC|CR Edit |AB User USER.csv -------- Org|UserName|ShortMark|Rolename ---|--------|---------|------------ AUS|charls |ABC PW |ABC Admin PW AUS|amudha |ABC PW |MT Deny all GBR|sandya |CR Edit |Editor GBR|sandya |CR Edit |SEC MT103 GBR|sandya |CR Edit |AB User GBR|sarkar |CR Edit |Editor GBR|sarkar |CR Edit |SEC MT103 Required Output file: --------------------- Org|Tmp_UsrID|UserName|Rolename |Code ---|---------|--------|------------|-------- AUS|0_ABC_PW |charls |ABC Admin PW|MATCH AUS|0_ABC_PW |charls |MT Deny all |MISSING AUS|0_ABC_PW |amudha |ABC Admin PW|MISSING AUS|0_ABC_PW |amudha |MT Deny all |MATCH GBR|0_EDT_SEC|sandya |Editor |MATCH GBR|0_EDT_SEC|sandya |SEC MT103 |MATCH GBR|0_EDT_SEC|sandya |AB User |MATCH GBR|0_EDT_SEC|sarkar |Editor |MATCH GBR|0_EDT_SEC|sarkar |SEC MT103 |MATCH GBR|0_EDT_SEC|sarkar |AB User |MISSING Both the files are mapped through Organization, Shor_mark. So, based on each Organization, Short_Mark, for each UserName from User.csv, we need to find the Matching and Missing Rolename. I am able to bring Matching records in the output. But really I don't find any concept or logic to achieve "MISSING" records which are present in Master and not in User.csv for each UserName. Please help out guys. Let me know if you need any more information. Note:- In User.csv file, there are n number of Organization, under which n number Shortmark comes which has n number of UserName.

0 Answers  


i having source, router transformation, two targets in my mapping... i given two conditions in router 1)sal >500 2)sal < 5000 --------------- my source is havig two sal records (1)1000 (2)2000 then which target will load first? will both targets are get load or single target only get load...... why?

9 Answers   Cap Gemini,


how do the project develops? pls specify right from the start to end in step by steps.

0 Answers   ITC Infotech,


what is incremantal aggregation?

1 Answers  


Hi, I am planning to take Infa Certification exam but am unable to find its dumps anywhere on web. If anybody has it, plz share them with me. jkinfo22@gmail.com Thanks in advance

0 Answers  


i have a source of n records.i have to load n+5 records to my target.What is the procedure??????plz tell me.....

1 Answers  


what is persistant cache in which situation we will use persistantcache

1 Answers   HCL,


Categories