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 Informatica  |  Question 124 of 301    Print  
How a custom transformation works and what are the options and properties need to be set?

  
Total Answers and Comments: 1 Last Update: May 09, 2007     Asked by: geetham 
  
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May 09, 2007 09:53:24   #1  
SRIRAM N        

RE: How a custom transformation works and what are the...

Custom transformation

To extend the powercenter functionality by using outside developed procedures. You can create Custom transformations with multiple input and output groups

For any queries: sriram_kumar @ one...


 
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I have a flat file which i am using as my source , i want to match the records in the flat files with that of my oracle table(using cust_id field). I was advised that i should be using a look up transformation and a filter transformation for this. I am not understanding why i should be using the look up transformation. can anyone please helpThanksNayana
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Can anyone please explain how i can write a subquery in the expression editor of a filter transformation (i need the syntax to write in the expression editor)thanksnayana
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How do i get data in a unconnected lookup transformationi.e if i want to compare customer_id in the source with the customer_id in the unconnected lookup, how can i get the data from the source for the customer_id if it is an unconnected lookupthanksnayana
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View Question | Asked by : Rema

When we use only Aggregator transformation in our mapping for approx 5 milion records it takes 40-42min time but when we use it with a sorter transformation, the time reduces to 12 -13 min. We have also noticed that throughput of select statement from source was also very high. It aggregates grouped data quickly is ok but why throughput of select statement was also higher using sorter transformation?


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