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

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Using Expression transformation how to remove duplicate records from a relational source?
posted Oct 13, 2015 by Sunil

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1 Answer

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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.

answer Oct 13, 2015 by Manikandan J
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Thankyou

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