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Monday, 21 September 2015

DataStage Scenario #5 - Oracle Rank & Rownum



Scenario:

a. Design a job where we read the data from squential file.
b. Analyze the data into job and generate these 3 columns



Example Input:

Data
Gama
Charlie
Alpha
Beta
Alpha
Charlie
Delta
Alpha

Output Expected:

Data  ROW_NUMBER   RANK   DENSE_RANK 
Alpha            1      1            1
Alpha            2      1            1
Alpha            3      1            1
Beta            4      4            2
Charlie            5      5            3
Charlie            6      5            3
Delta            7      7            4
Gama            8      8            5



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