Hi guys,
please design job for this,
MY INPUT IS
COMPANY,LOCATION
IBM,CHENNAI
IBM,HYDRABAD
IBM,PUNE
IBM,BANGLOORE
TCS,CHENNAI
TCS,MUMBAI
TCS,BANGLOORE
WIPRO,HYDRABAD
WIPRO,CHENNAI
HSBC,PUNE
MY OUTPUT IS
COMPANY,LOCATION,COUNT
IBM,chennai,hydrabad,pune,banglore,4
TCS,chennai,mumbai,bangloore,3
WIPRO,hydrabad,chennai,2
HSBC,pune,1
Thanks
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Answer Posted / ankit gosain
Hi All,
Create a job design like below:
SeqFile--->SortStage--->Transformer--->RemoveDup--->SeqFile
Steps:
-----
1. At sort stage, take sort key = Company and sort key mode
= Don't sort (Previously Grouped) & take a
CreateClusterKeyChange column.
2. At Transformer Stage, create two stage variables:
temp of integer type with 0 as default,
temp1 of varchar type.
now, write in their derivation:
if clusterKeyChange=1 then 1 else temp+1----temp
if clusterKeyChange=1 then Location else temp1:',':Location-
---temp1
Create one o/p column (say count).
Now derive the o/p derivation columns as:
Company--------Company
temp1----------Location
temp-----------Count
3. At remove duplicate stage, take key=Company and
Duplicate to retain = Last
now just drag and drop the i/p columns to o/p derivation
& you will get the desired result.
For further queries, mail me on ankitgosain@gmail.com
Cheers,
Ankit :)
| Is This Answer Correct ? | 14 Yes | 0 No |
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