Answer / nitin

Create two mapping pipelines
One pipeline is to
1) Break the record 1|A,1|B,1|C,1|D,2|A,2|B,3|A,3|B using normalizer transformation
1|A
1|B
1|C
1|D
2|A
2|B
3|A
3|B
Then pass the records into a flat file target.

Source-->SQ-->Normaliser--> Target (Output_file1)
Output_file1-->SQ--> Aggregator-->Target(Output_file2)


Create another mapping pipeline where the above records act as the source and the delimiter as '|'.
Use an aggregator transformation to group based on the first column and use the SUM(col2) GROUP BY col1.
write the output to the target file with | as delimiter

Answer / nitin

1) Src-->SQ->Normalizer-->Target
The first pipeline breaks the rows and convert to columns and then write to target file.
1|A
1|B
1|C
1|D
2|A
2|B
3|A
3|B

2)Src->SQ->Exp->Target
The second pipeline receives the above output with '|' as delimiter and passes to expression.
In the expression transformation concatenate the second column with + for the same first column and then write to target with | as delimiter

Answer / ankit kansal

There is only one row as per the defined problem. so first you have to break down this one row into multiple rows as separated by delimiter ','.
1|A
1|B
1|C
1|D
2|A...
Now in Expression Transformation using some string functions and later using rank/aggregator T/S you can achieve your result...

http://deepinopensource.blogspot.in

Answer / amedela chandra sekhar

By using aggregator t/r we can achieve.
use || function

Answer / guest

Aggregator with group by on column with values 1, 2, 3

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I have id, seq_no date, bill_amt and weight 1,11,'01-Jan-2014',100,2 2,12,'01-Jan-2014',40,5 3,13,'01-Jan-2014',32,5 4,14,'01-Jan-2014',98,2 5,15,'01-Jan-2014',105,3 6,16,'01-Jan-2014',11,3 1,11,'02-Jan-2014',40,2 2,12,'02-Jan-2014',100,5 3,13,'02-Jan-2014',132,5 4,14,'02-Jan-2014',198,2 5,15,'02-Jan-2014',15,3 6,16,'02-Jan-2014',16,3 Now I need output as date MXAMT_LSTWGHT MINAMT_GRTWGHT 01-Jan-2014 100 32 02-Jan-2014 198 100 Could not think of mapping to do so. Please help

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