Answer / rashmi garg

From source to expression connect ID, Name and Amt.
Add one sequence generator and connect to expression
now expression TF is like

expression
----------
ID
Name
Amt
Number

pass number port to aggregator TF to get the max value in
number and pass ID,Name, amt and number from exression to
router and max value from aggregator to router
now router is having ports
Id
Name
Amt
Number
Max

now route the rows on the basis of
number < max/2 (output group 1)
number > max/2 (output group 2)

Answer / honey

when u apply the procedure given by Mr.Ramesh u will get
alternative records to be stored in the two flatfiles.
Is this what u wanted.

Answer / romi

Thanks to all,

But i want to store first half data in 1 table and another
half in another table. and with procedure i m getting
alternative data.

Answer / srinivasarao dasari

Find the count of the records using `wc -l` Command and
pass this to mapping varaiable.Now you can route the data
by dividing 2.I hope this would be helpful to you.

Answer / psnadh

Hi,

In the source file if the row count is odd number,then how
can we check the condition to divide the ff into two halves?

If it is even,we can divide the ff into two halves as per
the above solutions.

Please give me reply how to implent that

Thanks in Advance

Answer / shashank

source->SQ->exp[dummyRow=1]->sorter[sort by dummyRow]->
(input to 2 transformation,pipeline branching)
1. joiner[normal join on dummyRow]
2. aggregator[no group by,add port TotalNoOfRows with
expression COUNT(dummyRow)]
Sequence generator->joiner{say port name be RowNo}
{so, joiner will get input from 3 trn, sorter, seq gen &
agg}
Joiner->exp[add port halfNo with exp iff
(RowNo<=TotalNoOfRows/2,1,2)]-> router[halfNo=1,halfNo=2]
->Target1(if halfNo=1)
->Target2(if halfNo=2)

Answer / indra

NOT GOT APPROPRIATE RESULT BY GOING THROUGH THE SOLUTION
GIVEN BY Shashank....

Answer / bsgsr

send the flat file data into an expression transformation
and create a new pory say xyz and connect nextval mport on
seq_gen to this. then connect expression to router take two
groups. using the nem port created write conditions.
newport<5 in first group ice versa. i believe this would
work

Answer / bala ramesh

in this logic , frist take one sequene genrator
transformation ,pass next value to expression
transformation and also pass id,name,and amt.
in this transformation and also create one output port
(temp).it is decimat type and write codition like
(iif(NEXTVAL %2=0,0,1)) , after take one router
transformation ,pass these ports (id,name,amt and
temp) .then create two group ,one is temp=0 and another one
is temp=1.after pass first group to one flat file ,second
group to second flat file.

Answer / sajjan

solution1:- use rank transformation, divide into two
quartiles and pass them to different targets

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