how can we load first and last record from a flat file source to target?

Categories >> Software >> Data Warehouse >> Informatica
Suggest New Category

how can we load first and last record from a flat file
source to target?

Question Posted / lokendra

7 Answers
29216 Views
Infosys, ITC Infotech, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

how can we load first and last record from a flat file source to target?..

Answer / srinu

I have an IDEA,
After sql Trans,go with AGG,RANK transformation,
in RankTrans Properties set the rank 1 only---1 row returns,
In AggTrans Dont do any column for Group--Last row returns,
We need 2 Target tables. 1 for 1st record,2 for last record,
if u using the UNIONtrans one Target table is enough,,,
i think it wii help u,,,,,,srinu,,,,,,,,,

Is This Answer Correct ?

13 Yes

4 No

how can we load first and last record from a flat file source to target?..

Answer / hardeep

We can use below configurations to achieve desired output. We need 1 SQ, 1 SGen, 2 Rank and 2 Trgt Defn(same Trt). I think it will be cheaper.

Src-SQualifier-->
|
Rank1(Top 1st) -->Trgt1
--->
Rank2(Bottom 1st) -->Trgt2
|
SGen(NEXTVAL)-->

Is This Answer Correct ?

14 Yes

5 No

how can we load first and last record from a flat file source to target?..

Answer / hina

Below transformation would work: Add the Nextval port of the sequence generator to both the Rank Transformations. In rank transformation select Top and Bottom resp.
------ Rank Transformation (Top)----Tgt(Ins1)
|
SQ---Sequence Generator-----
|
-------Rank Transformation(Bottom)-Tgt(Ins2)

Is This Answer Correct ?

0 Yes

0 No

how can we load first and last record from a flat file source to target?..

Answer / vinod saini

After sql Trans use AGG,JOINER transformation,and use FIRST
& LAST function in AGG transformation without any group.
FIRST & LAST return the first & Last record values. give
JOINER condition based on first & last.

Is This Answer Correct ?

4 Yes

5 No

how can we load first and last record from a flat file source to target?..

Answer / srinu

Hi,,, Vinod, As per your Solution we have to check
complete data Table for ,,

syntax for 1st,last:::

FIRST( ITEM_NAME, ITEM_PRICE > 40 )

FLOOR( PRICE )

ok,,,
Any corrections Let me Know,,,
srinu.srinuvas@gmail.com

Is This Answer Correct ?

1 Yes

5 No

how can we load first and last record from a flat file source to target?..

Answer / sudhar

Alternatively we can use the unix pre session command to
read the 1st and last record from the file and place it in
another file and use that new file as source to load the
target table.

Is This Answer Correct ?

1 Yes

6 No

how can we load first and last record from a flat file source to target?..

Answer / dharmendra

SRC QF -> SEQ -> EXP -> AGR -> RTR -> TGT
create a port in expression t/r and generate a value for
each row using SEQ genrator, then in Agr take count of all
th record.create 2 condition in in router one with SEQ = 1
and another with SEQ = count of rows (this will give last
row).connect both to target.dont forget to give reset
option in SEQ generator.

Is This Answer Correct ?

1 Yes

9 No

Post New Answer