How to eliminate 1st and last rows from the source and load
the inbetween rows.
- 5 Answers
- 24230 Views
- Syntel, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / kamlesh mishra
The PowerCenter Server skips the specified number of rows
before reading the file. Use this to skip header
rows in the file.
And for last rows implement following logic.
1) Take sorter transformation reverse the rows on the basis of some key field like empno.
2)take expr transformation add nextval from sequence generator
3) Take filter transformation add condition nextval !=1 .
4)(optional)reverse the rows again using sorter transformation.
5) From filter to tgt connect the respective ports.
Src---->SQ--->SORTER--->EXPR---->FILTER---->SORTER---->TGT
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / allen
Skipping the firt row in a flat file is easy:
The PowerCenter Server skips the specified number of rows
before reading the file. Use this to skip title or header
rows in the file.
Skipping the last row is not as easy. In my case, the last
row was a record count. I was able to check ports that
shouldn't be null, spaces or zeros and reject the row. The
LENGTH function can also be used to check the length of
data. Delimited or not has to be considered in any checks.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / manoj subramanian
I have done it using sequence generator,rank and filter transformation.
Filtering first record:
Generated sequence no using sequence transformation and given
as input to rank transformation.In properties selected
top and no of ranks as maximum rank allowed in informatica
then followed by filter transformation with filter condition
as rankindex<>1.
Filtering last Record:
Followed by another set of rank and filter wit rank property as bottom.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / sagarreddy
in source qualifier your using this query like this u get it
easily
select rowid from tablename
minus
(select min(rowid) from tablename
union
select max(rowid) from tablename )
if u write this query will work it plz go through it
| Is This Answer Correct ? | 1 Yes | 3 No |
Answer / maneesh
To eliminate first row, simply use a counter in Expression and then Filter.
To eliminate the last row, make two pipelines with the same source
In first pipeline, use AGGREGATOR without any Group By ports In second pipeline, join it with the above with JOINER. Use and Outer Join and then other than that Joined row .. load all the rows.
| Is This Answer Correct ? | 0 Yes | 4 No |
How many ways a relational source definition can be updated and what are they?
What is rank transform?
HAI FRIENDS THIS KISHORE FROM KUMBAKONAM. I HAVE COMPLETED MY MCA IN SASTRA UNIVERSITY WAITING FOR MY 6 TH SEM RESULT.DURING MY PROJECT I HAVE DONE INFORMATICA COURSE AS MY AREA INTEREST COURSE IN CORE MIND TECHNOLOGIES CHENNAI.I HAVE ENQUIRY ABT ALL IT PEOPLE FOR DATAWAREHOUSING THERE IS NO OPENING FOR FRESHERS. WITH SOME EXPERIENCE ANY OTHER DOMAIN TNEN ONLY U CAN GET THAT DOMAIN(DATAWAREHOUSING) JOB.BUT I AM MORE INTEREST ON THAT TO WORK ON THAT DOMAIN(INFORMATICA).WHAT TO I DO. I AM IN HELPLESS FRIENDS/EXPORTS.WAITING FOR REPLY
What are the join types in joiner transformation?
what is size of u r database?
How we can create indexes after completing the load process?
any body can say about all versions of informatica ?how many versions ?
Enlist the tasks for which source qualifier transformation is used.
how can we calculate fact table size?
Dovelopment work (mapings,workflows)and unit testing also done in informatica ,then wt we do ? pls give me detail?
Aggregator transformation is having fields say a,b,c,d,e group by is enabled on a,b,c with sorted input,How the aggregator transformation process the i/p data?or in which way i/p comes to agg transformation
What is union transformation in informatica?
Teradata 
