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Informatica Interview Questions
Questions Answers Views Company eMail

how to insert header after each group.

IBM,

1 3037

5. Consider the following products data which contain duplicate rows. A B C C B D B Q1. Design a mapping to load all unique products in one table and the duplicate rows in another table. The first table should contain the following output A D The second target should contain the following output B B B C C

1902

How to convert a row into column and a column into rows? Name all DTM threads. What all threads stop when we issue STOP or ABORT? How to pass the value of a data(variable kind of) from one session ( generated in mapping) to another session in the same workflow... What are the tyoes of partitioning you know and how to apply them in real time ... Can partitioning be applied to expression transformation and how

CTS,

1624

What happen if you have 3 ports in SQ and 4 ports in SQL override of SQ( provided all ports are in same order and they are connected with proper source and target)? Also what happens when I have 4 ports and will extract 3 values in SQloverride.. What will be the value in 4th port ?

CTS,

1662

how lookup transformation is made active in new versions... When to use connected and when to use unconnected lookup and why? which is good for session performance. How to make lookup persistent and how to remove stale data from that lookup. how commit works - when we stop or abort data. Explain in both cases. What is factless fact table and have you ever used it in real time scenarios.

CTS,

1688

I have 10 columns in a flat file and 10 rows corresponding to that columns. I want column number 5 and 6 for last five records. In unix as well as informtica.

CTS,

1634

What if i will group by with some port in aggregator and will not pass the sorted values. Will the session fails tell in both cases ( if i have configured it for sorted input and if i have not configured it for sorted input).

CTS,

1 2375

can i any one explain me realtime healthcare project explanation..for interview .iam new to informatica .thanks in advance.

3861

Workflow is long running due to long running sql query so when we refer the query plan it tells the issue is due to partition of the db table. How to handle this?

1667

what are all the deliverables of ETL informatica power center project? what are all updated or created by etl developer as his everyday activities?

2302

How to create the list file having millions of flat files while indirect loading in informatica? In indirect file loading, suppose we have less no.of flat files then we can enter files names manually in list file creation. If millions of files are there, how can we enter the flat file names in list file?

HP,

1971

In indirect file loading, suppose we have less no.of flat files then we can enter files names manually in list file creation. If millions of files are there, how can we enter the flat file names in list file?

HP,

1 3177

Some flat files are there, out of these having some duplicate. How do you eliminate duplicate files while loading into targets?

IBM,

1788

There are 10 flat files; out of 10 files 1 file is empty. How do you identify the empty file? How can you load all files into targets?

Accenture,

1 3403

How do you join more than 3 flat files in informatica?

ITC Infotech,

1 3170


Post New Informatica Questions

Un-Answered Questions { Informatica }

Design a mapping to load the cumulative sum of salaries of employees into target table?

1500


What is the maplet?

1112


What are the uses of etl tools?

1121


How might one distinguish in the case of mapping is right or not without associating session?

1105


How identifying bottlenecks in various components of informatica and resolving them?

1127


What are the tasks that source qualifier perform?

1095


How to load the data from people soft hrm to people soft erm using informatica?

1008


define galaxy repository in informatica

2220


Mention few power centre client applications with their basic purpose?

942


Differences between version 7.x and 8.x.

1887


rank() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid order by case when opt2.dm_market_flg in ('Y', 'U') then 1 else 2 end, lkp.contact_rank) as rank1, case opt2.contact_type when 'Buyer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, ship_to_flg desc , last_order_dt desc) when 'Decision Maker' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc , last_quote_dt desc , mailability_score desc , source_ranking desc) when 'Influencer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) when 'Payer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) --elu 05/28/2013 else row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) end rank2 row_number() over (partition by opt3.dim_plat_site_id, opt3.dim_site_opt_sid order by rank1,rank2) as "rank", case when "rank"<= opt3.maximum_value then 'Y' else 'N' end as include_flg

1968


Tell me can we override a native sql query within informatica? Where do we do it? How do we do it?

1052


In what scenario we use to improve session performance by pushdown optimization?can any one give example?

6174


What is a grid in Informatica?

1066


What are the components of Informatica? And what is the purpose of each?

1053