what is a parameter when and where do u them when does the
value will be created. Designing time, run time. If u don't
create parameter what will happen?
you have created a lookup transformation for a certain
condition which if true returns multiple rows. when you go
to the target and see only one row has come and not all. why
is it so and how it can be corrected.
Give a way in which u can implement a real time scenario
where data in a table is changing and u need to look up data
from it.How will u configure the look up transform for this
purpose?
22
what are business components in Informatica?
42
how would u estimate the size of Aggregator transform data
and index cache?
45
5. How many repositories can we create in Informatica?
6. What is surrogate key?
7. What is difference between Mapplet and reusable
transformation?
8. What is aggregate awareness?
9. Explain reference cursor?
10. What are parallel querys and query hints?
11. DWH architecture?
12. What are cursors?
13. Advantages of de normalized data?
14. What is operational data source (ODS)?
15. What is meta data and system catalog?
16. What is factless fact schema?
17. What is confirmed dimension?
18. What is the capacity of power cube?
19. Difference between PowerPlay transformer and power play
reports?
20. What is IQD file?
21. What is Cognos
script editor?
22. What is difference macros and prompts?
23. What is power play plug in?
24. Which kind of index is preferred in DWH?
25. What is hash partition?
26. What is DTM session?
27. How can you define a transformation? What are different
types of transformations in Informatica?
28. What is mapplet?
29. What is query panel?
30. What is a look up function? What is default
transformation for the look up function?
31. What is difference between a connected look up and
unconnected look up?
32. What is staging area?
33. What is data merging, data cleansing and sampling?
34. What is up date strategy and what are th options for
update strategy?
35. OLAP architecture?
36. What is subject area?
37. Why do we use DSS database for OLAP tools?
33
what is session partitioning?
42
A mapping contains
source table S_Time(stat_year,end_year)
target table TIM_DIM(date,day,month,year,quarter)
stored procedure transformation: A procedure has two
parameters I_end_year and output parameter as O_date ,day ,
month, year, quarter, If this session is running, how many
rows will be available in the target and why?
38
what is data modeling?
30
what is the meant by Normalization and de-normalization?
36
Can u access a repository created in previous version of
Informatica?
125
Assume u have a 24CPU machine with 24GB RAM, suggest how u
would like to configure Informatica ,like number of
concurrent sessions, RAM requirements etc,max partitions
that u would permit per mapping.
29
Identifying the bottlenecks in various components of
Informatica and resolving them.
54
how would u estimate the size of Aggregator transform data
and index cache?
35
A session S_MAP1 is in Repository A. while running the
session error message has displayed `server hot-ws270 is
connect to Repository B`.what does it mean?
52
Dear All,
Can anyone tell me that from where i can get Power Center
8.5 S/W for Linux and how can i install Power Center 8.5 or
any 7.x series on Linux Platform.
Thanks in advance
68
what is the main role of FI on business
68
how would u estimate the size of Lookup transform data and
index cache?
44
explain the methodology of Data Warehousing?(Polaries)
35
how do u extract data from different data sources explain
with an example?
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