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Data Warehouse Interview Questions
Questions Answers Views Company eMail

Where do i get Free COGNOS 8 Certification Dumps Downloaded for these codes COG-105, COG-112, COG-122, COG-125, COG-132, COG-135, COG- 142, COG-145, COG-180, COG-200, COG-205, COG-300, COG-310, COG-400, COG-480

7 14681

how to identify new and old values in source qualifier or any other transformations using informatica

2 6058

what is rank and dense rank in informatica with any examples and give sql query for this both ranks

4 27826

It is possible to give 2 query items has measures in cross tab?for ex:row as products,column as year and measure as revenue,sales year....like that.It is possible r not ?If it's possible pls tel me the process....

2 4610

i have f;latfile source. i have two targets t1,t2. i want to load the odd no.of records into t1 and even no.of recordds into t2.

Wipro,

3 7170

How to do performance tunning of reports?

2314

Where do we use ACvisitor class?

2519

What property you use to Hide a control at runtime?

2 5728

How do you design a report which has multiple child datastream (horizontal seq)

2601

How do we have left -right flow , normally its top-down flow

1 6080

How can you change the group key dynamically?

L&T,

1 4517

What is reconstalation n What is fact constalation? Correct me if i m wrong in the question.

Mphasis,

2 6754

How to fix the order of Prompts? How to assign the default value in prompt?

Mind Tree,

2 7822

What is the difference Between Mapping parameter and variable

Accenture,

3 10598

What is update override?

Accenture,

1 6966


Un-Answered Questions { Data Warehouse }

What are the different types of data warehouses?

1084


Are you involved in writing the inferential analysis plan? Tables specifications?

3957


What are types of partition primary index (ppi) in teradata?

1052


what is parallel query?

2083


Which commands are used to import and export the datastage jobs?

1414


46.How you can create cross joined output using join component ? 47.What is the default layout of watcher files ? How to use in abinitio graph? 48.Why you get 'too many open files' error ? How to use in abinitio graph? 49.What is the significance of vnode folder under AB_WORK_DIR ? How to use in abinitio graph? 50, What is the significance AB_AIR_BRANCH? How to use in abinitio graph? 51. How can you select only unique records from a set of records ? How to use in abinitio graph? 52. How next_in_sequence work in parallel layout ? How to use in abinitio graph? 53. Why you want to set a modest number in limit ? How to use in abinitio graph? 54. How you can encrypt a password and use it in dbc file? How to use in abinitio graph? 55. Which function you should be using if you do not want to process non printable char from a feed file ? How to use in abinitio graph? 56. How you can run a component for certain conditions ? How to use in abinitio graph? 56. What is catalog and when you should use it ? How to use in abinitio graph? 57. How you can use reformat as a router ? How to use in abinitio graph? 58. How many process gets created for a n-way parallel component ? How to use in abinitio graph? 59. Why delimited DMLs take more time to process than fixed length DMLs? How to use in abinitio graph? 60. How can you select only first and last record from a file without using next_in_sequence? How to use in abinitio graph? 61.Why you should always keep largest input as driving input for Join ? How to use in abinitio graph? 62. What a catalog file contains ? How to use in abinitio graph? 63. What Is private project and public project ? How to use in abinitio graph? 64. Why you should not use checkpoint after replicate ? How

5740


How to delete duplicate row using informatica?

1046


what is the difference b/w the refresh and buffered data?

2342


Explain the use of aggregator cache file?

1254


What is the difference between stop and abort in informatica

1097


List few etl bugs?

943


Explain the main difference between the sas procedures and functions? : Sas-administrator

1070


What is scd1 , scd2 , scd3?

1084


what is universe null

2424


Suppose we do not group by on any ports of the aggregator what will be the output?

1041