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Pivoting of the records
source: target:
col1 col2 col1 col2
a 1 1 a,b,c,d
b 1 2 p,q,r
c 1 3 x
d 1
p 2
q 2
r 2
x 3
how to do this...
Thanks,
krishna. -
Rows pivoting
Source:
col2 col1
a 1
b 1
c 1
d 1
p 2
q 2
r 2
x 3
how to do this...
thanks
krishna
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Performance of an Aggreartor
Under what conditions selecting sorted input in aggregator will still not boost session performance ?
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Informatica Mapping question
Design mapping to load the first record from a flat file into Table A, the Last record from a flat file into Table B, and remaining record into Table C
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Unique Joiner Transformation
If both source have same rows, same number of columns and no duplicate which one should be choosen to be master in joiner trasnformation
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Event-wait task in Informatica
Which of the following statements is correct on workflow events?
1) A predefined (or file-wait) Event Wait task waits for a file to appear at the specified location. As soon as the file appears, the event succeeds and the file can be processed by the subsequent mapping.
2) A predefined (or file-wait) Event Wait waits for a file to appear at the specified location. As soon... -
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What r the designer tools for creating tranformations?
Mapping designer Tansformation developer Mapplet designer
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How many ways u create ports?
Two ways 1.Drag the port from another transforamtion 2.Click the add buttion on the ports tab.
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What r the reusable transforamtions?
Reusable transformations can be used in multiple mappings.When u need to incorporate this transformation into maping,U add an instance of it to maping.Later if U change the definition of the transformation ,all instances of it inherit the changes.Since the instance of reusable transforamation is a pointer to that transforamtion,U can change the transforamation in the transformation developer,its instances...
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What is aggregate cache in aggregator transforamtion?
The aggregator stores data in the aggregate cache until it completes aggregate calculations.When u run a session that uses an aggregator transformation,the informatica server creates index and data caches in memory to process the transformation.If the informatica server requires more space,it stores overflow values in cache files.
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What r the diffrence between joiner transformation and source qualifier transformation?
U can join hetrogenious data sources in joiner transformation which we can not achieve in source qualifier transformation. U need matching keys to join two relational sources in source qualifier transformation.Where as u doesn’t need matching keys to join two sources. Two relational sources should come from same datasource in sourcequalifier.U can join relatinal sources which r coming from diffrent...
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Differences between connected and unconnected lookup?
Connected lookupUnconnected lookup Receives input values diectly from the pipe line.Receives input values from the result of a lkp expression in a another transformation.U can use a dynamic or static cache U can use a static cache.Cache includes all lookup columns used in the mapingCache includes all lookup out put ports in the lookup condition and the lookup/return port. Support user defined...
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How can u recognise whether or not the newly added rows in the source r gets insert in the target ?
In the Type2 maping we have three options to recognise the newly added rows Version number Flagvalue Effective date Range
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What r the different options used to configure the sequential batches?
Two options Run the session only if previous session completes sucessfully. Always runs the session.
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Can u start a batches with in a batch?
U can not. If u want to start batch that resides in a batch,create a new independent batch and copy the necessary sessions into the new batch.
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Informatica Interview Questions
Ans