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Informatica Interview Questions and Answers

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Informatica Interview Questions & Answers


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Questions Question: What is the mapping for unit testing in Informatica, are there any other testings in Informatica, and how we will do them as a etl developer. how do the testing people will do testing are there any specific tools for testing
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Questions Question: How do u check the source for the latest records that are to be loaded into the target. i.e i have loaded some records yesterday, today again the file has been populated with some more records today, so how do i find the records populated today.
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Questions Question: While running multiple session in parallel which loads data in the same table, throughput of each session becomes very less and almost same for each session. How can we improve the performance (throughput) in such cases?
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Questions Question: Can Informatica load heterogeneous targets from heterogeneous sources?
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Questions Question: How do you load the time dimension.
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Questions Question: What are the properties should be notified when we connect the flat file source definition to relational database target definition?
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Questions Question: What is hash table informatica?
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Questions Question: What is meant by EDW?
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Questions Question: How to load the data from people soft hrm to people soft erm using informatica?
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Questions Question: What are the measure objects
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Questions Question: How can we join the tables if the tables have no primary and forien key relation and no matchig port to join?
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Questions Question: If the workflow has 5 session and running sequentially and 3rd session hasbeen failed how can we run again from only 3rd to 5th session?
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Questions Question: What is the diff b/w STOP & ABORT in INFORMATICA sess level ?
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Questions Question: What is the diff b/w Stored Proc (DB level) & Stored proc trans (INFORMATICA level) ? again why should we use SP trans ?
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Questions Question: What is surrogatekey ? In ur project in which situation u has used ? explain with example ?
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Questions Question: In my source table 1000 rec's r there.I want to load 501 rec to 1000 rec into my Target table ? how can u do this ?
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Questions Question: What is Partitioning ? where we can use Partition? wht is advantages?Is it nessisary?
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Questions Question: How can we eliminate duplicate rows from flat file?
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Questions Question: How to Generate the Metadata Reports in Informatica?
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Questions Question: In certain mapping there are four targets tg1,tg2,tg3 and tg4. tg1 has a primary key,tg2 foreign key referencing the tg1's primary key,tg3 has primary key that tg2 and tg4 refers as foreign key,tg2 has foreign key referencing primary key of tg4 ,the order in which the informatica will load the target? 2]How can I detect aggregate tranformation causing low performance?
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Latest 10 Answers
When there is any situation that u should attach a new patch to ur kernel , then download the patch and install it,to make changes to kernel , go to ok prompt and type boot -r, it will update or reconfigure the kernel
Honesty, helpful and reliable
procedure is a set of sql statement ,are combined to gether to perform a specific task or to solve a specifi problem.it does not return value.
leadership is power to influence a group so that the members willingly exert efforts as aspired by the leader.
I have the unique combination of technical skill and the ability to build strong customer relationship. I have the ability to stay focussed in stressfull situation. I would be great addition to your team.
first execute the bc search spec to fetch the data then executes the applet search spec if applet search spec is not match with bc it skips
TCP-Transmission Control Protocol. TCP is Reliable. TCP is Connection oriented. UDP-User Datagram Protoco UDP is Unreliable. UDP is Connectionless.
By default in structure all data member and member function are public,i,e if you not mentation any access specifier. But in case of class By default all data member and member function are private.
Structure is a user defined data type. By default all structure variables are public type and we cann't use access specifier in structure type variable, where as in class we can define objects(variables) under required access specifier type.
variable cost is the cost which is not fixed in nature

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