what is different between sequential batch and concurrent
batch and which is recommended and why?
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what are the types in error loging?
In informatica, I have 10 records in my source system. I need to load 2 records to target for each run. How do I do this?
Explain the key challenges that you face while performing etl testing.
WHY CANT WE SEE THE DATA IN DATASET
what is a test load?
what is the use of structures?how many nodes can u create in a structure?
how do u estimate the number of partitions that a mapping really requires? Is it dependent on the machine configuration?
what are the data modeling tools you have used?(polaris)
What is fact? What are the types of facts?
architural difference between 7.1 workflow monitor and 8.1 workflow monitor.
Which type or t/s is used to convert rows into column & column into rows
what are the concerns of OLTP and DSS systems?
Teradata 
