explain the methodology of Data Warehousing?(Polaries)
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what is HISTOGRAM? how to generate statistics?
what is pmrep command?
can u anyone plz share some etl testing interview question . and share the sql queries and unix . plz help me to clear in the etl testing interview by sharing ur knowledge
hoe to access second value in mapping parameter if it is having more than one value ?????????????
How to delete data which is not in source table?
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Explain do we need an etl tool? When do we go for the tools in the market?
IN Informatica, I have 10 records in my source system. I need to load 2 records to target for each run. how to perform.please let me know. I know by using Mapping variable we can perform but how to load please any one explain.
Explain and compare etl & manual development?
Hi, I've a mapping with flat file source The target update override property for the target table is using update stmt. There is no update strategy between source and target. Also The session has the target properties as Insert , Update as update options checked. Does this mean that recs will be inserted only and the update override will not be applied at all. Thanks
what are variable ports and list two situations when they can be used?
what are Lookup caches options? Including persistent caches.
how do u implement unconn.stored proc. in a mapping?
Teradata 
