tell me few points when u become TL
how do u estimate the number of partitions that a mapping really requires? Is it dependent on the machine configuration?
Can there be sub steps of etl steps?
What is meant by incremental load?
Explain etl mapping sheets?
What is etl tool in hadoop?
what is the use of server manager?
Explain different types of partitioning?
1.Identify and discuss the problems which are occurred during data quality verification for the single-source and multi-source problems. 2.Testing has very important role in DWH. In ETL testing phase, how can we perform the integration testing and regression testing? 3.What are the perquisites of system testing and regression testing in ETL phase?
what is pmrep command?
how do u set partition points in the mapping?
What is partitioning? Explain different types of partitioning?
Explain and compare etl & manual development?
What are various etl tools in the market?
What are the various tools used in etl?
