Author Topic: Why do we need ETL? What are the advantages and disadvantages of using this?  (Read 74 times)

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Offline rpmolecule

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Why do we need ETL? What are the advantages and disadvantages of using this?

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Offline JusticeLeague

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- i'ts primary purpose is for Data-warehouse population - ETL tool can be used to populate the dimensions & fact tables of a data-warehouse
- Data migration - ETL tool can be used to migrate or transfer the data between variety of sources like databases, CRMs, cloud, files, emails etc.
- Transferring huge data - ETL tools are used to benefit in the transfer rate as they benefit from different technologies like parallel processing, selective processing, etc.
- Data cleansing- ETL tool can be used to cleanse your data i.e. remove any inconsistent or ambiguous data   
- Source for reports & analysis - ETL readies the data for further representation in the data warehouse in the form of reports or analysis.
- Big data support - ETL tool supports many big data options such as Hadoop, etc.


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