Data Manipulation Part 2 : ETL
September 2nd, 2011
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My last post discuss about SQL queries. Nevertheless, sometimes data came from differents databases. In such cases, it is no longer possible to use SQL. ETL tools, which stands for Extract Transform Load are designed to easilly allow data transformations. I have currently used three tools : Talend, SAP Business Objects Data Integrator and Kettle. I will review them and explain one or two tips I’ve learned using ETL tools.