Data aggregation is the process of compiling large amounts of information from a given database and organizing it into a more consumable and comprehensive medium. It actually increases the value of information.
If you are actually planning to learn more about this technology then I recommend you to take up this Tableau-desktop-server-training from Intellipaat as their courses are designed in such a way that anyone can learn it easily from basic to advanced level.
Before enrolling have a look at this video on how Intellipaat helped Uday in his career transition -
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