8/11/2013

Data Dictionary in NoSQL Database

NoSQL databases are known for the lack of schema.

So where's the data dictionary.

How does someone new to a project/database/application know where the data is.

And in what format / delimiter / folder/ etc.

Turns out there HCatalog, keeps a data dictionary with common data types because pig, hive, etc. have different data types.

Good to know.

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