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>> So basically, a data lake is a fancy word for a file system? To me, it looks more like an ODS (Operational Data Store) with some data-mart like curation ste
by slantyyz 11y ago
>> So basically, a data lake is a fancy word for a file system?
To me, it looks more like an ODS (Operational Data Store) with some data-mart like curation steps before it hits users.
- EwanToo 11y agoI'm not sure about that, to me an ODS has a schema applied to it to make the data fit into a relational database structure. A data lake should be storing the data in it's original form, without transformation.
- slantyyz 11y ago>> ODS has a schema applied to it to make the data fit into a relational database structure. Yes, I get that. I was probably oversimplifying. Practically speaking, the BI projects I've been on for small to medium enterprises (<150M in size, non-tech) still have predominantly relational data sources. In many of those cases, a warehouse is an expensive effort in over-engineering, but a data-lake-like ODS (without transformations in the main data tables) with curated subject-area marts is a more sensible solution. --edit, added "non-tech" to my qualifier