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I am curious, what do you perceive as the difference between data transformations and "wrangling raw data into tables"? Edit: I am also curious why you conside
by fifilura 3y ago
I am curious, what do you perceive as the difference between data transformations and "wrangling raw data into tables"?
Edit: I am also curious why you consider SQL to be inferior for the latter?
- jochem9 3y agoThe difference is that raw data can come in many shapes (e.g. impossibly nested jsons) and unexpected quality (changing field names...). I cannot easily work with this in SQL and definitely not write tests to cover the ever increasing complexity of dealing with messy data. After that step the data is a lot more uniform, so then it's easy to use SQL.