Introduction to SQL Databases for Financial Data Analysis — Theory.

Data science in general and financial data science require explicitly a place to store data in order to be retrieved and analyzed. The first place one could think of storing financial data might be a single “.txt” or even a “.csv” file. Unlike those solutions, databases offer much more functionality and can be easily used for storing, managing, and protecting valuable data.

This article would be an introduction to the world of data storage and databases.

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