Prior to getting started with relational databases and probably, even more complicated things, you need to be familiar with the standard language used to interact with them. While you can get away without knowing SQL and working with databases (think in Microsoft Access), sooner or later you will need to learn it.
CITATION STYLE
Nogués, A., & Valladares, J. (2017). SQL Basics. In Business Intelligence Tools for Small Companies (pp. 57–92). Apress. https://doi.org/10.1007/978-1-4842-2568-4_3
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