Some programmers would rather write database interactions in Pure Python rather than raw SQL. Python developers can interact with the database using the language they are familiar with and abstract the database system. Some programmers might not mind switching between languages, but it can be easier to get the first prototype up and running using a single language. You’ll still need to know at least rudimentary SQL, but since an ORM simplifies working with the data layer, many developers choose to use one.

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Mastery How To Use SQLAlchemy In Python for Beginner
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