SQL

sql is the standard language for querying structured tables in databases. In Brevvie Python + AI — Section 3: Data, Polars & Pair Programming, SQL is not taught directly, but the lesson explicitly builds the table/row/column/dtype mental model that later makes SQL easier to learn.

Why it matters

The source frames dataframe work and SQL work as sharing the same underlying structure, even if the syntax differs.

See also Database Mental Models and Dataframe Operations.