Did you try the tutorial in the Postgresql documentation?
https://www.postgresql.org/docs/current/tutorial.html
The psycopgb library is an easy way to use a Postgresql database from Python:
https://www.psycopg.org/psycopg3/docs/
For Postgres take a look at this:
https://www.crunchydata.com/developers/tutorials
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Did you try the tutorial in the Postgresql documentation?
https://www.postgresql.org/docs/current/tutorial.html
The psycopgb library is an easy way to use a Postgresql database from Python:
https://www.psycopg.org/psycopg3/docs/