Objectives of the week
This week you'll dive deeper in the ocean of SQL language. There will be more than one tasks related to the specific database schema what is provided by us. The topics what you should be expertised: sub-selects GROUP BY statement aggregate functions sorting different join types views insert with select DISTINCT
A "query.py" fájl segítségével futtahatjuk a lekérdezéseket pycharmben.