-- Update one flight status from 'Scheduled' to 'Completed' SELECT * FROM FlightCrew WHERE flights_ID = 4; DELETE FROM FlightCrew WHERE flights_ID = 4; SELECT * FROM booking WHERE flights_ID = 4; ...

SQL commands are categorized into different types based on their functionality. Below are the key categories of SQL commands, along with examples for each: -- 1. Data Query Language (DQL): DQL is used ...

Data work in 2026 asks for more than chart building. Professionals are expected to clean data, query databases, explain trends, and present findings clearly across business, finance, product, and ...