SQL basics: `DELETE`, `UPDATE`, `ALTER TABLE` & more! Learn how to delete tables, update data, change table structure, use `AS`, `CONCAT`, `DISTINCT`, `COUNT`, and `SUM` in SQL queries.

We stopped prop drilling by using Context API. Prop drilling occurs when data is passed through multiple components (e.g. App -> Card -> User -> Date). Context API manages state and shares it across nested comps, eliminating prop drilling.

Components are reusable code blocks that return HTML, following JSX rules: camelCase attributes, closed elements, and expressions in curly brackets. Props pass data from parent to child components, while state stores dynamic data with useState Hook.