In this lesson, you will learn how case sensitivity works in real PostgreSQL tables and columns using practical examples. The video demonstrates how PostgreSQL treats unquoted names as lowercase and how quoted names become case-sensitive.
You will see real scenarios of creating tables and columns with different cases, inserting data, and writing queries that may fail or succeed depending on how names are written. The lesson also shows best practices to avoid confusion and errors when working with case-sensitive identifiers.
By the end of this lesson, you will clearly understand how to handle table and column names correctly and write accurate SQL queries in PostgreSQL.