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What is Joins about?

The document explains the concepts of primary keys, foreign keys, NOT NULL constraints, and SQL joins in database management. It provides examples of creating tables with primary keys, defining foreign key relationships, and performing various types of joins such as INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN. Additionally, it covers the use of aliases and the BETWEEN operator in SQL queries.

Author

Isuru Sanjeewa

Language

EN