Outline Overview of The SQL Query Language Data Definition Basic Query Structure Additional Basic Operations Set Operations Null Values Aggregate Functions Nested Subqueries Modification of the Database Database System Concepts-6th Edition 3.2 @Silberschatz,Korth and SudarshanDatabase System Concepts - 6 3.2 ©Silberschatz, Korth and Sudarshan th Edition Outline Overview of The SQL Query Language Data Definition Basic Query Structure Additional Basic Operations Set Operations Null Values Aggregate Functions Nested Subqueries Modification of the Database