DataBase System ta Unit 3 SQL 43.1 Introduction 43.2 Setting Up the Database 4 3.3 Queries 43. 4 View 43.5 Data manipulation M 3.6 Security Haichang Gao, Software School, Xidian University 6DataBase System Haichang Gao , Software School , Xidian University 6 Unit 3 SQL 3.1 Introduction 3.2 Setting Up the Database 3.3 Queries 3.4 View 3.5 Data manipulation 3.6 Security