Microsoft SQL Server 2019: A Beginner's Guide, Seventh Edition, 7th Edition

APPENDIX	Exercise Solutions

This appendix includes the solutions to the end-of-chapter exercises found in this guide. The solution number matches the exercise number found in the chapter. Not all chapters include exercises, as noted in the text.

Chapter 1 Relational Database Systems: An Introduction

S.1.1 Data independence means that database application programs are not dependent on the physical structure of the stored data in a database (physical data independence) and that database application programs are independent of the logical structure of the database (logical data independence).

S.1.2 The main concept of the relational model is a relation, commonly known as a table. The whole relational model consists of only tables with ...