Introduction

This chapter discusses the structure and content of an Apache Derby database. An Apache Derby database is an organized collection of objects. Each database has its own system catalog, log files, security, and tuning parameters. There are a number of basic components or objects that are defined for each Apache Derby database. These objects include:

  • Tables

  • Schemas

  • Views

  • Indexes

  • Triggers

  • Stored procedures

  • Log files

We first examine what an Apache Derby database is, and how it is created. A database object, for the purpose of this book, is any component of an Apache Derby database, such as tables, views, indexes, schemas, triggers, and procedures. How the database objects are created and manipulated is discussed in Chapter 8, “SQL.”

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