The Firebird 3 Quick Start Guide provides an introduction to the Firebird database management system, covering its installation, licensing, server configuration, and basic operations. It is designed for newcomers and includes information on using the system's tools, understanding its architecture, and managing databases effectively.

文档详细描述了Firebird 4.0语言参考，涵盖其SQL语言的结构、功能扩展以及安全性的改进。内容包括对现有版本 Firebird 3.0语句的支持，新增了存储过程和函数（PSQL）的处理，并详细介绍了数据类型的扩展和行为变化。此外，文档还提供了对安全性管理的深入探讨，包括USAGE特权的使用及其对序列、例外和其他元数据对象的影响。

The guide provides instructions for installing and configuring Firebird 5, covering topics such as server checks on Linux, Windows, and classic modes, SQL command-based user management, security considerations, and server configuration.

文档详细介绍了Firebird 3.0支持的SQL语言，包括存储过程（PSQL）、数据定义语句（DDL）以及包的使用。Firebird 3.0对SQL语言进行了扩展，增加了对非线性关系的支持和高可用性的实现，并通过存储过程、函数和包来组织代码。

The document provides a comprehensive guide to the SQL language supported by Firebird 5.0, detailing its features such as data type support, referential integrity mechanisms, procedural capabilities via PSQL, and index management. It also outlines how this version differs from Firebird 4.0, including enhancements in query optimization and statistics management.

文档介绍了Firebird 3.0的开发指南，包括使用Delphi、Microsoft Entity Framework、PHP和Spring框架开发应用程序的方法。文档详细讲解了如何创建和配置数据库模型，并提供了具体的SQL脚本命令用于数据初始化。此外，还讨论了在Delphi中使用FireDac组件开发应用的设置方法。