JSDB 是 JavaScript 用来访问数据的开发包，是一个数据驱动的脚本语言，支持数据库、XML 和 Web 以及 Email。

JSDB is based on Mozilla SpiderMonkey and class libraries developed by Raosoft, Inc. The open-source version is free with fairly generous license terms. Additional functionality or even less restrictive license terms may be purchased from Raosoft, Inc.

JSDB can treat any DBF/xBase, ASCII, Oracle, Sybase, DB/2, Postgres, MySql, Access, or Microsoft SQL Server table equivalently, translating high-level (set(row,field,value), get(row,field)) function calls to database-specific SQL commands. The same applies to email: you can communicate with Lotus Notes, Exchange (MAPI), and SMTP/POP3 mail systems interchangably with a single set of function calls.

JSDB also includes a stream object that gives you a common interface to files, COM ports, sockets, HTTP, pipes, and memory. The ability to treat memory as if it were a file helps you write reusable code that is easily adapted to a variety of situations.

For writing distributed XML web applications, JSDB comes with an Internet server component and an XML parser, both implemented in a balance of C++ and JavaScript for optimum speed and flexibility.

You might use JSDB to:

• translate XML into SQL statements,
• translate SQL databases into XML,
• generate HTML documentation from an XML or Oracle database,
• download web pages while you sleep,
• index their contents in a database,
• send personalized email based on a database,
• or run a web database

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