About the Server Engine

This section provides some basic information about the Pervasive PSQL Server engine. For a detailed discussion of Pervasive PSQL architecture, please refer to Pervasive Products and Services.

If you would like more information about what comes in your product and what gets installed, please see Chapter 2, Preparing to Install Pervasive PSQL.

Purpose

You have purchased the Pervasive PSQL Server engine. This database engine is designed to support up to many hundreds of concurrent network users when installed on the appropriate hardware. It is capable of supporting web, corporate, departmental, and other client/server or web-based applications where reliability and performance are critical.

Where to Install

The Server engine must be installed on the same computer where the database files are located. The client portion of the software must be installed on every computer that is expected to access the database. In the case of web applications, the client must be installed on the same computer as the web server. Multiple web server platforms require a client on each platform.

Additional User Licenses

If you receive Status Code 161 or other status codes indicating you have exceeded your licensed user count, you may wish to buy additional user licenses. You can purchase additional licenses in blocks of 10, 20, 50, 100, or more. You may purchase user count upgrades from your application reseller or directly from Pervasive.

Features

All Pervasive database engines offer the same powerful feature set and full-functioned support for programming interfaces. All engine editions are plug-and-play compatible, requiring no application changes to switch from one engine to another. Data files are binary-compatible across all supported platforms.

The chart below shows the major differences between the two different editions of the product.