About This Document

Overview

This section describes how to design, create, query, and maintain a database, including the SQL statements, stored procedures, system catalogs, and views.

Intended Audience

This document is intended for developers on C/Java application based on openGauss, providing necessary references.

As an application developer, you need to be familiar with:

Knowledge about OSs. This is the foundation of everything.
C/Java programming language through which you can develop applications.
An IDE of the C/Java language, which is the prerequisite for efficient application development.
SQL syntax, using which you can operate databases.

Symbol Conventions

The symbols that may be found in this document are defined as follows:

Symbol	Description
	Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.
	Indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.
	Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.
	Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury.
	Supplements the important information in the main text. NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.

Change History

Issue	Date	Description
01	2020-05-12	This issue is the first official release.