4D和ADABAS的区别

1. 第四维(4D)：
第四维是由 Laurent Ribardière 开发的关系数据库管理系统和 IDE。 4D 可以作为服务器运行，以便多个客户端可以管理单个数据库。 4D 创建于 1984 年，1987 年为 Macintosh 稍微延迟了公开发布。它是一个具有集成数据库管理系统的应用程序开发环境。

1. 自适应数据库系统(ADABAS)：
ADABAS 由 Software AG 开发，可在 IBM 大型机上运行。它于 1971 年推出。它是一个 OLTP – 用于大型机和 Linux/Unix/Windows 环境的 DBMS。 ADABAS 是一种企业数据库管理系统 (DBMS)，专为可靠性、高性能、可扩展性和低总体拥有成本而设计。

4D 和 ADABAS 的区别：

S.NO.	4D	ADABAS
1.	Developed By 4D, Inc on 1984.	Developed By Software AG on 1971.
2.	It is an application development environment with integrated database management system.	It is an OLTP – DBMS for mainframes and Linux/Unix/Windows environments.
3.	It is written in C and C++ languages.	It is written in Natural language.
4.	Server operating systems for 4D are OS X and Windows.	Server operating systems for ADABAS are BS2000, Linux, Unix, Windows, z/OS and z/VSE.
5.	It support XML Format.	It does not support XML Format.
6.	It support the Server-side scripting.	Server-side scripting is done in Natural.
7.	There is no Partitioning methods.	It supports partitioning methods.
8.	It supports SQL query language.	It also supports SQL query language with add-on product ADABAS SQL Gateway.
9.	It support only one replication methods – Master-master replication.	It also supports partitioning with add-on product Event Replicator.
10.	It provides the concept of Referential Integrity. Hence, no Foreign Keys.	It does not provides the concept of Referential Integrity. Hence, no Foreign Keys.