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Sybase Enterprise Data Studio Feature Guide

About This Book

Conventions

Conventions

Illustrations in this book use icons to represent these components of a data enterprise system:

• Adaptive Server(R) Enterprise/other data server
• Replication Server(R)
• Replication Agent(TM)
• DirectConnect(TM)
• OmniConnect(TM)
• Client application

Adaptive Server Enterprise or Other Data Server

This icon represents either an Adaptive Server Enterprise (Adaptive Server) or a non-Sybase data server. If the data server in an example must be Adaptive Server, the data server icon is labeled "Adaptive Server."

Replication Server

This icon represents Replication Server, the Sybase program that maintains replicated data on a local-area network (LAN) and processes data transactions received from other Replication Servers on the wide-area network (WAN).

Replication Agent

This icon represents a replication agent, a replication system process that transfers transaction information from a database to a Replication Server for distribution to other databases.

Every database from which you replicate data requires a replication agent specific to the database. Adaptive Server has its own replication agent thread, RepAgent. Replication agents for all other data servers are separate processes. This icon represents a replication agent that is a separate process.

DirectConnect

This icon represents a DirectConnect data access server. DirectConnect servers connect LAN-based clients and heterogeneous data servers. Enterprise Data Studio provides DirectConnect servers for Adaptive Server(R) Anywhere, Informix, and Oracle data servers.

OmniConnect

This icon represents OmniConnect. When combined with the appropriate DirectConnect server, OmniConnect provides transparent read/write access to database systems such as DB2, Informix, and Oracle.

Client Application

This icon represents a client application. A client application is a user process or application connected to a data server. It may be a front-end application program executed by a user or a program that executes as an extension of the system.