SAS/CONNECT User's Guide

Messaging Services

SAS/CONNECT offers the ability to design and develop distributed applications that communicate by using messages. Messaging services enables the programs that compose a distributed application to communicate by sending data in the form of a message. Two forms of messaging services are available: direct messaging and indirect messaging. Both direct and indirect messaging enable you to include attachments with messages that are sent between a client and a server portion of an application.

Direct Messaging

SCL programs can use direct messaging to communicate by sending messages directly between each other. However, both portions of the application must be running at the same time for the connection to be made.

For more information, see Using Direct Messaging.

Indirect Messaging

Indirect messaging enables programs to communicate indirectly by placing messages on queues. When you use message queues, the programs do not have to be running at the same time to communicate. SAS/CONNECT provides the following two interfaces for accessing message queues: an SCL interface, and a CALL routine interface, which is used with SAS DATA steps or SAS macros.

For more information, see Using Indirect Messaging.

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