An Open ClientConnect application calls a pre-written procedure, such as a stored procedure or an Open ServerConnect application. All calls from Open ClientConnect to remote nodes are processed using the LU 6.2 (three-tier only) or TCP/IP (two-tier only) communications protocol. For requests to an Open Server, the client can access any data available to the Open Server application. If the request is to Open ServerConnect, the client can access any data storage system accessible through CICS.
The called procedure or transaction executes and returns results to the calling Open ClientConnect application, which can use the results for local processing. If the client has permission, the client transaction can update data at remote sites by inserting, modifying, and deleting entries in database tables or other data storage systems. For more information on any of the following topics, refer to the Mainframe Connect Client Option Installation and Administration Guide.
Open ClientConnect includes isql, a utility that allows users to send SQL language commands interactively. Users specify the server, whether or not to enable tracing, and type SQL commands in a 3270 panel.
For SNA environments, Open ClientConnect includes a Connection Router Table that allows you to define servers and connections, and to set traffic priorities.
For TCP/IP, Open ClientConnect includes a Server-Host Mapping Table that allows you to define servers for both three-tier and two-tier environments.
Open ClientConnect for CICS uses the APPC Side Information File to define servers.
