Open Database/Server which provides direct client/server access to DB2
data for NOMAD users on DOS and OS/2 workstations. Features mainframe
server which responds to large numbers of simultaneous users on client
machines. ODB/Client API follows Microsoft's Open Database
Connectivity Interface specification to provide access to DB2 from
Windows and variety of non-NOMAD applications.Îïèñàíèå-Ò
Cooperative product designed to provide client/server access to
mainframe data from workstations. Access can take the form of
interactive ad hoc queries, or query/retrieval/update applications.
Used for decision support or productions systems. User is given
access to host data through an open API. Offers the application
developer, a programming interface based on Microsoft's Open Database
Connectivity Interface specification. In the Windows environment, the
ODB/Client is an ODBC driver. COMSRV, a communications server executes
as a VTAM application. It is defined as a logical unit in the VTAM
tables and can be a session partner with other LUs on the SNA network.
Part of the transport layer, its job is to allow communications.
Data request units flow from the ODB/Client through COMSRV to ATPS and
RM. ATPS is responsible for accepting messages, passing through to
the RM, queuing messages if they cannot be serviced immediately,
dispatching tasks to accomplish transactions and passing the results
of data queries back to the appropriate requestor. The RM is
responsible for understanding the content of the message and accessing
the database engine. Access is through the DB2 Call Attach Facility.ÒÅÐÌÈÍÛ