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White Paper: InterPlex
Enterprise Gateway
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InterPlex
Enterprise Gateway
Introduction
InterPlex
Enterprise products consist of the InterPlex SQL front end installed on a
Unisys ClearPath IX or 2200, the InterPlex Enterprise gateway installed on
a UNIX or Microsoft Server and InterPlex Administrator/ODBC driver
installed on a Microsoft workstation.
All these products operate in the Unisys environment and supply
data connectivity via various interfaces including server based databases
as well as PC-based products conforming to the Microsoft ODBC (Open
Database Connectivity) standard. ANSI
SQL requests, issued from LAN’s, PC’s, or UNIX servers or
workstations, are processed against the Unisys DMS and RDMS databases and
other Unisys data files. PC-users
of Windows products such as Microsoft Access are able to have direct SQL
access to the Unisys data sources.
InterPlex
SQL builds internal tables that control DMS
and other Unisys ClearPath
IX/2200 data source accesses. Multiple
levels of mainframe security are provided including Data Access Groups,
Records, Data-Items and an option for Data-Item Contents.
To insure data integrity,
InterPlex SQL processes all queries through the Unisys Database Executive
(DMR).
The
InterPlex Enterprise gateway allows access from various data servers to
the Unisys ClearPath IX or 2200 file structures.
These data servers are, but not limited to, Oracle, Information
Builder’s EDA Server, and Enterworks data servers and from hereon in
this document will be referred to as “DataServers”.
The setup for the gateway is as simple as installing and
configuring the InterPlex mainframe software, placing a DataServer in your
network and creating the appropriate database link to point to the node
that represent the Unisys ClearPath IX or 2200 DMS database.
When accessing data from the "Unisys NODE", the syntax
and availability of the data is determined by the DataServer’s database
engine. If all criteria are satisfied, the DataServer will attempt to
access the data in the database. At this point, a remote procedure will be executed and the
real data will be retrieved from the Unisys via the InterPlex Enterprise
products. With this
transparency a user or programmer can use the DataServer’s tools to
seamlessly access and update data on a Unisys ClearPath IX or 2200.
The
InterPlex Enterprise gateway will transform your Unisys DMS database into
a network database node. This
transformation allows you to use the DataServer’s tools and development
products to create applications without regard to the location of the
data. Having achieved this
transparency, data may reside on a Unisys DMS database one day, but be
ported to another DataServer’s database overnight.
If you use these transparency methods, your applications will not
need modification or regeneration and end users will not need to be
retrained. In fact, your user
community will not be affected, in any way, by the location of the data
and database performance will be preserved.
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UNISYS Integrators