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OpenDB
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Open D3 to any ODBC-compliant RDBMS.
OpenDB is part of the OSFI (Open System File Interface) family of products. It allows D3 to reach out and talk to any ODBC-compliant databases. Once the connection is established between D3 and the remote database server, D3 is able to read write and select data from the remote RDBMS as if it is part of D3. All standard D3 methods of accessing data can be used (i.e.: TCL, BASIC). As far as the D3 user/developer is concerned, the remote RDBMS is just another D3 account, file or item. The integration of the two systems is totally transparent.
The table below illustrates the integration of the two worlds:
Remote RDBMS D3
Database Account
Table File
Record Item
How does it work?
The RDBMS must be ODBC-compliant and must have a Windows ODBC driver. This driver is used to create the link between the Microsoft ODBC Manager and the Remote RDBMS. The OpenDB Driver is installed on the ODBC Manager. D3 talks to this Manager through Super Q-pointers.
The link is made through the Microsoft ODBC Manager. The diagram bellow illustrates the setup. Notice that the ODBC Bridge can be installed on the D3 server if D3 NT is being used, or on the remote database server if the latter is a Windows based RDBMS. If D3 and the remote RDBMS servers are both Unix based, a Microsoft Windows machine needs to be present somewhere on the network to serve as the ODBC Bridge.
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