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You can use these techniques to achieve data source independence:

•Qualify table names through aliases defined in the configuration file (or by supplying fully qualified path names).

•Use only BDE logical data types.

•Use the generic subset of SQL supported by the shared query engine.

The application can determine which aliases are available to it by calling the BDE function DbiOpenDatabaseList. This function lists all of the database aliases in the configuration file (IDAPI.CFG).