There are three general types of resources that can be attached to a file.
User-defined resources
Information that you wish to store in the table, such as a version number, or an infrequently accessed counter. Use resources to store information associated with a table that varies from the type of information stored repetitively in the data records.
FairCom-defined resources
There is a variety of information that, under certain circumstances, FairCom wishes to store in the table. This can be information relating to IFIL structures, alternate collating sequences, special characters for key padding, and so forth. Usually you do not access this information directly. It is available to a variety of c-treeDB API functions that use it.
Third-party resources
As other developers create utilities integrating with FairCom DB, FairCom assigns resource identifiers when necessary.