| Icon | Description | 
|---|---|
|   | Register Tables: Data stores set as register tables. | 
|   | Other Tables: Data stores that do not have the Register Tables flag activated. | 
|   | Automatically Provided: Data stores that have been automatically assigned this characteristic during the sampling phase. (Data Express for z/OS only). | 
|   | Provided By The User: Data stores that have been manually assigned this characteristic. | 
The first two icons can be combined with the second two to give four different combinations.