This expandable item provides the following options that allow you to specify the attributes with which you wish to uniquely identify each object in the delimited text file:
- Available attributes. Lists the attributes that are available in the external data system. Use this list to select the attributes whose values you want to use to generate a unique identifier for each object in the external data system. You can filter attributes by typing in the text box at the top of this list. To select multiple attributes, hold down CTRL and click to select attributes in the list.
- UniqueID attributes. Lists the attributes whose values are currently used to generate a unique identifier for each object in the external data system.
- Add->. Moves the selected attributes from the Available attributes list to the UniqueID attributes list.
- <-Remove. Moves the selected attributes from the UniqueID attributes list to the Available attributes list.
- Constructed UniqueID. Displays a combination of the attributes whose values will make up a unique identifier for each object in the external data system.