DeLorme 6 - Manual (Page 181)

Working With GIS
173
billion characters).
Small
Integer
A 16bit integer (-32,000 to 32,000).
String A simple ANSI character string (0-8000
characters).
URL An ANSI string which identifies as web
resource.
9. If you selected String, Unicode String, or URL, type the number of characters
of the string/URL in the String Size text box.
10. Under Fields, select a data type from the drop-down list.
11. Optional Double-click a field or function name to insert that field/function into
the formula text box. For more information, see Function and Operator
Descriptions.
Note The fields available are based on the data type you chose.
12. Click OK.
Notes
• To undo a change, click Clear.
• After you add a field, to edit the formula, right-click it in the Description column
of the Design View and then select Edit Formula.
• Dates must be between 1/1/1753 and 12/31/9999. If you have a date that is
outside of these parameters, change your date value to a string value.
• Formulas are not required.
Editing a Field's Formula
This Help topic describes features that are available in XMap
GIS Editor and XMap GIS Enterprise.
Once you add a field with a formula, you can edit the formula at any time by right-
clicking the formula in the Description column of the Design View and then selecting
Edit Formula. Then, edit the formula using the Add Field dialog.
Deleting a Field from a Layer
This Help topic describes features that are available in XMap
GIS Editor and XMap GIS Enterprise.
Use the Delete Field feature to delete custom fields you have added to your layer or
to delete default fields that came with your imported layer. When you delete a field
from a layer, it is permanently deleted from the database (including all involved
elements such as labels, dependent formulas, classifications, etc.).
To Delete a Field from a Layer
Use the following steps to delete a field from a layer.
1. Click the GIS tab.
2. Click the Workspace subtab if it is not selected.
3. Click the layer from which you want to delete a field.