Defining fields in the Manage Database dialog box
Use the following steps to create or change fields in a new or existing database.
Note  To have fields that you define in the Manage Database dialog box automatically display on a layout, you must select the Add newly defined fields to current layout preference before you define the fields. See Setting layout preferences.
With the database open in Browse mode or Layout mode, choose File menu > Manage > Database.
If your database contains more than one table, select the appropriate table from the Table list.
For Field Name, type a name for the field.
See About naming fields.
For Type, select a field type.
See About choosing a field type.
Click Create.
See Setting options for fields.
Note  To add an existing field to a layout, switch to Layout mode and drag a field from the Field tool Field tool. See Placing and removing fields on a layout.
Related topics 
Defining fields in the Field Picker dialog box
Defining fields in Table View