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Firstly, we need to add new data fields to the existing tables which contain the boundary data, to contain the new data we wish to add. Do not underestimate the amount of time this may take if you have a lot of data to add.
- Table > Maintenance > Table Structure: A dialog box appears, showing a list of fields, with their name and type. Don't worry about the checkboxes in the indexed column, but do not uncheck any boxes that are already checked.
- Click the Add Field button. A field appears at the bottom of the list. Give your new field a name, preferably the same name as the column of data in the table you wish to import data from. Choose an appropriate type for your data, for example, character, integer (whole numbers) or float (decimal numbers).
- Do this for each new column of data you wish to add. If you wish to remove a field, first make sure it is selected and click the Remove Field button.
- Make sure the Table is Mappable checkbox on the right is ticked. Click OK.
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