Pitney Bowes MapInfo Professional - Manual (Page 383)

Result Codes
When you are using the result code option (in Geocode Options dialog box) MapInfo Professional will
generate a code for each record. These codes indicate the steps MapInfo Professional took to geocode
the record, whether or not the geocoding was successful, and whether or not the match was exact. You
can use return codes to diagnose MapInfo Professional's geocoding performance. It will help you spot
"false positives" resulting from using various geocoding options and to analyze why some records have
not been geocoded.
Ungeocoding a Table
Ungeocoding is the process of removing objects that have been attached to data records. There are
times when it will be necessary to ungeocode an entire table or selected records in a table. For example,
you have geocoded a database of customers using US_ZIPS.tab. Later, you want to geocode the
database again, using street addresses instead of postal code centroids since the geocoding will be
more precise. MapInfo Professional allows you to delete all graphic objects associated with this table.
You can then geocode your database again, using more specific coordinates. Ungeocoding only selected
records from your table is useful when the location information changes for a relatively small number of
records, such as address changes in a geocoded list of customers.
To ungeocode and remove one or more of the objects in a table:
1. Make the table you are working with the editable layer of the active Map window.
2. Select the object or objects.
3. Click the Map window to make it active.
4. Choose Edit > Clear Map Objects Only.
To ungeocode an entire table:
1. On the Table menu, point to Maintenance and click Table Structure. The Modify Table Structure
dialog box displays.
2. Clear the Table Is Mappable check box. Click OK.
This action will remove all graphic objects from your table. This action cannot be undone.
If you are unsure of losing your points, save a copy of the table first. Caution:
3. A warning dialog box appears. If you are sure about removing all the objects, click OK.
All graphic objects have been removed from your table.
Make sure that you do not ungeocode your source tables. Unless you have created a backup of that
table, you will no longer be able to display that table as a map or use it for geocoding.
Ungeocoding Selected Records
To ungeocode and remove one or more of the objects in a table:
1. Make the table you are working with the editable layer of the active Map window.
2. Select the object or objects.
3. Choose Edit > Clear Map Objects Only.
For more information about trouble shooting your geocoding issues, see Resolving Geocoding Issues
in the Help System.
383 MapInfo Professional User Guide
Chapter 14: Putting Your Data on the Map