Pitney-bowes MapInfo Professional Bedienungsanleitung Seite 282

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Table to Update is already set to STATES and Column to Update is automatically set to Add new
temporary column.
7. In the Get Value From Table box, select CITY_125.
If that is the only other table open, MapInfo Professional automatically displays its title in the list box.
When you create a temporary column for a thematic map, the field must be a numeric field.
This is true for all thematic maps except individual values.
Note:
Since in our example, we are looking for the percentage of the population living in urban areas in the
United States, we need to calculate the total of the CITY_125 population; that is, we must calculate
the total of the population of each city in a each state. We need to put that sum into the temporary
column.
8. In the Calculate box, choose Sum.
9. In the of box, choose Tot_pop.
To put the data from the CITY_125 table into the temporary column of the STATES table, there must
be a link between the two tables that MapInfo Professional can use to access the data. MapInfo
Professional can often make this link automatically. In this example, both our tables have a State
field.
10. Click Join.
The Specify Join dialog box opens.
MapInfo Professional 12.5282
Updating Columns using Thematic Mapping
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