AutoCAD 2008 User's Guide > Share Data Between Drawings and Applications > Access External Databases > Use Labels to Display Database Information in the Drawing > 
Update Labels with New Values from the Database
Concept Procedure Quick Reference
 
 
 

When database records change, you update labels to reflect the new values.

After you have added labels to your drawings, you may make occasional changes to the database tables that affect the label values. If you make frequent changes to your database tables, you must regularly update the labels in your drawings to ensure data integrity.