2011

Modifying an Object Data Table
You can add, modify, and delete fields in newly defined object data tables
until you perform a save operation (either saving objects back to source
drawings or saving the current drawing). Once you perform a save operation,
only a Superuser can modify the table. Also, if you have already queried any
object from a source drawing, you cannot modify an object data table.
When you modify an object data field, AutoCAD Map 3D updates all instances
of the field attached to objects. If the object data table is large, this process
can take a long time.
NOTE Object data is for drawing objects only. For information about the attributes
(properties) of geospatial features, see
Overview of the Data Table (page 1125). To
set up new feature sources for geospatial features, see
Overview of Working with
Feature Sources
(page 582).
Renaming and Deleting Tables
If you have Superuser privileges, you can rename or delete object data tables.
if you have already queried any object from a source drawing, you cannot
rename or delete an object data table .
If you rename a table, the new name must not duplicate an existing table
name.
WARNING When you delete an object data table from a drawing, the table is
deleted from all attached, active source drawings.
See also:
■ Creating an Object Data Table (page 200)
■ Entering and Editing Object Data (page 1061)
■ Finding All Drawing Objects Containing Specific Data (page 1245)
■ Altering Object Properties Using Object Data (page 1267)
Use the MAPLOGIN command to log in as a Superuser, or contact your system
administrator.
202 | Chapter 2 Setting Up