2011

Table Of Contents
NOTE This functionality affects geospatial feature data only. For information about
linking records in an external database to objects in a drawing, see
Overview of
Linking Database Records to Objects
(page 522). For information about moving
data between DWG and geospatial data stores, see
Migrating DWG Data to GIS
(page 628).
Overview of Working with Schemas
Geospatial data is stored in a hierarchical fashion, like a set of tables: each
row within a table is an individual feature, and each column is a property
(page 2071) of that feature. The entire table (including its name, column names,
data types, default values, and constraints) represents a
feature class (page 2063).
The set of related tables is called a schema, and the entire collection of data
resides in a data store.
NOTE This functionality affects geospatial feature data only. For information about
linking records in an external database to objects in a drawing, see
Overview of
Linking Database Records to Objects
(page 522). For information about moving
data between DWG and geospatial data stores, see
Migrating DWG Data to GIS
(page 628).
Tell me more
Video
Show me how to create a new SDF file
and import a schema.
Show me how to delete properties from
a schema.
Show me how to append a feature class
to an SDF file.
Show me how to limit what can be
entered in a field.
Procedure
To edit a schema (page 612)
Tutorial
Exercise 3: Edit the schema
Workflow
Add a Property to an SDF Schema
594 | Chapter 4 Managing Data