This from V2003 Inside Out
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At a minimum, you can create a shape-to-database link to
import values into custom property fields.
Linking Limitations
There are limits to what Visio can do when it creates a link between a shape
and a database
record. Be aware of the following limitations:
? String size You cannot store ODBC strings larger than 64-KB characters in
Visio cells
and fields.
? Primary key type You cannot specify a field of type SQL_TIMESTAMP as the
primary
key.
? Replication IDs You cannot update replication IDs from an Access database.
? Timestamp fields You cannot update Timestamp fields from an Informix
database.
? Binary field size You cannot store ODBC binary fields larger than 32 KB in
Visio cells
and fields.
