The CREATE EXISTING TABLE statement creates
a proxy table that maps to an existing table on the remote server.
Sybase IQ derives the column attributes and index information
from the object at the remote location.
Example
To create a proxy table named p_employee on
the current server to a remote table named employee on
the server named iqdemo1, use the following
syntax:
CREATE EXISTING TABLE p_employee
AT 'iqdemo1..DBA.employee'

See Reference: Statements and Options > CREATE
EXISTING TABLE statement.