In a local view, when you add duplicate field names to the output field
list, the fields are renamed by adding the underscore character (_)
followed by a sequential alpha character.
For example, if a field named Cust_ID is added to the output fields list of
a local view more than once, the first occurrence of this field is renamed
to Cust_ID_a, and the second occurrence is renamed to Cust_ID_b.
In a remote view, the duplicate fields are renamed by adding a sequential
number to the second and all subsequent occurrences of the field name. For
example, if a field named Cust_ID is added to the output fields list of a
remote view more than once, the first occurrence of this field is named
Cust_ID, and the second occurrence is renamed to Cust_ID1.
This is the default behavior of the local and remote view designers and
cannot be changed by the user. The only way to control the renaming of
duplicate fields in a view is to create the view programmatically using the
CREATE SQL VIEW command. When you create the views programmatically, the
fields can be renamed using the AS clause of the SQL SELECT command.
The following example creates a remote view named View1 on two tables named
TBL1 and TBL2. Both tables contain a field named Cust_ID. This remote view
renames the duplicate fields to Cust_ID_a and Cust_ID_b.
CREATE SQL VIEW View1 REMOTE CONNECTION MyConnection AS SELECT ;
TBL1.Cust_ID AS Cust_ID_a, TBL2.Cust_ID AS Cust_ID_b ;
FROM TBL1, TBL2
NOTE: If this remote view is later modified by using the remote view
designer and then saved, the fields are renamed to the remote view
designer's defaults of Cust_ID and Cust_ID1.