| ACCESS Procedure Reference |
Drops a DBMS column so that it cannot be selected in a view descriptor.
| Optional statement |
|
| Applies to: |
access descriptor
|
|
DROP <">column-identifier-1<"> <...
<">column-identifier-n<">>;
|
The DROP statement drops the specified
DBMS column from an access descriptor. The column therefore cannot be selected
by a view descriptor that is based on the access descriptor. However, the
specified column in the DBMS table remains unaffected by this statement.
The column-identifier argument
can be either the CA-Datacom/DB field
name or the positional equivalent from the LIST statement, which is the number
that represents the column's place in the access descriptor. For example,
to drop the third and fifth columns, submit the following statement:
drop 3 5;
If the column name contains special characters or national
characters, enclose the name in quotation marks. You can drop as many columns
as you want in one DROP statement.
To display a column that was previously dropped, specify
the column name in the RESET statement. However, doing so also resets all
of the column's attributes (such as SAS column name, format, and so on) to
their default values.
Copyright © 2007 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
