| Functions and CALL Routines under OpenVMS |
Verifies the existence of an external file by its physical name.
| Category: |
External Files
|
| OpenVMS specifics: |
Valid values for filename
|
| See: |
FILEEXIST Function in
SAS Language Reference: Dictionary
|
-
"filename"
-
specifies a fully qualified physical filename
of the external file. In a DATA step, filename
can be a character expression, a string in quotation marks, or a DATA step
variable. In a macro, filename can be any expression.
Under OpenVMS, the filename
that you specify must be enclosed in single or double quotation marks.
The FILEEXIST function returns a value
of 1 if the external file exists and a value of 0 if the external file does
not exist.
You must always use fully qualified physical filenames
with the FILEEXIST function. An example of a fully qualified physical filename
is the TEST.SAS file in your default directory. For more information, see
Basics of the OpenVMS File System.
Copyright © 2009 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
