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Note: This document uses the terms SAS data file and SAS data view to distinguish between the two types
of SAS data sets. Passwords work differently for type VIEW than they do for
type DATA. The term "SAS data set" is used when the distinction
is not necessary.
read | protects against reading the file. |
write | protects against changing the data in the file. For SAS data files, write protection prevents adding, modifying, or deleting observations. |
alter | protects against deleting or replacing the entire file. For SAS data files, alter protection also prevents modifying variable attributes and creating or deleting indexes. |
To protect a file from being read, written to, deleted or replaced by anyone who does not have the proper authority, assign read, write and alter protection. To allow others to read the file without knowing the password, but not change its data or delete it, assign just write and alter protection. To completely protect a file with one password, use the PW= data set option. See Assigning Complete Protection with the PW= Data Set Option for details.
Note: Because of the way SAS opens files,
you must specify the read password to update a SAS data set that is only read-protected.
Note: The levels of protection differ
somewhat for the member type VIEW. See Using Passwords with Views.
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Copyright 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.