SAS/SHARE -- Concurrent Access to SAS Data Sets
SAS/SHARE allows multiple users in the UNIX environment to access and
update the same SAS data set during the same time period, without
risking one user's changes overwriting or cancelling out another's.
This is done by the SAS/SHARE "server" locking one observation for
each user at any given time, while leaving the remainder of the data
set available for update and/or browsing by other users. The
procedure is relatively simple.
Step 1.
An administrator (anyone with a UNIX RCF login) begins the
SAS/SHARE session by running PROC SERVER to control any
data set access by 'satellite' users. The following program
begins the SAS/SHARE server by making use of the serverid srv2
(other possibilities are SRV2, srv3 and SRV3).
Step 2.
One or more 'satellite' users login and run some form of the
following program which, for the sake of example, points to
a subdirectory called sastest in the file
structure of user user1.
Of course, these statements can be run in interactive SAS, which
allows the use of Full Screen Product (SAS/FSP) and all other
interactive features.
Step 3.
When finished, the administrator runs the following program to
end the SAS/SHARE control of the data library.
Documentation for SAS/SHARE is included in the following
books:
SAS/SHARE Software, Usage and Reference, Version 6
SAS/SHARE Technical Report for UNIX environments (SAS Stock Number
55331)
The documentation is available from the vendor:
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