SAS/CONNECT User's Guide

Benefits of RLS

If you need to maintain a single copy of the data on the remote machine and keep the processing on the local system, then RLS is the correct choice. In general, RLS is the best solution if

the amount of data that is needed by the local processing is small.
the remote data is frequently updated.
your data center rules prohibit multiple copies of data.

RLS allows you to access your remote data as if it were local. This feature eliminates an explicit step of coding an upload or download of the data before processing it. It also permits the GUI of an application to reside on the local system while the data remains in the remote environment (for example, a local FSEDIT session of a remote data set). Applications can be built that provide seemingly identical access to local and remote data, without requiring the end user to know where the data resides.

Using RLS, it is possible to perform updates to data in external databases. RLS enables a single user who is accessing data that is stored in an external database to perform updates to that data through the use of the single-user server. This allows you to update remote data in an external database as a result of local processing.

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