When you reference a data view in a PROC step, the view executes and provides you with an image of the data values as they currently exist, not as they existed when the view was defined. SAS data ...

If you have SAS/SHARE ... the same SAS file, but only one user can access and make changes to a single record (observation) at a time. To open a data set in the VIEWTABLE window, from the SAS Explorer ...