The SASHELP library is in well done installation read-only. You cannot change the content of that. (normal requirement as of good practice)
You are describing the functionality of several members there acting as a program.
Is that program that inventarizes all the current open libnames and all the tables in there the build a view for you situation at that moment.
Your example eithers is indicates:
- you have a bad desinged installation where users can change that by accident ...or...
- there is a problem with SAS as it get blocks by the OS and fails to handle that block correctly.
As the given descritpion of these fucntions they can harm expected perfromance of the system when you have many tables/libnames
---->-- ja karman --<-----