SAS data set running queue

[GeorgeSAS]

Hello everyone,

When several different SAS programs(run at same time) need to share a same SAS dataset(stored in UNIX) as there input source. Is there any order who will use the dataset first? or they can use it by given CPU time randomly??? that dataset is a large data. each programs will use it for not just a minute.

Thanks!

[TomKari]

Multiple SAS sessions can read a SAS dataset concurrently, with no issues. SAS datasets can't be shared for output; only one user (data step or proc) can be using it at a time. I can't test it here, but I believe any second and subsequent people who try to write to that SAS datasaet while it's being written by user 1 will get an "in use" message.

Tom

[kiranv_]

As far as I know sas dataset can be read concurently. Please checkout  interesting link below

http://support.sas.com/resources/papers/proceedings15/3380-2015.pdf