Perm Space and Spool space - response (1) by M.Saeed Khurram

Hi,
When you assign spool space to a user it defines the maximum spool limit that a user can use, but allocated only at run time according to the requirement. So deleting users does not mean that  space will be increased. on the other hand deleting users with perm space will obviously increase the available spool space.
 
There are number of factors that can cause spool space issue, a poor sql code, lot of product join, data skewness all can cause spool space issue.
You can check all these alongwith the spool limits specified.