Question

I want to find when the stored procedure was last executed, so that I can delete the unused stored procedures. One way is to scan through the code and find out the list of used stored procedures and delete the unused one’s, since the no of stored procedures is in thousands, I would like to know if there is an option in DB2 to find this easily.

Answer 1

You don’t say what platform or version of DB2 you are using.

If you are running on DB2 for Linux/UNIX/Windows and are on V9.7 or later, you can look at the LASTUSED column in SYSCAT.PACKAGES, which can be joined to SYSCAT.PROCEDURES via SYSCAT.ROUTINEDEP:

select 
   proc.procschema
  ,proc.procname
  ,pkg.lastused
from 
   syscat.procedures proc
  ,syscat.routinedep rd
  ,syscat.packages   pkg
where 
   proc.specificname =  rd.routinename
   and rd.bname      =  pkg.pkgname
   and pkg.lastused  <> '01/01/0001'
order by 
   pkg.lastused desc;

If a procedure has never been executed, LASTUSED will have the value ’01/01/0001′. The query above filters these out.

Also, please note that you may want to filter on PROCSCHEMA so you’re not seeing all of the system stored procedures…