calculating start and end date

I need to write a condition in my query to give a list of all employees:
-active employees
- employees terminated within the last 30 days of their termination date

tunc(sysdate) between x.start_date and nvl(y.termination_date +30, x.end_date)

not sure about calculation of the section in bold

thanks in advance
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DavidSenior Oracle Database AdministratorCommented:
The condition is more like, where trunc(termination_date) > SYSDATE -30.  I don't grasp how you want active employees mixed in.
johnsoneSenior Oracle DBACommented:
Assuming that END_DATE is NULL for active employees, employees don't start in the future, and that employees aren't terminated in the future......

Active would be:


Terminated in the last 30 days would be


Putting that together, you would get:


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awking00Information Technology SpecialistCommented:
Some sample data and the expected results would be most helpful.
shmzAuthor Commented:
thank you
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