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--- kurs:sets_gruppenoperatoren [2012/10/04 15:43]
mh
+++ kurs:sets_gruppenoperatoren [2014/09/10 21:22] (current)
@@ Line 1: / Line 1: @@
+<code>
+select employee_id,
+       first_name,
+       last_name,
+       department_id,
+       job_id,
+       hire_date,
+       start_date,
+       end_date,
+       status
+       from (
+select employee_id,
+       first_name,
+       last_name,
+       department_id,
+       job_id,
+       hire_date,
+       (select max(end_date)+1 from job_history
+           where employee_id = employees.employee_id)
+       start_date,
+       null end_date,
+       'aktuell' status,
+zeit
+  from employees
+union
+select h.employee_id,
+       first_name,
+       last_name,
+       h.department_id,
+       h.job_id,
+       hire_date,
+       start_date,
+       end_date,
+       'historisch',
+zeit
+from job_history h join employees e
+  on h.employee_id = e.employee_id
+) o
+where employee_id = 176
+order by employee_id,
+         zeit,
+         start_date
+</code>
 <code>
 select status,

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