kurs:joins
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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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kurs:joins [2020/05/11 12:03] admin |
kurs:joins [2020/05/12 10:09] (current) admin |
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| Line 70: | Line 70: | ||
| left join hr.regions on countries.region_id = regions.region_id | left join hr.regions on countries.region_id = regions.region_id | ||
| where region_name = 'Europe' | where region_name = 'Europe' | ||
| + | </code> | ||
| + | |||
| + | <code> | ||
| + | SELECT | ||
| + | first_name, | ||
| + | last_name, | ||
| + | e.department_id aktuelle_department_id, | ||
| + | jh.department_id jh_department_id, | ||
| + | e.job_id aktuelle_job_id, | ||
| + | jh.job_id jh_job_id, | ||
| + | start_date, | ||
| + | end_date | ||
| + | FROM | ||
| + | employees e left JOIN job_history jh | ||
| + | ON e.employee_id = jh.employee_id | ||
| + | ORDER BY | ||
| + | coalesce(e.employee_id, jh.employee_id) | ||
| </code> | </code> | ||
kurs/joins.1589191380.txt.gz ยท Last modified: 2020/05/11 12:03 by admin
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