kurs:sets_gruppenoperatoren
Differences
This shows you the differences between two versions of the page.
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kurs:sets_gruppenoperatoren [2011/10/28 11:14] mh |
kurs:sets_gruppenoperatoren [2014/09/10 21:22] |
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| - | <code> | ||
| - | select * from | ||
| - | ( | ||
| - | select employee_id, FIRST_NAME, EMPLOYEES.LAST_NAME from employees | ||
| - | minus | ||
| - | |||
| - | SELECT JOB_HISTORY.EMPLOYEE_ID id, EMPLOYEES.FIRST_NAME fn, EMPLOYEES.LAST_NAME ln | ||
| - | FROM JOB_HISTORY , EMPLOYEES | ||
| - | WHERE ( (EMPLOYEES.EMPLOYEE_ID = JOB_HISTORY.EMPLOYEE_ID) ) | ||
| - | ) | ||
| - | --where id = 101 | ||
| - | |||
| - | |||
| - | ---- | ||
| - | |||
| - | select * from ( | ||
| - | SELECT 0 sb, 'history', start_date, end_date, JOB_HISTORY.EMPLOYEE_ID id, EMPLOYEES.FIRST_NAME fn, EMPLOYEES.LAST_NAME ln, JOB_HISTORY.JOB_ID jid | ||
| - | FROM JOB_HISTORY , EMPLOYEES | ||
| - | WHERE (EMPLOYEES.EMPLOYEE_ID = JOB_HISTORY.EMPLOYEE_ID) | ||
| - | and JOB_HISTORY.EMPLOYEE_ID = :b_eid | ||
| - | union | ||
| - | select 1 sb, 'jetzt', null, sysdate, employee_id, FIRST_NAME, EMPLOYEES.LAST_NAME, JOB_ID from employees | ||
| - | where employee_id = :b_eid | ||
| - | ) order by sb, end_date | ||
| - | |||
| - | |||
| - | select sb, h, start_date, end_date, id, fn, ln, jid, prior jid from ( | ||
| - | SELECT 0 sb, 'history' h, start_date, end_date, JOB_HISTORY.EMPLOYEE_ID id, EMPLOYEES.FIRST_NAME fn, EMPLOYEES.LAST_NAME ln, JOB_HISTORY.JOB_ID jid | ||
| - | FROM JOB_HISTORY , EMPLOYEES | ||
| - | WHERE (EMPLOYEES.EMPLOYEE_ID = JOB_HISTORY.EMPLOYEE_ID) | ||
| - | and JOB_HISTORY.EMPLOYEE_ID = 101 | ||
| - | union | ||
| - | select 1 sb, 'jetzt', null, sysdate, employee_id, FIRST_NAME, EMPLOYEES.LAST_NAME, JOB_ID from employees | ||
| - | where employee_id = 101 | ||
| - | ) connect by PRIOR employee_id | ||
| - | by sb, end_date | ||
| - | </code> | ||
| - | |||
| - | <code> | ||
| - | select employee_id as id, job_id, last_name, to_date(sysdate) from employees | ||
| - | union | ||
| - | select employee_id, job_id, to_char(null), to_date(end_date) from job_history | ||
| - | order by 1,3,4 desc | ||
| - | </code> | ||
| - | |||
| - | <code> | ||
| - | select first_name, last_name from employees where employee_id in | ||
| - | ( | ||
| - | select employee_id | ||
| - | from employees | ||
| - | where job_id = 'IT_PROG' | ||
| - | union | ||
| - | select employee_id | ||
| - | from job_history | ||
| - | where job_id = 'IT_PROG' | ||
| - | ) | ||
| - | ------ | ||
| - | |||
| - | select first_name, last_name, stand, datum from employees, | ||
| - | ( | ||
| - | select employee_id, | ||
| - | job_id, | ||
| - | 'jetzt' stand, | ||
| - | sysdate datum | ||
| - | from employees | ||
| - | where job_id = 'IT_PROG' | ||
| - | union | ||
| - | select employee_id, | ||
| - | job_id, | ||
| - | 'früher' stand, | ||
| - | end_date datum | ||
| - | from job_history | ||
| - | where job_id = 'IT_PROG' | ||
| - | ) history | ||
| - | where history.employee_id = employees.employee_id | ||
| - | </code> | ||
| - | |||
| - | <code> | ||
| - | with history_union_employees as | ||
| - | ( | ||
| - | SELECT 1 h, EMPLOYEES.FIRST_NAME, | ||
| - | EMPLOYEES.LAST_NAME, | ||
| - | JOB_HISTORY.START_DATE, | ||
| - | JOB_HISTORY.END_DATE, | ||
| - | JOB_HISTORY.JOB_ID | ||
| - | FROM JOB_HISTORY , EMPLOYEES | ||
| - | WHERE ( (EMPLOYEES.EMPLOYEE_ID = JOB_HISTORY.EMPLOYEE_ID) ) | ||
| - | union | ||
| - | select 2 h, EMPLOYEES.FIRST_NAME, | ||
| - | EMPLOYEES.LAST_NAME, | ||
| - | null, | ||
| - | null, | ||
| - | job_id | ||
| - | from employees where employee_id in (select employee_id from job_history) | ||
| - | ) | ||
| - | select first_name, last_name, start_date, end_date, job_title from | ||
| - | history_union_employees h join | ||
| - | jobs j on h.job_id = j.job_id | ||
| - | order by last_name, nvl(end_date,sysdate) | ||
| - | |||
| - | </code> | ||
kurs/sets_gruppenoperatoren.txt · Last modified: 2014/09/10 21:22 (external edit)
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