kurs:datum
Differences
This shows you the differences between two versions of the page.
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kurs:datum [2010/05/18 11:15] 127.0.0.1 external edit |
kurs:datum [2014/09/10 21:22] |
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| - | alter session set NLS_DATE_FORMAT='yyyymidd'; | ||
| - | |||
| - | <code> | ||
| - | select last_name, hire_date from employees where | ||
| - | to_char(hire_date, 'yyyymmdd') | ||
| - | between '19980201' and '19980701' | ||
| - | / | ||
| - | </code> | ||
| - | |||
| - | nachteil JEDE zeile mu� konvertiert werden | ||
| - | |||
| - | <code> | ||
| - | select last_name, hire_date from employees where | ||
| - | hire_date | ||
| - | between to_date('19980201', 'yyyymmdd') and to_date('19980701', 'yyyymmdd') | ||
| - | / | ||
| - | </code> | ||
| - | |||
| - | <code> | ||
| - | select * from ( | ||
| - | select first_name, last_name, hire_date, trunc(months_between( sysdate, hire_date)) asd from employees | ||
| - | ) | ||
| - | where asd >=120 | ||
| - | order by hire_date | ||
| - | </code> | ||
| - | |||
| - | Zahl der Tage pro Monat, ACHTUNG das trunc von last_day liefert Mitternacht des letzen Tages, also dauert der Monat dann noch 24h! | ||
| - | <code> | ||
| - | select (trunc(last_day(sysdate))+1 - trunc(sysdate, 'month')) from dual; | ||
| - | </code> | ||
| - | |||
| - | <code> | ||
| - | select add_months(to_date('20090131', 'yyyymmdd'), 1) from dual; | ||
| - | </code> | ||
kurs/datum.txt · Last modified: 2014/09/10 21:22 (external edit)
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