Difference between revisions of "DATEPART"
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<p>DATEPART allows you to retrieve components of a date.</p> | <p>DATEPART allows you to retrieve components of a date.</p> | ||
<p>You can extract also YEAR, MONTH, DAY, HOUR, MINUTE, SECOND.</p> | <p>You can extract also YEAR, MONTH, DAY, HOUR, MINUTE, SECOND.</p> | ||
| − | <pre style='width: | + | <pre style='width:70ex'> |
DATEPART(YEAR, d) DATEPART(MONTH, d) | DATEPART(YEAR, d) DATEPART(MONTH, d) | ||
DATEPART(DAY, d) DATEPART(HOUR, d) | DATEPART(DAY, d) DATEPART(HOUR, d) | ||
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<div class='ht'> | <div class='ht'> | ||
In this example you get the year and the month from the date <code>whn</code>. | In this example you get the year and the month from the date <code>whn</code>. | ||
| − | <source lang='sql' class='def e-sqlserver> | + | <source lang='sql' class='def e-sqlserver'> |
SELECT whn | SELECT whn | ||
,DATEPART(YEAR, whn) AS yr | ,DATEPART(YEAR, whn) AS yr | ||
Revision as of 11:04, 13 July 2012
| DATEPART(YEAR, d) | ||
|---|---|---|
| Engine | OK | Alternative |
| ingres | No | EXTRACT(YEAR FROM d) |
| mysql | No | EXTRACT(YEAR FROM d) |
| oracle | No | EXTRACT(YEAR FROM d) |
| postgres | No | EXTRACT(YEAR FROM d) |
| sqlserver | Yes | |
DATEPART
DATEPART allows you to retrieve components of a date.
You can extract also YEAR, MONTH, DAY, HOUR, MINUTE, SECOND.
DATEPART(YEAR, d) DATEPART(MONTH, d) DATEPART(DAY, d) DATEPART(HOUR, d) DATEPART(MINUTE, d) DATEPART(SECOND, d)
In this example you get the year and the month from the date whn.
SELECT whn ,DATEPART(YEAR, whn) AS yr ,DATEPART(MONTH, whn) AS mnth FROM eclipse
SELECT whn ,EXTRACT(YEAR FROM td) AS yr ,EXTRACT(MONTH FROM td) AS hr FROM eclipse
See also
