Difference between revisions of "DATEPART"

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<tr><td align='center'>'''Engine'''</td><td align='center'>'''OK'''</td><td align='center'>'''Alternative'''</td></tr>
 
<tr><td align='center'>'''Engine'''</td><td align='center'>'''OK'''</td><td align='center'>'''Alternative'''</td></tr>
 
<tr><td align='left'>ingres</td><td>No</td><td>[[EXTRACT|EXTRACT(YEAR FROM d)]]</td></tr>
 
<tr><td align='left'>ingres</td><td>No</td><td>[[EXTRACT|EXTRACT(YEAR FROM d)]]</td></tr>
<tr><td align='left'>mysql</td><td>No</td><td>[[EXTACT|EXTRACT(YEAR FROM d)]]</td></tr>
+
<tr><td align='left'>mysql</td><td>No</td><td>[[EXTRACT|EXTRACT(YEAR FROM d)]]</td></tr>
<tr><td align='left'>oracle</td><td>No</td><td>[[EXTACT|EXTRACT(YEAR FROM d)]]</td></tr>
+
<tr><td align='left'>oracle</td><td>No</td><td>[[EXTRACT|EXTRACT(YEAR FROM d)]]</td></tr>
 
<tr><td align='left'>postgres</td><td>No</td><td>[[EXTRACT|EXTRACT(YEAR FROM d)]]</td></tr>
 
<tr><td align='left'>postgres</td><td>No</td><td>[[EXTRACT|EXTRACT(YEAR FROM d)]]</td></tr>
<tr><td align='left'>sqlserver</td><td>Yes</td><td></td></tr>
+
<tr><td align='left'>sqlserver</td><td>Yes</td><td>DATEPART(YEAR, d)</td></tr>
 
</table>
 
</table>
 
<h1>DATEPART</h1>
 
<h1>DATEPART</h1>
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<div class='ht'>
 
<div class='ht'>
 +
<div class=params>schema:gisq</div>
 
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'>
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   FROM eclipse
 
   FROM eclipse
 
</source>  
 
</source>  
 +
<source lang ='sql' class='def e-oracle'>SELECT whn
 +
      ,EXTRACT(YEAR FROM td)  AS yr
 +
      ,EXTRACT(MONTH FROM td) AS mnth
 +
  FROM gisq.eclipse 
 +
</source>
 
<source lang ='sql' class='def'>SELECT whn
 
<source lang ='sql' class='def'>SELECT whn
 
       ,EXTRACT(YEAR FROM td)  AS yr
 
       ,EXTRACT(YEAR FROM td)  AS yr
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<p>See also</p>
 
<p>See also</p>
 
<ul>
 
<ul>
   <li>[[+ date]]</li>
+
   <li>[[%2B(dates) |+ date]]</li>
 
</ul>
 
</ul>

Revision as of 14:50, 16 July 2012

Compatibility
DATEPART(YEAR, d)
EngineOKAlternative
ingresNoEXTRACT(YEAR FROM d)
mysqlNoEXTRACT(YEAR FROM d)
oracleNoEXTRACT(YEAR FROM d)
postgresNoEXTRACT(YEAR FROM d)
sqlserverYesDATEPART(YEAR, d)

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) 
schema:gisq

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 mnth
  FROM gisq.eclipse
SELECT whn
      ,EXTRACT(YEAR FROM td)  AS yr
      ,EXTRACT(MONTH FROM td) AS mnth
  FROM eclipse

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