Difference between revisions of "HOUR"

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(Created page with "<table align='right' border='1'> <caption>Compatibility</caption> <tr><th colspan='3'>HOUR(d)</th></tr> <tr><td align='center'>'''Engine'''</td><td align='center'>'''OK'''</td...")
 
 
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<tr><td align='left'>ingres</td><td>No</td><td>[[EXTRACT |EXTRACT(HOUR from d)]]</td></tr>
 
<tr><td align='left'>ingres</td><td>No</td><td>[[EXTRACT |EXTRACT(HOUR from d)]]</td></tr>
 
<tr><td align='left'>mysql</td><td>Yes</td><td>[[EXTRACT |EXTRACT(HOUR from d)]]</td></tr>
 
<tr><td align='left'>mysql</td><td>Yes</td><td>[[EXTRACT |EXTRACT(HOUR from d)]]</td></tr>
<tr><td align='left'>oracle</td><td>No</td><td>[[TO_CHAR(d,'HH24')]]</td></tr>
+
<tr><td align='left'>oracle</td><td>No</td><td>[[TO_CHAR(dates) |TO_CHAR(d,'HH24')]]</td></tr>
 
<tr><td align='left'>postgres</td><td>No</td><td>[[EXTRACT |EXTRACT(HOUR from d)]]</td></tr>
 
<tr><td align='left'>postgres</td><td>No</td><td>[[EXTRACT |EXTRACT(HOUR from d)]]</td></tr>
 
<tr><td align='left'>sqlserver</td><td>Yes</td><td>[[DATEPART |DATEPART(HOUR,d)]]</td></tr>
 
<tr><td align='left'>sqlserver</td><td>Yes</td><td>[[DATEPART |DATEPART(HOUR,d)]]</td></tr>
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       ,whn
 
       ,whn
 
       ,wht
 
       ,wht
   FROM eclipse
+
   FROM gisq.eclipse
 
</source>
 
</source>
 
<source lang='sql' class='def'>
 
<source lang='sql' class='def'>
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<ul>
 
<ul>
 
   <li>[[EXTRACT |EXTRACT function]]</li>
 
   <li>[[EXTRACT |EXTRACT function]]</li>
   <li>[[ +(date) function]]</li>
+
   <li>[[%2B(dates) |+(date) function]]</li>
   <li>[[MONTH function]]</li>
+
   <li>[[MONTH |MONTH function]]</li>
 
   <li>[[MINUTE |MINUTE function]]</li>
 
   <li>[[MINUTE |MINUTE function]]</li>
 
   <li>[[DAY |DAY function]]</li>
 
   <li>[[DAY |DAY function]]</li>
   <li>[[SECOND function]]</li>
+
   <li>[[SECOND |SECOND function]]</li>
 
</ul>
 
</ul>
 +
 +
{{Languages}}

Latest revision as of 21:06, 21 October 2012

Compatibility
HOUR(d)
EngineOKAlternative
ingresNoEXTRACT(HOUR from d)
mysqlYesEXTRACT(HOUR from d)
oracleNoTO_CHAR(d,'HH24')
postgresNoEXTRACT(HOUR from d)
sqlserverYesDATEPART(HOUR,d)

HOUR

HOUR allows you to retrieve the hour from a datetime.

   HOUR(d)

In this example you get the hour from the datetime field whn.

SELECT EXTRACT(HOUR FROM whn) AS v
      ,whn
      ,wht
  FROM eclipse
SELECT EXTRACT(HOUR FROM whn) AS v
      ,whn
      ,wht
  FROM eclipse
SELECT TO_CHAR(whn,'HOUR') AS v
      ,whn
      ,wht
  FROM gisq.eclipse
SELECT HOUR(whn) AS v, whn, wht
  FROM eclipse

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