blocks|key|1506608|text|SELECT+DATEPART(HOUR,+GETDATE());|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1506609|DATEPART+documentation|unstyled|offset|length|style|CODE|1506610|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/ms174420%2528loband%2529.aspx^0|0|0|8|0|M|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|T|8|@$G|U|H|V|I|J]]|9|@$G|W|H|X|1|Y]]|A|$]]|$1|K|3|-4|5|F|7|Z|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

<pre><code>SELECT DATEPART(HOUR, GETDATE());
</code></pre>

<a href="http://msdn.microsoft.com/en-us/library/ms174420%28loband%29.aspx" rel="noreferrer"><code>DATEPART</code> documentation</a>

blocks|key|1506694|text|..。您可以在任何粒度类型上使用它，例如：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1506695|DATEPART(YEAR,+[date])

DATEPART(MONTH,+[date])+

DATEPART(DAY,+[date])++++

DATEPART(HOUR,+[date])+

DATEPART(MINUTE,+[date])|code-block|syntax|javascript|1506696|(注意:我喜欢日期周围的保留字。当然，这是在带有时间戳的列被标记为“date”的情况下)|1506697|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

... you can use it on any granularity type i.e.:

<pre><code>DATEPART(YEAR, [date])

DATEPART(MONTH, [date]) 

DATEPART(DAY, [date]) 

DATEPART(HOUR, [date]) 

DATEPART(MINUTE, [date])
</code></pre>

(note: I like the [ ] around the date reserved word though. Of course that's in case your column with timestamp is labeled "date")

blocks|key|1292049|text|使用datepart。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1292050|例如：|1292051|datepart(hh,+date)|code-block|syntax|javascript|1292052|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/ms174420.aspx^0|2|8|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

Use <a href="http://msdn.microsoft.com/en-us/library/ms174420.aspx" rel="nofollow noreferrer">datepart</a>.

E.g.:

<pre><code>datepart(hh, date)
</code></pre>

blocks|key|1292086|text|也试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1292087|+++DATEPART(HOUR,GETDATE())+|code-block|syntax|javascript|1292088|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

try this one too:

<pre><code> DATEPART(HOUR,GETDATE()) 
</code></pre>

blocks|key|1292202|text|DATEPART()函数用于返回日期/时间的单个部分，例如年、月、日、小时、分钟等。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1292203|datepart++++***Abbreviation

year++++++++***yy,+yyyy+
quarter+++++***qq,+q+
month+++++++***mm,+m+
dayofyear+++***dy,+y+
day+++++++++***dd,+d+
week++++++++***wk,+ww+
weekday+++++***dw,+w+
hour++++++++***hh+
minute++++++***mi,+n+
second++++++***ss,+s+
millisecond+***ms+
microsecond+***mcs+
nanosecond++***ns+|code-block|syntax|javascript|1292204|示例|1292205|select+*+
from+table001
where+datepart(hh,datetime)+like+23|1292206|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The DATEPART() function is used to return a single part of a date/time, such as year, month, day, hour, minute, etc.

<pre><code>datepart ***Abbreviation

year ***yy, yyyy 
quarter ***qq, q 
month ***mm, m 
dayofyear ***dy, y 
day ***dd, d 
week ***wk, ww 
weekday ***dw, w 
hour ***hh 
minute ***mi, n 
second ***ss, s 
millisecond ***ms 
microsecond ***mcs 
nanosecond ***ns 
</code></pre>

Example

<pre><code>select * 
from table001
where datepart(hh,datetime) like 23
</code></pre>

blocks|key|1506828|text|DATEPART(HOUR,+[date])返回以军事时间表示的小时(+00到23+)如果你想要凌晨1点，下午3点等，你需要把它找出来：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1506829|SELECT+Run_Time_Hour+=
CASE+DATEPART(HOUR,+R.date_schedule)
++++WHEN+0+THEN++'12AM'
++++WHEN+1+THEN+++'1AM'
++++WHEN+2+THEN+++'2AM'
++++WHEN+3+THEN+++'3AM'
++++WHEN+4+THEN+++'4AM'
++++WHEN+5+THEN+++'5AM'
++++WHEN+6+THEN+++'6AM'
++++WHEN+7+THEN+++'7AM'
++++WHEN+8+THEN+++'8AM'
++++WHEN+9+THEN+++'9AM'
++++WHEN+10+THEN+'10AM'
++++WHEN+11+THEN+'11AM'
++++WHEN+12+THEN+'12PM'
++++ELSE+CONVERT(varchar,+DATEPART(HOUR,+R.date_schedule)-12)+%2B+'PM'
END
FROM
++++dbo.ARCHIVE_RUN_SCHEDULE+R|code-block|syntax|javascript|1506830|entityMap^0|0|M|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

<code>DATEPART(HOUR, [date])</code> returns the hour in military time ( 00 to 23 )
If you want 1AM, 3PM etc, you need to case it out:

<pre><code>SELECT Run_Time_Hour =
CASE DATEPART(HOUR, R.date_schedule)
 WHEN 0 THEN '12AM'
 WHEN 1 THEN '1AM'
 WHEN 2 THEN '2AM'
 WHEN 3 THEN '3AM'
 WHEN 4 THEN '4AM'
 WHEN 5 THEN '5AM'
 WHEN 6 THEN '6AM'
 WHEN 7 THEN '7AM'
 WHEN 8 THEN '8AM'
 WHEN 9 THEN '9AM'
 WHEN 10 THEN '10AM'
 WHEN 11 THEN '11AM'
 WHEN 12 THEN '12PM'
 ELSE CONVERT(varchar, DATEPART(HOUR, R.date_schedule)-12) + 'PM'
END
FROM
 dbo.ARCHIVE_RUN_SCHEDULE R
</code></pre>

blocks|key|1292483|text|也试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1292484|SELECT+CONVERT(CHAR(8),GETDATE(),108)|code-block|syntax|javascript|1292485|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this one too:

<pre><code>SELECT CONVERT(CHAR(8),GETDATE(),108)
</code></pre>

blocks|key|1507027|text|select+case+when+[am+or+_pm]+='PM'+and+datepart(HOUR,time_received)<>12+
+++++++++++then+dateadd(hour,12,time_received)+
+++++++++++else+time_received+
+++++++END+
from+table|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1507028|作品|unstyled|1507029|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>select case when [am or _pm] ='PM' and datepart(HOUR,time_received)&lt;&gt;12 
 then dateadd(hour,12,time_received) 
 else time_received 
 END 
from table
</code></pre>

works

blocks|key|1292567|text|要包括AM+/+PM+-请使用以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1292568|SELECT+
++concat(case+when+datepart(hour,getdate())+%25+12+=+0+then+12+
++++++++++++++else+datepart(hour,getdate())+%25+12+end,
+++++++++case+when+datepart(hour,getdate())+<+12+then+'+AM'+
++++++++++++++else+'+PM'+end
++++++++)|code-block|syntax|javascript|1292569|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

To include AM / PM - use the below:
<pre><code>SELECT 
 concat(case when datepart(hour,getdate()) % 12 = 0 then 12 
 else datepart(hour,getdate()) % 12 end,
 case when datepart(hour,getdate()) &lt; 12 then ' AM' 
 else ' PM' end
 )
</code></pre>

blocks|key|1292500|text|select+convert(time,GETDATE())|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1292501|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>select convert(time,GETDATE())
</code></pre>

blocks|key|1292226|text|必须使用datepart()|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1292227|like+


datepart(hour+,+getdate())|code-block|syntax|javascript|1292228|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

you must use datepart()

<pre><code>like 


datepart(hour , getdate())
</code></pre>

I can extract the month and day by using <code>Day(Date())</code>, <code>Month(Date())</code>. I can't extract hours, with <code>HOUR(Date())</code>. I get the following error.

<pre><code>'HOUR' is not a recognized built-in function name.
</code></pre>

How can I extract hours?

Extracting hours from a DateTime (SQL Server 2005)

我可以通过使用Day(Date())，Month(Date())来提取月份和日期。和HOUR(Date())在一起我抽不出时间。我得到以下错误。'HOUR' is not a recognized built-in function name.如何提取小时数？

问从DateTime中提取小时数(SQL Server2005)
EN

回答 11

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问从DateTime中提取小时数(SQL Server2005)EN

回答 11

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问从DateTime中提取小时数(SQL Server2005)
EN