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1. µ±Ç°ÏµÍ³ÈÕÆÚ¡¢Ê±¼ä
select getdate()
2. dateadd ÔÚÏòÖ¸¶¨ÈÕÆÚ¼ÓÉÏÒ»¶Îʱ¼äµÄ»ù´¡ÉÏ£¬·µ»ØÐ嵀 datetime Öµ
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select dateadd(day,2,'2004-10-15') --·µ»Ø£º2004-10-17 00:00:00.000
3. datediff ·µ»Ø¿çÁ½¸öÖ¸¶¨ÈÕÆÚµÄÈÕÆÚºÍʱ¼ä±ß½çÊý¡£
select datediff(day,'2004-09-01','2004-09-18') --·µ»Ø£º17
4. datepart ·µ»Ø´ú±íÖ¸¶¨ÈÕÆÚµÄÖ¸¶¨ÈÕÆÚ²¿·ÖµÄÕûÊý¡£
SELECT DATEPART(month, '2004-10-15') --·µ»Ø 10
5. datename ·µ»Ø´ú±íÖ¸¶¨ÈÕÆÚµÄÖ¸¶¨ÈÕÆÚ²¿·ÖµÄ×Ö·û´®
SELECT datename(weekday, '2004-10-15') --·µ»Ø£ºÐÇÆÚÎå
6. day(), month(),year() --¿ÉÒÔÓëdatepart¶ÔÕÕÒ»ÏÂ
select µ±Ç°ÈÕÆÚ=convert(varchar(10),getdate(),120)
,µ±Ç°Ê±¼ä=convert(varchar(8),getdate(),114)
select datename(dw,'2004-10-15')
select ±¾ÄêµÚ¶àÉÙÖÜ=datename(week,'2004-10-15')
,½ñÌìÊÇÖܼ¸=datename(weekday,'2004-10-15')
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DateAdd (interval,number,date)
ÒÔintervalÖ¸¶¨µÄ·½Ê½£¬¼ÓÉÏnumberÖ®ºóµÄÈÕÆÚ
DatePart (interval,date)
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DateName (interval,date)
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