CONVERT的使用方法: 格式:
CONVERT(data_type,expression[,style])
说明:
此样式一般在时间类型(datetime,smalldatetime)与字符串类型(nchar,nvarchar,char,varchar)
相互转换的时候才用到.
例子:
SELECT CONVERT(varchar(30),getdate(),101) now
结果为
now
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09/15/2001 style数字在转换时间时的含义如下
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Style(2位表示年份) | Style(4位表示年份) | 输入输出格式
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- | 0 or 100 | mon dd yyyy hh:miAM(或PM)
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1 | 101 | mm/dd/yy
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2 | 102 | yy-mm-dd
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3 | 103 | dd/mm/yy
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4 | 104 | dd-mm-yy
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5 | 105 | dd-mm-yy
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6 | 106 | dd mon yy
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7 | 107 | mon dd,yy
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8 | 108 | hh:mm:ss
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- | 9 or 109 | mon dd yyyy hh:mi:ss:mmmmAM(或PM)
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10 | 110 | mm-dd-yy
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11 | 111 | yy/mm/dd
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12 | 112 | yymmdd
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- | 13 or 113 | dd mon yyyy hh:mi:ss:mmm(24小时制)
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14 | 114 | hh:mi:ss:mmm(24小时制)
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- | 20 or 120 | yyyy-mm-dd hh:mi:ss(24小时制)
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- | 21 or 121 | yyyy-mm-dd hh:mi:ss:mmm(24小时制)
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可以使用的 style 值:
Style ID | Style 格式 |
---|---|
100 或者 0 | mon dd yyyy hh:miAM (或者 PM) |
101 | mm/dd/yy |
102 | yy.mm.dd |
103 | dd/mm/yy |
104 | dd.mm.yy |
105 | dd-mm-yy |
106 | dd mon yy |
107 | Mon dd,yy |
108 | hh:mm:ss |
109 或者 9 | mon dd yyyy hh:mi:ss:mmmAM(或者 PM) |
110 | mm-dd-yy |
111 | yy/mm/dd |
112 | yymmdd |
113 或者 13 | dd mon yyyy hh:mm:ss:mmm(24h) |
114 | hh:mi:ss:mmm(24h) |
120 或者 20 | yyyy-mm-dd hh:mi:ss(24h) |
121 或者 21 | yyyy-mm-dd hh:mi:ss.mmm(24h) |
126 | yyyy-mm-ddThh:mm:ss.mmm(没有空格) |
130 | dd mon yyyy hh:mi:ss:mmmAM |
131 | dd/mm/yy hh:mi:ss:mmmAM |
sqlServer之Convert 函数应用
Select CONVERT(varchar(100),GETDATE(),0): 05 16 2006 10:57AMSelect CONVERT(varchar(100),1): 05/16/06
Select CONVERT(varchar(100),2): 06.05.16
Select CONVERT(varchar(100),3): 16/05/06
Select CONVERT(varchar(100),4): 16.05.06
Select CONVERT(varchar(100),5): 16-05-06
Select CONVERT(varchar(100),6): 16 05 06
Select CONVERT(varchar(100),7): 05 16,06
Select CONVERT(varchar(100),8): 10:57:46
Select CONVERT(varchar(100),9): 05 16 2006 10:57:46:827AM
Select CONVERT(varchar(100),10): 05-16-06
Select CONVERT(varchar(100),11): 06/05/16
Select CONVERT(varchar(100),12): 060516
Select CONVERT(varchar(100),13): 16 05 2006 10:57:46:937
Select CONVERT(varchar(100),14): 10:57:46:967
Select CONVERT(varchar(100),20): 2006-05-16 10:57:47
Select CONVERT(varchar(100),21): 2006-05-16 10:57:47.157
Select CONVERT(varchar(100),22): 05/16/06 10:57:47 AM
Select CONVERT(varchar(100),23): 2006-05-16
Select CONVERT(varchar(100),24): 10:57:47
Select CONVERT(varchar(100),25): 2006-05-16 10:57:47.250
Select CONVERT(varchar(100),100): 05 16 2006 10:57AM
Select CONVERT(varchar(100),101): 05/16/2006
Select CONVERT(varchar(100),102): 2006.05.16
Select CONVERT(varchar(100),103): 16/05/2006
Select CONVERT(varchar(100),104): 16.05.2006
Select CONVERT(varchar(100),105): 16-05-2006
Select CONVERT(varchar(100),106): 16 05 2006
Select CONVERT(varchar(100),107): 05 16,2006
Select CONVERT(varchar(100),108): 10:57:49
Select CONVERT(varchar(100),109): 05 16 2006 10:57:49:437AM
Select CONVERT(varchar(100),110): 05-16-2006
Select CONVERT(varchar(100),111): 2006/05/16
Select CONVERT(varchar(100),112): 20060516
Select CONVERT(varchar(100),113): 16 05 2006 10:57:49:513
Select CONVERT(varchar(100),114): 10:57:49:547
Select CONVERT(varchar(100),120): 2006-05-16 10:57:49
Select CONVERT(varchar(100),121): 2006-05-16 10:57:49.700
Select CONVERT(varchar(100),126): 2006-05-16T10:57:49.827
Select CONVERT(varchar(100),130): 18 ???? ?????? 1427 10:57:49:907AM
Select CONVERT(varchar(100),131): 18/04/1427 10:57:49:920AM