导读:1建站知识sql convert函数使用方法小结整理的比较全了，需要的朋友可以参考下。公司网站建设网站seo优化培训。

CONVERT(data_type,expression[,style]) convert(varchar(10),字段名,转换格式)

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.

语句 结果SELECT CONVERT(varchar(100), GETDATE(), 0) 07 15 2009 4:06PMSELECT CONVERT(varchar(100), GETDATE(), 1) 07/15/09SELECT CONVERT(varchar(100), GETDATE(), 2) 09.07.15SELECT CONVERT(varchar(100), GETDATE(), 3) 15/07/09SELECT CONVERT(varchar(100), GETDATE(), 4) 15.07.09SELECT CONVERT(varchar(100), GETDATE(), 5) 15-07-09SELECT CONVERT(varchar(100), GETDATE(), 6) 15 07 09SELECT CONVERT(varchar(100), GETDATE(), 7) 07 15, 09SELECT CONVERT(varchar(100), GETDATE(), 8) 16:06:26SELECT CONVERT(varchar(100), GETDATE(), 9) 07 15 2009 4:06:26:513PMSELECT CONVERT(varchar(100), GETDATE(), 10) 07-15-09SELECT CONVERT(varchar(100), GETDATE(), 11) 09/07/15SELECT CONVERT(varchar(100), GETDATE(), 12) 090715SELECT CONVERT(varchar(100), GETDATE(), 13) 15 07 2009 16:06:26:513SELECT CONVERT(varchar(100), GETDATE(), 14) 16:06:26:513SELECT CONVERT(varchar(100), GETDATE(), 20) 2009-07-15 16:06:26SELECT CONVERT(varchar(100), GETDATE(), 21) 2009-07-15 16:06:26.513SELECT CONVERT(varchar(100), GETDATE(), 22) 07/15/09 4:06:26 PM营销型网站建设SELECT CONVERT(varchar(100), GETDATE(), 23) 2009-07-15SELECT CONVERT(varchar(100), GETDATE(), 24) 16:06:26SELECT CONVERT(varchar(100), GETDATE(), 25) 2009-07-15 16:06:26.513SELECT CONVERT(varchar(100), GETDATE(), 100) 07 15 2009 4:06PMSELECT CONVERT(varchar(100), GETDATE(), 101) 07/15/2009SELECT CONVERT(varchar(100), GETDATE(), 102) 2009.07.15SELECT CONVERT(varchar(100), GETDATE(), 103) 15/07/2009SELECT CONVERT(varchar(100), GETDATE(), 104) 15.07.2009SELECT CONVERT(varchar(100), GETDATE(), 105) 15-07-2009SELECT CONVERT(varchar(100), GETDATE(), 106) 15 07 2009SELECT CONVERT(varchar(100), GETDATE(), 107) 07 15, 2009SELECT CONVERT(varchar(100), GETDATE(), 108) 16:06:26SELECT CONVERT(varchar(100), GETDATE(), 109) 07 15 2009 4:06:26:513PMSELECT CONVERT(varchar(100), GETDATE(), 110) 07-15-2009SELECT CONVERT(varchar(100), GETDATE(), 111) 2009/07/15SELECT CONVERT(varchar(100), GETDATE(), 112) 20090715SELECT CONVERT(varchar(100), GETDATE(), 113) 15 07 2009 16:06:26:513SELECT CONVERT(varchar(100), GETDATE(), 114) 16:06:26:513SELECT CONVERT(varchar(100), GETDATE(), 120) 2009-07-15 16:06:26SELECT CONVERT(varchar(100), GETDATE(), 121) 2009-07-15 16:06:26.513SELECT CONVERT(varchar(100), GETDATE(), 126) 2009-07-15T16:06:26.513SELECT CONVERT(varchar(100), GETDATE(), 130) 23 ??? 1430 4:06:26:513PMSELECT CONVERT(varchar(100), GETDATE(), 131) 23/07/1430 4:06:26:513PM

style数字在转换时间时的含义如下:

------------------------------------------------------------------------------------------------------------Style(2位表示年份) | Style(4位表示年份) | 输入输出格式 ------------------------------------------------------------------------------------------------------------0 | 100 | mon dd yyyy hh:miAM(或PM) ------------------------------------------------------------------------------------------------------------1 | 101 美国 | mm/dd/yy ------------------------------------------------------------------------------------------------------------2 | 102 ANSI | yy-mm-dd ------------------------------------------------------------------------------------------------------------3 | 103 英法 | dd/mm/yy ------------------------------------------------------------------------------------------------------------4 | 104 德国 | dd.mm.yy ------------------------------------------------------------------------------------------------------------5 | 105 意大利 | dd-mm-yy ------------------------------------------------------------------------------------------------------------6 | 106 | dd mon yy ------------------------------------------------------------------------------------------------------------7 | 107 | mon dd,yy ------------------------------------------------------------------------------------------------------------8 | 108 | hh:mm:ss ------------------------------------------------------------------------------------------------------------9 | 109 | mon dd yyy网seo优化趋势y hh:mi:ss:mmmmAM(或PM)------------------------------------------------------------------------------------------------------------10 | 110 美国 | mm-dd-yy ------------------------------------------------------------------------------------------------------------11 | 111 日本 | yy/mm/dd ------------------------------------------------------------------------------------------------------------12 | 112 ISO | yymmdd --------------------------------------seo网站优化----------------------------------------------------------------------13 | 113 欧洲默认值 | dd mon yyyy hh:mi:ss:mmm(24小时制) ------------------------------------------------------------------------------------------------------------14 | 114 | hh:mi:ss:mmm(24小时制) ------------------------------------------------------------------------------------------------------------20 | 120 ODBC 规范 | yyyy-mm-dd hh:mi:ss(24小时制) ------------------------------------------------------------------------------------------------------------21 | 121 | yyyy-mm-dd hh:mi:ss:mmm(24小时制) ------------------------------------------------------------------------------------------------------------

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