[MSSQL]角半角转换函数
2012-02-16 12:35
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--(此函数部分思路参考了CSDN上大力的转换函数) --邹建2005.01(引用请保留此信息)--*/ go --创建函数 create function SBC2DBC ( @str nvarchar(4000), --要转换的字符串 @flag bit --转换标志,0转换成半角,1转换成全角 ) returns nvarchar(4000) as begin declare @pat nvarchar(8),@step int,@i int,@spc int if @flag=0 select @pat=N'%[!-~]%',@step=-65248,@str=replace(@str,N' ',N' ') else select @pat=N'%[!-~]%',@step=65248,@str=replace(@str,N' ',N' ') set @i=patindex(@pat collate latin1_general_bin,@str) while @i>0 select @str=replace(@str,substring(@str,@i,1),nchar(unicode(substring(@str,@i,1))+@step)) ,@i=patindex(@pat collate latin1_general_bin,@str) return(@str) end --测试示例 select dbo.SBC2DBC('~~~~ca!b',1) --运行结果 /* ~~~~ca!b */ --附半角全角表 /* ASCII 全角字符 Unicode 半角字符 Unicode 0x20 " "空格U+3000 " "空格U+0020 0x21 !U+ff01 ! U+0021 0x22 "U+ff02 " U+0022 0x23 #U+ff03 # U+0023 0x24 $U+ff04 $ U+0024 0x25 %U+ff05 % U+0025 0x26 &U+ff06 & U+0026 0x27 'U+ff07 ' U+0027 0x28 (U+ff08 ( U+0028 0x29 )U+ff09 ) U+0029 0x2a *U+ff0a * U+002a 0x2b +U+ff0b + U+002b 0x2c ,U+ff0c , U+002c 0x2d -U+ff0d - U+002d 0x2e .U+ff0e . U+002e 0x2f /U+ff0f / U+002f 0x30 0U+ff10 0 U+0030 0x31 1U+ff11 1 U+0031 0x32 2U+ff12 2 U+0032 0x33 3U+ff13 3 U+0033 0x34 4U+ff14 4 U+0034 0x35 5U+ff15 5 U+0035 0x36 6U+ff16 6 U+0036 0x37 7U+ff17 7 U+0037 0x38 8U+ff18 8 U+0038 0x39 9U+ff19 9 U+0039 0x3a :U+ff1a : U+003a 0x3b ;U+ff1b ; U+003b 0x3c <U+ff1c < U+003c 0x3d =U+ff1d = U+003d 0x3e >U+ff1e > U+003e 0x3f ?U+ff1f ? U+003f 0x40 @U+ff20 @ U+0040 0x41 AU+ff21 A U+0041 0x42 BU+ff22 B U+0042 0x43 CU+ff23 C U+0043 0x44 DU+ff24 D U+0044 0x45 EU+ff25 E U+0045 0x46 FU+ff26 F U+0046 0x47 GU+ff27 G U+0047 0x48 HU+ff28 H U+0048 0x49 IU+ff29 I U+0049 0x4a JU+ff2a J U+004a 0x4b KU+ff2b K U+004b 0x4c LU+ff2c L U+004c 0x4d MU+ff2d M U+004d 0x4e NU+ff2e N U+004e 0x4f OU+ff2f O U+004f 0x50 PU+ff30 P U+0050 0x51 QU+ff31 Q U+0051 0x52 RU+ff32 R U+0052 0x53 SU+ff33 S U+0053 0x54 TU+ff34 T U+0054 0x55 UU+ff35 U U+0055 0x56 VU+ff36 V U+0056 0x57 WU+ff37 W U+0057 0x58 XU+ff38 X U+0058 0x59 YU+ff39 Y U+0059 0x5a ZU+ff3a Z U+005a 0x5b [U+ff3b [ U+005b 0x5c \U+ff3c / U+005c 0x5d ]U+ff3d ] U+005d 0x5e ^U+ff3e ^ U+005e 0x5f _U+ff3f _ U+005f 0x60 `U+ff40 ` U+0060 0x61 aU+ff41 a U+0061 0x62 bU+ff42 b U+0062 0x63 cU+ff43 c U+0063 0x64 dU+ff44 d U+0064 0x65 eU+ff45 e U+0065 0x66 fU+ff46 f U+0066 0x67 gU+ff47 g U+0067 0x68 hU+ff48 h U+0068 0x69 iU+ff49 i U+0069 0x6a jU+ff4a j U+006a 0x6b kU+ff4b k U+006b 0x6c lU+ff4c l U+006c 0x6d mU+ff4d m U+006d 0x6e nU+ff4e n U+006e 0x6f oU+ff4f o U+006f 0x70 pU+ff50 p U+0070 0x71 qU+ff51 q U+0071 0x72 rU+ff52 r U+0072 0x73 sU+ff53 s U+0073 0x74 tU+ff54 t U+0074 0x75 uU+ff55 u U+0075 0x76 vU+ff56 v U+0076 0x77 wU+ff57 w U+0077 0x78 xU+ff58 x U+0078 0x79 yU+ff59 y U+0079 0x7a zU+ff5a z U+007a 0x7b {U+ff5b { U+007b 0x7c |U+ff5c | U+007c 0x7d }U+ff5d } U+007d 0x7e ~U+ff5e ~ U+007e */