SQLServer中的切割字符串SplitString函数男篮世界杯赔
分类:计算机教程

复制代码 代码如下: SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO /* by kudychen 2011-9-28 */ CREATE function [dbo].[SplitString] ( @Input nvarchar(max), --input string to be separated @Separator nvarchar(max)=',', --a string that delimit the substrings in the input string @RemoveEmptyEntries bit=1 --the return value does not include array elements that contain an empty string ) returns @TABLE table ( [Id] int identity(1,1), [Value] nvarchar(max) ) as begin declare @Index int, @Entry nvarchar(max) set @Index = charindex(@Separator,@Input) while (@Index0) begin set @Entry=ltrim(rtrim(substring(@Input, 1, @Index-1))) if (@RemoveEmptyEntries=0) or (@RemoveEmptyEntries=1 and @Entry'') begin insert into @TABLE([Value]) Values(@Entry) end set @Input = substring(@Input, @Index datalength(@Separator)/2, len(@Input)) set @Index = charindex(@Separator, @Input) end set @Entry=ltrim(rtrim(@Input)) if (@RemoveEmptyEntries=0) or (@RemoveEmptyEntries=1 and @Entry'') begin insert into @TABLE([Value]) Values(@Entry) end return end 如何使用: 复制代码 代码如下: declare @str1 varchar(max), @str2 varchar(max), @str3 varchar(max) set @str1 = '1,2,3' set @str2 = '1###2###3' set @str3 = '1###2###3###' select [Value] from [dbo].[SplitString](@str1, ',', 1) select [Value] from [dbo].[SplitString](@str2, '###', 1) select [Value] from [dbo].[SplitString](@str3, '###', 0) 执行结果: 里面还有个自增的[Id]字段哦,在某些情况下有可能会用上的,例如根据Id来保存排序等等。 例如根据某表的ID保存排序: 复制代码 代码如下:update a set a.[Order]=t.[Id] from [dbo].[表] as a join [dbo].SplitString('1,2,3', ',', 1) as t on a.[Id]=t.[Value] 具体的应用请根据自己的情况来吧:)作者:Kudy

在sql中没有系统带的的字符分割函数,我们利用了一些功能字了一个分割函数有需要的同学可以参考一下。 代码如下复制代码

SET ANSI_NULLS ONGOSET QUOTED_IDENTIFIER ONGO

/*by kudychen 2011-9-28 */CREATE function [dbo].[SplitString]( @Input nvarchar(max), --input string to be separated @Separator nvarchar(max)=',', --a string that delimit the substrings in the input string @RemoveEmptyEntries bit=1 --the return value does not include array elements that contain an empty string)returns @TABLE table ( [Id] int identity(1,1), [Value] nvarchar(max)) asbegin declare @Index int, @Entry nvarchar(max) set @Index = charindex(@Separator,@Input)

while (@Index0) begin set @Entry=ltrim(rtrim(substring(@Input, 1, @Index-1)))

if (@RemoveEmptyEntries=0) or (@RemoveEmptyEntries=1 and @Entry'') begin insert into @TABLE([Value]) Values(@Entry) end

set @Input = substring(@Input, @Index datalength(@Separator)/2, len(@Input)) set @Index = charindex(@Separator, @Input) end

set @Entry=ltrim(rtrim(@Input)) if (@RemoveEmptyEntries=0) or (@RemoveEmptyEntries=1 and @Entry'') begin insert into @TABLE([Value]) Values(@Entry) end return

end

Test Code:

代码如下复制代码

declare @str1 varchar(max), @str2 varchar(max), @str3 varchar(max)

set @str1 = '1,2,3'set @str2 = '1###2###3'set @str3 = '1###2###3###'

select [Value] from [dbo].[SplitString](@str1, ',', 1)select [Value] from [dbo].[SplitString](@str2, '###', 1)select [Value] from [dbo].[SplitString](@str3, '###', 0)

Code:

本文由美洲杯赔率发布于计算机教程,转载请注明出处:SQLServer中的切割字符串SplitString函数男篮世界杯赔

上一篇:中国电信6月净增4G用户262万户 总数达2. 66亿男篮 下一篇:没有了
猜你喜欢
热门排行
精彩图文