go
-- 创建函数(作者：csdn邹建)
create function getstrarrlength (@str varchar(8000))
returns int
as
begin
declare @int_return int
declare @start int
declare @next int
declare @location int
select @str =','+ @str +','
select @str=replace(@str,',,',',')
select @start =1
select @next =1
select @location = charindex(',',@str,@start)
while (@location <>0)
begin
select @start = @location +1
select @location = charindex(',',@str,@start)
select @next =@next +1
end
select @int_return = @next-2
return @int_return
end
-- 测试示例
SELECT [dbo].[getstrarrlength]('1,2,3,4,a,b,c,d')
--运行结果
/*
8
*/
/*
说明：
我开始考虑直接看逗号的个数，用replace替换逗号，求长度差就可以了，但是这里这个函数两个逗号相邻做了处理。
*/
