3

我需要改变

ABC2001  
ABCD2001 
ASDF111111

2001
2001
111111

我需要删除 SQL Server 中的字母字符,知道吗?

4

1 回答 1

0

下面的功能会照顾

create function NoLetters(@string2number varchar(200)) 
 returns varchar(200)
as
begin
  declare @c int
  declare @num varchar(200)
  set @num = ''
  declare @txtCurrent char(1)
  set @c=1
  while @c<=len(@string2number)
    begin
     set @txtCurrent = substring(@string2number,@c,1)
     if ascii(@txtCurrent) between 48 and 57
       set @num = @num + @txtCurrent
     set @c=@c+1
   end
 return @num
end
于 2012-05-18T17:08:34.497 回答