Question

如何从此

中删除前导零

number        RESULT WOULD BE LIKE THIS
00000.9         .9
A0001.1         A1.1
G0101.3         G101.3
00808.8         808.8
J0000.5         J.5

Answer 1

declare @input varchar(10);
declare @output varchar(10);
set @input = '00000.9';
while ((ISNUMERIC(substring(@input,1,1)) = 0)  or (substring(@input,1,1) = '0'))   
  begin
    if substring(@input,1,1) = '0'
      begin
      set @input = substring(@input,2,len(@input) )
      end
    else
      if  ISNUMERIC(substring(@input,1,1)) = 0
        begin
          set @output = substring(@input,1,1); 
          set @input = substring(@input,2,len(@input))
        end

end
  if LEN(@output) > 0 
    set @input =  @output + @input
select @input

@input是您的输入

Answer 2

ALTER FUNCTION NUMBER（@NUMBER VARCHAR（7））

RETURNS VARCHAR（7） AS

BEGIN

DECLARE @NUM VARCHAR（1）

DECLARE @ NUM1 VARCHAR（7）

SET @ NUM = SUBSTRING（@ NUMBER，1,1）

IF（@NUM LIKE'[A-Z％]'）

   BEGIN
       SET @NUM1=@NUM+''+CAST(CONVERT(FLOAT,SUBSTRING(@NUMBER,2,7),2)AS VARCHAR(7))
   END

ELSE

  BEGIN
       SET @NUM1=LTRIM(STR(cast(@NUMBER as float),case when len(cast(@NUMBER as float))          > 7 then 7 else len(cast(@NUMBER as float)) end,1))
  END

RETURN @NUM END

从sql中的列中删除前导零

2 个答案: