msSql_函数_从字符串取出数字[zt]

Create  FUNCTION fn_numeric(@s varchar(2000))
 RETURNS varchar(200)
 
AS
BEGIN
 DECLARE @r varchar(200)
 SET @r =''
 WHILE PATINDEX('%[0-9|.]%',@s)>0
 BEGIN
  SET @r = @r + SubString(@s, PATINDEX('%[0-9|.]%', @s), 1)
  SET @s = Stuff(@s, 1, PATINDEX('%[0-9|.]%', @s), '')
 end
 RETURN @r

--调用 select dbo.fn_num('a2h5我j.8 ') 结果 25.8
END