How to replace all nonnumeric values?

问题

This is TERADATA (not SQL Server, not Oracle )

I have a column of phone numbers:

(312)9879878
(298)989-9878
430-394-2934
394s9048ds987
..........

I need to clean this column into

3129879878
2989899878
4303942934
3949048987
..........

So that only numbers should stay. All other letters, special characters, hyphens ... should be removed. How can I do this?

回答1:

Which release of TD is running at your site? If it's 14 or you got the oTranslate UDF installed you can simply do an old trick nesting Translate:

oTranslate(phonenum, oTranslate(phonenum, '0123456789', ''), '')

回答2:

Answer :

DECLARE @Input varchar(1000)

SET @Input = '01 vishal 98-)6543'

DECLARE @pos INT

SET @Pos = PATINDEX('%[^0-9]%',@Input)

WHILE @Pos > 0

BEGIN

SET @Input = STUFF(@Input,@pos,1,'')

SET @Pos = PATINDEX('%[^0-9]%',@Input)

END

SELECT @Input

Thank You, Vishal Patel

回答3:

I have this function to pull numerics (0-9) from a string:

CREATE FUNCTION NumbersOnly(@STR VARCHAR(2000))
RETURNS VARCHAR(1000)
AS
BEGIN
    DECLARE @N INT
    DECLARE @NN VARCHAR(1000)
    SET @N = 0
    SET @NN = ''

    WHILE @N <= LEN(@STR)
    BEGIN
        IF SUBSTRING(@STR,@N,1) >= '0'
            AND SUBSTRING(@STR,@N,1) <= '9'
        BEGIN
            SET @NN = @NN + SUBSTRING(@STR,@N,1)
        END
        SET @N = @N + 1
    END

RETURN @NN
END

来源：https://stackoverflow.com/questions/19405014/how-to-replace-all-nonnumeric-values