Get ONLY the numbers out of a string? MySQL SQL: MySQL, SQL, Convert, String

Get ONLY the numbers out of a string? MySQL SQL

How can I get only the numeric values from a string in MySQL?

I need:
'abcde123456' -> '123456'
'(test_123)' -> '123'
'(ThisisText678)' -> '678'

With a regex in perl this would be 1 line of code. But I need it inside a SELECT query.

Thank you.

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This solution works for MySQL

DELIMITER $$
 
DROP FUNCTION IF EXISTS `uReplaceNon_Numer`$$
 
CREATE FUNCTION `uReplaceNon_Numer`(in_phone varchar(50)) RETURNS varchar(50) CHARSET latin1
    NO SQL
BEGIN
DECLARE ctrNumber varchar(50);
DECLARE finNumber varchar(50) default ' ';
DECLARE sChar varchar(2);
DECLARE inti INTEGER default 1;
-- RETURN 'hello1';
    IF length(in_phone) > 0 THEN
-- RETURN 'hello2';
	WHILE(inti <= length(in_phone)) DO
-- RETURN 'hello3';
		SET sChar= SUBSTRING(in_phone,inti,1);
-- RETURN sChar;
                SET ctrNumber= FIND_IN_SET(sChar,'0,1,2,3,4,5,6,7,8,9');
-- RETURN ctrNumber;
		
                IF ctrNumber > 0 THEN
			SET finNumber=CONCAT(finNumber,sChar);
-- RETURN CONCAT('in if',finNumber);
                ELSE
			SET finNumber=CONCAT(finNumber,' ');
-- RETURN CONCAT('in else',finNumber);
                END IF;
		SET inti=inti+1;
	END WHILE;
	RETURN finNumber;
    ELSE
	RETURN 'Invalid';
    END IF;
	
END$$
 
DELIMITER ;
 
## Usage
 
select TRIM(BOTH FROM uReplaceNon_Numer('abcde123456'));
 
123456
 
select TRIM(BOTH FROM uReplaceNon_Numer('ThisisText678'));
 
678

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Get ONLY the numbers out of a string? MySQL SQL

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MySQL

SQL

Convert

String

SQL Query Syntax

MySQL Server

Databases Miscellaneous

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