MySQL - Query Returning Values Matching REGEX Patterns - mysql

Question

I have large tables of freely formatted text strings stored in MySQL database. Within each of those strings I have to find three substrings which are specifically formatted. This problem looks like an ideal fit for MySQL REGEXP pattern matching.
I know that MySQl REGEXP operator returns only True or False. Moreover, because I need to process large tables, I would need to achieve the goal within MySQL and not to involve PHP or any other server side language.
Example of source data:
FirstEntry_somestring_202320047A_210991957_700443250_Lieferadresse:_modified string c/o Logistics, some address and another text
SecondEntry_hereisanothertext_210991957_text_202320047A_and_700443250_another text which does not have any predefined structure
ThirdEntry_700443250_210991957_202320047A_Lieferadresse:_here some address, Logistics, and some another text with address.
FourthEntry some very long text before numbers__202320047A-700443250-210991957-Lieferadresse:, another text with address and company name. None of this text has predefined structure
The examples above have are four strings stored as TEXT datatypes within MySQL table. They do not have any specific structure. I know however, that somewhere in each records must be three numbers freely delimited and but they have specific format:
Regex Format: '\d{3}(30|31|32)\d{4}[A-Z])'
Regex Format:'(\d{3}(99)\d{4})')
Regex Format: '((700)\d{6})'
Could you please help me how can I get the substrings matching the Regex patterns in the text above?
The Server runs on:
Windows OS
IIS 7
MySQL for Windows
PHP
...
Thank you!

Answer 1

MariaDB 10.0.5 (from 2013) is virtually the same as MySQL, but it includes the full set of REGEXP. Also it has REGEXP_REPLACE().
See https://mariadb.com/kb/en/mariadb/pcre/

Answer 2

For those interested in this question, I have developed my own solution using MySQL Stored Procedures.
I think, this is the most valuable solution on this subject on StackOverflow, as it provides real solution. In contrast to others, there were only vague ideas offered:
-- Return REGEX Value
DELIMITER $$
DROP PROCEDURE IF EXISTS RETURNREGEX$$
CREATE PROCEDURE RETURNREGEX(IN strSentence VARCHAR(1024), IN regex_str VARCHAR(1024), IN length_str INT )
BEGIN
DECLARE index_str INT DEFAULT 0;
DECLARE match_str VARCHAR(1024) DEFAULT '';
DECLARE result BOOL DEFAULT FALSE;
REPEAT
-- Get substring with predefined length
SELECT SUBSTRING(strSentence, index_str, length_str) INTO match_str;
-- compare this substring agains REGEX to see if we have match
SELECT match_str REGEXP regex_str INTO result;
SET index_str = index_str + 1;
-- evaluate result (TRUE / FALSE)
UNTIL result OR index_str > length(strSentence)
END REPEAT;
IF result = TRUE THEN SELECT match_str;
ELSE SELECT NULL;
END IF;
END$$
DELIMITER ;