Mysql replace regex

Mysql regex replace

REGEXP_REPLACE(expression, pattern, replacement[, position[, occurrence[, match_type]]])

Example 1 - remove all "-" characters
SELECT REGEXP_REPLACE( fieldname, '-', '' ) AS newfieldname FROM tablename

Source: database.guide

Mysql regexp match word

SELECT *
FROM table 
WHERE keywords REGEXP '[[:<:]]rid[[:>:]]'

Source: stackoverflow.com

Mysql regexp replace

WITH t AS (SELECT 'aaa <b>bbb</b> ccc' AS teststring FROM dual)

SELECT
  teststring,
  regexp_replace(teststring, '<.+>') AS reg1,
  regexp_replace(teststring, '<.*>') AS reg2,
  regexp_replace(teststring, '<.*?>') AS reg3
FROM t


TESTSTRING             REG1        REG2          REG3
aaa <b>bbb</b> ccc     aaa ccc     aaa ccc       aaa bbb ccc

Source: stackoverflow.com

Mysql replace regex

DELIMITER $$

CREATE FUNCTION  `regex_replace`(pattern VARCHAR(1000),replacement VARCHAR(1000),original VARCHAR(1000))
RETURNS VARCHAR(1000)
DETERMINISTIC
BEGIN 
 DECLARE temp VARCHAR(1000); 
 DECLARE ch VARCHAR(1); 
 DECLARE i INT;
 SET i = 1;
 SET temp = '';
 IF original REGEXP pattern THEN 
  loop_label: LOOP 
   IF i>CHAR_LENGTH(original) THEN
    LEAVE loop_label;  
   END IF;
   SET ch = SUBSTRING(original,i,1);
   IF NOT ch REGEXP pattern THEN
    SET temp = CONCAT(temp,ch);
   ELSE
    SET temp = CONCAT(temp,replacement);
   END IF;
   SET i=i+1;
  END LOOP;
 ELSE
  SET temp = original;
 END IF;
 RETURN temp;
END$$

DELIMITER ;

Source: stackoverflow.com

Similar codes

0 vote166 views1 answer
How to print sql query
SQL
0 vote164 views1 answer
Allow all local clients (local socket connections) to connect to the kodekloud_db1
SQL
0 vote171 views1 answer
Mysql multiple group by
SQL
0 vote191 views2 answers
How to truncate all table in mysql workbench
SQL
0 vote196 views1 answer
Sql date time query find
SQL
1 vote170 views1 answer
Mysql size int
SQL
2 votes175 views1 answer
Sql server: select column values as comma separated string
SQL
0 vote190 views1 answer
Mssql unique key accept nulls
SQL
15 votes162 views2 answers
Sql order by multiple columns
SQL
2 votes177 views1 answer
Datetrunc
SQL