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How to replace a particular character in a MySQL column?
To replace a particular character, use REPLACE() and to update, use the UPDATE command. Let us first create a table −
mysql> create table DemoTable1899 ( Code varchar(20) ); Query OK, 0 rows affected (0.00 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1899 values('John_123');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1899 values('32189_Sam_987');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1899 values('Miller_David_456_909');
Query OK, 1 row affected (0.00 sec)Display all records from the table using select statement −
mysql> select * from DemoTable1899;
This will produce the following output −
+----------------------+ | Code | +----------------------+ | John_123 | | 32189_Sam_987 | | Miller_David_456_909 | +----------------------+ 3 rows in set (0.00 sec)
Here is the query to replace a particular character −
mysql> update DemoTable1899 set Code=replace(Code,'_',''); Query OK, 3 rows affected (0.00 sec) Rows matched: 3 Changed: 3 Warnings: 0
Let us check the table records once again:
mysql> select * from DemoTable1899;
This will produce the following output −
+-------------------+ | Code | +-------------------+ | John123 | | 32189Sam987 | | MillerDavid456909 | +-------------------+ 3 rows in set (0.00 sec)
Updated on: 27-Dec-2019
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