How to trim commas with MySQL?

The syntax is as follows to trim commas −

SELECT TRIM(BOTH ',' FROM yourColumnName) from yourTableName;

Let us see an example −

mysql> create table TrimCommasDemo    -> (    -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> AllTechnicalSkills text    -> ); Query OK, 0 rows affected (0.81 sec)

Now you can insert some records in the table using insert command. The query is as follows −

mysql> insert into TrimCommasDemo(AllTechnicalSkills) values(',C,C++,Java,'); Query OK, 1 row affected (0.14 sec) mysql> insert into TrimCommasDemo(AllTechnicalSkills) values(',MySQL,SQL Server,MongoDB,'); Query OK, 1 row affected (0.13 sec) mysql> insert into TrimCommasDemo(AllTechnicalSkills) values(',Spring Framework,Hibernate Framework,'); Query OK, 1 row affected (0.13 sec)

Display all records from the table using select statement. The query is as follows −

mysql> select *from TrimCommasDemo;

Here is the output −

+----+----------------------------------------+ | Id | AllTechnicalSkills | +----+----------------------------------------+ | 1 | ,C,C++,Java, | | 2 | ,MySQL,SQL Server,MongoDB, | | 3 | ,Spring Framework,Hibernate Framework, | +----+----------------------------------------+ 3 rows in set (0.00 sec)

The following is the query to trim commas from leading and trailing with MySQL −

mysql> select TRIM(BOTH ',' FROM AllTechnicalSkills) from TrimCommasDemo;

Here is the output −

+----------------------------------------+ | TRIM(BOTH ',' FROM AllTechnicalSkills) | +----------------------------------------+ | C,C++,Java | | MySQL,SQL Server,MongoDB | | Spring Framework,Hibernate Framework | +----------------------------------------+ 3 rows in set (0.00 sec)