Add a character in the end to column values with MySQL SELECT?

For this, you need to perform concatenation using CONCAT().

Let us first create a table −

mysql> create table DemoTable766 (Name varchar(100));
Query OK, 0 rows affected (0.65 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable766 values('John');
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable766 values('Sam');
Query OK, 1 row affected (0.20 sec)
mysql> insert into DemoTable766 values('Carol');
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable766 values('David');
Query OK, 1 row affected (0.20 sec)
mysql> insert into DemoTable766 values('Bob');
Query OK, 1 row affected (0.12 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable766;

This will produce the following output -

+-------+
| Name  |
+-------+
| John  |
| Sam   |
| Carol |
| David |
| Bob   |
+-------+
5 rows in set (0.00 sec)

Following is the query to add a character in the end to column values −

mysql> select concat(Name,' S') from DemoTable766;

This will produce the following output -

+-------------------+
| concat(Name,' S') |
+-------------------+
| John S            |
| Sam S             |
| Carol S           |
| David S           |
| Bob S             |  
+-------------------+
5 rows in set (0.00 sec)