MySQL query to increment one of the column values

Let us first create a table −

mysql> create table DemoTable
-> (
-> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,
-> Name varchar(100),
-> Score int
-> );
Query OK, 0 rows affected (0.78 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable(Name,Score) values('John',68);
Query OK, 1 row affected (0.23 sec)

mysql> insert into DemoTable(Name,Score) values('Carol',98);
Query OK, 1 row affected (0.27 sec)

mysql> insert into DemoTable(Name,Score) values('David',89);
Query OK, 1 row affected (0.16 sec)

mysql> insert into DemoTable(Name,Score) values('Robert',67);
Query OK, 1 row affected (0.14 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable;

Output

This will produce the following output −

+----+--------+-------+
| Id | Name   | Score |
+----+--------+-------+
| 1 | John    | 68    |
| 2 | Carol   | 98    |
| 3 | David   | 89    |
| 4 | Robert  | 67    |
+----+--------+-------+
4 rows in set (0.00 sec)

Following is the query to increment one of the column values by 1 −

mysql> update DemoTable set Score=Score+1 where Id=3;
Query OK, 1 row affected (0.22 sec)
Rows matched: 1 Changed: 1 Warnings: 0

Let us check table records once again −

mysql> select *from DemoTable;

Output

This will produce the following output −

+----+--------+-------+
| Id | Name   | Score |
+----+--------+-------+
| 1 | John    | 68    |
| 2 | Carol   | 98    | 
| 3 | David   | 90    |
| 4 | Robert  | 67    |
+----+--------+-------+
4 rows in set (0.00 sec)