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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)
Updated on: 30-Jun-2020
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