Tutorialspoint

1 Answer
karthikeya Boyini

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;

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;

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)

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