Update multiple columns of a single row MySQL?


Let us first create a table −

mysql> create table DemoTable
   -> (
   -> FirstName varchar(100),
   -> Age int,
   -> Score int
   -> );
Query OK, 0 rows affected (0.62 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable values('Robert',21,78);
Query OK, 1 row affected (0.10 sec)

mysql> insert into DemoTable values('Bob',20,90);
Query OK, 1 row affected (0.21 sec)

mysql> insert into DemoTable values('Sam',22,69);
Query OK, 1 row affected (0.20 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable;

Output

+-----------+------+-------+
| FirstName | Age  | Score |
+-----------+------+-------+
| Robert    | 21   | 78    |
| Bob       | 20   | 90    |
| Sam       | 22   | 69    |
+-----------+------+-------+
3 rows in set (0.00 sec)

Following is the query to update columns Age and Score for only a row with FirstName “Bob” −

mysql> update DemoTable
   -> set Age=25,
   -> Score=Score+9
   -> where FirstName='Bob';
Query OK, 1 row affected (0.17 sec)
Rows matched: 1  Changed: 1 Warnings: 0

Let us check the table records once again −

mysql> select *from DemoTable;

Output

+-----------+------+-------+
| FirstName | Age  | Score |
+-----------+------+-------+
| Robert    | 21   | 78    |
| Bob       | 25   | 99    |
| Sam       | 22   | 69    |
+-----------+------+-------+
3 rows in set (0.00 sec)
raja
Published on 10-Jul-2019 11:58:30
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