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)
Updated on: 2019-07-30T22:30:26+05:30

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