Update MySQL column based on email address?
Let us first create a table −
mysql> create table DemoTable
-> (
-> EmailAddress varchar(20),
-> Score int
-> );
Query OK, 0 rows affected (1.05 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values('Chris@gmail.com',67);
Query OK, 1 row affected (0.20 sec)
mysql> insert into DemoTable values('Robert@gmail.com',57);
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable values('David@gmail.com',98);
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 −
+------------------+-------+
| EmailAddress | Score |
+------------------+-------+
| Chris@gmail.com | 67 |
| Robert@gmail.com | 57 |
| David@gmail.com | 98 |
+------------------+-------+
3 rows in set (0.00 sec)
Here is the query to update MySQL column based on email address −
mysql> update DemoTable
-> set Score=89
-> where EmailAddress='Robert@gmail.com';
Query OK, 1 row affected (0.25 sec)
Rows matched: 1 Changed: 1 Warnings: 0
Let us check the table records once again −
mysql> select *from DemoTable;
This will produce the following output −
+------------------+-------+
| EmailAddress | Score |
+------------------+-------+
| Chris@gmail.com | 67 |
| Robert@gmail.com | 89 |
| David@gmail.com | 98 |
+------------------+-------+
3 rows in set (0.00 sec)
Published on 18-Dec-2019 09:54:17
