Update Database Field with SQL

To change the value of a particular field in a database, you can use the SQL UPDATE statement. Here is a simple example:

Assuming there is a table named users, which contains fields id, name, and age, now we want to change the value of the age field to 30 for the user with id 1.

The SQL statement is as follows:

UPDATE users
SET age = 30
WHERE id = 1;

After executing the above SQL statement, the value of the age field for the user with id 1 in the database will be changed to 30. It is important to note that in the UPDATE statement, the SET keyword is used to specify the field to be modified and its new value, while the WHERE keyword is used to specify the condition for the record to be modified.