How to update multiple rows in MySQL with a specific field value?

To update the value of a specific field in bulk, you can use the UPDATE statement combined with the WHERE clause.

Here is an example: imagine there is a table called “users” with two columns, “username” and “age.” We want to update the values in the “age” column to be 30 in bulk.

UPDATE users SET age = 30 WHERE age < 30;

The above statement will update the “age” field value of all records where the “age” field is less than 30 to 30.

You can modify the WHERE clause according to your needs to filter the records that need to be updated.