MySQL: How to update the value of a field to the original value plus 1

Format: Update table name set field name = Field name + 1  
For example, there is a student table in the database, to add 1 to the student score (score) with ID 1
Update student set score=score+1 where id = 1
If you do not add the where system will not know you specifically to update which record, and cause all of the table score increase 1, of course, unless this is what you intended.

MySQL: How to update the value of a field to the original value plus 1