Question

Write a command to add a NOT NULL
table.
constraint on FEES column of a student...pls answer I will mark u as brainiest...​

Answer 1

Answer:

To add not null constraint to an existing column in MySQL, we will use the ALTER command. This is a type of validation to restrict the user from entering null values. Let us see an example. Firstly, we will create a table.

Answer 2

Answer:

insert into student "fees" NOT NULL;