Preferred method of updating and setting SQL [closed]

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I'm learning SQL at the moment, and have found some different methods of updating and setting a table.

For this example, I am wondering what is the "most correct way" of doing this?

    UPDATE student
    SET test1 = 7, test2 = 9
    where stuid = 999

or

    UPDATE student
    SET test1 = 7
    where stuid = 999
    UPDATE student
    SET test2 = 9
    where stuid = 999

Thanks.

Answer 1

Firstly always Google yourself before posting any Questions.

The answer (as said by others) is off-course the Method 1. As it will not reload the database Twice.

Also if you are Beginner try to go learn from W3Schools

Answer 2

Running one update statement is always better than two. I choose the first one. It will only run on the database once and updates two columns.

Answer 3

I will go with first statement because its just 1 call to database server.

Answer 4

I suggest the first, don't repeat yourself, and always write neat codes.

Answer 5

Statement 1 is without any doubt better than statement 2 ... Why to load the db server twice than required ...