How to sum two columns to create a new column in mysql

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Create table marks
(
MId int primary key,
TheoryMarks float,
Practical Marks float
)

Now i need to add a fourth column named ObtainedMarks as TheoryMarks+PracticalMarks.

This works with SqlServer.

How to do this?

What I have tried:

Create table marks
(
MId int primary key,
TheoryMarks float,
Practical Marks float,
TheoryMarks+PracticalMarks As ObtainedMarks
)

Posted 15-Jun-16 21:03pm

Anaya Upadhyay

Updated 15-Jun-16 21:06pm

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OriginalGriff · Answer 1 · 2016-06-15T21:06:00

Solution 1

Use a Generated Column[^] - it allows you to create a column which is an expression and either automatically set the value when the row is stored, or calculate it on the fly when you read it.

Posted 15-Jun-16 21:06pm

OriginalGriff