Question

I have a table called courses. The fields are:

id, category, sortorder, fullname, etc.....

What I am trying to do is given the category I want to find the maximum sortorder number in that category and then increment that number and use this new number for my new row.

For example: I have category = 30 and it will return the numbers 1 to 10. I want to retrieve 10 because it is the highest number but I don’t know what the highest number will actually be in each query. After I get the value 10 I will add 1 to it and then use it for my new course.

How should I do this ?

Thanks!

Answer 1

You can use the MAX() function of MySQL.

So do something like:

SELECT MAX(sortorder) as maximum FROM courses WHERE category = 10