[nycphp-talk] SQL question
David Krings
ramons at gmx.net
Mon Jul 23 15:45:13 EDT 2007
Rob Marscher wrote:
> SELECT
> s.StoryboardID
>> FROM cupscourses c
> LEFT JOIN cupsmodules m ON m.CourseID = c.CourseID
> LEFT JOIN cupslessons l ON l.ModuleID = m.ModuleID
> LEFT JOIN cupspages p ON p.LessonID = l.LessonID
> LEFT JOIN cupsstoryboards s ON s.PageID = p.PageID
> WHERE c.CourseID = 23
> ORDER BY m.Module_Position, l.Lesson_Position, p.Page_Position
>
Dingdingding! The left join really did the trick and I now get what I
expect to get. So, I guess now that I got this settled I better learn
what a left join is in case someone asks me to explain my code. :)
Thanks to everyone who replied!
David
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