Question

I have a SQLite query like this:

SELECT Books.title, People.name FROM Books, People WHERE People.ID=Books.AuthorID

Where Books.AuthorID is an ID number corresponding to an ID in the People table.

Output:

Title   Author
Book1   John Doe
Book2   Martha James

But I want to add in a 3rd field (Books.EditorID) that also is an ID which has to be looked up in People, but chances are it’ll be a different ID/Person than Books.AuthorID is.

Desired output:

Title   Author        Editor
Book1   John Doe      Jack Brown
Book2   Martha James  Bob Nelson

How can this be accomplished? I believe some sort of JOIN query?

Answer 1

SELECT b.title, a.name as author_name, e.name as editor_name
FROM Books b
INNER JOIN People a ON a.ID=b.AuthorID
INNER JOIN People e on e.ID=b.EditorID