Mixing explicit and implicit joins fails with “There is an entry for table … but it cannot be referenced from this part of the query”

Question

SELECT
      i.*, 
      r.name AS roomname, 
      c.name AS cat, 
      p.key AS imgkey, 
      p.extension AS imgext
   FROM 
      items i, 
      rooms r, 
             


        

Answer 1

Since your Items.Room = the Rooms.Key, I would just have that as the where..

SELECT
      i.*, 
      r.name AS roomname, 
      c.name AS cat, 
      p.key AS imgkey, 
      p.extension AS imgext
   FROM 
      items i
         LEFT JOIN photos p 
            ON p.referencekey = i.key 
         JOIN rooms r
            on i.room = r.key
         JOIN categories c 
            on i.categorykey = c.key
   WHERE 
          i.sitekey = 32201 
      AND i.room = 663308