Home/ Questions/Q 4105186
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-20T21:12:50+00:00

I have: select title, order#, STATE from customers C, ORDERITEMS O, books b where

  • 0

I have:

select title, order#, STATE
from customers C, ORDERITEMS O, books b
where b.ISBN=O.ISBN (+)
order by title

But I’m trying to understand why rows that don’t have order# have state

BODYBUILD IN 10 MINUTES A DAY   1003    CA
BODYBUILD IN 10 MINUTES A DAY   1003    WY
BODYBUILD IN 10 MINUTES A DAY   1003    TX
BODYBUILD IN 10 MINUTES A DAY   1003    NY
BODYBUILD IN 10 MINUTES A DAY   1003    WA
BODYBUILD IN 10 MINUTES A DAY   1003    ID
BODYBUILD IN 10 MINUTES A DAY   1003    FL
BUILDING A CAR WITH TOOTHPICKS  -   FL
BUILDING A CAR WITH TOOTHPICKS  -   NJ
BUILDING A CAR WITH TOOTHPICKS  -   GA
BUILDING A CAR WITH TOOTHPICKS  -   MI
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    You are using 3 tables, but only one join. That will get you too many results. You will need two joins: probably somehow table Customers needs to be joined with OrderItems too.

    Something like:

    and o.customerId = c.id

    Hence:

    select b.title, o.order#, c.state
from customers c, orderitems o, books b
where o.customerId = c.id
and b.isbn = o.isbn (+)
order by title
    • 0