Why can't I SELECT a parent field that doesn't have a child?

Posted by myaccount on Stack Overflow See other posts from Stack Overflow or by myaccount
Published on 2010-04-28T10:39:14Z Indexed on 2010/04/28 10:43 UTC
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Filed under:

select

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parent

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child

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foreign

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keys

(rest_branches) is the table of restaurants.

(phone_numbers) is another table which contains the restaurants phone_numbers, and it has a field called (branch_id) which references the restaurant id.

When I try:

SELECT * 
FROM rest_branches
NATURAL JOIN phone_numbers

I only get the restaurants which have a phone_number. What should I do to get all restaurants even if they don't have a phone number?

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