Question

I have two tables. I want to draw a sample of the first table except where the person in the first table is also in a second table. Am having trouble doing this seemingly simple query.

table users

id|name

table catuser

id|userid|catid

I have tried

SELECT u.*,c.userid FROM `users` u
LEFT JOIN `catuser` c
ON (u.id = c.userid AND c.userid <> '197')
WHERE u.id = '1'

and variations to no avail. Would appreciate any suggestions.

Answer 1

How abt. this:

SELECT u.*,c.userid 
FROM `users` u
LEFT JOIN `catuser` c
ON u.id = c.userid 
WHERE u.id = '1'
AND c.userid <> '197'
AND c.userid is null