sonesay
Oct 11 2007, 10:18 PM
| | Hi all. I am trying to make a list out of 2 list.
The first list is a complete list of users id from users table (List A)
The Second list is of users id from another table (List 
I want to subtrack the user ids in List B from List A and make List C.
Thanks in advance for any help 
Update: I looked up a old sql book i had and found some query examples. I tried the EXCEPT statement in mysql but it dont work so used another example.
CODE SELECT userid, username
FROM users
WHERE userid NOT
IN (
SELECT ea_user_id
FROM events_attend
)
Good thing Mysql can do it I was dreading the idea of having to do this in php arrays.
|
Reply
Stenno
Oct 12 2007, 02:10 PM
Your code is fine, but you could also do it this way: CODE SELECT * FROM `users`, `events_attend` WHERE users.userid != events_attend.ea_user_id I guess this has the same output
Reply
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