[SOLVED] catching null values

[haku]

With this query:

 

SELECT n.title, n.nid, UNIX_TIMESTAMP(td.deadline) as deadline, td.item_status, td.priority 
FROM {node} as n 
JOIN {to_do} as td 
ON n.vid = td.vid 
JOIN {to_do_assigned_users} as tdau 
ON tdau.vid = n.vid 
WHERE (td.deadline < (CURRENT_DATE() + INTERVAL 7 DAY) OR td.priority = 3) 
AND n.type = 'to_do' AND tdau.uid = 1 AND n.status = 1 AND td.item_status != 2 
ORDER BY deadline 
LIMIT 5, 5

 

Can anyone see why the following query returns values in which td.deadline is NULL? It also doesn't seem to be returning values where td.priority is equal to 3.

 

The following snipped also returns values where td.deadline is NULL:

 

WHERE (td.deadline IS NOT NULL AND td.deadline < (CURRENT_DATE() + INTERVAL 7 DAY) or priority = 3)

 

As does this:

 

WHERE (td.deadline BETWEEN '0000-00-0 00:00:00' AND (CURRENT_DATE() + INTERVAL 7 DAY) or priority = 3)

 

None of them are giving me any luck.

[haku]

I figured it out. I'm an idiot. I forgot to add a break into a php switch statement, and my data was getting overwritten with the results of a query in the next case down.