What I'm attempting to do is LEFT OUTER JOIN a table, but I only want the last inserted record of the joined table to affect the results. Currently each table row within the joined table seems to be affecting the results of my query.
My current LEFT OUTER JOIN is similar to:
LEFT OUTER JOIN tablethree AS t3 ON t3.sid = t2.sid
Inside of tablethree I have two different results. Both of them are appearing to affect my results, but what I would like is for the most recently entered result to affect my end results.
My full query looks similar to (only using * here to save time):
FROM tableone AS t1
INNER JOIN tabletwo AS t2
ON t1.cid = t2.id
LEFT OUTER JOIN tablethree AS t3
ON t3.sid = t2.sid
WHERE t1.fieldone = 1
&& t1.odate NOT BETWEEN t3.startdate AND t3.enddate
The tablethree start date and end date that I want reflect 03-01-2014 and 03-31-2014, but the second result in that table is 04-01-2014 and 04-30-2014 and this appears to be affecting the results of the query.
My Question is: How can I change the LEFT OUTER JOIN to only use the most recently entered result and not each result found to affect my final outcome of results?