Question

I have tried this multiple distinct from MySQL and I cant seem to get anything to work… I have a table that is a history table. The appartments can be found many times from the same building with different status. I need to find the newest one for each appartment (the one with the highest id ORDER BY id)

id   building appartment_id status
208  1        2             2  
209  1        3             2   
210  1        4             2   
211  1        5             2  
212  1        6             2  
213  1        7             2  
214  1        2             1  
215  1        2             3

But how do I do that?! :S
I have tried this:

SELECT *, GROUP_CONCAT(appartment_id, building) 
    FROM `ib30_history` 
    group by appartment_id, building 
    order by id DESC

It seems to work but im not sure that is the right way of doing it and the code that uses the output seems to make funny things running through the data so im not sure it really works!

Answer 1

Get rid of distinct and use something like:

GROUP BY building , appartment_id