Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change
 
PerlMonks  

Re: MySQL question

by shadox (Priest)
on Mar 28, 2002 at 21:51 UTC ( #155126=note: print w/ replies, xml ) Need Help??


in reply to MySQL question

If i understand you well ( i am half asleep ), what you want is a list of titles with the greatest version.
Something like this
+-------+---------+---------+ | title | doc_num | version | +-------+---------+---------+ | bar | 1234 | 9 | | foo | 1234 | 7 | | other | 2121 | 7 | +-------+---------+---------+
Well if it is right, all what you need is to change your ORDER BY, for a GROUP by.
SELECT title, doc_num, MAX(version) AS version from test GROUP BY titl +e; # For this example "test" is the table name


Failure is not an option - it is a privilege reserved for
those who do not try hard enough.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://155126]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others studying the Monastery: (9)
As of 2016-08-24 20:25 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    The best thing I ever won in a lottery was:















    Results (349 votes). Check out past polls.