How to select latest change done in the given Table structure?

Posted by OM The Eternity on Stack Overflow See other posts from Stack Overflow or by OM The Eternity
Published on 2010-05-03T05:17:20Z Indexed on 2010/05/03 5:28 UTC
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mysql

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select

I have a Table structure as id, trackid, table_name, operation, oldvalue, newvalue, field, changedonetime

Now if I have 3 rows for the same "trackid" same "field", then how can i select the latest out of the three?

i.e. for e.g.:

id = 100 trackid = 152 table_name = jos_menu operation= UPDATE oldvalue = IPL newvalue = IPLcccc field = name live = 0 changedonetime = 2010-04-30 17:54:39

and

id = 101 trackid = 152 table_name = jos_menu operation= UPDATE oldvalue = IPLcccc newvalue = IPL2222 field = name live = 0 changedonetime = 2010-04-30 18:54:39

As u can see above the secind entry is the latest change, Now what query I shoud use to get the only one and Latest row out of many such rows...

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