On Tue, Jul 31, 2012 at 7:02 PM, Haluk Karamete <halukkaram...@gmail.com> wrote: > I've got a text field called source_recid. It stores half string half > number like strings in it. > > Example > > shop.orders.32442 > > the syntax is DATABASENAME.TABLENAME.RECID > > My goal is to scan this col and find out the biggest RECID ( the > integer) in it. > > So, in a case like this > > shop.orders.32442 > shop.orders.82000 > shop.orders.34442 > > It would be the record whose source_recid is shop.orders.82000. Why? Cause > 82000 happens to be the largest integer. > > What SQL statement would get me that record? > > One option to this is to create a new column ( the_ids ) and move all the > integers in it and then run something like this > > select source_recid from mytable where source_recid like 'shop.orders.%' > order by the_ids DESC LIMIT 1 > > Is there a way to pull this off without going thru this step?
Would substring work? SELECT SUBSTRING(recid, 13, <column size>) AS numbers FROM table ORDER BY numbers DESC -- Paul Halliday http://www.pintumbler.org/ -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql
