On Tue, Jul 31, 2012 at 7:02 PM, Haluk Karamete <halukkaramete@stripped> wrote:
> I've got a text field called source_recid. It stores half string half
> number like strings in it.
> 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
> 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