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How to select out latest generations of routes
Message
De
19/12/2005 12:46:02
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 7 SP1
OS:
Windows XP SP2
Database:
Visual FoxPro
Divers
Thread ID:
01079188
Message ID:
01079240
Vues:
16
Sergey/Cetin

The following MB SQL does manage to get the data I want, in the correct order. Problem is it still gets all gen's for those routes that have more than one. I just can't figure out how to get rid of the "older" gens.
Select Rte_No, MAX( ASC( Rte_Let)) "maxGen", Directn, Stop, SeqNo, Time, RunOrder
  from RZStop
  where Zone = 1 
  into csrZonesServices NoSelect
  group by rte_no, maxGen, stop
  order by Rte_No, Stop, maxGen, Directn, SeqNo 
I have to ASC() the gen in order to MAX() itr as MAX() only works on numerical fields in MB.

Terry
- Whoever said that women are the weaker sex never tried to wrest the bedclothes off one in the middle of the night
- Worry is the interest you pay, in advance, for a loan that you may never need to take out.
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