This week's giveaway is in the JDBC forum.
We're giving away four copies of Java Database Connections & Transactions (e-book only) and have Marco Behler on-line!
See this thread for details.
Win a copy of Java Database Connections & Transactions (e-book only) this week in the JDBC forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Devaka Cooray
  • Knute Snortum
  • Paul Clapham
  • Tim Cooke
Sheriffs:
  • Liutauras Vilda
  • Jeanne Boyarsky
  • Bear Bibeault
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Ron McLeod
  • Piet Souris
  • Frits Walraven
Bartenders:
  • Ganesh Patekar
  • Tim Holloway
  • salvin francis

Double filtering.  RSS feed

 
Ranch Hand
Posts: 634
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

I tried to filter the normal customer 1st, then the customer created in this month
The first subquery returns no sets.
I seem to be having trouble when the order details table has got nothing in it

update:

By further breakdown of the problem, how can this return something
when order details has nothing inside, thus a 0 NetSales

update2:
I solved it by adding another union, making the no sales customer in the normal's set
, while having the VIP unchanged


Thanks
Jack
 
Without subsidies, chem-ag food costs four times more than organic. Or this tiny ad:
how do I do my own kindle-like thing - without amazon
https://coderanch.com/t/711421/engineering/kindle-amazon
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!