Database Administrators Meta
to customize your list.
more stack exchange communities
Start here for a quick overview of the site
Detailed answers to any questions you might have
Discuss the workings and policies of this site
Why does ANSI SQL define SUM(no rows) as NULL?
The ANSI SQL standard defines (chapter 6.5, set function specification) the following behaviour for aggregate functions on empty result sets: COUNT(...) = 0 AVG(...) = NULL MIN(...) = NULL MAX(...) = ...
Oct 4 '12 at 16:49
newest relational-theory null questions feed
Hot Network Questions
Delete all Files from Folder and Sub Folders
Saturday morning TV show from the 1970's or 1980's with a silver RV driven around a desert
How can I achieve Gigabit LAN speed without wires?
Does a password strength indicator increase password strength?
Explain travel times and distances on flight
"It was turning out the dining-room done it."
What is the definition of "hitting" when a move misses but still deals damage
Draw a regular polygon
Blender vector render engine that can render points, lines, and surfaces (geometries with no volume)?
changing a tire on a slope
Is being blunt in emails common in the workplace?
Applying for a faculty position without intent to accept position
Is it ethical for advisors to automatically coauthor papers?
Student insists I am wrong
Why doesn't the wizarding world use computers?
Finish lazy parentheses
Can C++ code be valid in both C++03 and C++11 but do different things?
Why did early telephones use a rotary dial instead of 10 individual buttons?
Is f/number more relevant than aperture and/or shutter speed?
What were the historical reasons why the Book of Enoch was excluded from most Christian canons?
Why are the controls opposite/inverted when flying in a game?
Are there contradictions in math?
How does clear command work?
Is it wrong to impose a challenging time constraint on exams?
more hot questions
Life / Arts
Culture / Recreation
TeX - LaTeX
Unix & Linux
Ask Different (Apple)
Geographic Information Systems
Science Fiction & Fantasy
Seasoned Advice (cooking)
Personal Finance & Money
English Language & Usage
Mi Yodeya (Judaism)
Cross Validated (stats)
Theoretical Computer Science
Meta Stack Overflow
Stack Overflow Careers
site design / logo © 2014 stack exchange inc; user contributions licensed under
cc by-sa 3.0