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SQL Server: Difference between PARTITION BY and GROUP BY
...A group by normally reduces the number of rows returned by rolling them up and calculating averages or sums for each row. partition by does not affect the number of rows returned, but it changes how a window function's result is calculated.
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How can I use a file in a command and redirect output to the same file without truncating it?
...ly I want to take as input text from a file, remove a line from that file, and send the output back to the same file. Something along these lines if that makes it any clearer.
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Fast way of finding lines in one file that are not in another?
...ile1 file2
The input files should be sorted for this to work. With bash (and zsh) you can sort in-place with process substitution <( ):
diff --new-line-format="" --unchanged-line-format="" <(sort file1) <(sort file2)
In the above new and unchanged lines are suppressed, so only changed...
How do I create my own URL protocol? (e.g. so://…) [closed]
...ocol-name Protocol"
URL Protocol ""
shell/
open/
command/
(Default) PathToExecutable
Sources: https://www.iana.org/assignments/uri-schemes/uri-schemes.xhtml,
http://msdn.microsoft.com/en-us/library/aa767914(v=vs.85).aspx
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How to print VARCHAR(MAX) using Print Statement?
...u look at my code I am also using the @Pos variable to find the line break and print accordingly. So How could I use that in your code.
– peter
Oct 21 '11 at 14:11
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Difference between Control Template and DataTemplate in WPF
What is difference between a ControlTemplate and a DataTemplate in WPF?
7 Answers
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git: How do I get the latest version of my code?
...racked or generated files or subrepositories which just happen to be here) and just want a copy from the repo:
git reset --hard HEAD
git clean -xffd
git pull
Again, this will nuke any changes you've made locally so use carefully. Think about rm -Rf when doing this.
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How do I create a unique constraint that also allows nulls?
...er below.
Prior to SQL Server 2008
You cannot create a UNIQUE constraint and allow NULLs. You need set a default value of NEWID().
Update the existing values to NEWID() where NULL before creating the UNIQUE constraint.
s...
Start two instances of IntelliJ IDE
...nstances of IntelliJ (community edition).
When I have one instance started and I try to start another one, all that happens is that my started instance gets focus.
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How to get Ruby / Homebrew / RVM to work on Yosemite?
...requires Leopard or higher - I followed the answer below install xcode command line tools and it now works: stackoverflow.com/a/24225960/1062936
– greg
Feb 4 '15 at 23:59
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