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INNER JOIN vs LEFT JOIN performance in SQL Server
... JOIN to LEFT JOIN because the performance of LEFT JOIN is better, despite what I know. After I changed it, the speed of query got significantly improved.
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Browse and display files in a git repo without cloning
... can see the current HEADs and tags for example).
The only real way to do what you want (if I understand correctly) would be to use ssh to run a remote command and return the results, for example:
ssh me@otherhost "cd repo && git log -n 10"
What you want would be lovely functionality if ...
Disable a group of tests in rspec?
...
See what you think of this:
describe "something sweet", pending: "Refactor the wazjub for easier frobbing" do
it "does something well"
it "rejects invalid input"
end
I like to see reasons with my pending items when I'm dis...
Array versus linked-list
...en it needs to grow.
Shuffling a linked list is just a matter of changing what points to what. Shuffling an array is more complicated and/or takes more memory.
As long as your iterations all happen in a "foreach" context, you don't lose any performance in iteration.
...
Why doesn't JUnit provide assertNotEquals methods?
...y describe all kinds of negations and automatically build a description of what you expected and what you got if the assertion fails:
assertThat(objectUnderTest, is(not(someOtherObject)));
assertThat(objectUnderTest, not(someOtherObject));
assertThat(objectUnderTest, not(equalTo(someOtherObject)));...
What are valid values for the id attribute in HTML?
When creating the id attributes for HTML elements, what rules are there for the value?
23 Answers
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What is JNDI? What is its basic use? When is it used?
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What is JNDI ?
It stands for Java Naming and Directory Interface.
What is its basic use?
JNDI allows distributed applications to look up services in an abstract, resource-independent way.
When it is used?
The m...
Vagrant error: NFS is reporting that your exports file is invalid
...le. Please correct
the issues below and execute "vagrant reload":
Here's what I did on my host machine:
sudo rm /etc/exports
sudo touch /etc/exports
vagrant halt
vagrant up --provision
share
|
...
Why are C# 4 optional parameters defined on interface not enforced on implementing class?
...t makes the method have an optional parameter?
That's not going to fly. What if two people call up the author of B, and one of them wants the default to be true and one of them wants it to be false? What if the author of B simply refuses to play along?
Perhaps in that case they would be required...
VIM + JSLint?
...can follow the intructions from JSLint web-service + VIM integration or do what I did:
Download http://jslint.webvm.net/mylintrun.js and http://www.jslint.com/fulljslint.js
and put them in a directory of your choice.
Then add the following line to the beginning of mylintrun.js:
var filename= arg...