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COUNT DISTINCT with CONDITIONS
I want to count the number of distinct items in a column subject to a certain condition, for example if the table is like this:
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What exactly does the Access-Control-Allow-Credentials header do?
I'm trying to understand how to use CORS and am confused about what the Access-Control-Allow-Credentials header does.
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When applying a patch is there any way to resolve conflicts?
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To generate your patch do the following:
git format-patch --stdout first_commit^..last_commit > changes.patch
Now when you are ready to apply the patches:
git am -3 < changes.patch
the -3 will do a three-way merge if there are ...
Mysql adding user for remote access
I created user user@'%' with password 'password . But I can not connect with:
3 Answers
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Differences between git pull origin master & git pull origin/master
What is the difference between git pull origin master and git pull origin/master ?
3 Answers
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What is the easiest way to push an element to the beginning of the array?
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What about using the unshift method?
ary.unshift(obj, ...) → ary
Prepends objects to the front of self, moving other elements upwards.
And in use:
irb>> a = [ 0, 1, 2]
=> [0, 1, 2]
irb>> a.unshift('x')
=>...
Using :after to clear floating elements
...have a list and the li's have a float:left; . The contents after the <ul> should be aligned correctly. Therefore i can build the following:
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Disable file preview in VS2012
In VS2012 when you select a file in solution explorer it automatically opens file in a special "preview" tab.
5 Answers
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How do I reword the very first git commit message?
... of pointing to a specific commit)
This way, the first commit is also included and you can just reword it like any other commit.
The --root option was introduced in Git v1.7.12 (2012). Before then the only option was to use filter-branch or --amend, which is typically harder to do.
Note: see also...
How to align texts inside of an input?
For all default inputs, the text you fill starts on the left. How do you make it start on the right?
7 Answers
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