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How to delete duplicates on a MySQL table?
... the following columns:
employee (first_name, last_name, start_date)
In order to delete the rows with a duplicate first_name column:
delete
from employee using employee,
employee e1
where employee.id > e1.id
and employee.first_name = e1.first_name
...
How do I change the root directory of an apache server? [closed]
...tions Indexes FollowSymLinks MultiViews
AllowOverride None
Order allow,deny
allow from all
</Directory>
After this if you type localhost in browser it will load */home/username/new_root_folder* content.
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Android Studio: Plugin with id 'android-library' not found
...ready mentioned by some of the other answers, you need the gradle tools in order to use it. Using 3.0.1, you have to use the google repo, not mavenCentral or jcenter:
buildscript {
repositories {
...
//In IntelliJ or older versions of Android Studio
//maven {
// ...
Comparator.reversed() does not compile using lambda
...
This is a weakness in the compiler's type inferencing mechanism. In order to infer the type of u in the lambda, the target type for the lambda needs to be established. This is accomplished as follows. userList.sort() is expecting an argument of type Comparator<User>. In the first line, ...
How to print Unicode character in Python?
...gt;print (str)
結婚
your console interpreter should support unicode in order to show unicode characters.
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Calculate the number of business days between two dates?
...wo dates and he wants to find the number of business days between them. In order to use this solution you'd have to provide another function that produced a list of every date between the twyp.
– Adam Robinson
Oct 24 '09 at 18:18
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How to keep a git branch in sync with master
...the right way to do it, but I'd advise to merge with the --no-ff option in order to keep your commit history clear.
git checkout develop
git pull --rebase
git checkout NewFeatureBranch
git merge --no-ff master
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How to make child process die after parent exits?
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The argument order of the dup2() call is wrong. If you want to use pipes[0] as stdin you have to write dup2(pipes[0], 0) instead of dup2(0, pipes[0]). It isdup2(oldfd, newfd) where the call closes a previously open newfd.
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Android Endless List
... to 0, for instance, the user has to scroll to the very end of the list in order to load more items.
(optional) As you can see, the "load-more check" is only called when the user stops scrolling. To improve usability, you may inflate and add a loading indicator to the end of the list via listView.ad...
Markdown and including multiple files
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I use a includes.txt file with all my files in the right order
the I execute pandoc like this:
pandoc -s $(cat includes.txt) --quiet -f markdown -t html5 --css pandoc.css -o index.html
Works like a charm!
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