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Updating MySQL primary key
...e, user_interactions u write, user_interactions write;
insert into fixit
select user_2, user_1, type, max(timestamp), count(*) n from user_interactions u
group by user_2, user_1, type
having n > 1;
delete u from user_interactions u, fixit
where fixit.user_2 = u.user_2
and fixit.user_1 = u...
postgresql port confusion 5433 or 5432?
...instances running so make sure you're connecting to the right one by using select version() and SHOW data_directory;.
You can also specify a unix socket directory; check the unix_socket_directories setting of the PostgreSQL instance you wish to connect to and specify that with psql -h, e.g.psql -h...
Is gettimeofday() guaranteed to be of microsecond resolution?
..., detect other alternatives like HPET and ACPI PM timer, and automatically select the best one. It's a good idea to always use the kernel for timing unless you are really sure the TSC is stable and monotonic.
– CesarB
Jul 7 '09 at 23:03
...
How to change the commit author for one specific commit?
...b:
git push --force --tags origin 'refs/heads/*'
OR if you like to push selected references of the branches then use
git push --force --tags origin 'refs/heads/develop'
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How to make a phone call in android and come back to my activity when the call is done?
...View.setOnItemClickListener(new OnItemClickListener() { //Act on item when selected
@Override
public void onItemClick(AdapterView<?> a, View v, int position, long id) {
myListView.moveToPosition(position);
String _bPartyNumber = "tel...
Mercurial: how to amend the last commit?
...I (I'm using v2.5):
Swich to the 'Commit' view or, in the workbench view, select the 'working directory' entry.
The 'Commit' button has an option named 'Amend current revision' (click the button's drop-down arrow to find it).
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Caveat emptor:
This ex...
How to prevent SIGPIPEs (or handle them properly)
...? Is there a way to check if the other side of the line is still reading? (select() doesn't seem to work here as it always says the socket is writable). Or should I just catch the SIGPIPE with a handler and ignore it?
...
Express res.sendfile throwing forbidden error
.... good catch. I didn't notice this small difference. I also wonder if the selected answer works not because it uses .sendfile but because it relies on something else completely (path). Thanks for pointing this out.
– tenor528
Feb 10 '16 at 15:53
...
How do disable paging by swiping with finger in ViewPager but still be able to swipe programmaticall
...Enabled(boolean enabled) {
this.enabled = enabled;
}
}
Then select this instead of the built-in viewpager in XML
<mypackage.CustomViewPager
android:id="@+id/myViewPager"
android:layout_height="match_parent"
android:layout_width="match_parent" />
You just need t...
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' — Miss
...ate to where your mysql.sock file is located
Right click on the file and select Make Link
Rename the Link File to mysqld.sock then Right click on the file and Cut it
Go to /var/run and create a folder called mysqld and enter it
Now right click and Paste the Link File
Voila! You will now have a mys...