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How to thoroughly purge and reinstall postgresql on ubuntu? [closed]
...st, I deleted config and database
$ sudo pg_dropcluster --stop 9.1 main
Then removed postgresql
$ sudo apt-get remove --purge postgresql postgresql-9.1
and then reinstalled
$ sudo apt-get install postgresql postgresql-9.1
In my case I noticed /etc/postgresql/9.1 was empty, and running serv...
Using Java 8 to convert a list of objects into a string obtained from the toString() method
...gs in Java 8. E.g., I can iterate with a stream over a list of objects and then sum the values from a specific field of the Object 's instances. E.g.
...
How do I list all remote branches in Git 1.7+?
...it ls-remote --heads <remote-name>
If git branch -r does not work, then maybe as Cascabel says "you've modified the default refspec, so that git fetch and git remote update don't fetch all the remote's branches".
[1] As of the writing of this footnote 2018-Feb, I looked at the comments an...
Difference between List, List, List, List, and List
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@if_zero_equals_one Yes, but you would then get a compiler warning (it would warn and say that you are using raw types), and you never want to compile your code with warnings.
– Kaj
Jun 3 '11 at 21:42
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What's the difference between belongs_to and has_one?
...ence is what side of the relationship you are on. If a User has a Profile, then in the User class you'd have has_one :profile and in the Profile class you'd have belongs_to :user. To determine who "has" the other object, look at where the foreign key is. We can say that a User "has" a Profile becaus...
mmap() vs. reading blocks
...e have been many improvements to IO and virtual memory in the kernel since then, but it nicely explains the reason why mmap or read might be faster or slower.
A call to mmap has more overhead than read (just like epoll has more overhead than poll, which has more overhead than read). Changing virt...
How do I restore a dump file from mysqldump?
...or, it's fairly easy to pick through, if there are any "using" statements, then its of multiple databases, if there are none, you'll have to add one at the top before you can run that command.
– Justin Bennett
Sep 19 '08 at 21:34
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Javascript - How to detect if document has loaded (IE 7/Firefox 3)
...ut the document may or may not have finished loading yet. If it did load, then I can just call the function. If it did NOT load, then I can attach an event listener. I can't add an eventlistener after onload has already fired since it won't get called. So how can I check if the document has loaded...
How can I run a directive after the dom has finished rendering?
...s great however if there's a post that builds new items with the directive then the window load will not fire after the initial load and therefore will not function correctly.
– Brian Scott
Jan 20 '15 at 9:59
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MsDeploy is returning 403 forbidden
...e server node in the "Connections" list,
Double click "Management Service" then you are taken to a screen which has an "Enable remote connections" check box.
This checkbox (and the rest of the sreen) maybe greyed out because the service is running. Just click the "Stop" link in the Actions pane, th...