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Adding 'serial' to existing column in Postgres
I have a small table (~30 rows) in my Postgres 9.0 database with an integer ID field (the primary key) which currently contains unique sequential integers starting at 1, but which was not created using the 'serial' keyword.
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How to pass variable number of arguments to a PHP function
...o pass the function depends on the length of an array. Is there a way to call a PHP function with a variable number of arguments?
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How can I make my own event in C#?
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Here's an example of creating and using an event with C#
using System;
namespace Event_Example
{
//First we have to define a delegate that acts as a signature for the
//function that is ultimately called when the event is trig...
Postgresql - unable to drop database because of some auto connections to DB
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(and possibly other users/roles; see \l+ in psql)
You can then terminate all connections to this db except your own:
SELECT pid, pg_terminate_backend(pid)
FROM pg_stat_activity
WHERE datname = current_database() AND pid <> pg_backend_pid();
On older versions pid was called procpid so you'...
How can I tell jackson to ignore a property for which I don't have control over the source code?
... my entities has a GeometryCollection that throws an exception when you call "getBoundary" (the why of this is another book, for now let's say this is the way it works).
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HTTP POST using JSON in Java
... request
Create an HttpPost request with it and add the header application/x-www-form-urlencoded
Create a StringEntity that you will pass JSON to it
Execute the call
The code roughly looks like (you will still need to debug it and make it work):
// @Deprecated HttpClient httpClient = new DefaultHtt...
How to remove files from git staging area?
... which I think added too many files to the staging area. How can I delete all the files from the staging area?
14 Answers
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Setting background-image using jQuery CSS property
...rnatively to what the others are correctly suggesting, I find it easier usually to toggle CSS classes, instead of individual CSS settings (especially background image URLs). For example:
// in CSS
.bg1
{
background-image: url(/some/image/url/here.jpg);
}
.bg2
{
background-image: url(/anot...
Is it possible to have different Git configuration for different projects?
.gitconfig is usually stored in the user.home directory.
12 Answers
12
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How to monitor the memory usage of Node.js?
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@GoloRoden npm install memwatch-next works fine. Here is the repo: github.com/marcominetti/node-memwatch
– fre2ak
Jun 19 '15 at 16:11
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