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Using psql how do I list extensions installed in a database?
...
FROM pg_catalog.pg_extension e
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = e.extnamespace
LEFT JOIN pg_catalog.pg_description c ON c.objoid = e.oid AND c.classoid = 'pg_catalog.pg_extension'::pg_catalog.regclass
ORDER BY 1;
Thanks to https://blog.dbi-services.com/listing-the-extensions-avai...
Default visibility of class methods in PHP
...perties which is not declared in the class and you assign a value to it inside a method will have a public visibility.
<?php
class Example {
public $name;
public function __construct() {
$this -> age = 9; // age is now public
$this -> privateFunction();
}
p...
Java Round up Any Number
...tln((int) Math.ceil(a / 100.0));
Outputs:
1
1.0
1.42
2.0
2
See http://ideone.com/yhT0l
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Can a pointer to base point to an array of derived objects?
...
As Martinho Fernandes said, the indexing is wrong. If you wanted instead to store an array of Shapes, you would have to do so using an array of Shape *'s, like so:
int main()
{
Shape ** shapes = new Shape*[10];
for (int i = 0; i < 10; ++i)...
How to customise file type to syntax associations in Sublime Text?
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do you have any idea how this is reflected in the sublime text config files? I'm trying to achieve this with an automated chef recipe and I can't figure out what to set in the settings JSON.
– brad
Nov ...
Set cookie and get cookie with JavaScript [duplicate]
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The eraseCookie function didn't work for me (FireFox Developer Edition 66.0b4). Instead, I had to use the code from B T's answer: document.cookie = name + '=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/'.
– ban-geoengineering
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Android Studio - Where can I see callstack while debugging an android app?
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Thanks Nickolai, I didn't find "Threads" because I had closed it. I clicked on the icon on the right of the Tabs and I reopened it.
– ARLabs
Feb 9 '15 at 14:15
...
Get current value of a setting in Vim
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
LINQ Orderby Descending Query
...ment should work. Is t.Delivery.SubmissionDate actually populated with valid dates?
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Ruby on Rails patterns - decorator vs presenter
...e functionality to this entity". A presenter is more of a "let's build a bridge between the model/backend and view". The presenter pattern has several interpretations.
Decorators are generic/general purpose. Presenters have a narrower range of responsibilities/uses. Decorators are used across domai...