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How to speed up insertion performance in PostgreSQL
...storage, stop now. Back your data up, restructure your RAID array to RAID 10, and try again. RAID 5/6 are hopeless for bulk write performance - though a good RAID controller with a big cache can help.
If you have the option of using a hardware RAID controller with a big battery-backed write-back cac...
Centering a div block without the width
...
Update 27 Feb 2015: My original answer keeps getting voted up, but now I normally use @bobince's approach instead.
.child { /* This is the item to center... */
display: inline-block;
}
.parent { /* ...and this is its parent container. */...
How to get the groups of a user in Active Directory? (c#, asp.net)
... anymore, unfortunately - you'll need to download the CHM for the January 2008 MSDN magazine from Microsoft and read the article in there.
Basically, you need to have a "principal context" (typically your domain), a user principal, and then you get its groups very easily:
public List<GroupPrinc...
How do I handle the window close event in Tkinter?
...|
edited May 3 '15 at 21:20
nbro
10.9k1717 gold badges7676 silver badges140140 bronze badges
answered Se...
href overrides ng-click in Angular.js
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edited Feb 18 '13 at 16:05
answered Feb 18 '13 at 15:18
G...
MySQL JOIN the most recent row only?
... CONCAT(title, ' ', forename, ' ', surname) LIKE '%Smith%'
LIMIT 10, 20;
Note that a JOIN is just a synonym for INNER JOIN.
Test case:
CREATE TABLE customer (customer_id int);
CREATE TABLE customer_data (
id int,
customer_id int,
title varchar(10),
forename varchar(10),
...
How to delete or add column in SQLITE?
...
360
ALTER TABLE SQLite
SQLite supports a limited subset of ALTER TABLE. The ALTER TABLE command ...
How to upload files to server using JSP/Servlet?
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1202
+200
Introdu...
Does Dart support enumerations?
...d approach before 1.8:
class Fruit {
static const APPLE = const Fruit._(0);
static const BANANA = const Fruit._(1);
static get values => [APPLE, BANANA];
final int value;
const Fruit._(this.value);
}
Those static constants within the class are compile time constants, and this clas...
How do I access properties of a javascript object if I don't know the names?
...;
}
This example loops through values, so it would log Property Name and 0. N.B.: The for each syntax is mostly only supported in Firefox, but not in other browsers.
If your target browsers support ES5, or your site includes es5-shim.js (recommended), you can also use Object.keys:
var data = { N...