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SQL Update with row_number()
I want to update my column CODE_DEST with an incremental number. I have:
8 Answers
8
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SQL - many-to-many table primary key
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With a simple two-column many-to-many mapping, I see no real advantage to having a surrogate key. Having a primary key on (col1,col2) is guaranteed unique (assuming your col1 and col2 values in the referenced tables are unique...
Create Django model or update if exists
...docs.djangoproject.com/en/dev/ref/models/querysets/#get-or-create
For you it could be :
id = 'some identifier'
person, created = Person.objects.get_or_create(identifier=id)
if created:
# means you have created a new person
else:
# person just refers to the existing one
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json_decode to array
...follow
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edited Apr 23 '14 at 17:29
Francisco Corrales Morales
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Rails 4 Authenticity Token
...king on a new Rails 4 app (on Ruby 2.0.0-p0) when I ran into some authenticity token problems.
13 Answers
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What is event bubbling and capturing?
...opagation mode determines in which order the elements receive the event.
With bubbling, the event is first captured and handled by the innermost element and then propagated to outer elements.
With capturing, the event is first captured by the outermost element and propagated to the inner elements....
Modifying a query string without reloading the page
...a photo gallery, and would like to be able to change the query string and title when the photos are browsed.
5 Answers
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How to get input type using jquery?
...ut type. So if the type is a radio, I need to get which is checked, and if it is a checkbox I need to now which are checked, and if it is a drop down I need to know which is selected, and I if it is a text/textarea I need to know the values.
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Collisions when generating UUIDs in JavaScript?
...uid has a test harness that you can use to test the distribution of hex digits in that code. If that looks okay then it's not Math.random(), so then try substituting the UUID implementation you're using into the uuid() method there and see if you still get good results.
[Update: Just saw Veselin's...
XDocument.ToString() drops XML Encoding Tag
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Either explicitly write out the declaration, or use a StringWriter and call Save():
using System;
using System.IO;
using System.Text;
using System.Xml.Linq;
class Test
{
static void Main()
{
string xml = @"&l...