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How do I use the CONCAT function in SQL Server 2008 R2?
... including 2008 R2.
That it is part of SQL Server 2012 can be seen in the document tree:
SQL Server 2012
Product Documentation
Books Online for SQL Server 2012
Database Engine
Transact-SQL Reference (Database Engine)
Built-in Functions (Transact-SQL)
String Functions (Trans...
How do I convert a numpy array to (and display) an image?
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img.show() don't work in ipython notebook.img_pil = Image.fromarray(img, 'RGB') display(img_pil.resize((256,256), PIL.Image.LANCZOS))
– mrgloom
Jun 11 '19 at 10:15
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Android ACTION_IMAGE_CAPTURE Intent
...til you try to hit the "Ok" button in the camera app. The "Ok" button just does nothing. The camera app stays open and nothing locks up. We can cancel out of it, but the file never gets written. What exactly do we have to do to get ACTION_IMAGE_CAPTURE to write the picture taken to a file?
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How can I implement an Access Control List in my Web MVC application?
...bjects)
In this case the main difference you should recognize is that you Domain Objects (in example: Profile) itself contains details about owner. This means, that for you to check, if (and at which level) user has access to it, it will require you to change this line:
$this->acl->isAllowed...
What are the differences between type() and isinstance()?
... is an instance of a base class, too), while checking for equality of type does not (it demands identity of types and rejects instances of subtypes, AKA subclasses).
Normally, in Python, you want your code to support inheritance, of course (since inheritance is so handy, it would be bad to stop cod...
How to set default values in Rails?
...orrect" is a dangerous word in Ruby. There's usually more than one way to do anything. If you know you'll always want that default value for that column on that table, setting them in a DB migration file is the easiest way:
class SetDefault < ActiveRecord::Migration
def self.up
change_co...
How do I horizontally center an absolute positioned element inside a 100% width div? [duplicate]
... I need it to be horizontally centered within #header . Normally, I would do a margin:0 auto for relatively positioned elements but I am stuck here. Can someone show me the way?
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How do I ZIP a file in C#, using no 3rd-party APIs?
... a file list because it wants a MIME type for each file you add. It might do what you want.
I'm currently using these classes for a similar problem to archive several related files into a single file for download. We use a file extension to associate the download file with our desktop app. One s...
How can I convert a string to a number in Perl?
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You don't need to convert it at all:
% perl -e 'print "5.45" + 0.1;'
5.55
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How do I force detach Screen from another SSH session?
..., that Screen session still thinks it's attached. Maybe it is. Perhaps I don't really know what that means.
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