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Difference between clustered and nonclustered index [duplicate]
...mn(s). It is like a dictionary, where all words are sorted in alphabetical order in the entire book.
A non-clustered index, on the other hand, does not alter the way the rows are stored in the table. It creates a completely different object within the table that contains the column(s) selected for...
SQLAlchemy ORDER BY DESCENDING?
How can I use ORDER BY descending in a SQLAlchemy query like the following?
6 Answers
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What is the real overhead of try/catch in C#?
...be aware that a whole bunch of runtime/reflection related stuff happens in order to populate the members of the exception class such as the stack trace object and the various type members etc.
I believe that this is one of the reasons why the general advice if you are going to rethrow the exception...
MVVM in WPF - How to alert ViewModel of changes in Model… or should I?
... A good way to think about it - Say you want to make 2 versions of your
ordering system. The first is in WPF, and the second is a web
interface.
The shared logic that deals with the orders themselves (sending
emails, entering into DB, etc) is the Model. Your application is
exposing t...
ansible: lineinfile for several lines?
... If multiple line are missing, i would like the item to appears in an order. How can I be sure of the order in which items are appended?
– MUY Belgium
Feb 13 at 14:54
ad...
What is 'Context' on Android?
...ation class keeps tracks of a list of Activities that it’s monitoring in order to do its work. This list is used to coordinate all of the activities and make sure everything runs smoothly in managing the flow of activities.
There are some operations that I haven’t fully looked into which coordi...
TortoiseGit not showing icon overlays
...ill only allow up to 11 icon overlay identifiers, arranged in alphanumeric order - if there are more than 11, these icons will not be displayed.
You can run the following command in a DOS prompt:
regedit /e c:\icons.txt HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIco...
WAMP 403 Forbidden message on Windows 7
...amp/www/">
Options Indexes FollowSymLinks
AllowOverride all
Order Deny,Allow
Deny from all
Allow from 127.0.0.1
</Directory>
The same goes for your PHPMyAdmin access, the config file is phpmyadmin.conf :
<Directory "c:/wamp/apps/phpmyadmin3.4.5/">
Options In...
Apache VirtualHost 403 Forbidden
...
Require all granted
as in
<Directory "your directory here">
Order allow,deny
Allow from all
# New directive needed in Apache 2.4.3:
Require all granted
</Directory>
share
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Ordering by specific field value first
...e sorting for all possible values:
SELECT id, name, priority
FROM mytable
ORDER BY FIELD(name, "core", "board", "other")
If you only care that "core" is first and the other values don't matter:
SELECT id, name, priority
FROM mytable
ORDER BY FIELD(name, "core") DESC
If you want to sort by "cor...