A common thing a data analyst does in his day to day job is to run aggregations of data by generally summing and averaging columns using different filters. When tables start to grow to hundreds of millions or billions of rows, these operations become extremely expensive and the choice of a database engine is crucial. Indeed, the more queries an analyst can run during the day, the better he can be at understanding the data.
Salah satu cara untuk konek ke MS SQL Server dari lingkungan POSIX adalah melalui kombinasi unixODBC dan FreeTDS. Keduanya sebenarnya berjalan sendiri2.
Untuk MacOS X kita menggunakan Macports (package manager di OSX, semacam RPM/YUM/APT di Linux). Step-by-step instalasinya seperti ini
I have been writing some plugins for ArcGIS Desktop Explorer and thought that for my purposes, Leaflet could do this so much faster and so much lighter. I could write a webpage to load data from all my sources - Sharepoint, SQL Server, CSV - but I don't know how to make all the connections and all my SharePoint data is acquired through C# already so why not stick with it?
NoSQL databases are often compared by various non-functional criteria, such as scalability, performance, and consistency. This aspect of NoSQL is well-studied both in practice and theory because specific non-functional properties are often the main justification for NoSQL usage and fundamental results on distributed systems like the CAP theorem apply well to NoSQL systems. At the same time, NoSQL data modeling is not so well studied and lacks the systematic theory found in relational databases.
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The Django tutorial (https://docs.djangoproject.com/en/1.4/intro/tutorial01/) is very well written and so is the PyDev page about it (http://pydev.org/manual_adv_django.html). However I have to say I would have appreciated a tutorial showing how to replicate the Django tutorial in PyDev. As I could not find it I decided to write one myself.
Have You working with a library like jquery, extjs, dojo? Are Your tired to include those library multiple times in multiple project? I’m a lazy person, so that is not my choice. And the answer is use apache alias featured.
- Open your apache2 config, mine is
- Make sure this line is not commented
# Include all the user configurations: Include /etc/apache2/httpd.conf
- Mine is empty, so add this line
Alias /extjs/ "/var/www/jslib/extjs/" <Directory "/var/www/jslib/extjs/"> Options All AllowOverride None Order allow,deny Allow from all </Directory>
- And open http://localhost/extjs/
- Now You are a lazy person