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What are the best practices for SQLite on Android?
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Inserts, updates, deletes and reads are generally OK from multiple threads, but Brad's answer is not correct. You have to be careful with how you create your connections and use them. There are situations where your update calls will fail, even if your database doesn't get ...
PostgreSQL: Difference between text and varchar (character varying)
... difference, under the hood it's all varlena (variable length array).
Check this article from Depesz: http://www.depesz.com/index.php/2010/03/02/charx-vs-varcharx-vs-varchar-vs-text/
A couple of highlights:
To sum it all up:
char(n) – takes too much space when dealing with values sho...
Why unsigned integer is not available in PostgreSQL?
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It is already answered why postgresql lacks unsigned types. However I would suggest to use domains for unsigned types.
http://www.postgresql.org/docs/9.4/static/sql-createdomain.html
CREATE DOMAIN name [ AS ] data_type
[ COLLATE collation ]
[ DEFAULT expres...
Ninject vs Unity for DI [closed]
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Last time I looked at either of them I found Ninject slightly better. But both have their drawbacks.
Ninject has a better fluent-configuration scheme. Unity seems to rely mostly on XML configuration. Ninject's main drawback is that it requ...
Ajax using https on an http page
...server
Access-Control-Allow-Origin: https://www.mysite.com
http://en.wikipedia.org/wiki/Cross-Origin_Resource_Sharing
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SQLite UPSERT / UPDATE OR INSERT
...do have the option to upgrade, you are strongly encouraged to do so as unlike my solution, the one posted here achieves the desired behavior in a single statement. Plus you get all the other features, improvements and bug fixes that usually come with a more recent release.
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A gentle tutorial to Emacs/Swank/Paredit for Clojure
I am moving to Emacs to work on Clojure /Lisp.
What is all the information I need to setup on Emacs to be able to do the following?
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A simple command line to download a remote maven2 artifact to the local repository?
...er of this library doesn't use maven to build their applications, but is likely somewhat familiar with maven and probably has it installed.
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Reading Xml with XmlReader in C#
...ast as I can and let additional classes manage the reading of each sub block.
7 Answers
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Make WPF window draggable, no matter what element is clicked
...his.DragMove();
}
This will allow users to drag the Window when they click/drag on any control, EXCEPT for controls which eat the MouseDown event (e.Handled = true)
You can use PreviewMouseDown instead of MouseDown, but the drag event eats the Click event, so your window stops responding to left-...