An outer join is used to match rows from two tables. Even if there is no match rows are included. Rows from one of the tables are always included, for the other, when there are no matches, NULL values are included.

The idea behind cloud computing, as pioneer Amazon Web Services believed when it launched its first utility compute and storage products eight years ago, is to abstract away the underlying hardware and provide raw resources to programmers for applications to run on.

A digital signature is a mathematical scheme that demonstrates the authenticity of a message or document. A valid digital signature gives the recipient reason to believe that the message was created by a known sender, such that the sender cannot deny having sent the message (authentication and non-repudiation) and that the message was not altered in transit (integrity).

How .NET treats loops involving array and collection access and what kinds of optimizations you can expect.

How to use PowerShell to carry out REST operations such as GET/POST.

It’s a mistake to feel complacent about the state of the art of computing, no matter when you live. There’s always another bottleneck.

If we need to provide fast-responding websites, we have to optimize focus on client side and how to efficiently deliver content to end user.

Localization is more than just the translation of the strings in your application in other languages. It also involves displaying data, such as dates and times, in the right format for your users.

Think of all the browsers, all the devices and all of these web pages you’ve got to test, not to mention the iterations and bug fixes. You need a front-end testing plan.

By paying attention to these signs and heeding their warnings, you can avoid disaster and sustain the kind of leadership that . is healthy and fulfilling for both yourself and your followers.

In light of a growing number of cyber security and data privacy concerns, replacing HTTP with its secure alternative, HTTPS, is becoming increasingly important.