Calculate the Days Between Orders

Introduction to PIVOT operator in SQL

Learn how to use the PIVOT operator in SQL in a step-by-step manner.

Efficient Solutions to Gaps and Islands Challenges

Window functions are useful for solving many SQL queries. In this article, Ed Pollack demonstrates how they can be used to analyse baseball winning streaks.

Calculate Moving Averages using T-SQL in SQL Server

Introduction In Financial Data, analyzing the Moving Average (MA) is a very common practice. The direction of the moving average conveys important information about prices, whether that average is simple or exponential. A rising moving average shows that prices are generally increasing. A falling moving average indicates that prices, on average, are falling. This article […]

Calculate the Days Between First and Last Orders

SQL Server Attach and Detach Database Examples

In this article Dinesh Asanka looks at how to detach and attach a SQL Server database using the SSMS GUI and using T-SQL commands.

Creating a Node Table

Switching Database context in transaction

Stable Marriages Using SQL Server

In this article, we see how SQL can be used to determine matches between two groups, given a set of preferences.

Choosing the Column