Windowing Functions: Tell me when that changes

Windowing functions aren't just for analyzing numbers/dates. Using windows functions to analyze when a character field changes is a little know resource

LEADing Rows

LEAD parameters

Cursor-Killing: Accessing Data in the Next Row

Cursors are considered by many to be the bane of good T-SQL. What are the best ways to avoid iterative T-SQL and to write queries that look and perform beautifully? This first part in an ongoing series of cursor-killing handles inter-row analysis.

Reaping the benefits of the Window functions in T-SQL

Exploring the potential benefits of the T-SQL Window functions (OVER, LAG, and LEAD) in this piece. You can learn how to achieve up to 50% performance boost by replacing a single function call.

SQL Server Analysis Services-Lead, Lag, OpeningPeriod, ClosingPeriod Time Related Functions

Working with SSAS time related accounting functions can be tricky. SQL Server 2012 now offers Lag and Lead functions. Are these functions available in SSAS? What other related functions are available?

Lead - 2

LEAD - 1

Analytic Enhancements in SQL Server 2012 - Part II

The introduction of the new analytic functions in the RTM version of SQL Server 2012, such as LAG, LEAD, FIRST_VALUE and LAST_VALUE, with the improved over clause, greatly facilitate the analysis on ordered data sets, such as time-series data. Read on to learn more.

The new Analytic functions in SQL Server 2012

SQL Server expert Wayne Sheffield looks into the new T-SQL analytic functions coming in SQL Server 2012.