Concatenating Row Values in Transact-SQL

It is an interesting problem in Transact SQL, for which there are a number of solutions and considerable debate. How do you go about producing a summary result in which a distinguishing column from each row in each particular category is listed in a 'aggregate' column? A simple, and intuitive way of displaying data is surprisingly difficult to achieve. Anith Sen gives a summary of different ways, and offers words of caution over the one you choose.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns

An "old" subject is revisted where "newbies" can learn the methods and veteran users can get more performance out of the code.

FORMATMESSAGE

LIKE operator

Rowversion

VarChar(max)?!?

Uncommon Table Expressions

This article describes an alternate use of CTEs for functional data processing.

Partition Functions

Exponent Engima

Calculating Mathematical Values in SQL Server

In our application we have the need to perform mathematical calculations. Right now we are doing so in our front end application. Unfortunately we are starting to experience performance problems with large data sets and differences in calculations due to developers using different logic. We are seeking some other options to perform the calculations. Does SQL Server perform basic mathematical calculations?