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SQL 2012 Developer, Part 03 of 13: Functions
with Don Kiely
In this course you’ll learn about the three kinds of UDFs available in SQL Server and will see several examples of functions and how to use them. We’ll start by looking at scalar functions that return a single value, then will explore the two types of table-valued functions. These latter functions let you return a table data type that acts like an in-memory table. Once you understand how to create functions, you’ll realize that now you have almost too many options for writing code: views, stored procedures, the different kinds of functions, and others. So we’ll discuss how to decide which kind of code module to use in different situations, as well as some potential performance issues with using functions.Course Outline