Tony Bain & Louis Davidson 
SQL Server 2000 Stored Procedures Handbook [PDF ebook] 

Stored procedures are compiled T-SQL statements that reside on the database. They are the cornerstones of successful data manipulation, and data-handling operations of every complexity make use of them. This book is an in-depth guide to a key area of database development.This book tackles real-world problems faced by developers when working with stored procedures, showing you how to solve these problems, avoid the common pitfalls, and produce faster, more robust stored procedures. Put simply: if you want to write better stored procedures, then this is the book for you.