TAILIEUCHUNG - The Real MTCS SQL Server 2008 Exam 70/432 Prep Kit- P67

The Real MTCS SQL Server 2008 Exam 70/432 Prep Kit- P67: Congratulations on your journey to become certified in SQL Server 2008. This book will help prepare you for your exam and give you a practical view of working with SQL Server 2008. | This page intentionally left blank Chapter 8 MCTS SQL Server 2008 Exam 432 ETL Techniques Exam objectives in this chapter Bulk Copying Data Distributed Queries SQL Server Integration Services Alternative ETL Solutions Exam objectives review 0 Summary of Exam Objectives 0 Exam Objectives Fast Track 0 Exam Objectives Frequently Asked Questions 0 Self Test 0 Self Test Quick Answer Key 313 314 Chapter 8 ETL Techniques Introduction The ETL extract transform loading process is generally done using SQL Server Integration Services SSIS . Other methods for ETL in SQL Server are available such as BCP Select Into and insert select. You can also write custom code using or other languages. This chapter covers all of the aspects and methods for performing ETL with SQL server from BCP to SQL Server integration Services. Distributed queries and transactions are also covered in this chapter as well as setting up and using a linked server for cross-server communications and or queries. Setting up systems to work correctly with distributed queries can be difficult and this chapter will help to demystify the process. Understanding ETL Organizations often have more than just one database. Organizations also often need to share data between those databases in-house as well as to exchange data with business partners. Therefore organizations need tools to move data between databases across platforms and often even between different businesses. As the data moves from one database to another there is also often a need to perform some manipulation or transformation on the data. The process of extracting data from a data source transforming the data to meet your needs and loading the data into a destination is known more generally as extract transform and load or more simply ETL. SQL Server provides a wide array of tools to move data. Exactly what data these tools move and how they do it varies significantly. The data could be an entire database such as the Copy Database Wizard a .

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