Tải bản đầy đủ (.pdf) (10 trang)

Hands-On Microsoft SQL Server 2008 Integration Services part 1 ppt

Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (329.46 KB, 10 trang )

Microsoft
®
SQL Server
®
2008
Ashwani Nanda
New York Chicago San Francisco Lisbon
London Madrid Mexico City Milan
New Delhi San Juan Seoul Singapore
Sydney Toronto
Hands-On
IntegratIOn
servIces
Copyright © 2011 by The McGraw-Hill Companies. All rights reserved. Except as permitted under the United States Copyright
Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database
or retrieval system, without the prior written permission of the publisher.
ISBN: 978-0-07-173641-1
MHID: 0-07-173641-7
The material in this eBook also appears in the print version of this title: ISBN: 978-0-07-173640-4,
MHID: 0-07-173640-9.
All trademarks are trademarks of their respective owners. Rather than put a trademark symbol after every occurrence of a
trademarked name, we use names in an editorial fashion only, and to the benefi t of the trademark owner, with no intention of
infringement of the trademark. Where such designations appear in this book, they have been printed with initial caps.
McGraw-Hill eBooks are available at special quantity discounts to use as premiums and sales promotions, or for use in corporate
training programs. To contact a representative please e-mail us at
Information has been obtained by McGraw-Hill from sources believed to be reliable. However, because of the possibility of
human or mechanical error by our sources, McGraw-Hill, or others, McGraw-Hill does not guarantee the accuracy, adequacy,
or completeness of any information and is not responsible for any errors or omissions or the results obtained from the use of
such information.
TERMS OF USE


This is a copyrighted work and The McGraw-Hill Companies, Inc. (“McGrawHill”) and its licensors reserve all rights in and to
the work. Use of this work is subject to these terms. Except as permitted under the Copyright Act of 1976 and the right to store
and retrieve one copy of the work, you may not decompile, disassemble, reverse engineer, reproduce, modify, create derivative
works based upon, transmit, distribute, disseminate, sell, publish or sublicense the work or any part of it without McGraw-Hill’s
prior consent. You may use the work for your own noncommercial and personal use; any other use of the work is strictly prohib-
ited. Your right to use the work may be terminated if you fail to comply with these terms.
THE WORK IS PROVIDED “AS IS.” McGRAW-HILL AND ITS LICENSORS MAKE NO GUARANTEES OR
WARRANTIES AS TO THE ACCURACY, ADEQUACY OR COMPLETENESS OF OR RESULTS TO BE OBTAINED
FROM USING THE WORK, INCLUDING ANY INFORMATION THAT CAN BE ACCESSED THROUGH THE WORK
VIA HYPERLINK OR OTHERWISE, AND EXPRESSLY DISCLAIM ANY WARRANTY, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. McGraw-Hill and its licensors do not warrant or guarantee that the functions contained in the work
will meet your requirements or that its operation will be uninterrupted or error free. Neither McGraw-Hill nor its licensors
shall be liable to you or anyone else for any inaccuracy, error or omission, regardless of cause, in the work or for any damages
resulting therefrom. McGraw-Hill has no responsibility for the content of any information accessed through the work. Under no
circumstances shall McGraw-Hill and/or its licensors be liable for any indirect, incidental, special, punitive, consequential or
similar damages that result from the use of or inability to use the work, even if any of them has been advised of the possibility
of such damages. This limitation of liability shall apply to any claim or cause whatsoever whether such claim or cause arises in
contract, tort or otherwise.
To my kids—With practice you can perform impossible tasks easily.



About the Author
Ashwani Nanda develops and maintains marketing, analytical, and CRM-based
database systems for medium- to large-sized enterprises. His current area of
specialization is data modeling, database development, business intelligence reporting,
and analysis. He started his career on real-time mainframe systems back in the age
when hard disks used to weigh a kilo per megabyte. Moving from system engineering
for mainframes to networking and infrastructure support, then to database management

and currently to business intelligence, he has worked for several major hardware and
software vendors. He loves to integrate disparate technologies utilizing the best features
of available applications. These days he is using his business intelligence skills to
create data visualization reports. He can be reached at
About the Technical Editor
Allan Mitchell started his love affair with ETL in SQL Server 7 and Data
Transformation Services. He moved on to SSIS with SQL Server 2005 and has
traveled the world working with clients big and small who have complex data
integration issues. He lives in the UK and is married to Lesley. They have a
wonderful son, Ewan.
v
Contents at a Glance
Chapter 1 Introducing SQL Server Integration Services . . . . . . . . . . . . . . . . . . . . 1
Chapter 2 Getting Started with Wizards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Chapter 3 Nuts and Bolts of the SSIS Workflow . . . . . . . . . . . . . . . . . . . . . . . . . 69
Chapter 4 Integration Services Control Flow Containers . . . . . . . . . . . . . . . . . . . . 109
Chapter 5 Integration Services Control Flow Tasks . . . . . . . . . . . . . . . . . . . . . . . 135
Chapter 6 Administering Integration Services . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Chapter 7 Securing Integration Services Packages . . . . . . . . . . . . . . . . . . . . . . . 269
Chapter 8 Advanced Features of Integration Services . . . . . . . . . . . . . . . . . . . . . 291
Chapter 9 Data Flow Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Chapter 10 Data Flow Transformations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
Chapter 11 Programming Integration Services . . . . . . . . . . . . . . . . . . . . . . . . . . 481
Chapter 12 Data Warehousing and SQL Server 2008 Enhancements . . . . . . . . . . . . . 535
Chapter 13 Deploying Integration Services Packages . . . . . . . . . . . . . . . . . . . . . . 567
Chapter 14 Migrating to Integration Services 2008 . . . . . . . . . . . . . . . . . . . . . . . 595
Chapter 15 Troubleshooting and Performance Enhancements . . . . . . . . . . . . . . . . 631
Appendix How to Use the Provided Software . . . . . . . . . . . . . . . . . . . . . . . . . . 673
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 677
This page intentionally left blank

vii
Contents
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi
Chapter 1 Introducing SQL Server Integration Services . . . . . . . . . . . . . . . . . . . . 1
Integration Services: Features and Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Integration Services Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Integration Services Designer and Management Tools . . . . . . . . . . . . . . . . . . . . . 4
Data Warehousing Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Standardizing and Enhancing Data Quality Features . . . . . . . . . . . . . . . . . . . . . . 6
Converting Data into Meaningful Information . . . . . . . . . . . . . . . . . . . . . . . . . 7
Data Consolidation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Package Security Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Service-Oriented Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SSIS Package as a Data Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Programmability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Scripting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Easy Management of SSIS Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Automating Administrative Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Easy Deployment Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Legacy Support Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
What’s New in Integration Services 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Better Lookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Improved ADO NET Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Powerful Scripting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Extended Import and Export Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Ability to Profile Your Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Optimized Thread Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SSIS Package Upgrade Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Taking Advantage of Change Data Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Benefiting from T-SQL Merge Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Enhanced Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Inclusion of New Date and Time Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Where Is DTS in SQL Server 2008? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
viii Hands-On Microsoft SQL Server 2008 Integration Services
Integration Services in SQL Server 2008 Editions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
32-Bit Editions vs. 64-Bit Editions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Integration Services Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Integration Services Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Integration Services Object Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Integration Services Run Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Integration Services Data Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Installing Integration Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Installing Integration Services on a Clean System . . . . . . . . . . . . . . . . . . . . . . . 21
Hands-On: Installing SQL Server 2008 Integration Services . . . . . . . . . . . . . . . . . . 22
Installing Integration Services from the Command Prompt . . . . . . . . . . . . . . . . . . 25
Installing Side by Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Upgrading to SQL Server 2008 Integration Services . . . . . . . . . . . . . . . . . . . . . . 27
Business Intelligence Development Studio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Hands-On: Creating a Blank Integration Services Project . . . . . . . . . . . . . . . . . . . 29
SQL Server Management Studio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Hands-On: Connecting to Integration Services Service . . . . . . . . . . . . . . . . . . . . . 37
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Chapter 2 Getting Started with Wizards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Starting SQL Server Import and Export Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Hands-On: Importing a Flat File into SQL Server 2008 . . . . . . . . . . . . . . . . . . . . . 43
Using Business Intelligence Development Studio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Hands-On: Exploring an SQL Server Import and Export Wizard Package Using BIDS . . . . 53
Integration Services Connections Project Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Analyzing Data Quality with the Data Profiling Task . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Single-Column Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Multiple-Column Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Hands-On: Using Data Profiling Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Chapter 3 Nuts and Bolts of the SSIS Workflow . . . . . . . . . . . . . . . . . . . . . . . . . 69
Integration Services Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Solutions and Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
File Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Fixed Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Delimited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Ragged Right . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Contents ix
Connection Managers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
ADO Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
ADO.NET Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Cache Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Excel Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
File Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Flat File Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
FTP Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
HTTP Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
MSMQ Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Analysis Services Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Multiple Files Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Multiple Flat Files Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
ODBC Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
OLE DB Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
SMO Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
SMTP Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
SQL Server Compact Edition Connection Manager . . . . . . . . . . . . . . . . . . . . . . . 81

WMI Connection Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Microsoft Connector 1.0 for SAP BI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Microsoft Connector for Oracle by Attunity . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Microsoft Connector for Teradata by Attunity . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Data Sources and Data Source Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Data Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Data Source View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
SSIS Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
System Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Hands-On: Using System Variables to Create Custom Logs . . . . . . . . . . . . . . . . . . 87
User-Defined Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Hands-On: Creating a Directory with User-Defined Variables . . . . . . . . . . . . . . . . . 95
Precedence Constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Constraint Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Multiple Constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Integration Services Expressions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Hands-On: Using Expressions to Update Properties at Run Time . . . . . . . . . . . . . . . 105
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

×