2. SESSION CODE: DAT304
Dandy Weyn
Sr. Technical Product Manager
Microsoft Corp.
Migration Done Right - Migrating to SQL Server on premise and in the cloud
(c) 2011 Microsoft. All rights reserved.

3. Upgrade versus Migration…

4. Why Upgrade OR Migrate?

5. What is Upgrade? Existing version of SQL Server to a higher version
(c) 2011 Microsoft. All rights reserved.

6. Extend any data End user analytics Common Tools Appliances
OData
Data Sync
Code Name “Denali”
On Premises & Private cloud
Common Architecture
Public Cloud

7. Database Migration Process
Scoping and Planning
Microsoft Assessment
and Planning Toolkit
Database Discovery
Database Migration
Non-code requirements (AlwaysOn, Perf, locale, maintenance, dependencies, etc…)
Migration Assistant
Application Remediation
Migration Impact Assessment
Schema Conversion
Data Migration
Application Deployment
Embedded SQL Statement
Database connectivity
User Login and Permission

8. Microsoft Assessment and Planning (MAP) Toolkit
Agentless inventory and assessment
Provides readiness assessments for
Windows 7, Office 2010, Internet Explorer
Windows Server 2008 R2, Hyper-V
Windows Azure Platform
SQL Server, Oracle, MySQL, and Sybase Discovery
Generates customizable proposals and reports
Ideal discovery tool for Database Migration
And Consolidation Projects

9. demo SQL Server Migration Assistant 4/20/2017 2:36 AM
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

10. SQL Server Migration Assistant
Automates and simplifies all phases of database migration
Assess migration complexity
Migration Analyzer
Migrate schema and business logic
Schema Converter
Migrate data
Data Migrator
Validate converted database
Migration Tester
Support migration from Oracle, Sybase, MySQL and Access database

11. The complexity of Migration…

12. “Crikey! Your language is slightly different …”
“you triggered me BEFORE… instead of AFTER”
“I am a variable character too”
“The way I deal with dates is different too”
“I am a total package”
“What’s that sequence?”
I said, "Do you speak-a my language?"
(c) 2011 Microsoft. All rights reserved.

14. Database Migration Challenges
The challenge of feature and non-standard mappings
Oracle
SQL Server
Table/View
Table/View
UserDb
SysDb
Master
Data Types
Data Types
T-SQL
Procedure
Procedure
User Function
User Function
Package
Sequence
Trigger
Trigger
System Function
System Function
Emulator
Standard Package
PL/SQL

15. demo A closer look at Schema Conversion 4/20/2017 2:36 AM
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

16. F R E E SSMA Migration Best Practices
Customize SSMA project settings
Customize mapping behavior
Customize feature behavior
Customize migration project
Customize Data Type Mapping
Get SQL SERVER MIGRATION ASSISTANT
F R E E
Leverage SQL Server native Datatypes
Use the smallest datatype
Rethink data type mapping and advantages
Re-Engineer Code
Rethink Stored Procedure Logic
Rethink Function Logic
Optimize Infrastructure, People and Processes

17. SSMA Migration Paths

18. To the Cloud Migrations

19. Data Migration Scenarios
TechReady12
Data Migration Scenarios
4/20/2017
One-Off
Scenarios
Tools
Migration to/from SQL Server
Transfer between SQL Azure servers/databases
BCP
SSMS Generate script wizard
SQL Server Import & Export Data
SSIS
SQL Azure Database Copy
SQL Azure Migration Wizard
DAC
DAC Logical Imort/Export
SQL Server Migration Assistant
On-Going
Publish to cloud
Share between on-prem and cloud apps
Data distribution
One-way or two-way
SQL Azure Data Sync
Sync Framework
© 2011 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

20. Scenarios and examples
On-Premises
Cloud
Application
Application
SQL Azure
SQL Server
Application
Application
Geo-located web apps
Traffic manager
Single location, branch office, retail
SQL Azure
SQL Azure
Application
Reporting
Web site reference data
Application
SQL Server
One-way publish, two-way sharing, aggregation
SQL Azure

21. demo Moving to and From SQL Azure 4/20/2017 2:36 AM
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

22. Resources Database Migration Resources & WhitePaper
Free Technical Support
Discussion Forum
SSMA Team Blog

23. Question & Answer Session
(c) 2011 Microsoft. All rights reserved.

24. Migration Success stories and customer evidence
Why Migrate from Oracle to Microsoft SQL Server?
Migration Success stories and customer evidence
What some of our customers say …
We moved nine-terabyte system migrated from Oracle using SSMA that resulted in significant TCO savings.
We were going for Better - Faster - Cheaper. And we attained all three!
We not only reduce $63,000 in annual licensing cost but we also improved uptime.
We improved development productivity and lowered cost after migrating our mission-critical system from Oracle.
© 2011 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.

25. Win a Touch Mouse! 10 prizes drawn every day!*
Complete your session evaluation on Schedule Builder for your chance to win a Windows 7 Touch Mouse
Exclusive for Windows 7
Eleven multi touch gestures
Contoured shape for superior comfort
10 prizes drawn every day!*
*Please see Registration for full terms and conditions

26. SIMPLY PARTICIPATING IN TECH∙ED AUSTRALIA
GET REWARDED FOR
SIMPLY PARTICIPATING IN TECH∙ED AUSTRALIA
DOWNLOAD QR CODE READER FOR YOUR MOBILE DEVICE
Windows Phone 7 we suggest Quick Reader
Symbian we suggest the built in reader or mobile Tag
IOS we suggest QR Reader
Blackberry we suggest Mobile Tag
Android phones we suggest Barcode Scanner
GO TO THE TECHQUEST WEBSITE & CREATE A PROFILE
EXAMPLE ONLY

27. Dandy Weyn dandyw@microsoft.com Sr. Technical Product Manager
Database Track PM TechReady13

28. (c) 2011 Microsoft. All rights reserved.
4/20/2017 2:36 AM
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
(c) 2011 Microsoft. All rights reserved.
© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

29. Resources www.msteched.com/Australia Sessions On-Demand & Community
Microsoft Certification & Training Resources
technet.microsoft.com/en-au
Resources for IT Professionals
Resources for Developers
(c) 2011 Microsoft. All rights reserved.

30. aPPENDIX

31. Schema Conversion Details
(c) 2011 Microsoft. All rights reserved.

32. Converting Data Types Migration Challenges SSMA Conversion Approach
Dynamic precision and scale
NUMBER, VARCHAR2
Wider range of supported value
Oracle stores from 4712 while SQL Server’s DATETIME stores from 01/01/1753 and DATETIME2 stores from 01/01/0001
TIMESTAMP has nanosecond precision while DATETIME2 stores up to 100 nanoseconds
Complex data type
User defined type: Object type, collections
SSMA Conversion Approach
Convert to maximum possible
NUMBER converted to float(53), which has the maximum precision from SQL Server floating-point numbers
VARCHAR2 converted to VARCHAR(MAX)
Project setting
specify how to handle out of bound values during data migration
Error, null, closest supported value
Raise conversion message when user defined type is used in table, view, and PL/SQL program

33. Converting Procedures and Functions
Migration Challenge
No big differences between procedure and function in Oracle
error handling
DML statement: update, insert, delete
temporary table access
calling procedures (except extended procedures)
Parameter
Support IN, OUT and IN OUT parameters
Scale and precision not specified
Parameter overloading
Procedures don’t return result sets
Use cursors, records and collection as output parameter
Autonomous Transaction
SSMA Conversion Approach
Functions converted to function and stored procedure when containing operations forbidden in functions are needed
such procedures have $IMPL suffix
Extended stored procedure to call procedure within function and emulate autonomous transaction
master..xp_ora2ms_exec2

34. Converting Oracle Packages
Migration Challenge
Oracle specific implementation to logically group schema objects
Compare to SQL Server’s Schema:
no concept of global package objects
variables and constants
no concepts of private/public objects
private functions, procedures, types
no concept of package state
e.g. invalid because of compilation errors
Module nesting
definition of procedures/functions
inside other modules
SSMA Conversion Approach
Convert to procedure and function with the following naming convention
dbo.PACKAGENAME$MODULENAME
Emulate package variable by storing values in a central table
Inline substitution for module nesting

35. Converting Oracle Sequences
Migration Challenge
Generate number sequence – not bound to a table
NEXTVAL method to generate next value of a sequence
CURRVAL method to retrieve current value of the sequence (bound to current session scope)
SSMA Conversion Approach
One table per sequence
uses IDENTITY
get values through procedures/functions
Maintenance
additional procedures to drop/create
Limitation
min/max values are not enforced
functions are slower
use extended stored procedure to exec procedure
some options not available
NOCYCLE, NOCACHE, NOORDER
SQL Server code name Denali supports SEQUENCES

36. Converting Oracle Triggers
Migration Challenge
FOR EACH ROW trigger
The most common Oracle trigger which fires for each row of the source statement.
SQL Server only supports statement level trigger
Before trigger
Possible to modify the actual field values that will be stored in the table, or even cancel the execution
Allow multiple trigger for each events (INSERT or UPDATE)
SQL Server only support one trigger per event
SSMA Conversion Approach
Row-level triggers are emulated with a cursor loop and generate ROWID for table with trigger.
BEFORE triggers are converted to INSTEAD OF trigger
Incorporate triggering statement into the trigger body
Cursor loop to handle affected multiple rows
Logic from all BEFORE triggers on that table into a single target trigger.