1. Oracle To SQL Migration – Beyond SSMA (SQL Server Migration Assistant)
6/18/2018 9:47 PM
Oracle To SQL Migration – Beyond SSMA (SQL Server Migration Assistant)
Amit Bansal
Director, SQLMaestros
A_Bansal |
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2. Agenda Motivation Methodology Beyond SSMA Let’s Migrate (Demo) Summary
6/18/2018 9:47 PM
Agenda
Motivation
Methodology
Beyond SSMA
Let’s Migrate (Demo)
Summary
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3. Motivation Cost / Industry Leading TCO Everything Built-In
6/18/2018 9:47 PM
Motivation
Cost / Industry Leading TCO
Everything Built-In
Modernization
Hybrid Capabilities
Leadership Position
MS Data Platform – Growth
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4. Businesses migrated from Oracle to SQL Server
6/18/2018 9:47 PM
Businesses migrated from Oracle to SQL Server
Migrations by industry
Financial services 96
Discrete manufacturing 78
Retail and consumer goods 70
Professional services 62
Government 57
Health 55
Process manufacturing 41
Power and utilities 25
Telecommunications
Hospitality and travel 23
Other industries 99
TOTAL
631
BMW
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5. Agenda Motivation Methodology Beyond SSMA Let’s Migrate (Demo) Summary
6/18/2018 9:47 PM
Agenda
Motivation
Methodology
Beyond SSMA
Let’s Migrate (Demo)
Summary
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6. Migration Methodology
6/18/2018 9:47 PM
Migrate
Test
Remediate
Define
Assess
Design
Deploy
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7. SSMA Migrations Project-based migration Online database explorer
6/18/2018 9:47 PM
Project-based migration
Online database explorer
Schema migration
Data migration
Platform extensions
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8. Agenda Motivation Methodology Beyond SSMA Let’s Migrate (Demo) Summary
6/18/2018 9:47 PM
Agenda
Motivation
Methodology
Beyond SSMA
Let’s Migrate (Demo)
Summary
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9. Beyond SSMA Data Type Mappings Dynamic SQL User Defined Types
6/18/2018 9:47 PM
Beyond SSMA
Data Type Mappings
Dynamic SQL
User Defined Types
Transactional Context
Nested PL/SQL Subprograms
User Defined Functions
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10. Data Type Mappings Oracle SQL NUMBER(<precision>, <scale>)
6/18/2018 9:47 PM
Data Type Mappings
Oracle
SQL
NUMBER(<precision>, <scale>)
numeric(<precision>, <scale>)
NUMBER(<precision>)
numeric(<precision>)
NUMBER
float(53)
INTEGER
int
BINARY_INTEGER
PLS_INTEGER
NUMBER -> smallint or NUMBER(20) -> int
INTEGER to bigint
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11. Data Type Mappings Oracle SQL DATE Datetime2[0] TIMESTAMP Datetime2
6/18/2018 9:47 PM
Data Type Mappings
Oracle
SQL
DATE
Datetime2[0]
TIMESTAMP
Datetime2
datetime range: 01/01/1753 to 12/31/9999
datetime2 01/01/0001 to 12/31/9999 (Oracle has 7
Oracle’s DATE starts from 4712 BC
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12. Data Type Mappings Oracle SQL INTERVAL No Support Solution?
6/18/2018 9:47 PM
Data Type Mappings
Oracle
SQL
INTERVAL
No Support
Solution?
Ans: Manual
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13. Demo Oracle to SQL Migration 6/18/2018 9:47 PM
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14. Data Type Mappings Oracle SQL VARCHAR2 varchar CHAR char NVARCHAR2
6/18/2018 9:47 PM
Data Type Mappings
Oracle
SQL
VARCHAR2
varchar
CHAR
char
NVARCHAR2
NCHAR
nvarchar
nchar
If a PL/SQL variable is declared with a constant size greater than 8,000, SSMA maps to varchar(max)
Formal parameter (procedure/function) with length not declared -> varchar(max)
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15. Demo Oracle to SQL Migration 6/18/2018 9:47 PM
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16. Dynamic SQL SSMA does not support Manual Conversion 6/18/2018 9:47 PM
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17. Demo Oracle to SQL Migration 6/18/2018 9:47 PM
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18. User Defined Types SSMA does not support Manual Conversion
6/18/2018 9:47 PM
User Defined Types
SSMA does not support
Manual Conversion
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19. Demo Oracle to SQL Migration 6/18/2018 9:47 PM
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20. Transactional Context
6/18/2018 9:47 PM
Transactional Context
Oracle vs SQL. Understand the intricacies
Oracle’s History: Optimistic
SQL Sever History: Pessimistic (until SQL Server 2005)
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21. Demo Oracle to SQL Migration 6/18/2018 9:47 PM
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22. Nested PL/SQL Subprograms
6/18/2018 9:47 PM
Nested PL/SQL Subprograms
Inline
Separate Stored Procedures
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23. Demo Oracle to SQL Migration 6/18/2018 9:47 PM
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24. User Defined Function Invoking SP from inside a function
6/18/2018 9:47 PM
User Defined Function
Invoking SP from inside a function
workaround implements a function body as a stored procedure and invokes it within the function by means of an extended procedure
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25. Demo Oracle to SQL Migration 6/18/2018 9:47 PM
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26. Many Other Things Jobs Packages System Views
6/18/2018 9:47 PM
Many Other Things
Jobs
Packages
System Views
Learn about: Microsoft Extensibility Framework
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27. No More Demos :) Oracle to SQL Migration Completed ;)
6/18/2018 9:47 PM
No More Demos :)
Oracle to SQL Migration Completed ;)
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30. 6/18/2018 9:47 PM
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