Download Introduction to Azure SQL Databases

Azure SQL Databases Introduction and Migration
Kumar Bijayanta
2/14/2015
Azure SQL Databases
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Database as a service.
Hosted on Azure VMs.
Pay as you go.
No upfront cost, no termination fees.
Price starting from 0.41 rs/hr.
Access over internet.
Easily Scalable.
Capabilities •
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Close to zero maintenance.
Predictable performance.
Availability backed by replicas.
Data protection via auditing , restore and georeplication.
• Easily scalable.
• Automated backup and restore.
Editions
• Web and Business unpredictable performance.
5 GB - 150 GB
Supported until September.
• Basic, Standard and Premium
Predictable performance
upto 500 GB.
DTUs - a blend of memory, CPU, I/O, etc.
Comparison
Demo
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Create a database.
Run queries against it.
Scale Database.
Backup and Restore.
Advantages
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Close to zero maintenance.
Create database in seconds.
Code near data.
Guaranteed predictable performance.
Easily scalable.
Lower price.
Built-in HA, backup and restore
Database migration
• Size
– Time to migrate directly proportional to size.
– Transactions could be throttled.
• Complexity
– Schema changes.
– Features not supported in Azure.
Migration tools
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Azure SQL Database Import and Export Service.
Database Copy.
SQL Server Import and Export Wizard.
SQL Database Migration Wizard.
SQL Server Migration Assistant From Accss/DB2/Oracle/MySQL
• BCP.
• SQL Server Integration Services.
Demo
• Migration that requires database to be
modified.
• Clean errors and migrate.
Migration Best Practices
• Pick S2 or higher edition for the migration
duration.
• Copy bacpac file to Azure blob.
• Run the source database trough SQL database
migration wizard.
• Separate operations into smaller batches.
• Retry logic.