Scalability and Performance
| Express | Workgroup | Standard | Enterprise | |
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| Paid Yearly | FREE | $999.90* ($83.33 average monthly cost) | $2499.90* ($208.33 average monthly cost) | Contact Us |
| * Two months FREE with a yearly payment. | ||||
| Paid Monthly | FREE | $99.99 ($149.99 dual processor) | $249.99 ($499.99 dual processor) | Contact Us |
| Number of CPUs | 1 | 2 | 4 | No Limit |
| RAM | 1 GB | 3 GB | Operating System Maximum | Operating System Maximum |
| 64-bit Support | Windows on Windows (WoW) | Windows on Windows (WoW) |  |
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| Database Size | 4 GB | No Limit | No Limit | No Limit |
High Availability
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| Database Mirroring |  |
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| Failover Clustering | |
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| Backup Log-shipping | |
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| Online System Changes | |
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| Fast Recovery | |
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Manageability
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| Auto Tuning | |
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| Profiler | |
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| SQL Server Management Studio Express | |
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| Management Studio | |
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| Serviceability Enhancements | |
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| SQL Agent Job Scheduling Service | |
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Business Intelligence
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| Report Server | |
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| Report Builder | |
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| Reporting Data Sources | |
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| Data Warehousing | |
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| SQL Analytical Functions | |
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| Enterprise Management Tools | |
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| Analysis Services | |
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| Business Analytics | |
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| Data Mining | |
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| Text Mining | |
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