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Update 5-recommend-database-scalability.md
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learn-pr/wwl-azure/design-data-storage-solution-for-relational-data/includes/5-recommend-database-scalability.md

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@@ -34,6 +34,6 @@ Review the following scaling scenarios, and think about which database scaling s
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| Scenario | Scaling solution |
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| --- | --- |
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| Manage and scale multiple Azure SQL databases that have varying and unpredictable resource requirements | **Elastic database pools and vertical scaling**. Use elastic database pools to ensure databases get the performance resources they need when they need it. Elastic pools provide a simple resource allocation mechanism within a predictable budget. There's no per-database charge for elastic pools. You're billed for each hour a pool exists at the highest eDTU or vCores, regardless of usage or whether the pool was active for less than an hour. |
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| Different sections of a database reside in different geographic locations for compliance reasons | **Horizontal scaling and sharding**. Use sharding to split your data into several databases and scale them independently. The shard map manager is a special database that maintains global mapping information about all shards (databases) in a shard set. The metadata allows an application to connect to the correct database based on the value of the sharding key. |
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| Dependency support for commercial BI or data integration tools, where multiple databases contribute rows into a single overall result for use in Excel, Power BI, or Tableau | **Elastic database tools and elastic query**. Use the Elastic database tools elastic query feature to access data spread across multiple databases. Elastic query is available on the Standard tier. Querying can be done in T-SQL that spans multiple databases in Azure SQL Database. Run cross-database queries to access remote tables, and to connect tools (Excel, Power BI, Tableau, and so on) and query across data tiers. You can scale out queries to large data tiers and visualize the results in business intelligence reports. |
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| Manage and scale multiple Azure SQL databases that have varying and unpredictable resource requirements | **Elastic database pools and vertical scaling**. Elastic database pools let databases share resources, helping them perform well when needed. You pay a set hourly rate for the pool based on its highest capacity, with no extra charge per database. |
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| Different sections of a database reside in different geographic locations for compliance reasons | **Horizontal scaling and sharding**. Sharding splits data across multiple databases for independent scaling. The shard map manager helps applications find the right database using the sharding key.|
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| Dependency support for commercial BI or data integration tools, where multiple databases contribute rows into a single overall result for use in Excel, Power BI, or Tableau | **Elastic database tools and elastic query**. You can use elastic query to access data across multiple databases in Azure SQL Database. This feature lets you run T-SQL queries on remote tables and connect tools like Excel, Power BI, and Tableau to view and analyze data. Elastic query is available on the Standard tier and supports scalable, cross-database queries for business reporting.|

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