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Merge pull request #57993 from TwoUnder/master
Updating the table limits for SQL DW
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articles/sql-data-warehouse/sql-data-warehouse-service-capacity-limits.md

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ms.service: sql-data-warehouse
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ms.topic: conceptual
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ms.component: implement
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ms.date: 07/26/2018
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ms.date: 11/14/2018
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ms.author: anvang
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ms.reviewer: igorstan
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---
@@ -30,7 +30,7 @@ Maximum values allowed for various components of Azure SQL Data Warehouse.
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|:--- |:--- |:--- |
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| Database |Max size | Gen1: 240 TB compressed on disk. This space is independent of tempdb or log space, and therefore this space is dedicated to permanent tables. Clustered columnstore compression is estimated at 5X. This compression allows the database to grow to approximately 1 PB when all tables are clustered columnstore (the default table type). <br/><br/> Gen2: 240TB for rowstore and unlimited storage for columnstore tables |
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| Table |Max size |60 TB compressed on disk |
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| Table |Tables per database |10,000 |
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| Table |Tables per database | 100,000 |
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| Table |Columns per table |1024 columns |
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| Table |Bytes per column |Dependent on column [data type](sql-data-warehouse-tables-data-types.md). Limit is 8000 for char data types, 4000 for nvarchar, or 2 GB for MAX data types. |
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| Table |Bytes per row, defined size |8060 bytes<br/><br/>The number of bytes per row is calculated in the same manner as it is for SQL Server with page compression. Like SQL Server, SQL Data Warehouse supports row-overflow storage, which enables **variable length columns** to be pushed off-row. When variable length rows are pushed off-row, only 24-byte root is stored in the main record. For more information, see [Row-Overflow Data Exceeding 8-KB](https://msdn.microsoft.com/library/ms186981.aspx). |

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