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Merge pull request #115270 from MicrosoftDocs/release-build-synapse-sqldw
Build - Azure Synapse Analytics (Azure Repo)
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articles/synapse-analytics/sql-data-warehouse/sql-data-warehouse-reference-tsql-system-views.md

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* [sys.dm_pdw_sys_info](/sql/relational-databases/system-dynamic-management-views/sys-dm-pdw-sys-info-transact-sql?toc=/azure/synapse-analytics/sql-data-warehouse/toc.json&bc=/azure/synapse-analytics/sql-data-warehouse/breadcrumb/toc.json&view=azure-sqldw-latest)
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* [sys.dm_pdw_wait_stats](/sql/relational-databases/system-dynamic-management-views/sys-dm-pdw-wait-stats-transact-sql?toc=/azure/synapse-analytics/sql-data-warehouse/toc.json&bc=/azure/synapse-analytics/sql-data-warehouse/breadcrumb/toc.json&view=azure-sqldw-latest)
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* [sys.dm_pdw_waits](/sql/relational-databases/system-dynamic-management-views/sys-dm-pdw-waits-transact-sql?toc=/azure/synapse-analytics/sql-data-warehouse/toc.json&bc=/azure/synapse-analytics/sql-data-warehouse/breadcrumb/toc.json&view=azure-sqldw-latest)
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* [sys.dm_workload_management_workload_groups_stats](/sql/relational-databases/system-dynamic-management-views/sys-dm-workload-management-workload-group-stats-transact-sql?toc=/azure/synapse-analytics/sql-data-warehouse/toc.json&bc=/azure/synapse-analytics/sql-data-warehouse/breadcrumb/toc.json&view=azure-sqldw-latest) (Preview)
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* [sys.dm_workload_management_workload_groups_stats](/sql/relational-databases/system-dynamic-management-views/sys-dm-workload-management-workload-group-stats-transact-sql?toc=/azure/synapse-analytics/sql-data-warehouse/toc.json&bc=/azure/synapse-analytics/sql-data-warehouse/breadcrumb/toc.json&view=azure-sqldw-latest)
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## SQL Server DMVs applicable to Synapse SQL pool
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articles/synapse-analytics/sql-data-warehouse/sql-data-warehouse-tables-distribute.md

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Choosing a distribution column is an important design decision since the values in this column determine how the rows are distributed. The best choice depends on several factors, and usually involves tradeoffs. However, if you don't choose the best column the first time, you can use [CREATE TABLE AS SELECT (CTAS)](/sql/t-sql/statements/create-table-as-select-azure-sql-data-warehouse?toc=/azure/synapse-analytics/sql-data-warehouse/toc.json&bc=/azure/synapse-analytics/sql-data-warehouse/breadcrumb/toc.json&view=azure-sqldw-latest) to re-create the table with a different distribution column.
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Data stored in the distribution column can be updated. Updates to data in the distribution column could result in data shuffle operation.
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### Choose a distribution column that does not require updates
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Choosing a distribution column is an important design decision since the values in this column determine how the rows are distributed. The best choice depends on several factors, and usually involves tradeoffs. Once a distribution column is chosen, you cannot change it.
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You cannot update a distribution column unless you delete the row and insert a new row with the updated values. Therefore, select a column with static values.
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If you didn't choose the best column the first time, you can use [CREATE TABLE AS SELECT (CTAS)](/sql/t-sql/statements/create-table-as-select-azure-sql-data-warehouse?toc=/azure/synapse-analytics/sql-data-warehouse/toc.json&bc=/azure/synapse-analytics/sql-data-warehouse/breadcrumb/toc.json&view=azure-sqldw-latest) to re-create the table with a different distribution column.
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### Choose a distribution column with data that distributes evenly
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articles/synapse-analytics/sql-data-warehouse/sql-data-warehouse-workload-isolation.md

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ms.custom: azure-synapse
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# Azure Synapse Analytics workload group isolation (Preview)
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# Azure Synapse Analytics workload group isolation
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This article explains how workload groups can be used to configure workload isolation, contain resources, and apply runtime rules for query execution.
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articles/synapse-analytics/sql-data-warehouse/sql-data-warehouse-workload-management-portal-monitor.md

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# Azure Synapse Analytics – Workload Management Portal Monitoring (Preview)
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# Azure Synapse Analytics – Workload Management Portal Monitoring
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This article explains how to monitor [workload group](sql-data-warehouse-workload-isolation.md#workload-groups) resource utilization and query activity.
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For details on how to configure the Azure Metrics Explorer see the [Getting started with Azure Metrics Explorer](../../azure-monitor/platform/metrics-getting-started.md?toc=/azure/synapse-analytics/sql-data-warehouse/toc.json&bc=/azure/synapse-analytics/sql-data-warehouse/breadcrumb/toc.json) article. See the [Resource utilization](sql-data-warehouse-concept-resource-utilization-query-activity.md#resource-utilization) section in Azure Synapse Analytics Monitoring documentation for details on how to monitor system resource consumption.

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