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Merge pull request #36470 from rwestMSFT/ads/remove-003
ADS: Remove Azure Data Studio
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‎docs/breadcrumb/toc.yml‎

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- name: SQL Server Reporting Services
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tocHref: /sql/reporting-services/
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topicHref: /sql/reporting-services/create-deploy-and-manage-mobile-and-paginated-reports
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- name: Azure Data Studio
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tocHref: /azure-data-studio/
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topicHref: /azure-data-studio/index

‎docs/docfx.json‎

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"machine-learning/index.yml": "",
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"analysis-services/**/*.md": "",
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"analytics-platform-system/**/*.md": "Parallel Data Warehouse",
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"azure-data-studio/**/*.md": "Azure Data Studio",
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"integration-services/**/*.md": "SQL Server Integration Services (SSIS)",
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"language-extensions/**/*.md": "SQL Server Language Extensions",
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"relational-database/replication/**/*.md": "SQL Server Replication",

‎docs/relational-databases/databases/create-a-database-snapshot-transact-sql.md‎

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---
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title: "Create a database snapshot (Transact-SQL)"
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title: "Create a Database Snapshot (Transact-SQL)"
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description: "Find out how to create a SQL Server database snapshot by using Transact-SQL. Learn about prerequisites and best practices for creating snapshots."
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author: WilliamDAssafMSFT
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ms.author: wiassaf
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ms.reviewer: randolphwest
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ms.date: 10/02/2023
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ms.date: 01/26/2026
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ms.service: sql
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ms.subservice: configuration
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ms.topic: how-to
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- Prior to [!INCLUDE [sssql19-md](../../includes/sssql19-md.md)], the source database couldn't contain a `MEMORY_OPTIMIZED_DATA` filegroup. Support for in-memory database snapshots was added in [!INCLUDE [sssql19-md](../../includes/sssql19-md.md)].
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> [!IMPORTANT]
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> For information about other significant considerations, see [Database Snapshots (SQL Server)](database-snapshots-sql-server.md).
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> For information about other significant considerations, see [Database snapshots (SQL Server)](database-snapshots-sql-server.md).
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## Recommendations
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- [Best practice: limiting the number of database snapshots](#limiting-number)
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- [Best practice: client connections to a database snapshot](#client-connections)
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#### <a id="naming"></a> Best practice: naming database snapshots
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<a id="naming"></a>
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#### Best practice: naming database snapshots
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Before creating snapshots, it's important to consider how to name them. Each database snapshot requires a unique database name. For administrative ease, the name of a snapshot can incorporate information that identifies the database, such as:
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AdventureWorks_snapshot_evening
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```
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#### <a id="limiting-number"></a> Best practice: limiting the number of database snapshots
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<a id="limiting-number"></a>
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#### Best practice: limiting the number of database snapshots
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Creating a series of snapshots over time captures sequential snapshots of the source database. Each snapshot persists until it's explicitly dropped. Because each snapshot will continue to grow as original pages are updated, you may want to conserve disk space by deleting an older snapshot after creating a new snapshot.
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Creating a series of snapshots over time captures sequential snapshots of the source database. Each snapshot persists until it's explicitly dropped. Because each snapshot will continue to grow as original pages are updated, you might want to conserve disk space by deleting an older snapshot after creating a new snapshot.
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> [!NOTE]
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> To revert to a database snapshot, you need to delete any other snapshots from that database.
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#### <a id="client-connections"></a> Best practice: client connections to a database snapshot
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<a id="client-connections"></a>
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#### Best practice: client connections to a database snapshot
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To use a database snapshot, clients need to know where to find it. Users can read from one database snapshot while another is being created or deleted. However, when you substitute a new snapshot for an existing one, you need to redirect clients to the new snapshot. Users can manually connect to a database snapshot with [!INCLUDE [ssManStudioFull](../../includes/ssmanstudiofull-md.md)] or Azure Data Studio. However, to support a production environment, you should create a programmatic solution that transparently directs report-writing clients to the latest database snapshot of the database.
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To use a database snapshot, clients need to know where to find it. Users can read from one database snapshot while another is being created or deleted. However, when you substitute a new snapshot for an existing one, you need to redirect clients to the new snapshot. Users can manually connect to a database snapshot with [!INCLUDE [ssManStudioFull](../../includes/ssmanstudiofull-md.md)]. However, to support a production environment, you should create a programmatic solution that transparently directs report-writing clients to the latest database snapshot of the database.
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## Permissions
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Any user who can create a database can create a database snapshot; however, to create a snapshot of a mirror database, you must be a member of the **sysadmin** fixed server role.
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## Create a database snapshot using Transact-SQL
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1. Based on the current size of the source database, ensure that you have sufficient disk space to hold the database snapshot. The maximum size of a database snapshot is the size of the source database at snapshot creation. For more information, see [View the Size of the Sparse File of a Database Snapshot (Transact-SQL)](view-the-size-of-the-sparse-file-of-a-database-snapshot-transact-sql.md).
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1. Based on the current size of the source database, ensure that you have sufficient disk space to hold the database snapshot. The maximum size of a database snapshot is the size of the source database at snapshot creation. For more information, see [View the Size of the Sparse File of a Database Snapshot](view-the-size-of-the-sparse-file-of-a-database-snapshot-transact-sql.md).
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1. Issue a `CREATE DATABASE` statement on the files using the `AS SNAPSHOT OF` clause. Creating a snapshot requires specifying the logical name of every database file of the source database. The syntax is as follows:
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‎docs/relational-databases/databases/delete-a-database.md‎

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description: Learn how to delete a user-defined database in SQL Server Management Studio in SQL Server by using SQL Server Management Studio or Transact-SQL.
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author: WilliamDAssafMSFT
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ms.author: wiassaf
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ms.date: "05/24/2023"
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ms.reviewer: randolphwest
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ms.date: 01/26/2026
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ms.service: sql
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ms.subservice: supportability
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ms.topic: how-to
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- "dropping databases"
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- "databases [SQL Server], dropping"
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- "database removal [SQL Server]"
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monikerRange: "=azuresqldb-current||>=sql-server-2016||>=sql-server-linux-2017||=azuresqldb-mi-current"
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monikerRange: "=azuresqldb-current || >=sql-server-2016 || >=sql-server-linux-2017 || =azuresqldb-mi-current"
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---
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# Delete a Database
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# Delete a database
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[!INCLUDE [SQL Server Azure SQL Database Azure SQL Managed Instance](../../includes/applies-to-version/sql-asdb-asdbmi.md)]
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This article describes how to delete a user-defined database in [!INCLUDE[ssnoversion](../../includes/ssnoversion-md.md)] by using [!INCLUDE[ssManStudioFull](../../includes/ssmanstudiofull-md.md)] or [!INCLUDE[tsql](../../includes/tsql-md.md)].
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## <a name="Prerequisites"></a> Prerequisites
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- Delete any database snapshots that exist on the database. For more information, see [Drop a Database Snapshot (Transact-SQL)](../../relational-databases/databases/drop-a-database-snapshot-transact-sql.md).
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- If the database is involved in log shipping, remove log shipping.
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- If the database is published for transactional replication, or published or subscribed to merge replication, remove replication from the database.
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> [!WARNING]
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> Consider taking a full backup of the database before dropping it. A deleted database can be re-created only by restoring a full backup. For more information, see [Quickstart: Backup and restore a SQL Server database on-premises](../backup-restore/quickstart-backup-restore-database.md).
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### <a name="Security"></a> Security
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#### <a name="Permissions"></a> Permissions
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To execute DROP DATABASE, at a minimum, a user must have CONTROL permission on the database.
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## <a name="ADSProcedure"></a> Using Azure Data Studio (preview)
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#### To delete a database
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1. In **Object Explorer**, connect to an instance of the [!INCLUDE[ssDEnoversion](../../includes/ssdenoversion-md.md)], and then expand that instance.
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2. Expand **Databases**, right-click the database to delete, and then select **Delete**.
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3. To confirm you want to delete the database, select **Yes**.
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## <a name="SSMSProcedure"></a> Using SQL Server Management Studio
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#### To delete a database
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1. In **Object Explorer**, connect to an instance of the [!INCLUDE[ssDEnoversion](../../includes/ssdenoversion-md.md)], and then expand that instance.
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1. Expand **Databases**, right-click the database to delete, and then select **Delete**.
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1. Confirm the correct database is selected, and then select **OK**.
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## <a name="TsqlProcedure"></a> Using Transact-SQL
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For more information, see [DROP DATABASE (Transact-SQL)](../../t-sql/statements/drop-database-transact-sql.md).
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#### To delete a database
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1. Connect to the [!INCLUDE[ssDE](../../includes/ssde-md.md)].
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1. From the Standard bar, select **New Query**.
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1. Copy and paste the following example into the query window and select **Execute**. This example removes the `Sales` and `NewSales` databases.
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```sql
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USE master ;
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GO
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DROP DATABASE Sales, NewSales ;
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GO
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```
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## <a name="FollowUp"></a> Follow Up: After deleting a database
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Back up the `master` database. If `master` must be restored, any database that has been deleted since the last backup of `master` will still have references in the system catalog views and may cause error messages to be raised.
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## <a name="Restrictions"></a> Limitations and Restrictions
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- System databases cannot be deleted.
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- For more information, see [DROP DATABASE (Transact-SQL)](../../t-sql/statements/drop-database-transact-sql.md).
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## Next steps
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- [CREATE DATABASE &#40;SQL Server Transact-SQL&#41;](../../t-sql/statements/create-database-transact-sql.md)
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- [ALTER DATABASE &#40;Transact-SQL&#41;](../../t-sql/statements/alter-database-transact-sql.md)
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- [DROP DATABASE (Transact-SQL)](../../t-sql/statements/drop-database-transact-sql.md)
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- [Restore and recovery overview (SQL Server)](../backup-restore/restore-and-recovery-overview-sql-server.md)
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This article describes how to delete a user-defined database in [!INCLUDE [ssnoversion](../../includes/ssnoversion-md.md)] by using [!INCLUDE [ssManStudioFull](../../includes/ssmanstudiofull-md.md)] or [!INCLUDE [tsql](../../includes/tsql-md.md)].
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<a id="Prerequisites"></a>
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## Prerequisites
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- Delete any database snapshots that exist on the database. For more information, see [Drop a Database Snapshot](drop-a-database-snapshot-transact-sql.md).
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- If the database is involved in log shipping, remove log shipping.
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- If the database is published for transactional replication, or published or subscribed to merge replication, remove replication from the database.
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> [!WARNING]
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> Consider taking a full backup of the database before dropping it. You can recreate a deleted database only by restoring a full backup. For more information, see [Quickstart: Backup and restore a SQL Server database with SSMS](../backup-restore/quickstart-backup-restore-database.md).
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## Permissions
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To run `DROP DATABASE`, you need `CONTROL` permission on the database.
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<a id="SSMSProcedure"></a>
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## Use SQL Server Management Studio
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1. In **Object Explorer**, connect to an instance of the [!INCLUDE [ssDEnoversion](../../includes/ssdenoversion-md.md)], and then expand that instance.
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1. Expand **Databases**, right-click the database to delete, and then select **Delete**.
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1. Confirm the correct database is selected, and then select **OK**.
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<a id="TsqlProcedure"></a>
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## Use Transact-SQL
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For more information, see [DROP DATABASE](../../t-sql/statements/drop-database-transact-sql.md).
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1. Connect to the [!INCLUDE [ssDE](../../includes/ssde-md.md)].
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1. From the Standard bar, select **New Query**.
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1. Copy and paste the following example into the query window and select **Execute**. This example removes the `Sales` and `NewSales` databases.
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```sql
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USE master;
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DROP DATABASE Sales, NewSales;
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```
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<a id="FollowUp"></a>
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## Follow up: After deleting a database
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Back up the `master` database. If you need to restore `master`, any database that you deleted since the last backup of `master` still has references in the system catalog views and might cause error messages.
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<a id="Restrictions"></a>
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## Limitations
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You can't delete system databases. For more information, see [DROP DATABASE](../../t-sql/statements/drop-database-transact-sql.md).
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## Related content
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- [CREATE DATABASE](../../t-sql/statements/create-database-transact-sql.md)
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- [ALTER DATABASE (Transact-SQL)](../../t-sql/statements/alter-database-transact-sql.md)
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- [DROP DATABASE (Transact-SQL)](../../t-sql/statements/drop-database-transact-sql.md)
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- [Restore and recovery overview (SQL Server)](../backup-restore/restore-and-recovery-overview-sql-server.md)

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