CLOSE MASTER KEY (Transact-SQL)

Чланак
09/03/2024

Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW)

Closes the master key of the current database.

Transact-SQL syntax conventions

Syntax

CLOSE MASTER KEY

Note

This syntax is not supported by serverless SQL pool in Azure Synapse Analytics.

Arguments

Takes no arguments.

Remarks

This statement reverses the operation performed by OPEN MASTER KEY. CLOSE MASTER KEY only succeeds when the database master key was opened in the current session by using the OPEN MASTER KEY statement.

Permissions

No permissions are required.

Examples

USE AdventureWorks2022;  
CLOSE MASTER KEY;  
GO

Examples: Azure Synapse Analytics and Analytics Platform System (PDW)

USE master;  
OPEN MASTER KEY DECRYPTION BY PASSWORD = '43987hkhj4325tsku7';  
GO   
CLOSE MASTER KEY;  
GO

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