CLOSE MASTER KEY (Transact-SQL)
 

THIS TOPIC APPLIES TO: yesSQL Server (starting with 2008) yesAzure SQL Database yesAzure SQL Data Warehouse yesParallel Data Warehouse

Closes the master key of the current database.

Topic link icon  Transact-SQL Syntax Conventions

Syntax

CLOSE MASTER KEY
-- Azure SQL Data Warehouse and Parallel Data Warehouse
CLOSE MASTER KEY
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 AdventureWorks2012;
CLOSE MASTER KEY;
GO
Examples: Azure SQL Data Warehouse Public Preview and Parallel Data Warehouse
USE master;
OPEN MASTER KEY DECRYPTION BY PASSWORD = '43987hkhj4325tsku7';
GO 
CLOSE MASTER KEY;
GO