Closes the master key of the current database.
Applies to: SQL Server (SQL Server 2008 through current version), SQL Database V12 (Preview in some regions).
Transact-SQL Syntax Conventions
CLOSE MASTER KEY
Takes no arguments.
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.
No permissions are required.
CLOSE MASTER KEY;