sys-column-master-keys-transact-sql.md

title	sys.column_master_keys (Transact-SQL) | Microsoft Docs
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ms.date	06/10/2016
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sys.column_master_keys (Transact-SQL)

[!INCLUDEtsql-appliesto-ss2016-asdb-xxxx-xxx_md]

Returns a row for each database master key added by using the CREATE MASTER KEY statement. Each row represents a single column master key (CMK).

Column name	Data type	Description
name	sysname	The name of the CMK.
column_master_key_id	int	ID of the column master key.
create_date	datetime	Date the column master key was created.
modify_date	datetime	Date the column master key was last modified.
key_store_provider_name	sysname	Name of the provider for the column master key store that contains the CMK. Allowed values are: MSSQL_CERTIFICATE_STORE – If the column master key store is a Certificate Store. A user-defined value, if the column master key store is of a custom type.
key_path	nvarchar(4000)	A column master key store-specific path of the key. The format of the path depends on the column master key store type. Example: 'CurrentUser/Personal/'<thumbprint> For a custom column master key store, the developer is responsible for defining what a key path is for the custom column master key store.

Permissions

Requires the VIEW ANY COLUMN MASTER KEY permission.

[!INCLUDEssCatViewPerm] For more information, see Metadata Visibility Configuration.

See Also

CREATE COLUMN MASTER KEY (Transact-SQL)
Security Catalog Views (Transact-SQL)
Always Encrypted (Database Engine)
sys.column_encryption_key_values (Transact-SQL)