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GRANT OWNERSHIP | Snowflake Documentation

GRANT OWNERSHIP

Transfers ownership of an object or all objects of a specified type in a schema from one role to another role. Role refers to either a role or a database role.

OWNERSHIP is a special type of privilege that can only be granted from one role to another role; it cannot be revoked. For more details, see Overview of Access Control.

This command is a variation of GRANT <privileges> … TO ROLE.

See also:

REVOKE <privileges> … FROM ROLE

Syntax

For object types that are not an instance of a class:

GRANT OWNERSHIP
  { ON {
            <object_type> <object_name>
          | ALL <object_type_plural> IN { DATABASE <database_name> | SCHEMA <schema_name> }
       }
    | ON FUTURE <object_type_plural> IN { DATABASE <database_name> | SCHEMA <schema_name> }
  }
  TO { ROLE <role_name> | DATABASE ROLE <database_role_name> }
  [ { REVOKE | COPY } CURRENT GRANTS ]

Copy

For an instance of a class:

GRANT OWNERSHIP
  ON  <class_name> <instance_name>
  TO { ROLE <role_name> | DATABASE ROLE <database_role_name> }
  [ { REVOKE | COPY } CURRENT GRANTS ]

Copy

Required parameters
object_name

Specifies the identifier for the object on which you are transferring ownership.

object_type

Specifies the type of object.

One of the following:

object_type_plural

Plural form of object_type (e.g. TABLES, VIEWS).

Note that bulk grants on pipes and data metric functions are not allowed.

role_name

The identifier for the role to which the object ownership is transferred.

database_role_name

The identifier for the database role to which the object ownership is transferred. If the identifier is not fully qualified (in the form of db_name.database_role_name, the command looks for the database role in the current database for the session.

Ownership is limited to objects in the database that contains the database role.

Optional parameters
[ REVOKE | COPY ] CURRENT GRANTS

Specifies whether to remove or transfer all existing outbound privileges on the object when ownership is transferred to a new role:

Note

Outbound privileges refer to any privileges granted on the individual object whose ownership is changing.

When transferring ownership of a role, current grants refers to any roles that were granted to the current role (to create a role hierarchy). If ownership of a role is transferred with the current grants copied, then the output of the SHOW GRANTS command shows the new owner as the grantor of any child roles to the current role.

REVOKE

Enforces RESTRICT semantics, which require removing all outbound privileges on an object before transferring ownership to a new role. This is intended to protect the new owning role from unknowingly inheriting the object with privileges already granted on it.

After transferring ownership, the privileges for the object must be explicitly re-granted on the role.

Note that the REVOKE keyword does not work when granting ownership of future objects of a specified type in a database or schema to a role (using GRANT OWNERSHIP ON FUTURE <object_type>).

COPY

Transfers ownership of an object along with a copy of any existing outbound privileges on the object. After the transfer, the new owner is identified in the system as the grantor of the copied outbound privileges (that is, in the SHOW GRANTS output for the object, the new owner is listed in the GRANTED_BY column for all privileges). As a result, any privileges that were subsequently re-granted before the change in ownership are no longer dependent on the original grantor role.

Revoking a privilege using REVOKE <privileges> … FROM ROLE with the CASCADE option does not recursively revoke these formerly dependent grants. The grants must be explicitly revoked.

This parameter requires that the role that executes the GRANT OWNERSHIP command have the MANAGE GRANTS privilege on the account.

Default: None. Neither operation is performed on any existing outbound privileges.

Note

A GRANT OWNERSHIP statement fails if existing outbound privileges on the object are neither revoked nor copied.

Usage notes Examples Roles

Revoke all outbound privileges on the mydb database, currently owned by the manager role, before transferring ownership to the analyst role:

REVOKE ALL PRIVILEGES ON DATABASE mydb FROM ROLE manager;

GRANT OWNERSHIP ON DATABASE mydb TO ROLE analyst;

GRANT ALL PRIVILEGES ON DATABASE mydb TO ROLE analyst;

Copy

Note that this example illustrates the default (and recommended) multi-step process for transferring ownership.

In a single step, revoke all privileges on the existing tables in the mydb.public schema and transfer ownership of the tables (along with a copy of their current privileges) to the analyst role:

GRANT OWNERSHIP ON ALL TABLES IN SCHEMA mydb.public TO ROLE analyst COPY CURRENT GRANTS;

Copy

Grant ownership on the mydb.public.mytable table to the analyst role along with a copy of all current outbound privileges on the table:

GRANT OWNERSHIP ON TABLE mydb.public.mytable TO ROLE analyst COPY CURRENT GRANTS;

Copy

Database roles

In a single step, revoke all privileges on the existing tables in the mydb.public schema and transfer ownership of the tables (along with a copy of their current privileges) to the mydb.dr1 database role:

GRANT OWNERSHIP ON ALL TABLES IN SCHEMA mydb.public
  TO DATABASE ROLE mydb.dr1
  COPY CURRENT GRANTS;

Copy

Grant ownership on the mydb.public.mytable table to the mydb.dr1 database role along with a copy of all current outbound privileges on the table:

GRANT OWNERSHIP ON TABLE mydb.public.mytable
  TO ROLE mydb.dr1
  COPY CURRENT GRANTS;

Copy

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