This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. Use ALTER AUTHORIZATION instead.
Is the login ID of the new owner of the current database. login is sysname, with no default. login must be an already existing SQL Server login or Windows user. login cannot become the owner of the current database if it already has access to the database through an existing user security account within the database. To avoid this, drop the user within the current database first.
[ @map= ] remap_alias_flag
The remap_alias_flag parameter is deprecated because login aliases have been removed from SQL Server. Using the remap_alias_flag parameter does not cause an error but has no effect.
Requires TAKE OWNERSHIP permission on the database. If the new owner has a corresponding user in the database, requires IMPERSONATE permission on the login, otherwise requires CONTROL SERVER permission on the server.