SQL Server Role Type

	role name secret	permission
role type	db_owner	grants all database privileges
role type	db_accessadmin	Manage the zookeeper used in the database, you can add or exclude tokens, groups, or login tags to a database.
role type	db_ddladmin	create, modify, or delete a DB object in a database
role type	db_datareader	all data records of any table in the database can be searched
role type	db_datawriter	ability to insert, modify, and delete data from any table in a local dB
role type	db_securityadmin	Manage Roles and DB role members, rights to all rights to the image, the right to publish a sentence, and the right to access the database
role type	db_denydatareader	disable metadata from retrieving data from any table in the DB
role type	db_denydatawriter	do not modify the data records of any table in the DB