{"id":1770,"date":"2014-01-06T11:00:44","date_gmt":"2014-01-06T16:00:44","guid":{"rendered":"http:\/\/sqlity.net\/en\/?p=1770"},"modified":"2014-11-13T13:22:06","modified_gmt":"2014-11-13T18:22:06","slug":"using-database-roles-database-level-security-management","status":"publish","type":"post","link":"https:\/\/sqlity.net\/en\/1770\/using-database-roles-database-level-security-management\/","title":{"rendered":"Using Database Roles for Database Level Security Management"},"content":{"rendered":"
\n

Introduction<\/h3>\n

\nOver the last two days I introduced you to server roles<\/a> and their member management<\/a>. Server roles can simplify the management of server level permissions. However, for database level permissions they are not the right tool.\n<\/p>\n

\nTo manage database level permissions SQL Server offers a similar solution: Database Roles. Any user that is a member of a database role inherits the permissions granted to that role.
\nThe only real difference between server roles and database roles is that database roles get defined in a particular database whereas server roles are defined for the entire server. Any member of a database role must be a principal defined in the same database that the role is defined in.\n<\/p>\n

Create a Database Role<\/h3>\n

\nThe statement to create a database role is very similar to the one to create a server role:\n<\/p>\n

\n[sql]\nCREATE ROLE role_name [ AUTHORIZATION database_principal ];
\n[\/sql]\n<\/div>\n

\nNotice that the word DATABASE<\/span> is not part of this statement. Historically (before SQL 2012), SQL Server had only nine fixed server roles, so any user-defined role was a database role. So the word database was implied and not called out. That is reflected in the syntax of that create statement.\n<\/p>\n

\nThe statement has to be executed while inside the database that you want to create the role in and role_name<\/span> has to be unique within that database. The AUTHORIZATION<\/span> clause is optional and specifies the owner of the new role.\n<\/p>\n

\nAfter the role is created, permissions can be set with GRANT<\/span>, DENY<\/span> or REVOKE<\/span> and members can be added with the ALTER ROLE<\/span> statement.\n<\/p>\n

Permissions<\/h3>\n

\nPermissions that can be granted to a role are all local to the database including for example CONNECT<\/span> to the database, CREATE SCHEMA<\/span> or SELECT<\/span> from a table. Any permission granted to the role will be effective for all its members.\n<\/p>\n

Fixed Database Roles<\/h3>\n

\nSQL Server comes with nine fixed database roles, the most prominent being db_owner<\/span>. Similar to the fixed server roles, the fixed database roles cannot be changed. Any attempt to grant or deny permissions to a fixed database role will result in an error.\n<\/p>\n

Summary<\/h3>\n

\nUser-defined database roles provide the same maintenance simplification on a database level that server roles offer on the server level. SQL Server comes with nine fixed database roles out of the box that address common job requirements. Permissions granted to a database role get inherited by every member of that role.\n<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Database roles simplify security management on a database level. With database roles we can grant or deny permissions to a group of database users. Find out how you can use database roles in your environment.<\/p>\n

[more…]<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[29,5,34],"tags":[18,57,50,38,58,15],"class_list":["post-1770","post","type-post","status-publish","format-standard","hentry","category-fundamentals","category-general","category-security","tag-best-practice","tag-database-roles","tag-permission","tag-security-2","tag-security-management","tag-sql-server"],"acf":[],"yoast_head":"\nUsing Database Roles for Database Level Security Management - sqlity.net<\/title>\n<meta name=\"description\" content=\"Database roles simplify security management on a database level. 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