How to Alter Authorisation on Schema SQL Server
In SQL Server, altering authorisation on a schema is a crucial task that ensures the right users have the appropriate permissions to access and manipulate the schema’s objects. Whether you need to grant or revoke permissions for a specific user or role, understanding the process is essential. This article will guide you through the steps to alter authorisation on a schema in SQL Server.
Firstly, it is important to identify the schema for which you need to alter the authorisation. You can find the schema name by querying the system views or by using SQL Server Management Studio (SSMS). Once you have the schema name, you can proceed with the following steps:
1. Connect to the SQL Server instance using SSMS or another database management tool.
2. Navigate to the database containing the schema you want to alter.
3. In the Object Explorer, expand the “Security” folder, followed by the “Schemas” folder.
4. Right-click on the schema name and select “Properties” from the context menu.
This will open the “Schema Properties” dialog box. Here, you can manage the authorisation for the schema. Here are the steps to alter authorisation:
1. In the “Schema Properties” dialog box, click on the “Permissions” tab.
2. You will see a list of users and roles that have permissions on the schema. To grant or revoke permissions, select the appropriate user or role from the list.
3. To grant a permission, check the box next to the permission you want to grant (e.g., SELECT, INSERT, UPDATE, DELETE, REFERENCES, CREATE, ALTER, etc.).
4. To revoke a permission, uncheck the box next to the permission you want to revoke.
5. After making the necessary changes, click “OK” to save the changes.
If you want to grant or revoke permissions for multiple users or roles at once, you can use the following SQL commands:
“`sql
— Grant permissions
GRANT SELECT ON SCHEMA::[schema_name] TO [user_or_role];
— Revoke permissions
REVOKE SELECT ON SCHEMA::[schema_name] FROM [user_or_role];
“`
Replace `[schema_name]` with the actual name of the schema and `[user_or_role]` with the name of the user or role you want to grant or revoke permissions for.
In some cases, you may want to grant or revoke permissions on all objects within a schema. To do this, you can use the following SQL commands:
“`sql
— Grant permissions on all objects in the schema
GRANT [permission] ON SCHEMA::[schema_name] TO [user_or_role];
— Revoke permissions on all objects in the schema
REVOKE [permission] ON SCHEMA::[schema_name] FROM [user_or_role];
“`
Replace `[permission]` with the specific permission you want to grant or revoke, such as `SELECT`, `INSERT`, `UPDATE`, etc.
In conclusion, altering authorisation on a schema in SQL Server is a straightforward process that can be done using SSMS or SQL commands. By following the steps outlined in this article, you can ensure that the right users have the appropriate permissions to access and manipulate the schema’s objects.
