How to enable cross-database ownership chaining?
You can set cross-database ownership chaining for individual databases using the SET clause of the ALTER DATABASE statement. If you are creating a new database, you can set the cross-database ownership chaining option for the new database using the CREATE DATABASE statement.
What is a DBO database?
dbo stands for database owner, but the dbo user account is not the same as the db_owner fixed database role, and the db_owner fixed database role is not the same as the user account that is recorded as the owner of the database. The dbo user owns the dbo schema.
What is cross data join in tableau?
Tableau 10 comes with a great new feature called Cross-Database Join, which allows us to cross data between different sources easily and intuitively. This feature works well enough in one-to-one relationships, but unwanted asterisks pop up when we want to perform a join in one-to-many relationships.
How do I check if OLE Automation is enabled in SQL Server?
To determine if “Ole Automation Procedures” option is enabled, execute the following query: EXEC SP_CONFIGURE ‘show advanced options’, ‘1’; RECONFIGURE WITH OVERRIDE; EXEC SP_CONFIGURE ‘Ole Automation Procedures’;
When does a cross database ownership chain form?
Therefore, if you have an object in one database which refers to an object in a second database, both databases are configured for database ownership chaining (or it is configured at the server level), and both objects have the same owner, then a cross-database ownership chain will form.
How does cross database chaining work in SQL Server?
If we turned ON at the server level, cross-database chaining is enabled for all databases on that SQL Server instance, regardless of individual database settings and we can’t restrict it at the database level. The following statement turns ON cross-database ownership chaining at the server level.
Can a database owner not be mapped to a login?
The exception is that the owner of each object is ultimately mapped to a login, if that is possible (it must be for a cross database ownership chain to form). In SQL Server 2005 and above, it is possible to create a database user that does not map to a login.
What makes an ownership chain different from a normal chain?
Just as with a normal ownership chain, security is checked on the first object, but not on the second. There is one catch, however, which causes it to be different from a normal ownership chain. The login querying the first object must also have access into the second database.