Sophie's Data Orchard

dbo is always seen as a SQL server table's schema. dbo stands for database owner. The dbo schema is the default schema of every database. When user created with  CREATE USER   T-SQL command have dbo as their default schema. The dbo schema is owned by the dbo user account.  SQL server also provides other pre-defined schemas that have the same names as the built-in db users and roles: db_accessadmin, db_backupoperator, db_datareader, db_datawriter, db_ddladmin, db_denydatareader, db_denydatawriter, db_owner, db_securityadmin . These exist for backward compatibility. The recommendation is to not use them for user objects.  User can drop the schemas that have the same names as the fixed database roles - unless they're already in use, in which case the drop-command will simply return an error and block the drop of the used schema. For example: IF EXISTS (SELECT * FROM sys.schemas WHERE name = N'db_accessadmin') DROP SCHEMA [db_accessadmin] GO If user drops the...