A.master B.model C.tempdb D.msdb
A.dbo B.db_owner(db角色) C.sysadmin(服務器角色) D.public(db角色)
A.CREATE TABLE AUTHORS ON Prpducts(name varchar(50),IDsmallint) B.ALTER DATABASE products ADD TABLE Authors(name varchar(50),IDsmallint) C.CREATE TABLE Products.Authors(name varchar(50),IDsmallint) D.Create TABLE Products.Authors(name,ID)