【简答题】We can see how the product life cycle works by looking at the introduction of instant coffee. When it was introduced, most people did not like it as much as 'regular' coffee and it took several years ...
【单选题】销售部和财务部在两栋不同的楼里。两个部门由一个2兆位的网络连接。并且都使用SQL Server 2005。销售部在一个名为DB1的数据库里记录所有的销售事务。DB1包含380张表,大小为10GB。财务部为做报表可以只读方式访问DB1里的4张表。财务部会全天进行查询并需要尽可能最新的数据。财务部的用户告诉你报表执行非常缓慢。为优化网络容量,你的部门决定为财务部提供此四张表的副本。现在,你需要提供这些...