创建表及插入数据 If OBJECT_ID(N'Demo') Is Not Null Begin Drop Table Demo End Else Begin Create Table Demo( Area ), Name )) Insert Into Demo(Area,Name) Values(N'北京',N'张三'), (N'上海',N'李四'), (N'深圳',N'王五'), (N'深圳',N'钱六'), (N'北京',N'赵七'), (N'北京','Tom'), (N'上海','Amy