全部复制select * into NewTable from OldTable
复制结构select * into NewTable from OldTable where 1=2
复制数据insert into NewTable (y1,y2,y3) select y1,y2,y3 from OldTable
全部复制select * into NewTable from OldTable
复制结构select * into NewTable from OldTable where 1=2
复制数据insert into NewTable (y1,y2,y3) select y1,y2,y3 from OldTable