存在两个结构相同的数据库表T1(col1,col2,col3)、T2(col1,col2,col3),写出一SQL语句将所有T1数据导入到T2表 (D )
A.select col1,col2,col3 from T1 INTO T2 (col1,col2,col3)
B.INSERT T1 (col1,col2,col3) INTO T2(col1,col2,col3)
C.insert into T2 (col1,col2,col3) AS select col1,col2,col3 from T1
D.insert into T2 (col1,col2,col3) select col1,col2,col3 from T1