MySQL的表和视图我如此设计会不会影响效率？

Create t_Table1(F_ID Int Primary Key, f_Name CHAR(32));

Create t_Table2(F_ID Int Primary Key, f_Name CHAR(32), f_T1ID Int);

Create t_Table3(F_ID Int, f_Type CHAR(1), f_TypeE CHAR(1), f_T2ID Int);

因为我要统计t_Table3, 按照不同的t_Table3.f_Type统计f_TypeE,本来应该这样：

Select t1.f_Name, t2.f_Name, count(t3.f_TypeE), count(t31.f_TypeE), count(t32.f_TypeE) from t_Table1 t1, t_Table2 t2 Left Join(t_Table3 t3, t_Table3 t31, t_Table3 t32) On (t3.f_T2ID = t2.F_ID AND t31.f_T2ID = t2.F_ID And t32.f_T2ID = t2.f_ID) Where t3.f_TypeE = 'A' And t31.f_TypeE = 'B' And t32.f_TypeE = 'C' And t2.f_T1ID = t1.F_ID Group By t1.f_Name, t2.f_Name;

我觉得这样可能效率不行，所以在数据库中添加了一个视图：
Create View v_CountSome As Select F_T2ID, f_TypeE, Count(f_TypeE) As CountE from t_Table3 Group by f_ID, f_TypeE;
最后从数据库中读取的时候：

Select t1.f_Name, t2.f_Name, t3.CountE, t4.CountE, t5.CountE from t_Table1, t_Table2 left join (v_CountSome t3, v_CountSome t4, v_CountSome t5) on (t2.f_T2ID = t_Table2.f_ID And t3.f_T2ID = t_Table2.f_ID And t4.f_T2ID = t_Table2.f_ID) Where t1.f_ID = t2.f_T1ID And t3.f_TypeE = 'A' And t4.f_TypeE = 'B' And t5.f_TypeE = 'C';

请问哪种方式的效率更好？

谢谢

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但是，另外一想，如果还需要加入其它条件的话
t_Table是根据其它的条件筛选出数据再统计，
而采用Select * from v_Coun