I tried dozen of times but not getting my required output i dont know please reply

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I tried dozen of times but not getting my required output i dont know please reply

Table Structure in MS Access
Sno Auto Number
Sch_Date Date/Time
Session Number
Course Text
Faculty_Code Text


Select * from Table_Name in MS Access ;
Sno Sch_Date Session Course Faculty_Code
1 11/01/2013 1 REO GS
2 11/01/2013 1 REO VB
3 12/01/2013 1 REO NR


from the above output for 11/01/2013 (sch_date),1stsession and course faculty code is GS,VB (faculty_Code) only
for 12/01/2013 (sch_date),1stsession and course faculty code is NR (faculty_Code) only.

when i try this below query it is not matching with select * from Table_Name query.

But when i try the below query for 11/01/2013 (sch_Date),1st session and course all the faculty code are coming to my below output why.please correct my below
query what is the mistake.how can i do?

SELECT Tb_Sch_TIme_Table.Sch_Date, Tb_Sch_TIme_Table.Session, Tb_Sch_TIme_Table.Course, 
Conc("Faculty_Code","Session",[Session],"Tb_Sch_TIme_Table") AS Faculty_Code
FROM Tb_Sch_TIme_Table
GROUP BY Tb_Sch_TIme_Table.Course, [Sch_Date], [Session];

Output for above query as follows MS Access;


Sch_Date Session Course Faculty_Code
11/01/2013 1 REO GS, NR, VB
12/01/2013 1 REO GS, NR, VB

Kindly please correct my above query.how can i do.