Can't show the record from ' Select Count(*)' syntax

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I want to show a record that have a duplicate 'slot.id_slot' value by syntax "slot.id_slot,count(*) 'Jumlah Bentrok '". But the record doesn't show when my syntax is :

SQL

SELECT  Jadwal.No_Jadwal, Kuliah.No,Doseen.Nama_Dosen , slot.id_slot,count(*) 'Jumlah Bentrok '
FROM Jadwal INNER JOIN Kuliah ON Jadwal.No = Kuliah.No INNER JOIN slot ON Jadwal.id_slot = slot.id_slot INNER JOIN  Doseen ON Kuliah.Id_Dosen = Doseen.Id_Dosen
group by Jadwal.No_Jadwal, Kuliah.No,Doseen.Nama_Dosen ,slot.id_slot having count(*) > 1

But, the record shows when my syntax becomes this:

SQL

SELECT [id_slot], count(*) 'Jumlah Bentrok'
  FROM [FKIP-UNILAK].[dbo].[Jadwal]
group by [id_slot] having count(*) > 1

What is the problem?
I have to show the record from my first syntax :(

Posted 17-May-11 9:45am

Abdi tombang

Updated 17-May-11 9:47am

Fabio V Silva

v2

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Pete O'Hanlon · Answer 1 · 2011-05-17T09:55:00

If the record isn't showing, the problem has to be with your inner join statements. Basically, if all of your inner joins don't match, you won't get data back. If I were you, I'd analyse the data you think you should be getting back to see if you should be using inner joins or left/right joins.

Wonde Tadesse · Answer 2 · 2011-05-17T15:06:00

Solution 3

First make a view for your join. Then perform the count operation. This will help you to divide and conquer your query.

Good luck.

Posted 17-May-11 15:06pm

Wonde Tadesse

wizardzz · Answer 3 · 2011-05-17T10:14:00

Solution 2

I think it may be due to your underlying data. Since you have 3 inner joins, could you start with none of them, and incrementally add joins one at a time? Maybe you will be able to see which join is breaking it?

Posted 17-May-11 10:14am

wizardzz