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 [SOLVED]Querry question
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nechtmarrie
Starting Member

Belgium
24 Posts

Posted - 05/16/2013 :  07:03:21  Show Profile  Reply with Quote
Okay so i got an existing querry that creates a list of unused staff from a task list.

SELECT Naam FROM Chauffeurs WHERE NOT EXISTS (SELECT Naam FROM Planlijst WHERE Naam = Chauffeurs.Naam AND Datum = @Datum)

I would also like to remove any staff that is schedualed as sick or vacation.

I use the sollowing querry to determine of a person is sick on a specific date:

SELECT Naam, Reden
FROM Ziektes_Verlof
WHERE (@Datum BETWEEN Start_Datum AND Eind_Datum) OR
(Start_Datum <= @Datum) AND (Eind_Datum IS NULL)

Is there any way to combine these 2 querrys so that i can get a list of unused staff that is not reported as sick or on vaction?

Thnx for ur help,
Necht

Edited by - nechtmarrie on 05/16/2013 08:02:06

visakh16
Very Important crosS Applying yaK Herder

India
52326 Posts

Posted - 05/16/2013 :  07:22:25  Show Profile  Reply with Quote

SELECT Naam FROM Chauffeurs WHERE NOT EXISTS (SELECT Naam FROM Planlijst WHERE Naam = Chauffeurs.Naam AND Datum = @Datum)
AND NOT EXISTS (SELECT 1
FROM Ziektes_Verlof
WHERE ((@Datum BETWEEN Start_Datum AND Eind_Datum) OR
(Start_Datum <= @Datum) AND (Eind_Datum IS NULL))
AND Naam = Chauffeurs.Naam 
)



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nechtmarrie
Starting Member

Belgium
24 Posts

Posted - 05/16/2013 :  08:01:36  Show Profile  Reply with Quote
So you can just use 2 Subquerys?
I always thought this was limited to just one.

Thanks visakh, uv been a real help with my few questions :)
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visakh16
Very Important crosS Applying yaK Herder

India
52326 Posts

Posted - 05/16/2013 :  08:04:38  Show Profile  Reply with Quote
you're welcome

Glad that I could help you out

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