SELECT CASE
WHEN KOLOM3 IS NULL THEN 
WHEN KOLOM2 IS NULL THEN KOLOM1 
ELSE KOLOM2
END AS AMOUNT
FROM TABEL


 
-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED]
On Behalf Of Joshua Jackson
Sent: Tuesday, September 05, 2006 6:18 PM
To: [email protected]
Subject: [indo-oracle] select menggunakan case expression
 
Dear all,

Saya ingin mengambil data dari tiga kolom dalam satu tabel yang sama
namun melibatkan case expression.

kolomnya sbb:

kolom1 | kolom2 | kolom3

logikanya adalah:

Kalau kolom3 kosong maka amount = kolom2
kalau kolom2 kosong maka amount = kolom1

Row dalam kolom1 tidak pernah kosong

Saya coba dengan query sbb namun tidak berhasil:
SELECT CASE
WHEN KOLOM3 IS NULL THEN KOLOM2
WHEN KOLOM2 IS NULL THEN KOLOM1
ELSE KOLOM1
END AS AMOUNT
FROM TABEL

namun tidak berhasil seperti yang saya harapkan.

Ada yang pernah mengalami kasus seperti ini? Masukannya sangat
membantu saya.

Terima kasih
 


[Non-text portions of this message have been removed]



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