RE: Create view using CAST to change datatype
- From: "Mercadante, Thomas F" <thomas.mercadante@xxxxxxxxxxxxxxxxx>
- To: "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 19 Mar 2004 10:09:54 -0500
Saira,
This worked:
CREATE OR REPLACE VIEW tomview
AS
SELECT
col1, col2,
cast(NVL(RTRIM(col1),0) AS NUMBER) col1_numb
FROM tomtest
Values for the TOMTEST table were (' ',1);
SELECT * FROM tomview
returns
values of (' ', 1, 0)
And I agree wih Igor - why are you using CAST rather than to_number?
Tom Mercadante
Oracle Certified Professional
-----Original Message-----
From: Saira Somani-Mendelin [mailto:saira_somani@xxxxxxxxx]
Sent: Friday, March 19, 2004 10:03 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: RE: Create view using CAST to change datatype
Tom,
That's a great suggestion, but how could I do that in a view? Perhaps
like this? CAST(RTRIM(OB_OID) AS NUMBER) OB_OID... would that work?
Here is the view definition:
CREATE OR REPLACE VIEW V_ITH_F
AS
(SELECT
ITH_RID,
TRANSACT,
SKU,
PKG,
FROM_LOC,
TO_LOC,
TRANSACT_STT,
WAVE,
CAST(OB_OID AS NUMBER) OB_OID,
OB_TYPE,
CAST(IB_OID AS NUMBER) IB_OID,
IB_TYPE,
OB_LNO,
IB_LNO,
ACT_QTY,
WHSE,
FROM
ITH_F);
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Mercadante, Thomas F
Sent: March 19, 2004 9:54 AM
To: 'oracle-l@xxxxxxxxxxxxx'
Subject: RE: Create view using CAST to change datatype
Saira,
My first idea would be to trim the blanks from the column thus
converting
the value to a null before casting. Would that work? What happens with
the
Cast statement when a null value is involved? Can you show the Create
View
Sql?
thanks
Tom Mercadante
Oracle Certified Professional
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