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Re: Simple Question on WHERE

From: Thomas Kyte <tkyte_at_us.oracle.com>
Date: 1998/03/14
Message-ID: <3509e0aa.1482792@192.86.155.100>#1/1

A copy of this was sent to "RS" <sugarman_at_erols.com> (if that email address didn't require changing) On Fri, 13 Mar 1998 17:58:50 -0500, you wrote:

>Hello,
>
>I'm using a product called Data Junction to transfer records from an Oracle
>7.3 server to an MS SQL 6.0 server. The oracle table has around 1/2 million
>rows of which I want around 10k. Whenever I try to use a WHERE clause I get
>an error stating I have selected an invalid column. I know the column is
>typed correctly and I'm connecting to the server because I can attach to the
>table and down load a sample set of records when I don't use a WHERE.
>
>While I'm familiar with MS SQL, I know nothing about Oracle and think I'm
>missing a keystroke or two. If someone could please tell me the correct
>syntax is for an Oracle WHERE ... AND ... statement I would greatly
>appreciate it.
>
>Thank you in advance.
>

I'm gonna guess on this one (the query in question would help)....

In MS SQL:
where column = "Constant"

is the same as:
where column = 'Constant'

In Oracle (and ANSI sql in general) these two statements are very different.

where column = "Constant" means where the database column column is equal to the database column named (with case preserved) Constant.

where column = 'Constant' means where the database column column is equal to the STRING Constant.

You probably are using double quotes, use single quotes and it'll work.  

Thomas Kyte
tkyte_at_us.oracle.com
Oracle Government
Herndon VA  

http://govt.us.oracle.com/ -- downloadable utilities  



Opinions are mine and do not necessarily reflect those of Oracle Corporation  

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