APEX 4.0 SQL ERROR -ORA-00942

Hi, I'm new to APEX. I'm having some trouble getting the following which creates a view to execute. I keep getting the ora-00942 table or view does not exist when it reaches the code in bold. When i look at the objects in APEX and SQL Developer the table is right in front of me. Any insight as to why i'm getting this error?
select ctt.firstname
, ctt.lastname
, ctt.contact_type
, ads.address_type
, ads.address_line1
, ads.address_line2
, ads.postcode
, ads.city
, ads.state
, ads.country
, aac.default_yn
, ctt.id
, ads.id
from app_contacts ctt
, app_addresses ads
, app_ads_ctt aac
where aac.ctt_id = ctt.id
and aac.ads_id = ads.id
The code is from a new book by Packt Publishing "APEX 4.0 Cookbook" which i'm using to get up to speed on APEX 4.0. I don't want to take any shortcuts. I'd really appreciate some help.
Thanks

Hi Ben,
Here is the complete statement and i've indicated in bold where the error occurs. The problem area is enclosed in asterisks when encapsulated by
create or replace view "APP_VW_CONTACTS" as
select ctt.firstname
, ctt.lastname
, ctt.contact_type
, ads.address_type
, ads.address_line1
, ads.address_line2
, ads.postcode
, ads.city
, ads.state
, ads.country
, aac.default_yn
, ctt.id
, ads.id
from app_contacts ctt
, app_addresses ads
, app_ads_ctt aac
where aac.ctt_id = ctt.id
and aac.ads_id = ads.id
This code generates the ora-00942 error (table or view does not exist) in SQL Developer and ora-00957 (duplicate column name) in APEX SQL WORKSHOP.
Your code,SELECT * FROM user_tables WHERE LOWER(table_name) = 'app_ads_ctt';
returns i row with a status of 'VALID' in SQL WORKSHOP.
Edited by: 844466 on Mar 16, 2011 4:24 AM

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933663 wrote:
Trying to drop the table inside the trigger but i'm unable to do it.
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Raghunadh wrote:
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Edited by: Bravid on Mar 2, 2012 11:56 AM

APEX 4.0 SQL ERROR -ORA-00942

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