Problems creating a view that's a union of two other views

Question

Hello all you Oracle folks,
I'm pretty new to this Oracle thing, coming over from SQL Server where life was simple. Here's my issue;
I am trying to create a view that is a union of two other views.
I can run the top SELECT of this view (before the UNION) and it works no problem, and I can run the bottom SELECT (after the UNION) and it also works with no problem. I can run a DESC on both views involved, and those also work without any problem.
When I try to run the SQL all together though, I get this;
SQL> CREATE materialized view trkmaster.cmp_pmr_union refresh force ON demand AS SELECT 'CMR'
2 "Ticket_System", "Id_col" "Ticket", "Submitter", "Submit_Date", "Submit_To",
3 "Actual_Activity_Start_Date" "Start_Date", "Actual_Activity_Start_Time" "Start_Time",
4 "Actual_Activity_End_Date" "End_Date", "Actual_Activity_End_Time" "End_Time",
5 "Close_Date", "Risk_Level" "Level", "Activity_Type" "Type", "Activity_Category"
6 "Category", "Hardware_Name" "Hardware", "Platform", "Application_Name" "Application",
7 "Completion_Status" "Status", "Area_CMPO" "Owner", "Outage_Minutes" "Total_Outage_Mins",
8 "Acorde_Downtime__in_minutes_" "Acorde", "Atlas", "Corporate_Email_Downtime"
9 "Corporate_Email", "Data_Warehouse_Downtime__In_M6" "Data_Warehouse",
10 "E__Commerce_Downtime__In_Mins_" "ECommerce", "FMDS__FIVR_" "FMDS_FIVR",
11 "FMDS_Hotels_Downtime" "FMDS_Hotels", "FMDS_Internet_Downtime" "FMDS_Internet",
12 "FMDS_Resv__Ctr_Downtime" "FMDS_Resv_Ctr", "GDS_Downtime__In_Mins_" "GDS",
13 "HI_Online_Downtime__In_Mins_" "HI_Online", "Holidex__CRO____In_Mins_" "Holidex_CRO",
14 "Holidex__Hotels____In_Mins_" "Holidex_Hotels", "Hyperion_Essbase",
15 "IHGMail_Downtime__In_Mins_" "IHG_Mail", "Kofax_Downtime__in_minutes_" "Kofax",
16 "PeopleSoft_Fin_Downtime_In_Mi1" "Peoplesoft", "PERFORM__HIRO____In_Mins_" "Perform_HIRO"
17 FROM CMP.CHRQVCHANGE_MANAGEMENT_REQUEST UNION SELECT 'PMR' "Ticket_System", "Id_col"
18 "Ticket", "Submitter", "Submit_Date", "Submit_To", "Problem_Start_Date" "Start_Date",
19 "Problem_Start_Time" "Start_Time", "Problem_End_Date" "End_Date", "Problem_End_Time"
20 "End_Time", "Close_Date", "Severity_Level" "Level", "Problem_Type" "Type",
21 "Occurrence_Type" "Category", "Hardware_Name" "Hardware", "Platform", "Application_Name"
22 "Application", "Close_Code" "Status", "Problem_Owner" "Owner",
23 "TOTAL_Outage_Time__If_Any_" "Total_Outage_Time", "Acorde_Downtime__in_minutes_" "Acorde",
24 "Atlas", "Corporate_Email_Downtime" "Corporate_Email", "Data_Warehouse_Downtime__In_M6"
25 "Data_Warehouse", "E__Commerce_Outage_Time__Mins_" "ECommerce", "FMDS__FIVR_" "FMDS_FIVR",
26 "FMDS_Hotels_Outage_Time__In_M5" "FMDS_Hotels", "FMDS_Internet_Outage_Time__Mi4"
27 "FMDS_Internet", "FMDS_Resv__Ctr_Outage_Time__M3" "FMDS_Resv_Ctr",
28 "GDS_Outage_Time__Mins_" "GDS", "HI_Online_Outage_Time__In_Min2" "HI_Online",
29 "Holidex__CRO____In_Mins_" "Holidex_CRO", "Holidex__Hotels____In_Mins_" "Holidex_Hotels",
30 "Hyperion_Essbase", "IHG_Mail_Outage_Time__In_Mins_" "IHG_Mail",
31 "Kofax_Downtime__in_minutes_" "Kofax", "PeopleSoft_Fin_Downtime_In_Mi1" "Peoplesoft",
32 "PERFORM__HIRO____In_Mins_" "Perform_HIRO" FROM PMR.CHRQVPROBLEM_MANAGEMENT;
"PERFORM__HIRO____In_Mins_" "Perform_HIRO" FROM PMR.CHRQVPROBLEM_MANAGEMENT
ERROR at line 32:
ORA-00942: table or view does not exist
The 'CMR' and 'PMR' as Ticket_System is me trying to assign a literal as a newly created column.
All the data types match from one view to the other.
If I switch around the SQL so the 'CMR' view is at the bottom and the 'PMR' view is at the top, it still errors out on the 'PMR' view as not existing, even though I can DESC it and run the SELECT using that view. A coworker thinks it could be some kind of view alias issue (?).
I know the view exists, and I can access it no problem. Any ideas why this isn't working? It seems so simple, I could do this in a heartbeat in SQL Server. I have very few hairs left to rip out, so any help would be appreciated.

Answer 1

SELECT 'CMR' "Ticket_System",
"Id_col" "Ticket",
....you have wrapped up your columns with a double quotes and use an alias. i tried the same thing
but using a different table and it does not work.
SQL> desc emp;
Name                                      Null?    Type
EMPNO                                     NOT NULL NUMBER(4)
ENAME                                              VARCHAR2(10)
JOB                                                VARCHAR2(9)
MGR                                                NUMBER(4)
HIREDATE                                           DATE
SAL                                                NUMBER(7,2)
COMM                                               NUMBER(7,2)
DEPTNO                                    NOT NULL NUMBER(2)
SQL> select "empno" "employee_number"
  2    from emp;
select "empno" "employee_number"
ERROR at line 1:
ORA-00904: "empno": invalid identifier
SQL> how were you able to run the top level of your SQL before the UNION clause? did you run it thru some tools
other than SQL*Plus?