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ORA-00904 error on date and View question

Hello experts;

I'm taking a class that will hopefully prepare me for the oracle certification exam.  I am using oracle version 9i.   To give you some background, the assignment is as follows:  

I've gone through questions 1-4 and i'm now on question 5

1. Create a user without any role or system or object privileges.
2. create role called "connection". give the role privileges, including connect, resource.
3. create another role called "object", give the role rights to access scott.emp and scott.dept and allow to erform select, insert, update and delete.
4. Grant the user created in 1 with the roles created in 2 & 3.
5. log in as the new user. insert two records into scott.emp table.
6. create a view based on scott.emp and scott.dept.
7. query scott.emp and scott.dept using the view created in 6.

Q5:  I'm trying to insert records to scott.emp table this is my sql
insert into scott.emp(empno, ename, job, mgr, hiredate, sal, comm, deptno)
values ('77935','Norton', 'SALESMAN','7654','29-OCT-06',6000, null, '30');

I get the following error:
ORA-00904: "HIREDATE" invalid identifier.  

Q6:  What is a view, and how do you create one?

What am I doing wrong?
TIA,

Lisa
0
AnneYourPointIs
Asked:
AnneYourPointIs
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3 Solutions
 
rbrookerCommented:
Hi,

invalid identifier is usually a spalling mistake in a column name, could it be "hire_date"?

creating a view is :
create or replace view my_view_name as
select * from scott.emp .....

good luck. :)
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AnneYourPointIsAuthor Commented:
no, the column name is HIREDATE
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rbrookerCommented:
Ok, hiredate is hiredate.

but :

ORA-00904: string: invalid identifier
Cause: The column name entered is either missing or invalid.
Action: Enter a valid column name. A valid column name must begin with a letter, be less than or equal to 30 characters, and consist of only alphanumeric characters and the special characters $, _, and #. If it contains other characters, then it must be enclosed in double quotation marks. It may not be a reserved word.

this would suggest that a column is misspelled, or you have an extra one.  can you check the other columns?
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Naveen KumarProduction Manager / Application Support ManagerCommented:
do a desc of scott.emp and see whether the column names/data types are ok or not.

desc scott.emp

Thanks
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Naveen KumarProduction Manager / Application Support ManagerCommented:
in my scott.emp i have empno as number (4 ) but you are trying to insert '77935'. Your value could be too large though i am not sure of your table structure.

If your scott.emp is also number(4), then insert some other empno which is <=9999

Thanks
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anand_2000vCommented:
Are you doing a
Begin
insert into scott.emp(empno, ename, job, mgr, hiredate, sal, comm, deptno)
values ('77935','Norton', 'SALESMAN','7654','29-OCT-06',6000, null, '30');
end;
/
if yes then  try after removing the begin and end. it might also be that you  are using some tool other than SQlplus for giving the insert command

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ravindran_eeeCommented:
Hope this link will help u in understanding about views in oracle..

http://www.psoug.org/reference/views.html

Try the below query.. Am assuming that u are using the same standard SCOTT schema.. I have made some small changes to the query.. Let me know whether this helps..
INSERT INTO scott.emp(empno, ename, job, mgr, hiredate, sal, comm, deptno)
VALUES ('7793','Norton', 'SALESMAN','7654',TO_DATE('29-OCT-06','DD-MON-YYYY'),6000, NULL, 30);
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anand_2000vCommented:
At times Oracle gives out the wrong messages(Don't askme how, I have seen this happen) Can you do a
desc scott.emp first and get back to us.
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