Procedure Syntax Error Question

Question

Hi all, new here but working on an intro database application project and am getting stuck on this procedure, any feedback would be greatly appreciated
create or replace procedure "PROJ_NEW_TRANSACTION"
(arg_transid IN NUMBER,
arg_totalcost IN NUMBER,
arg_pmtmethod IN VARCHAR2,
arg_amtpaid IN NUMBER,
arg_register IN NUMBER,
arg_customer IN NUMBER)
is
ws_availcash number;
insufficient_change exception;
begin
SELECT avail_cash into ws_availcash FROM proj_register WHERE arg_register = reg_id;
IF (arg_amtpaid - arg_totalcost) > ws_availcash
THEN raise insufficient_change;
END IF;
INSERT into proj_transaction values (arg_transid, arg_totalcost, arg_pmtmethod, arg_amptpaid, arg_register, arg_customer);
EXCEPTION
WHEN insufficient_change THEN
raise_application_error(-20000, 'Insufficient change in register');
end;
This is the syntax to the procedure, I have 3 tables (proj_transaction, proj_customer, proj_register) and am trying to get this procedure to ensure there is enough change in the register, and if not raise the exception and display the message indicated. I have to add more aspects to the procedure later, but I need to know why this isn't working. I keep getting the errors (Line 19, Position 81, PL/SQL: ORA-00984: column not allowed here) and (Line 19, Position 1, PL/SQL: SQL Statement ignored) -- Line 19 starts with the INSERT statement
These are the tables I am using:
create table proj_transaction
(trans_id      number(3) primary key,
total_cost      number(6,2) not null,
pmt_method      varchar2(6) check(pmt_method in('Cash', 'Credit')),
amt_paid     number(6,2) not null,
register     number(3) references proj_register(reg_id),
customer     number(3) references proj_customer(cust_id));
create table proj_register
(reg_id      number(3) primary key,
avail_cash     number(6,2) not null,
accounts_rec     number(6));
create table proj_customer
(cust_id     number(3) primary key,
money_amt      number(6,2),
cust_name     varchar(15));

Answer 1

Welcome to the OTN forums.
As advice for a new user, please do not duplicate posts. {thread:id=2220607}
And this question is better placed in the {forum:id=75} forum. Please try to get a feel for the different forums and their typical topics/discussions.
If you had looked up the error message, you would have found:
>
ORA-00984 column not allowed here
Cause: A column name was used in an expression where it is not permitted, such as in the VALUES clause of an INSERT statement.
Action: Check the syntax of the statement and use column names only where appropriate.