Simple mix-ups result in plenty of Oracle mistakes. The ORA-00984 serves as the error resulting from a column not allowed in a particular area. When the user attempts to issue a SQL statement including a column name not permitted, there will be the chances of the column not allowed here error.
There may be the chances that the user could correct the INSERT statement with the utilization of the character value.
There is a need for the user to include a column name. Rewrite the INSERT statement with a sub-select.
Alternatively, there will be an option for rewriting the INSERT statement with a sub-select.
The ORA 00984: column not allowed occurs as it is not allowed in the VALUES clause of the insert query. The VALUES clause must always have the values stored in the table. In varchar or date data type values, ensure that you use single quotes. In the Oracle insert statement, make sure that the character string or date value must stay enclosed by single quotes. If the quotations VALUES clause is missing, it starts working as a column name.
The chances of the error are there when the single quotation in the string value is missing in the VALUES clause. If the double quotation mark finds use in the insert statement for a string, the error ORA-00984: column not allowed here is going to happen.
One of the major solutions that you can consider is that if the VALUES clause of the insert statement has a column name, make sure that you delete it and replace it with a value.
When it happens that the single quote is missing for a string or date value, at such a point, the insert statement will fail to recognize the date value.
ora-00984: column not allowed here solution is easy to follow when you follow the above-mentioned steps. With that, you can easily solve the issues and continue working.