I dont really understand if you have a problem with starting Oracle or do you have problems with the syntax. If you encounter the problem with syntax, I can help you.
All DBMSs have keywords when you either create a database or a table, therefore use the following syntax:
If you create a database, you have to start with the keyword "create" like this;
create database database_name;
For creating tables you should use this syntax, but for this one I will use a practical example whereby I will create a Student table with the following colums (Stud_Number(primary key), Stud_Name, Date_Of_Birth, Course, Monthly_Installment).
The syntax will be as follows:
Create table Students
(Stud_Number int primary key not null,
I hope if you use this method it will help you and reply back to let me know if the solution I have given you have worked.