Foreign Key
Foreign Key:
It is used mainly to create relationship between tables.
The foreign key (MentorID) in the Course table is to create a relationship with the Mentor table MentorID (primary key).
The foreign key (CourseID) in the Student table is to create a relationship with the Course table CourseID (primary key).
OWASP WebGoat 6 - Improper Error Handling - Fail Open Authentication Scheme
In this example, an error in the exception handling routine could allow anyone to login without the need to key in a password.
executing .jar file
to execute a .jar file.
make sure you have JDK in your machine then just issue
java -jar xxxx.jar
command
Entity Relationship Diagram - Many-to-Many relationship
If you have an ERD with a many-many relationship, something is wrong.
Break the many-many relationship up.
Refer to the diagram
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