Revise in top-down manner, from Tester -> DAO -> Entity layer -> DB
Testers to be reviewed (trace from Tester -> DAO and Entities):
- UserRegistration.java
- GetUserDetailsById.java
- DisplayAllUserDetails.java
- DisplayUsersByRoleAndDate.java
- DisplayLastNamesByRole.java
- DisplayNameAndDobByRole.java
- ChangePassword.java
- ApplyDiscount.java
- DeleteUserDetailsById.java