Q: Is this the file that OSTicket uses to create OSTicket database?A: Yes.Q: Does the OSTicket database has PK/FK relationships between the tables,
since there is no foreign key constraint in the sql script?A: ost_user table id column is the users id. If this was '1'.If you look at ost_user_account or ost_user_email the user_id field for said user would be '1'.