Suppose that you have the following requirements for a university database that is used to keep track of students’ transcripts: The university keeps track of the students name, student number, current address, phone, birth date, gender, class (‘freshman’, ‘sophomore’, … , ‘graduate’), major department. Each department is described by a name, department code, office number and college. Each student can study more than a course that has a course name, description, course code, number of semester hours, level, and offering department. Finally, a grade record refers to a student, a particular course, and the total degree of all courses he has studied. Design the ERD for this database and implement the schema for this database application using the suitable SQL commands. First show all the functional dependencies that should hold among the database attributes. Then design relation schemas for the database that are each in 3NF with clarifying the conditions you have applied to reach the 3NF. Specify the key attributes of each relation. Note make any appropriate assumptions to render the specification complete.

a  social news website  is an  internet  website  that features  user-posted stories. such stories are ranked based on popularity, as voted on by other users of the site or by website administrators. users typically comment online on the news posts and these comments may also be ranked in popularity. since their emergence with the birth of  web 2.0, social news sites have been used to link many types of information, including news, humor, support, and discussion. all such websites allow the users to submit content and each site differs in how the content is moderated. on the  slashdot  and  fark  websites,  administrators  decide which articles are selected for the front page. on  reddit  and  digg, the articles that get the most votes from the community of users will make it to the front page. many social news websites also feature an online comment system, where users discuss the issues raised in an article. some of these sites have also applied their voting system to the comments, so that the most popular comments are displayed first. some social news websites also have a  social networking  function, in that users can set up a user profile and follow other users' online activity on the website.

a  social news website  is an  internet  website  that features  user-posted stories. such stories are ranked based on popularity, as voted on by other users of the site or by website administrators. users typically comment online on the news posts and these comments may also be ranked in popularity. since their emergence with the birth of  web 2.0, social news sites have been used to link many types of information, including news, humor, support, and discussion. all such websites allow the users to submit content and each site differs in how the content is moderated. on the  slashdot  and  fark  websites,  administrators  decide which articles are selected for the front page. on  reddit  and  digg, the articles that get the most votes from the community of users will make it to the front page. many social news websites also feature an online comment system, where users discuss the issues raised in an article. some of these sites have also applied their voting system to the comments, so that the most popular comments are displayed first. some social news websites also have a  social networking  function, in that users can set up a user profile and follow other users' online activity on the website.