Database Assignment Write down your answers in word document with file name highlighting your name, student number, and class. E.g “95002”+”_”+ “03 class”+”_”+”name”, like, “95002_03_Mike.doc”

Number 1（20%） Use one SQL statement to get the list of all the student names, whose every registered course has a score higher than 85. name　 course　 score Mike 　DataBase　　 81 Jane　 DataBase　　 86 Jane　　Math　　　 90 Tonny　DataBase 　　83 Tonny　 Math　　 100  

Number 2 （20%） Assume the student table has the following rows. Serial Number Sno Sname Cno Cname Score 1　　　　 2005001　Mike　0001　　　Math　　99 2　　　　 2005002　John　0001　　　Math　　89 3　　　　 2005001　Mike 0001　　　Math　　99 Use one SQL statement to delete the records whose attributes are redundant except for Serial number.

Number 3（30%） Assume a database has the following tables. Teacher(Tno, Tname) describes the information concerning teachers Student(Sno,Sname,Sage,Ssex) stores the information about students Course(Cno,Cname,Tno) is the course table SC(Sno,Cno,score) has the scores 1. Use one SQL statement to get the list of student names, who at least registers one common course with student with Sno “95005” 2. Use one SQL statement to get the complete list of students, who registers only one course. Print their student numbers and names and order the list by student number.  

3. Use one SQL statement to get the list of courses, each of which is registered by every student.