[Webinar] Streamline your web hosting managementRegister Today

x
?
Solved

Database Relations - Class - Students - Grades

Posted on 2016-10-28
7
Medium Priority
?
88 Views
Last Modified: 2016-10-29
Hi,
I'm putting an access database together where I can track students assignments and grades but Im having trouble deciding which is the best designing solution.

This is the starting point...
Tables:
-  Classess       (id, classname)
- Students       (id, classid)  
- Assigments (id, classid, date)

I want to assign each class assignments students will be doing during the year...This is the starting poing of what Im trying to achieve.
Class      Assignments          Students
-------      -----------------           --------------
Y7            Exam1                    Stu1 - A
                                                Stu2 - B
                Exam 2                   Stu1 - A
                                                 Stu1 - B
Y9            Exam 1
Y8            Exam1
                Exam 2

My first though is I cant store all the grades in the table students as it will potentially will have lots of duplicate records for each students for different assigments.

Any starting point will be appreciated! Thanks!
0
Comment
Question by:arcross
  • 3
  • 3
7 Comments
 
LVL 56

Expert Comment

by:Ryan Chong
ID: 41863614
My first though is I cant store all the grades in the table students as it will potentially will have lots of duplicate records for each students for different assigments.
you also need to think the scenarios in which same student retake the same assignment in different trimester?

as a quick start, you probably can have a db design like this:

- Courses        (id, coursename, status)
-  Classess      (id, courseid, classname, termyear, status)
- Students      (id, studentname, age, status)  
- Assigments (id, classid, date, status)
- StudentAssignment (id, assignmentid, studentid, mark, status)
0
 
LVL 8

Author Comment

by:arcross
ID: 41863620
Thanks for your answer Ryan.
Im uploading a screenshot of what I have so farCapture.PNG
0
 
LVL 56

Expert Comment

by:Ryan Chong
ID: 41863626
ok, so based on what you have, I may come out with something like this, but you may or may not adopt accordingly.

- Courses        (id, coursename, status)
-  Classess      (id, courseid, classname, termyear, status)
- Students      (id, studentname, age, status)  
- Assigments (id, classid, date, status)
- StudentAssignment (id, assignmentid, studentid, markingdate, mark, status)
- Grades (id, markrangebegin, markrangeend, grade)

You may probably need a View to join tables: StudentAssignment  and Grades so that we know what grade a student get for his/her assignment if you don't want to put the grade into table: StudentAssignment  

but I'm not sure how you define "Strength" for your classes and students.
0
The new generation of project management tools

With monday.com’s project management tool, you can see what everyone on your team is working in a single glance. Its intuitive dashboards are customizable, so you can create systems that work for you.

 
LVL 8

Author Comment

by:arcross
ID: 41863628
Thanks again :)

Strength will be the next step.

Each student for each assignment will have at least one strength
Let'say ...
Assigment 1 -
             Student 1 - Grade A  
                         Strengths 1  - Accurate description
                         Strength 2 -  Range of vocabulary
                               ... etc..
            Student 2 -  Grade B
                           Strengths 1  - Accurate description
                       
and so on...
0
 
LVL 56

Assisted Solution

by:Ryan Chong
Ryan Chong earned 1000 total points
ID: 41863631
ok, perhaps this is a good start for you

- Courses        (id, coursename, status)
-  Classess      (id, courseid, classname, termyear, status)
- Students      (id, studentname, age, status)  
- Assigments (id, classid, date, status)
- StudentAssignment (id, assignmentid, studentid, markingdate, mark, status)
- Grades (id, markrangebegin, markrangeend, grade)
- Strengths (id, strength, status)
- StudentAssignmentStrength (id, studentassignmentid, strengthid)
0
 
LVL 8

Assisted Solution

by:arcross
arcross earned 0 total points
ID: 41863802
Thanks,

Could you show me how would these tables be related on a diagram??
0
 
LVL 31

Accepted Solution

by:
hnasr earned 1000 total points
ID: 41863872
but Im having trouble deciding which is the best designing solution.

The best design is to start with the final report handed to the student.
This topic lies under normalization.

Assuming each report's info as one record, list say four records.
Next try to normalize the table to lead you to the needed related tables.

Start a new access database.
Create a table listing all the fields you want to appear on a student report.
Ex.
StudentID, StudentName, Class1, Subject1, Grade1, Subject2, Grade2, InstructorName, ...

Without fully completing the above record field names, it will be hard to design the datadase, and even much harder to maintain it.

The way you are following now, may require a redesign when you come to the reporting phase. That is when  you need to unnormalize the data, in different related tables, to produce the report.

Search the net for normalizing databases.
Here are two results:
https://support.microsoft.com/en-us/kb/283878
https://msdn.microsoft.com/en-us/library/cc505842.aspx
0

Featured Post

Take Control of Web Hosting For Your Clients

As a web developer or IT admin, successfully managing multiple client accounts can be challenging. In this webinar we will look at the tools provided by Media Temple and Plesk to make managing your clients’ hosting easier.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In a use case, a user needs to close an opened report by simply pressing the Escape (Esc) key. This can be done by adding macro code in Report_KeyPress or Report_KeyDown event.
Implementing simple internal controls in the Microsoft Access application.
Access reports are powerful and flexible. Learn how to create a query and then a grouped report using the wizard. Modify the report design after the wizard is done to make it look better. There will be another video to explain how to put the final p…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
Suggested Courses
Course of the Month8 days, 11 hours left to enroll

611 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question