relational database analysis ?

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i have table courses and students in my analysis every course has multiple groups that determine by user and every group has multiple students determine also by user
how can i do this in sqlserver database analyses

i created course table and students table and tabl5 as junction table between two table
but groups i cannot handle it any one can help me in this please??

Posted 30-Mar-12 12:35pm

nagiub2007

Updated 30-Mar-12 17:05pm

Pranit Kothari

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Saral S Stalin 31-Mar-12 3:13am

Can you please rephrase your question? I am clueless about what you want.

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OriginalGriff · Answer 1 · 2012-03-30T21:17:00

Solution 1

All your need is a Groups table, with an ID and a description.
You then add a GroupID field to the student table and set it as a foreign key.
You can then have multiple students in any one group.
If you also need students to be in multiple groups, then you need an extra table instead of the GroupID field, which contains the StudentID and the GroupID to allow multiple students in multiple groups.

Posted 30-Mar-12 21:17pm

OriginalGriff

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nagiub2007 31-Mar-12 3:19am

ok courses also have multiple groups what about that?

OriginalGriff 31-Mar-12 3:35am

Same thing as students. Either a new table if they need multiple-multiple or a field if it is multiple-single.