In table1 students lectures data are stored as:
We need a query that allows each student to preset a limited number of lectures on a specific subject. For example each student can provide only two lectures on a subject and any more lectures on the same subject presented by him will not be counted. In the above example records 7 8 9 and 11 will not be shown in the query.
Thank you
Code:
ID studentname lecturesubject lecturedate
1 steve politics 3/2/2013
2 jack politics 3/2/2013
3 steve math 5/2/2013
4 steve politics 7/2/2013
5 jack politics 8/2/2013
6 steve math 8/2/2013
7 jack politics 9/2/2013
8 steve politics 10/2/2013
9 steve math 11/2/2013
10 steve physics 12/2/2013
11 jack politics 15/2/2013Thank you