oracle - Tricky SQL for a report -

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i have table following 4 columns.

student_id   course_id   seq_no   date_taken

looking on sql oracle db following report.
possible report in single query using sub queries? 

course_id                           | cr150    ============================================= total students taken                | 5   students taken first course | 3   course  taken students      | 3   students taken 2 courses            | 2

you need nested query. inner query should use analytic query select student , course, how many courses student taking, , course in sequence. can use in of group query gives report want.

i give sql won't because homework problem, not mine. http://www.orafaq.com/node/55 may learn how analytic queries.


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