Attendance Records - Bulk Insert In Student Database

I have a csv that contains attendance records that I get daily from a 3rd party grade book solution. I need to import directly into the attend table in our student database.

Code:
Attend File-"1112","0021","404550","20120402","ABU","2300000","06","05"

The file is setup as follows, School Year, school number, student_id, absence date, absence code, course number, section number.

I need to check the student schedule to see if they are scheduled for that class when the import runs. So if they had a schedule change in the middle of the day it won't post attend to a dropped class.

I have done something similar to this before with the way I export teachers out to our grade book. I have it check the master schedule to see if the teacher is teaching at least one class, that way it won't export tutors and office staff to the grade book. I used the script below to do that but not sure who to apply it to a bulk insert.

Code:
Script Used to export teachers note last four lines, checks master
USE [GSchool]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON

[Code] ....

Secondly I need to check the date of the record and overwrite a record if one already exists for that exact course and section for that student, I need this because if they make changes to a previous day from absence un excused to excused I need to get rid of the unexcused by overwriting it.

One more thing that would be nice but is optional, is there a way to send log of errors on the import via email?