A01 - Lesson A - START HERE

Lesson A reads a Sales file to create the simplest report: Sales by customer number.

The input file is the Sales file which is sorted into customer number order.
The output file is a report giving total sales for each customer number. This report is not useful for at least these reasons:

1. The report has “customer number” but not “customer name” or any other details of the customer.
2. The report gives nothing about the products purchased.

Why bother with this report? For these reasons:

1. This simple report teaches the first skills you need in our product. This is a great place to start.
2. This report is modified in later lessons to be much more useful. With enough modifications, this report can be compared to the reports in the demo of this product.

Lesson A consists of these topics:

• Topic A02 - Views and phases
  Any solution requires you know what “views” are and what “phases” are.
• Topic A03 - Define a report
  Learn how to describe a report in the workbench. After reading about the ideas you take action to create the report for Lesson A.
• Topic A04 - Prepare JCL for Lesson A
• Topic A05 - Run solution for Lesson A
• Topic A06 - Inside solution for Lesson A
  See how the solution for Lesson A works. This knowledge is essential for later lessons.
• Topic A07 - VDP file for Lesson A
• Topic A08- JLT file for Lesson A
• Topic A09 - XLT file for Lesson A
• Topic A10 - Logic Table codes for Lesson A
• Topic A11 - MR95 Reports for Lesson A
• Topic A12 - Lesson A achievements

---

Next: A02 - Views and phases