# 1. Goal
A sales analyst wants to know which products sell well. Show each product with
the number of sales items and the total sales quantity. Show only products whose
total sales quantity is at least 100. A report and an OData service will read the
result, so the calculation must be in the database, in a CDS view.

# 2. Open questions
None.

# 3. Context
- Table {{P}}PROD (product master), package $TMP. Key: PROD_ID (CHAR 10).
  Fields: PROD_NAME (CHAR 40).
- Table {{P}}SALE (sales item), package $TMP. Key: SALE_ID (CHAR 10), ITEM_NO (INT4).
  Fields: PROD_ID (CHAR 10), QUANTITY (INT4).

# 4. Contract
- Create the CDS view entity {{P}}I_PROD_SALES in package $TMP.
- Elements, with these names: PROD_ID (key), PROD_NAME, ITEM_COUNT, TOTAL_QTY.
- No authorization check (#NOT_REQUIRED).

# 5. Business rules
1. Show one row for each product that has at least one sales item and whose total
   sales quantity is at least 100. Do not show a product with no sales item.
   Do not show a product whose total sales quantity is less than 100.
2. ITEM_COUNT is the number of sales items of the product.
3. TOTAL_QTY is the sum of QUANTITY of all sales items of the product.
4. PROD_NAME is the name of the product.

# 6. Constraints
- Release target: 7.58.
- Out of scope: do not change {{P}}PROD and {{P}}SALE.
- Coding standards: Clean ABAP.

# 7. Acceptance
- The view is active and has no syntax error.
- The hidden tests pass.
- Write ABAP Unit tests with CL_CDS_TEST_ENVIRONMENT in a global test class.