Lesson 3 Practice — Employee Directory

Create:

ZCL_ABAP_L03_PRACTICE_###

Model

Define TY_EMPLOYEE with:

id
first_name
last_name
department
salary
active

Choose a table type that makes unique id lookup efficient.

Data

Create at least eight employees with VALUE.

Tasks

1. print every employee;
2. read one employee by ID;
3. test a missing ID safely;
4. print only IT employees;
5. increase one employee salary;
6. remove one employee by key;
7. count active employees;
8. print the final table.

Reasoning

1. Why did you choose your table category?
2. What does the table key guarantee?
3. Why can a direct table expression fail?
4. What is the difference between INTO and ASSIGNING in a loop?
5. Why are these operations not persistent database CRUD?

Checklist

• Structured type created.
• Explicit table category and key.
• VALUE used.
• Key lookup used.
• Safe missing-row handling.
• Filtered loop used.
• Update and delete performed in memory.