SAP Tech Made Easy - SELECT-OPTIONS is a keyword used in SAP ABAP programming. Select-Options is statement which is used to define two input fields so that users can enter a range
AMDP: Avoiding FOR ALL ENTRIES and pushing calculation to Database Layer | SAP Blogs
Displaying and Changing Internal Tables
Select Query On Internal Table in ABAP | SAPCODES
Working with Complex Internal Tables
Process an internal table by using group by (ABAP 740) | by Ebrahim Hatem | Medium