The event Load-of-praogram is triggered each time when a program is called.
Simple ABAP reports are relatively basic and display data in a straightforward manner, while interactive ABAP reports provide a more dynamic and interactive user experience, allowing users to manipulate and explore the displayed data in various ways.
In ABAP, there are total 7 types of reports. They are: • Classical. • Interactive. • Logical Database. • ABAP query. • ALV Reports (ALV stands for ABAP List Viewer) • Report Writer/Report Painter. • Views (There are different types of views also)
Each program can produce upto 21lists. Out of which, 1 basic list and 20 secondary lists.
• At line-selection • At user-command • At pf-status • Top-of-page during line selection
The function code at user-command can only contain a maximum of 20 characters.
Internal tables are a standard data type object which exists only during the runtime of the program. They are used to perform table calculations on subsets of database tables and for re-organising the contents of database tables according to user need.
Always Pass by Value.
RFC is Remote Function call so it cannot access the values with Pass by reference
SELECT- SINGLE*- => It selects the First Matching row satisfying the Where Condition While SELECT* UP TO 1ROW- => selects all the Records satisfying the given Condition and then it applies aggregation as well as orders and returns the First Record according to the Records.
