What is open sql vs native sql ?

What is the Size of the internal tables ?

What is the difference between end-of-page and end-of- selection?

If you write a write statement after end-of-selection, will that be triggered ?

How to create a button in selection screen ?

How to create a check box/option button in a list?

Difference between top-of-page and top-of-page during at line- selection?

What is the use of SLIS type pool in Alv reports ?

IBM,

What is performance tuning ?

what is the difference between hashed & sorted internal tables?

what is the difference between standard and sorted internal tables? (in performance wise)

Difference between internal table and a dictionary table?

Can you create an internal table dynamically?(at run time)

when you are using 2 internal table in program, you have decided to use for all entries statement to retrieve data but unfortunately there are no records in the first internal table. What will be the result? (2nd internal table contains records).

In a loop of an internal table, what is the use of at first & at last statements?