No, we cannot print decimals in type N because decimal places are not permitted with N
data type.
 Float Data Type: It cannot be declared in Parameters.
  Packed Number: It can be declared in Parameters. For e.g.
  PARAMETERS : A(4) TYPE P DECIMALS 2,
  B(4) TYPE P DECIMALS 2.
  DATA : C(4) TYPE P DECIMALS 2.
  C = A + B.
  WRITE : / 'THE SUM IS' , C.

  A step loop is a repeated series of field-blocks in a screen. Each block can contain one or more fields, and can extend over more than one line on the screen.
Step loops as structures in a screen do not have individual names. The screen can contain more than one step-loop, but if so, you must program the LOOP...ENDLOOPs in the flow logic accordingly. The ordering of the LOOP...ENDLOOPs must exactly parallel the order of the step loops in the screen. The ordering tells the system which loop processing to apply to which loop. Step loops in a screen are ordered primarily by screen row, and secondarily by screen column.
 Transaction TZ61 (development class SDWA) implements a step loop version of the table you saw in transaction TZ60.
  Static and Dynamic Step Loops : Step loops fall into two classes: static and dynamic. Static step loops have a fixed size that cannot be changed at runtime. Dynamic step loops are variable in size. If the user re-sizes the window, the system automatically increases or decreases the number of step loop blocks displayed. In any given screen, you can define any number of static step loops, but only a single dynamic one. Programming with static and dynamic step loops is essentially the same. You can use both the LOOP and LOOP AT statements for both types.
 Looping in a Step Loop : When you use LOOP AT with a step loop, the system automatically displays the step loop with vertical scroll bars. The scroll bars, and the updated (scrolled) table display, are managed by the system.

 There are three different functions used in SAP Script:  1) OPEN_FORM
 2) WRITE_FORM
 3) CLOSE_FORM
Parameters in Each Function:
 1) OPEN_FORM -
 Exporting
 Form
  Language
 2) WRITE_FORM -
  Exporting
  Element
  Window
 3) CLOSE_FORM

 There are 6 events in report:
 1) Initialization
 2) At Selection-Screen
 3) Start-of-Selection
 4) Get
 5) Get Late
 6) End-of-Selection
 7) Top-of-Page
 8) End-of-Page
 9) At Line Selection
 10) At User Command
 11) At PF (nn)

 There are four standard layouts in the SAP Script:
 1) Header
 2) Logo
 3) Main Window
 4) Footer

  SELECTION-SCREEN BEGIN OF BLOCK ABC WITH FRAME TITLE T01.
  SELECTION-SCREEN BEGIN OF SCREEN 500 AS WINDOW.
  CALL SELECTION-SCREEN 500 STARTING AT 10 10.

 The ABAP system fields are active in all ABAP programs. They are filled by the runtime environment, and you can query their values in a program to find out particular states of the system. Although they are variables, you should not assign your own values to them, since this may overwrite information that is important for the normal running of the program. However, there are some isolated cases in which you may need to overwrite a system variable. For example, by assigning a new value to the field SY-LSIND, you can control navigation within details lists.

 SAP Script - It is the integrated text management system of the SAP R/3 System. Two types - PC Editor & Line Editor.
  Reports - It is the way to display data fetched from database table onto screen or directly output it to a printer. Two types - Classical and Interactive.