We can find out how many entries of internal table by apply statement "DESCRIBE".

Example

DATA: it_tab TYPE TABLE OF BKPF WITH HEADER LINE,
      tot_lines TYPE i.
...
...
DESCRIBE TABLE it_tab LINES tot_lines.

Or you can apply statement ’LOOP AT’ and count it.

Example

LOOP AT it_tab.
  tot_lines = tot_lines + 1.
ENDLOOP.

DATA: BEGIN OF wa_tab1,
        fld1(4) VALUE ’FLD1’,
        fld2(4) VALUE ’FLD2’,
        fld3(4) VALUE ’FLD3’,
        fld4(4) VALUE ’FLD4’,
        fld5(4) VALUE ’FLD5’,
      END OF wa_tab1,
      BEGIN OF wa_tab2,
        fld1(4),
        fld2(4),
        fld3(4),
        fld4(4),
      END OF wa_tab2.
************* Move Corresponding *************
MOVE-CORRESPONDING wa_tab1 to wa_tab2.
************ End Move Corresponding **********
******************** Move ********************
MOVE: wa_tab1-fld1 to wa_tab2-fld1,
      wa_tab1-fld2 to wa_tab2-fld2,
      wa_tab1-fld3 to wa_tab2-fld3,
      wa_tab1-fld4 to wa_tab2-fld4.
****************** End Move ******************     

Field     Description
COLNO     the current column
LINNO     the current line 
  

Option          Description
COLOR n         Specific background colors
INTENSIFIED     Intensified the background color
INVERSE         Swap background and foreground color
HOTSPOT         Effect when mouse pointer and click
INPUT           Generate input field
RESET           Reset formats. The format will be backed to default format.

You can apply statement "NEW-PAGE" for insert page break in your report.

Syntax

NEW-PAGE [NO-TITLE or WITH-TITLE] [NO-HEADING or WITH-HEADING].

Example

REPORT ZTEST01.
TABLES: SPFLI.
PARAMETERS: p_carrid LIKE SPFLI-CARRID.
START-OF-SELECTION.
  ...
  ...
  ...
END-OF-SELECTION.
  ...
  ...
  NEW-PAGE.
  ...
  ...

BDC is a method for transfer data in SAP. Data that you want it to be operated by BCD must have structure as bellows:

BDCDATA Structure

Field Name     Type        Description
PROGRAM        CHAR(40)    Program Name
DYNPRO         NUMC(4)     Screen No.
DYNBEGIN       CHAR(1)     Begin a screen (If yes then equal ’X’)
FNAM           CHAR(132)   Field Name
FVAL           CHAR(132)   Field Value