We can use function module "F4IF_INT_TABLE_VALUE_REQUEST" for generate value request by ABAP report.

Example

*** Screen Flow ***

PROCESS ON VALUE-REQUEST.

  FIELD scn_kokrs MODULE create_value_request.

*** ABAP Editor ***

MODULE create_value_request INPUT.

DATA: BEGIN OF itab_request OCCURS 0,

kokrs LIKE TKA01-KOKRS,

bezei LIKE TKA01-BEZEI,

END OF itab_request.

SELECT KOKRS BEZEI
       FROM TK

About statement "READ TABLE", we can generate code for read key dynamic as below:

DATA: BEGIN OF itab OCCURS 0,
       fld1(2),
       fld2(2),
       fld3(10),
       fld4 TYPE i,
     END OF itab,
     wa_tab LIKE itab,
     gv_key1(4) TYPE C VALUE ’FLD1’,
     gv_key2(4) TYPE C VALUE ’FLD2’. 
...
...
...
  
  READ TABLE itab INTO wa_tab
                  WITH KEY (gv_key1) = ’AA’
                           (gv_key2) = ’BB’.

Operator     Description
CO           Contains Only
CN           Contains Not Only
CA           Contains Any
NA           Contains Not Any
CS           Contains String
NS           Contains No String
CP           Matches Pattern
NP           Not Match Pattern

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