ABAP Select data from SAP table RJBTKM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJBTKM table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to RJBTKM. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the RJBTKM table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_RJBTKM TYPE STANDARD TABLE OF RJBTKM,
      WA_RJBTKM TYPE RJBTKM,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <RJBTKM> TYPE RJBTKM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJBTKM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJBTKM
  INTO TABLE IT_RJBTKM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJBTKM
*  INTO TABLE @DATA(IT_RJBTKM2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_RJBTKM INDEX 1 INTO DATA(WA_RJBTKM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJBTKM ASSIGNING <RJBTKM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJBTKM>-RADIOA1 = 1.
<RJBTKM>-RADIOA2 = 1.
<RJBTKM>-RADIOB1 = 1.
<RJBTKM>-RADIOB2 = 1.
<RJBTKM>-RADIOC1 = 1.

ENDLOOP.

LOOP AT IT_RJBTKM INTO WA_RJBTKM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJBTKM-RADIOC2, sy-vline,
  WA_RJBTKM-TEXT1, sy-vline,
  WA_RJBTKM-TEXT2, sy-vline,
  WA_RJBTKM-TEXT3, sy-vline,
  WA_RJBTKM-TEXT4, sy-vline,
  WA_RJBTKM-TEXT5, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJBTKM you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_RJBTKM TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_RJBTKM INTO WA_RJBTKM.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RJBTKM_STR, 
RADIOA1 TYPE STRING,
RADIOA2 TYPE STRING,
RADIOB1 TYPE STRING,
RADIOB2 TYPE STRING,
RADIOC1 TYPE STRING,
RADIOC2 TYPE STRING,
TEXT1 TYPE STRING,
TEXT2 TYPE STRING,
TEXT3 TYPE STRING,
TEXT4 TYPE STRING,
TEXT5 TYPE STRING,
TEXT6 TYPE STRING,
TEXT7 TYPE STRING,
INPUT1_1 TYPE STRING,
INPUT1_2 TYPE STRING,
INPUT1_3 TYPE STRING,
INPUT1_4 TYPE STRING,
INPUT2_1 TYPE STRING,
RKALRG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJBTKM_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_RJBTKM_STR-RADIOA1 sy-vline 
WA_RJBTKM_STR-RADIOA2 sy-vline 
WA_RJBTKM_STR-RADIOB1 sy-vline 
WA_RJBTKM_STR-RADIOB2 sy-vline 
WA_RJBTKM_STR-RADIOC1 sy-vline 
WA_RJBTKM_STR-RADIOC2 sy-vline 
WA_RJBTKM_STR-TEXT1 sy-vline 
WA_RJBTKM_STR-TEXT2 sy-vline 
WA_RJBTKM_STR-TEXT3 sy-vline 
WA_RJBTKM_STR-TEXT4 sy-vline 
WA_RJBTKM_STR-TEXT5 sy-vline 
WA_RJBTKM_STR-TEXT6 sy-vline 
WA_RJBTKM_STR-TEXT7 sy-vline 
WA_RJBTKM_STR-INPUT1_1 sy-vline 
WA_RJBTKM_STR-INPUT1_2 sy-vline 
WA_RJBTKM_STR-INPUT1_3 sy-vline 
WA_RJBTKM_STR-INPUT1_4 sy-vline 
WA_RJBTKM_STR-INPUT2_1 sy-vline 
WA_RJBTKM_STR-RKALRG sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.