ABAP Select data from SAP table RJKSDWWW03 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJKSDWWW03 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 RJKSDWWW03. 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 RJKSDWWW03 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_RJKSDWWW03 TYPE STANDARD TABLE OF RJKSDWWW03,
      WA_RJKSDWWW03 TYPE RJKSDWWW03,
      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: <RJKSDWWW03> TYPE RJKSDWWW03.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJKSDWWW03.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJKSDWWW03
  INTO TABLE IT_RJKSDWWW03.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKSDWWW03
*  INTO TABLE @DATA(IT_RJKSDWWW032).
*--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_RJKSDWWW03 INDEX 1 INTO DATA(WA_RJKSDWWW032).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJKSDWWW03 ASSIGNING <RJKSDWWW03>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKSDWWW03>-RETURNNUMBER = 1.
<RJKSDWWW03>-MEDIAPRODUCT = 1.
<RJKSDWWW03>-MEDIAISSUE = 1.
<RJKSDWWW03>-COPYNUMBER = 1.
<RJKSDWWW03>-PUBLICATIONDATE = 1.

ENDLOOP.

LOOP AT IT_RJKSDWWW03 INTO WA_RJKSDWWW03.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKSDWWW03-RETURNBEGIN, sy-vline,
  WA_RJKSDWWW03-RETURNEND, sy-vline,
  WA_RJKSDWWW03-MATNR, sy-vline,
  WA_RJKSDWWW03-TITLE, sy-vline,
  WA_RJKSDWWW03-QUANTITY, sy-vline,
  WA_RJKSDWWW03-UNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKSDWWW03 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_RJKSDWWW03 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_RJKSDWWW03 INTO WA_RJKSDWWW03.


*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.

*Conversion exit MATN1, internal->external for field MEDIAPRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDWWW03-MEDIAPRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDWWW03-MEDIAPRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MEDIAISSUE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDWWW03-MEDIAISSUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDWWW03-MEDIAISSUE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDWWW03-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDWWW03-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDWWW03-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDWWW03-UNIT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_RJKSDWWW03_STR, 
RETURNNUMBER TYPE STRING,
MEDIAPRODUCT TYPE STRING,
MEDIAISSUE TYPE STRING,
COPYNUMBER TYPE STRING,
PUBLICATIONDATE TYPE STRING,
RETURNBEGIN TYPE STRING,
RETURNEND TYPE STRING,
MATNR TYPE STRING,
TITLE TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKSDWWW03_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_RJKSDWWW03_STR-RETURNNUMBER sy-vline 
WA_RJKSDWWW03_STR-MEDIAPRODUCT sy-vline 
WA_RJKSDWWW03_STR-MEDIAISSUE sy-vline 
WA_RJKSDWWW03_STR-COPYNUMBER sy-vline 
WA_RJKSDWWW03_STR-PUBLICATIONDATE sy-vline 
WA_RJKSDWWW03_STR-RETURNBEGIN sy-vline 
WA_RJKSDWWW03_STR-RETURNEND sy-vline 
WA_RJKSDWWW03_STR-MATNR sy-vline 
WA_RJKSDWWW03_STR-TITLE sy-vline 
WA_RJKSDWWW03_STR-QUANTITY sy-vline 
WA_RJKSDWWW03_STR-UNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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