ABAP Select data from SAP table RJKSDCONTRDEMAND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKSDCONTRDEMAND
*  INTO TABLE @DATA(IT_RJKSDCONTRDEMAND2).
*--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_RJKSDCONTRDEMAND INDEX 1 INTO DATA(WA_RJKSDCONTRDEMAND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKSDCONTRDEMAND>-EKORG = 1.
<RJKSDCONTRDEMAND>-WERKS = 1.
<RJKSDCONTRDEMAND>-MED_PROD = 1.
<RJKSDCONTRDEMAND>-VBELN = 1.
<RJKSDCONTRDEMAND>-POSNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKSDCONTRDEMAND-ISSUE, sy-vline,
  WA_RJKSDCONTRDEMAND-PHASEMDL, sy-vline,
  WA_RJKSDCONTRDEMAND-PHASENBR, sy-vline,
  WA_RJKSDCONTRDEMAND-SPLIT, sy-vline,
  WA_RJKSDCONTRDEMAND-QUANTITY, sy-vline,
  WA_RJKSDCONTRDEMAND-QUANTITY1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKSDCONTRDEMAND 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_RJKSDCONTRDEMAND 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_RJKSDCONTRDEMAND INTO WA_RJKSDCONTRDEMAND.


*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 MED_PROD
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDCONTRDEMAND-MED_PROD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDCONTRDEMAND-MED_PROD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDCONTRDEMAND-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDCONTRDEMAND-VBELN.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDCONTRDEMAND-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDCONTRDEMAND-AUART.
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_RJKSDCONTRDEMAND_STR, 
EKORG TYPE STRING,
WERKS TYPE STRING,
MED_PROD TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
ISSUE TYPE STRING,
PHASEMDL TYPE STRING,
PHASENBR TYPE STRING,
SPLIT TYPE STRING,
QUANTITY TYPE STRING,
QUANTITY1 TYPE STRING,
QUANTITY2 TYPE STRING,
QUANTITY3 TYPE STRING,
QUANTITY4 TYPE STRING,
QUANTITY5 TYPE STRING,
QUANTITY6 TYPE STRING,
QUANTITY7 TYPE STRING,
QUANTITY8 TYPE STRING,
QUANTITY9 TYPE STRING,
UNIT TYPE STRING,
QUANTITYNEG TYPE STRING,
AUART TYPE STRING,
PSTYV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKSDCONTRDEMAND_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_RJKSDCONTRDEMAND_STR-EKORG sy-vline 
WA_RJKSDCONTRDEMAND_STR-WERKS sy-vline 
WA_RJKSDCONTRDEMAND_STR-MED_PROD sy-vline 
WA_RJKSDCONTRDEMAND_STR-VBELN sy-vline 
WA_RJKSDCONTRDEMAND_STR-POSNR sy-vline 
WA_RJKSDCONTRDEMAND_STR-ISSUE sy-vline 
WA_RJKSDCONTRDEMAND_STR-PHASEMDL sy-vline 
WA_RJKSDCONTRDEMAND_STR-PHASENBR sy-vline 
WA_RJKSDCONTRDEMAND_STR-SPLIT sy-vline 
WA_RJKSDCONTRDEMAND_STR-QUANTITY sy-vline 
WA_RJKSDCONTRDEMAND_STR-QUANTITY1 sy-vline 
WA_RJKSDCONTRDEMAND_STR-QUANTITY2 sy-vline 
WA_RJKSDCONTRDEMAND_STR-QUANTITY3 sy-vline 
WA_RJKSDCONTRDEMAND_STR-QUANTITY4 sy-vline 
WA_RJKSDCONTRDEMAND_STR-QUANTITY5 sy-vline 
WA_RJKSDCONTRDEMAND_STR-QUANTITY6 sy-vline 
WA_RJKSDCONTRDEMAND_STR-QUANTITY7 sy-vline 
WA_RJKSDCONTRDEMAND_STR-QUANTITY8 sy-vline 
WA_RJKSDCONTRDEMAND_STR-QUANTITY9 sy-vline 
WA_RJKSDCONTRDEMAND_STR-UNIT sy-vline 
WA_RJKSDCONTRDEMAND_STR-QUANTITYNEG sy-vline 
WA_RJKSDCONTRDEMAND_STR-AUART sy-vline 
WA_RJKSDCONTRDEMAND_STR-PSTYV sy-vline      INTO ld_text SEPARATED BY SPACE.

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