ABAP Select data from SAP table RJKSDCQPQUAN_WD_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKSDCQPQUAN_WD_ALV
*  INTO TABLE @DATA(IT_RJKSDCQPQUAN_WD_ALV2).
*--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_RJKSDCQPQUAN_WD_ALV INDEX 1 INTO DATA(WA_RJKSDCQPQUAN_WD_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKSDCQPQUAN_WD_ALV>-VBELN = 1.
<RJKSDCQPQUAN_WD_ALV>-POSNR = 1.
<RJKSDCQPQUAN_WD_ALV>-MEDIAPRODUCT = 1.
<RJKSDCQPQUAN_WD_ALV>-MEDIA_PRODUCT_DESCR = 1.
<RJKSDCQPQUAN_WD_ALV>-SERVICETYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKSDCQPQUAN_WD_ALV-SERVICETYPE_TEXT, sy-vline,
  WA_RJKSDCQPQUAN_WD_ALV-CHANGETYPE, sy-vline,
  WA_RJKSDCQPQUAN_WD_ALV-GUID, sy-vline,
  WA_RJKSDCQPQUAN_WD_ALV-WEEKDAY, sy-vline,
  WA_RJKSDCQPQUAN_WD_ALV-WEEKDAY_TEXT, sy-vline,
  WA_RJKSDCQPQUAN_WD_ALV-DATE_TO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKSDCQPQUAN_WD_ALV 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_RJKSDCQPQUAN_WD_ALV 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_RJKSDCQPQUAN_WD_ALV INTO WA_RJKSDCQPQUAN_WD_ALV.


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

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

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDCQPQUAN_WD_ALV-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDCQPQUAN_WD_ALV-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_RJKSDCQPQUAN_WD_ALV_STR, 
VBELN TYPE STRING,
POSNR TYPE STRING,
MEDIAPRODUCT TYPE STRING,
MEDIA_PRODUCT_DESCR TYPE STRING,
SERVICETYPE TYPE STRING,
SERVICETYPE_TEXT TYPE STRING,
CHANGETYPE TYPE STRING,
GUID TYPE STRING,
WEEKDAY TYPE STRING,
WEEKDAY_TEXT TYPE STRING,
DATE_TO TYPE STRING,
DATE_FROM TYPE STRING,
XFIXCQP TYPE STRING,
QUANTITY TYPE STRING,
UNIT 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,
REASON TYPE STRING,
COMMENTTEXT TYPE STRING,
CHANGEABLE TYPE STRING,
PERRULE_DAY TYPE STRING,
STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKSDCQPQUAN_WD_ALV_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_RJKSDCQPQUAN_WD_ALV_STR-VBELN sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-POSNR sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-MEDIAPRODUCT sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-MEDIA_PRODUCT_DESCR sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-SERVICETYPE sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-SERVICETYPE_TEXT sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-CHANGETYPE sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-GUID sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-WEEKDAY sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-WEEKDAY_TEXT sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-DATE_TO sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-DATE_FROM sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-XFIXCQP sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-QUANTITY sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-UNIT sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-QUANTITY1 sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-QUANTITY2 sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-QUANTITY3 sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-QUANTITY4 sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-QUANTITY5 sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-QUANTITY6 sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-QUANTITY7 sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-QUANTITY8 sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-QUANTITY9 sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-REASON sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-COMMENTTEXT sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-CHANGEABLE sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-PERRULE_DAY sy-vline 
WA_RJKSDCQPQUAN_WD_ALV_STR-STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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