ABAP Select data from SAP table RJKUNSOLDITEM_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJKUNSOLDITEM_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 RJKUNSOLDITEM_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 RJKUNSOLDITEM_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_RJKUNSOLDITEM_ALV TYPE STANDARD TABLE OF RJKUNSOLDITEM_ALV,
      WA_RJKUNSOLDITEM_ALV TYPE RJKUNSOLDITEM_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: <RJKUNSOLDITEM_ALV> TYPE RJKUNSOLDITEM_ALV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKUNSOLDITEM_ALV
*  INTO TABLE @DATA(IT_RJKUNSOLDITEM_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_RJKUNSOLDITEM_ALV INDEX 1 INTO DATA(WA_RJKUNSOLDITEM_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKUNSOLDITEM_ALV>-WORKLISTITEM = 1.
<RJKUNSOLDITEM_ALV>-VBELN = 1.
<RJKUNSOLDITEM_ALV>-POSNR = 1.
<RJKUNSOLDITEM_ALV>-REF_VBELN = 1.
<RJKUNSOLDITEM_ALV>-REF_POSNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKUNSOLDITEM_ALV-VKORG, sy-vline,
  WA_RJKUNSOLDITEM_ALV-VTWEG, sy-vline,
  WA_RJKUNSOLDITEM_ALV-SPART, sy-vline,
  WA_RJKUNSOLDITEM_ALV-KUNAG, sy-vline,
  WA_RJKUNSOLDITEM_ALV-ORD_REASON, sy-vline,
  WA_RJKUNSOLDITEM_ALV-FKDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKUNSOLDITEM_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_RJKUNSOLDITEM_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_RJKUNSOLDITEM_ALV INTO WA_RJKUNSOLDITEM_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_RJKUNSOLDITEM_ALV-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKUNSOLDITEM_ALV-VBELN.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RJKUNSOLDITEM_ALV-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKUNSOLDITEM_ALV-MATNR.
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_RJKUNSOLDITEM_ALV_STR, 
WORKLISTITEM TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
REF_VBELN TYPE STRING,
REF_POSNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KUNAG TYPE STRING,
ORD_REASON TYPE STRING,
FKDAT TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
CALCTYPCON TYPE STRING,
COND_VALUE TYPE STRING,
CURRENCY TYPE STRING,
COND_UNIT TYPE STRING,
COND_P_UNT TYPE STRING,
MATNR TYPE STRING,
CREDIT_TYPE TYPE STRING,
XCOPYCOND TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,
ERFTIME TYPE STRING,
SELKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKUNSOLDITEM_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_RJKUNSOLDITEM_ALV_STR-WORKLISTITEM sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-VBELN sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-POSNR sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-REF_VBELN sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-REF_POSNR sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-VKORG sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-VTWEG sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-SPART sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-KUNAG sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-ORD_REASON sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-FKDAT sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-QUANTITY sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-UNIT sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-CALCTYPCON sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-COND_VALUE sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-CURRENCY sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-COND_UNIT sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-COND_P_UNT sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-MATNR sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-CREDIT_TYPE sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-XCOPYCOND sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-ERFUSER sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-ERFDATE sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-ERFTIME sy-vline 
WA_RJKUNSOLDITEM_ALV_STR-SELKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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