ABAP Select data from SAP table LXYRD_HU_ADDITIONAL_FIELDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LXYRD_HU_ADDITIONAL_FIELDS
*  INTO TABLE @DATA(IT_LXYRD_HU_ADDITIONAL_FIELDS2).
*--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_LXYRD_HU_ADDITIONAL_FIELDS INDEX 1 INTO DATA(WA_LXYRD_HU_ADDITIONAL_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LXYRD_HU_ADDITIONAL_FIELDS>-LYARD = 1.
<LXYRD_HU_ADDITIONAL_FIELDS>-YLCCL = 1.
<LXYRD_HU_ADDITIONAL_FIELDS>-YLOCT = 1.
<LXYRD_HU_ADDITIONAL_FIELDS>-STATS = 1.
<LXYRD_HU_ADDITIONAL_FIELDS>-PRRTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LXYRD_HU_ADDITIONAL_FIELDS-FWAGN, sy-vline,
  WA_LXYRD_HU_ADDITIONAL_FIELDS-SCACD, sy-vline,
  WA_LXYRD_HU_ADDITIONAL_FIELDS-OWNER, sy-vline,
  WA_LXYRD_HU_ADDITIONAL_FIELDS-TRNPD, sy-vline,
  WA_LXYRD_HU_ADDITIONAL_FIELDS-SEALN1, sy-vline,
  WA_LXYRD_HU_ADDITIONAL_FIELDS-SEALN2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LXYRD_HU_ADDITIONAL_FIELDS 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_LXYRD_HU_ADDITIONAL_FIELDS 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_LXYRD_HU_ADDITIONAL_FIELDS INTO WA_LXYRD_HU_ADDITIONAL_FIELDS.


*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 FWAGN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXYRD_HU_ADDITIONAL_FIELDS-FWAGN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXYRD_HU_ADDITIONAL_FIELDS-FWAGN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TSHME, internal->external for field PTMST
CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT'
  EXPORTING
    input =                      WA_LXYRD_HU_ADDITIONAL_FIELDS-PTMST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXYRD_HU_ADDITIONAL_FIELDS-PTMST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSHME, internal->external for field ATMST
CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT'
  EXPORTING
    input =                      WA_LXYRD_HU_ADDITIONAL_FIELDS-ATMST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXYRD_HU_ADDITIONAL_FIELDS-ATMST.
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_LXYRD_HU_ADDITIONAL_FIELDS_STR, 
LYARD TYPE STRING,
YLCCL TYPE STRING,
YLOCT TYPE STRING,
STATS TYPE STRING,
PRRTY TYPE STRING,
FWAGN TYPE STRING,
SCACD TYPE STRING,
OWNER TYPE STRING,
TRNPD TYPE STRING,
SEALN1 TYPE STRING,
SEALN2 TYPE STRING,
SEALN3 TYPE STRING,
SEALN4 TYPE STRING,
SEALN5 TYPE STRING,
BLIND TYPE STRING,
RSNCD TYPE STRING,
RFTYP TYPE STRING,
REFER TYPE STRING,
PTMST TYPE STRING,
ATMST TYPE STRING,
YDOOR TYPE STRING,
YSTGA TYPE STRING,
URGFL TYPE STRING,
PRFLG TYPE STRING,
SLFLG TYPE STRING,
SIGNI TYPE STRING,
LTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LXYRD_HU_ADDITIONAL_FIELDS_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_LXYRD_HU_ADDITIONAL_FIELDS_STR-LYARD sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-YLCCL sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-YLOCT sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-STATS sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-PRRTY sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-FWAGN sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-SCACD sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-OWNER sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-TRNPD sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-SEALN1 sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-SEALN2 sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-SEALN3 sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-SEALN4 sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-SEALN5 sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-BLIND sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-RSNCD sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-RFTYP sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-REFER sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-PTMST sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-ATMST sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-YDOOR sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-YSTGA sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-URGFL sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-PRFLG sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-SLFLG sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-SIGNI sy-vline 
WA_LXYRD_HU_ADDITIONAL_FIELDS_STR-LTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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