ABAP Select data from SAP table GHO_S_LINK_MASS_DATA_NEW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GHO_S_LINK_MASS_DATA_NEW
*  INTO TABLE @DATA(IT_GHO_S_LINK_MASS_DATA_NEW2).
*--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_GHO_S_LINK_MASS_DATA_NEW INDEX 1 INTO DATA(WA_GHO_S_LINK_MASS_DATA_NEW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GHO_S_LINK_MASS_DATA_NEW>-GHO_NETOBJ_ID = 1.
<GHO_S_LINK_MASS_DATA_NEW>-KANTE = 1.
<GHO_S_LINK_MASS_DATA_NEW>-KANXT = 1.
<GHO_S_LINK_MASS_DATA_NEW>-TPVON = 1.
<GHO_S_LINK_MASS_DATA_NEW>-TPVON_DES = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GHO_S_LINK_MASS_DATA_NEW-OTYPE1, sy-vline,
  WA_GHO_S_LINK_MASS_DATA_NEW-OTYPE1_DES, sy-vline,
  WA_GHO_S_LINK_MASS_DATA_NEW-TPNACH, sy-vline,
  WA_GHO_S_LINK_MASS_DATA_NEW-TPNACH_DES, sy-vline,
  WA_GHO_S_LINK_MASS_DATA_NEW-OTYPE2, sy-vline,
  WA_GHO_S_LINK_MASS_DATA_NEW-OTYPE2_DES, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GHO_S_LINK_MASS_DATA_NEW 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_GHO_S_LINK_MASS_DATA_NEW 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_GHO_S_LINK_MASS_DATA_NEW INTO WA_GHO_S_LINK_MASS_DATA_NEW.


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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_GHO_S_LINK_MASS_DATA_NEW-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GHO_S_LINK_MASS_DATA_NEW-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_GHO_S_LINK_MASS_DATA_NEW_STR, 
GHO_NETOBJ_ID TYPE STRING,
KANTE TYPE STRING,
KANXT TYPE STRING,
TPVON TYPE STRING,
TPVON_DES TYPE STRING,
OTYPE1 TYPE STRING,
OTYPE1_DES TYPE STRING,
TPNACH TYPE STRING,
TPNACH_DES TYPE STRING,
OTYPE2 TYPE STRING,
OTYPE2_DES TYPE STRING,
DATVA TYPE STRING,
ZEITVA TYPE STRING,
DATVB TYPE STRING,
ZEITVB TYPE STRING,
MEDIU TYPE STRING,
MEDKXT TYPE STRING,
BEZARL TYPE STRING,
MATNR TYPE STRING,
MATXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GHO_S_LINK_MASS_DATA_NEW_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_GHO_S_LINK_MASS_DATA_NEW_STR-GHO_NETOBJ_ID sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-KANTE sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-KANXT sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-TPVON sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-TPVON_DES sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-OTYPE1 sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-OTYPE1_DES sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-TPNACH sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-TPNACH_DES sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-OTYPE2 sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-OTYPE2_DES sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-DATVA sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-ZEITVA sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-DATVB sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-ZEITVB sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-MEDIU sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-MEDKXT sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-BEZARL sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-MATNR sy-vline 
WA_GHO_S_LINK_MASS_DATA_NEW_STR-MATXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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