ABAP Select data from SAP table HUKP_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HUKP_DATA
*  INTO TABLE @DATA(IT_HUKP_DATA2).
*--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_HUKP_DATA INDEX 1 INTO DATA(WA_HUKP_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HUKP_DATA>-MANDT = 1.
<HUKP_DATA>-HEIGHT = 1.
<HUKP_DATA>-WIDTH = 1.
<HUKP_DATA>-LENGTH = 1.
<HUKP_DATA>-IHEIGHT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HUKP_DATA-IWIDTH, sy-vline,
  WA_HUKP_DATA-ILENGTH, sy-vline,
  WA_HUKP_DATA-UNITDIM, sy-vline,
  WA_HUKP_DATA-SIZEFIX, sy-vline,
  WA_HUKP_DATA-TOTLVOL, sy-vline,
  WA_HUKP_DATA-LOADVOL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HUKP_DATA 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_HUKP_DATA 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_HUKP_DATA INTO WA_HUKP_DATA.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field EXIDV2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HUKP_DATA-EXIDV2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HUKP_DATA-EXIDV2.
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_HUKP_DATA_STR, 
MANDT TYPE STRING,
HEIGHT TYPE STRING,
WIDTH TYPE STRING,
LENGTH TYPE STRING,
IHEIGHT TYPE STRING,
IWIDTH TYPE STRING,
ILENGTH TYPE STRING,
UNITDIM TYPE STRING,
SIZEFIX TYPE STRING,
TOTLVOL TYPE STRING,
LOADVOL TYPE STRING,
ALLOVOL TYPE STRING,
UNITVOL_MAX TYPE STRING,
TAREVOL TYPE STRING,
UNITVOL TYPE STRING,
TOLEVOL TYPE STRING,
INDCLOPA TYPE STRING,
VOLUMFIX TYPE STRING,
TOTLVOLCHGD TYPE STRING,
TOTLWEI TYPE STRING,
LOADWEI TYPE STRING,
ALLOWEI TYPE STRING,
UNITWEI_MAX TYPE STRING,
TAREWEI TYPE STRING,
UNITWEI TYPE STRING,
TOLEWEI TYPE STRING,
WEIGHTFIX TYPE STRING,
TOTLWEICHGD TYPE STRING,
MAXSTWE TYPE STRING,
STFAC TYPE STRING,
SHIPLABEL TYPE STRING,
VEGR1 TYPE STRING,
VEGR2 TYPE STRING,
VEGR3 TYPE STRING,
VEGR4 TYPE STRING,
VEGR5 TYPE STRING,
EXIDV2 TYPE STRING,
HU_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HUKP_DATA_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_HUKP_DATA_STR-MANDT sy-vline 
WA_HUKP_DATA_STR-HEIGHT sy-vline 
WA_HUKP_DATA_STR-WIDTH sy-vline 
WA_HUKP_DATA_STR-LENGTH sy-vline 
WA_HUKP_DATA_STR-IHEIGHT sy-vline 
WA_HUKP_DATA_STR-IWIDTH sy-vline 
WA_HUKP_DATA_STR-ILENGTH sy-vline 
WA_HUKP_DATA_STR-UNITDIM sy-vline 
WA_HUKP_DATA_STR-SIZEFIX sy-vline 
WA_HUKP_DATA_STR-TOTLVOL sy-vline 
WA_HUKP_DATA_STR-LOADVOL sy-vline 
WA_HUKP_DATA_STR-ALLOVOL sy-vline 
WA_HUKP_DATA_STR-UNITVOL_MAX sy-vline 
WA_HUKP_DATA_STR-TAREVOL sy-vline 
WA_HUKP_DATA_STR-UNITVOL sy-vline 
WA_HUKP_DATA_STR-TOLEVOL sy-vline 
WA_HUKP_DATA_STR-INDCLOPA sy-vline 
WA_HUKP_DATA_STR-VOLUMFIX sy-vline 
WA_HUKP_DATA_STR-TOTLVOLCHGD sy-vline 
WA_HUKP_DATA_STR-TOTLWEI sy-vline 
WA_HUKP_DATA_STR-LOADWEI sy-vline 
WA_HUKP_DATA_STR-ALLOWEI sy-vline 
WA_HUKP_DATA_STR-UNITWEI_MAX sy-vline 
WA_HUKP_DATA_STR-TAREWEI sy-vline 
WA_HUKP_DATA_STR-UNITWEI sy-vline 
WA_HUKP_DATA_STR-TOLEWEI sy-vline 
WA_HUKP_DATA_STR-WEIGHTFIX sy-vline 
WA_HUKP_DATA_STR-TOTLWEICHGD sy-vline 
WA_HUKP_DATA_STR-MAXSTWE sy-vline 
WA_HUKP_DATA_STR-STFAC sy-vline 
WA_HUKP_DATA_STR-SHIPLABEL sy-vline 
WA_HUKP_DATA_STR-VEGR1 sy-vline 
WA_HUKP_DATA_STR-VEGR2 sy-vline 
WA_HUKP_DATA_STR-VEGR3 sy-vline 
WA_HUKP_DATA_STR-VEGR4 sy-vline 
WA_HUKP_DATA_STR-VEGR5 sy-vline 
WA_HUKP_DATA_STR-EXIDV2 sy-vline 
WA_HUKP_DATA_STR-HU_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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