ABAP Select data from SAP table /SAPCE/IU_HUFKK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPCE/IU_HUFKK 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 /SAPCE/IU_HUFKK. 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 /SAPCE/IU_HUFKK 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_/SAPCE/IU_HUFKK TYPE STANDARD TABLE OF /SAPCE/IU_HUFKK,
      WA_/SAPCE/IU_HUFKK TYPE /SAPCE/IU_HUFKK,
      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: </SAPCE/IU_HUFKK> TYPE /SAPCE/IU_HUFKK.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPCE/IU_HUFKK
  INTO TABLE IT_/SAPCE/IU_HUFKK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPCE/IU_HUFKK
*  INTO TABLE @DATA(IT_/SAPCE/IU_HUFKK2).
*--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_/SAPCE/IU_HUFKK INDEX 1 INTO DATA(WA_/SAPCE/IU_HUFKK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPCE/IU_HUFKK ASSIGNING </SAPCE/IU_HUFKK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPCE/IU_HUFKK>-MANDT = 1.
</SAPCE/IU_HUFKK>-BUKRS = 1.
</SAPCE/IU_HUFKK>-APPLK = 1.
</SAPCE/IU_HUFKK>-SPARTE = 1.
</SAPCE/IU_HUFKK>-OPBEL = 1.

ENDLOOP.

LOOP AT IT_/SAPCE/IU_HUFKK INTO WA_/SAPCE/IU_HUFKK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPCE/IU_HUFKK-VERTRAG, sy-vline,
  WA_/SAPCE/IU_HUFKK-FIKEY, sy-vline,
  WA_/SAPCE/IU_HUFKK-GPCTYPE, sy-vline,
  WA_/SAPCE/IU_HUFKK-GPCCAST, sy-vline,
  WA_/SAPCE/IU_HUFKK-MWSKZ, sy-vline,
  WA_/SAPCE/IU_HUFKK-COUNTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPCE/IU_HUFKK 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_/SAPCE/IU_HUFKK 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_/SAPCE/IU_HUFKK INTO WA_/SAPCE/IU_HUFKK.


*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 OPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCE/IU_HUFKK-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCE/IU_HUFKK-OPBEL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field OPBEL_D
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCE/IU_HUFKK-OPBEL_D
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCE/IU_HUFKK-OPBEL_D.
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_/SAPCE/IU_HUFKK_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
APPLK TYPE STRING,
SPARTE TYPE STRING,
OPBEL TYPE STRING,
VERTRAG TYPE STRING,
FIKEY TYPE STRING,
GPCTYPE TYPE STRING,
GPCCAST TYPE STRING,
MWSKZ TYPE STRING,
COUNTER TYPE STRING,
INTOPBEL TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
GSBER TYPE STRING,
VKONT TYPE STRING,
GPART TYPE STRING,
BEGABRPE TYPE STRING,
ENDABRPE TYPE STRING,
TARIFTYP TYPE STRING,
I_ABRMENGE TYPE STRING,
TOTAL_AMNT TYPE STRING,
TOTAL_WAER TYPE STRING,
T_GPART TYPE STRING,
T_VKONT TYPE STRING,
T_HVORG TYPE STRING,
T_TVORG TYPE STRING,
T_GEGEN_TVORG TYPE STRING,
BLART TYPE STRING,
HEATQB TYPE STRING,
NOPREM TYPE STRING,
CCONSUMED TYPE STRING,
BILLEDC TYPE STRING,
BILLEDT TYPE STRING,
BILLEDB TYPE STRING,
NENTITLED TYPE STRING,
OPBEL_D TYPE STRING,
BUDAT_D TYPE STRING,
BLDAT_D TYPE STRING,
POST_RELEVANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPCE/IU_HUFKK_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_/SAPCE/IU_HUFKK_STR-MANDT sy-vline 
WA_/SAPCE/IU_HUFKK_STR-BUKRS sy-vline 
WA_/SAPCE/IU_HUFKK_STR-APPLK sy-vline 
WA_/SAPCE/IU_HUFKK_STR-SPARTE sy-vline 
WA_/SAPCE/IU_HUFKK_STR-OPBEL sy-vline 
WA_/SAPCE/IU_HUFKK_STR-VERTRAG sy-vline 
WA_/SAPCE/IU_HUFKK_STR-FIKEY sy-vline 
WA_/SAPCE/IU_HUFKK_STR-GPCTYPE sy-vline 
WA_/SAPCE/IU_HUFKK_STR-GPCCAST sy-vline 
WA_/SAPCE/IU_HUFKK_STR-MWSKZ sy-vline 
WA_/SAPCE/IU_HUFKK_STR-COUNTER sy-vline 
WA_/SAPCE/IU_HUFKK_STR-INTOPBEL sy-vline 
WA_/SAPCE/IU_HUFKK_STR-BLDAT sy-vline 
WA_/SAPCE/IU_HUFKK_STR-BUDAT sy-vline 
WA_/SAPCE/IU_HUFKK_STR-GSBER sy-vline 
WA_/SAPCE/IU_HUFKK_STR-VKONT sy-vline 
WA_/SAPCE/IU_HUFKK_STR-GPART sy-vline 
WA_/SAPCE/IU_HUFKK_STR-BEGABRPE sy-vline 
WA_/SAPCE/IU_HUFKK_STR-ENDABRPE sy-vline 
WA_/SAPCE/IU_HUFKK_STR-TARIFTYP sy-vline 
WA_/SAPCE/IU_HUFKK_STR-I_ABRMENGE sy-vline 
WA_/SAPCE/IU_HUFKK_STR-TOTAL_AMNT sy-vline 
WA_/SAPCE/IU_HUFKK_STR-TOTAL_WAER sy-vline 
WA_/SAPCE/IU_HUFKK_STR-T_GPART sy-vline 
WA_/SAPCE/IU_HUFKK_STR-T_VKONT sy-vline 
WA_/SAPCE/IU_HUFKK_STR-T_HVORG sy-vline 
WA_/SAPCE/IU_HUFKK_STR-T_TVORG sy-vline 
WA_/SAPCE/IU_HUFKK_STR-T_GEGEN_TVORG sy-vline 
WA_/SAPCE/IU_HUFKK_STR-BLART sy-vline 
WA_/SAPCE/IU_HUFKK_STR-HEATQB sy-vline 
WA_/SAPCE/IU_HUFKK_STR-NOPREM sy-vline 
WA_/SAPCE/IU_HUFKK_STR-CCONSUMED sy-vline 
WA_/SAPCE/IU_HUFKK_STR-BILLEDC sy-vline 
WA_/SAPCE/IU_HUFKK_STR-BILLEDT sy-vline 
WA_/SAPCE/IU_HUFKK_STR-BILLEDB sy-vline 
WA_/SAPCE/IU_HUFKK_STR-NENTITLED sy-vline 
WA_/SAPCE/IU_HUFKK_STR-OPBEL_D sy-vline 
WA_/SAPCE/IU_HUFKK_STR-BUDAT_D sy-vline 
WA_/SAPCE/IU_HUFKK_STR-BLDAT_D sy-vline 
WA_/SAPCE/IU_HUFKK_STR-POST_RELEVANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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