ABAP Select data from SAP table FKK_UMBHI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_UMBHI
*  INTO TABLE @DATA(IT_FKK_UMBHI2).
*--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_FKK_UMBHI INDEX 1 INTO DATA(WA_FKK_UMBHI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_UMBHI>-MANDT = 1.
<FKK_UMBHI>-UMBNR = 1.
<FKK_UMBHI>-GPART1 = 1.
<FKK_UMBHI>-VKONT1 = 1.
<FKK_UMBHI>-VTREF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_UMBHI-GPART2, sy-vline,
  WA_FKK_UMBHI-VKONT2, sy-vline,
  WA_FKK_UMBHI-ERNAM, sy-vline,
  WA_FKK_UMBHI-CPUDT, sy-vline,
  WA_FKK_UMBHI-CPUTM, sy-vline,
  WA_FKK_UMBHI-UMBGR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_UMBHI 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_FKK_UMBHI 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_FKK_UMBHI INTO WA_FKK_UMBHI.


*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 GPART1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_UMBHI-GPART1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_UMBHI-GPART1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_UMBHI-VKONT1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_UMBHI-VKONT1.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field GPART2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_UMBHI-GPART2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_UMBHI-GPART2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_UMBHI-VKONT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_UMBHI-VKONT2.
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_FKK_UMBHI_STR, 
MANDT TYPE STRING,
UMBNR TYPE STRING,
GPART1 TYPE STRING,
VKONT1 TYPE STRING,
VTREF TYPE STRING,
GPART2 TYPE STRING,
VKONT2 TYPE STRING,
ERNAM TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
UMBGR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_UMBHI_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_FKK_UMBHI_STR-MANDT sy-vline 
WA_FKK_UMBHI_STR-UMBNR sy-vline 
WA_FKK_UMBHI_STR-GPART1 sy-vline 
WA_FKK_UMBHI_STR-VKONT1 sy-vline 
WA_FKK_UMBHI_STR-VTREF sy-vline 
WA_FKK_UMBHI_STR-GPART2 sy-vline 
WA_FKK_UMBHI_STR-VKONT2 sy-vline 
WA_FKK_UMBHI_STR-ERNAM sy-vline 
WA_FKK_UMBHI_STR-CPUDT sy-vline 
WA_FKK_UMBHI_STR-CPUTM sy-vline 
WA_FKK_UMBHI_STR-UMBGR sy-vline      INTO ld_text SEPARATED BY SPACE.

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