ABAP Select data from SAP table FKK_MA_COMBI_8 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKK_MA_COMBI_8 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_MA_COMBI_8. 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_MA_COMBI_8 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_MA_COMBI_8 TYPE STANDARD TABLE OF FKK_MA_COMBI_8,
      WA_FKK_MA_COMBI_8 TYPE FKK_MA_COMBI_8,
      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_MA_COMBI_8> TYPE FKK_MA_COMBI_8.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FKK_MA_COMBI_8.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FKK_MA_COMBI_8
  INTO TABLE IT_FKK_MA_COMBI_8.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_MA_COMBI_8
*  INTO TABLE @DATA(IT_FKK_MA_COMBI_82).
*--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_MA_COMBI_8 INDEX 1 INTO DATA(WA_FKK_MA_COMBI_82).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FKK_MA_COMBI_8 ASSIGNING <FKK_MA_COMBI_8>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_MA_COMBI_8>-MAKEY = 1.
<FKK_MA_COMBI_8>-COMBN = 1.
<FKK_MA_COMBI_8>-AGRM1 = 1.
<FKK_MA_COMBI_8>-AGRM2 = 1.
<FKK_MA_COMBI_8>-AGRM3 = 1.

ENDLOOP.

LOOP AT IT_FKK_MA_COMBI_8 INTO WA_FKK_MA_COMBI_8.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_MA_COMBI_8-AGRM4, sy-vline,
  WA_FKK_MA_COMBI_8-AGRM5, sy-vline,
  WA_FKK_MA_COMBI_8-AGRM6, sy-vline,
  WA_FKK_MA_COMBI_8-AGRM7, sy-vline,
  WA_FKK_MA_COMBI_8-AGRM8, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_FKK_MA_COMBI_8 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_MA_COMBI_8 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_MA_COMBI_8 INTO WA_FKK_MA_COMBI_8.


*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 MAKEY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MA_COMBI_8-MAKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MA_COMBI_8-MAKEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AGRM1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MA_COMBI_8-AGRM1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MA_COMBI_8-AGRM1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AGRM2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MA_COMBI_8-AGRM2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MA_COMBI_8-AGRM2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AGRM3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MA_COMBI_8-AGRM3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MA_COMBI_8-AGRM3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AGRM4
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MA_COMBI_8-AGRM4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MA_COMBI_8-AGRM4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AGRM5
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MA_COMBI_8-AGRM5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MA_COMBI_8-AGRM5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AGRM6
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MA_COMBI_8-AGRM6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MA_COMBI_8-AGRM6.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AGRM7
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MA_COMBI_8-AGRM7
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MA_COMBI_8-AGRM7.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AGRM8
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_MA_COMBI_8-AGRM8
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_MA_COMBI_8-AGRM8.
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_MA_COMBI_8_STR, 
MAKEY TYPE STRING,
COMBN TYPE STRING,
AGRM1 TYPE STRING,
AGRM2 TYPE STRING,
AGRM3 TYPE STRING,
AGRM4 TYPE STRING,
AGRM5 TYPE STRING,
AGRM6 TYPE STRING,
AGRM7 TYPE STRING,
AGRM8 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_MA_COMBI_8_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_MA_COMBI_8_STR-MAKEY sy-vline 
WA_FKK_MA_COMBI_8_STR-COMBN sy-vline 
WA_FKK_MA_COMBI_8_STR-AGRM1 sy-vline 
WA_FKK_MA_COMBI_8_STR-AGRM2 sy-vline 
WA_FKK_MA_COMBI_8_STR-AGRM3 sy-vline 
WA_FKK_MA_COMBI_8_STR-AGRM4 sy-vline 
WA_FKK_MA_COMBI_8_STR-AGRM5 sy-vline 
WA_FKK_MA_COMBI_8_STR-AGRM6 sy-vline 
WA_FKK_MA_COMBI_8_STR-AGRM7 sy-vline 
WA_FKK_MA_COMBI_8_STR-AGRM8 sy-vline      INTO ld_text SEPARATED BY SPACE.

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