ABAP Select data from SAP table DFKKFMBGAINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKFMBGAINFO
*  INTO TABLE @DATA(IT_DFKKFMBGAINFO2).
*--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_DFKKFMBGAINFO INDEX 1 INTO DATA(WA_DFKKFMBGAINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKFMBGAINFO>-MANDT = 1.
<DFKKFMBGAINFO>-OPBEL = 1.
<DFKKFMBGAINFO>-ITEMNR = 1.
<DFKKFMBGAINFO>-BGA = 1.
<DFKKFMBGAINFO>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKFMBGAINFO-BUDAT, sy-vline,
  WA_DFKKFMBGAINFO-BUDGETYEAR, sy-vline,
  WA_DFKKFMBGAINFO-FIPEX, sy-vline,
  WA_DFKKFMBGAINFO-FISTL, sy-vline,
  WA_DFKKFMBGAINFO-GEBER, sy-vline,
  WA_DFKKFMBGAINFO-FKBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKFMBGAINFO 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_DFKKFMBGAINFO 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_DFKKFMBGAINFO INTO WA_DFKKFMBGAINFO.


*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_DFKKFMBGAINFO-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKFMBGAINFO-OPBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field BUDGETYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_DFKKFMBGAINFO-BUDGETYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKFMBGAINFO-BUDGETYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_DFKKFMBGAINFO-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKFMBGAINFO-FIPEX.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_DFKKFMBGAINFO-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKFMBGAINFO-PS_PSP_PNR.
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_DFKKFMBGAINFO_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
ITEMNR TYPE STRING,
BGA TYPE STRING,
BUKRS TYPE STRING,
BUDAT TYPE STRING,
BUDGETYEAR TYPE STRING,
FIPEX TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
FKBER TYPE STRING,
MEASURE TYPE STRING,
GRANT_NBR TYPE STRING,
HKONT TYPE STRING,
AUFNR TYPE STRING,
KOSTL TYPE STRING,
PS_PSP_PNR TYPE STRING,
MWSKZ TYPE STRING,
KTOSL TYPE STRING,
BETRH TYPE STRING,
HWSTE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKFMBGAINFO_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_DFKKFMBGAINFO_STR-MANDT sy-vline 
WA_DFKKFMBGAINFO_STR-OPBEL sy-vline 
WA_DFKKFMBGAINFO_STR-ITEMNR sy-vline 
WA_DFKKFMBGAINFO_STR-BGA sy-vline 
WA_DFKKFMBGAINFO_STR-BUKRS sy-vline 
WA_DFKKFMBGAINFO_STR-BUDAT sy-vline 
WA_DFKKFMBGAINFO_STR-BUDGETYEAR sy-vline 
WA_DFKKFMBGAINFO_STR-FIPEX sy-vline 
WA_DFKKFMBGAINFO_STR-FISTL sy-vline 
WA_DFKKFMBGAINFO_STR-GEBER sy-vline 
WA_DFKKFMBGAINFO_STR-FKBER sy-vline 
WA_DFKKFMBGAINFO_STR-MEASURE sy-vline 
WA_DFKKFMBGAINFO_STR-GRANT_NBR sy-vline 
WA_DFKKFMBGAINFO_STR-HKONT sy-vline 
WA_DFKKFMBGAINFO_STR-AUFNR sy-vline 
WA_DFKKFMBGAINFO_STR-KOSTL sy-vline 
WA_DFKKFMBGAINFO_STR-PS_PSP_PNR sy-vline 
WA_DFKKFMBGAINFO_STR-MWSKZ sy-vline 
WA_DFKKFMBGAINFO_STR-KTOSL sy-vline 
WA_DFKKFMBGAINFO_STR-BETRH sy-vline 
WA_DFKKFMBGAINFO_STR-HWSTE sy-vline      INTO ld_text SEPARATED BY SPACE.

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