ABAP Select data from SAP table DFKKEXC into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKEXC
*  INTO TABLE @DATA(IT_DFKKEXC2).
*--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_DFKKEXC INDEX 1 INTO DATA(WA_DFKKEXC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKEXC>-MANDT = 1.
<DFKKEXC>-OFFIC = 1.
<DFKKEXC>-CHDSK = 1.
<DFKKEXC>-PAYID = 1.
<DFKKEXC>-PAYTP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKEXC-PAYKY, sy-vline,
  WA_DFKKEXC-PRZTP, sy-vline,
  WA_DFKKEXC-GPART, sy-vline,
  WA_DFKKEXC-BPEXT, sy-vline,
  WA_DFKKEXC-VKONT, sy-vline,
  WA_DFKKEXC-VKONA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKEXC 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_DFKKEXC 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_DFKKEXC INTO WA_DFKKEXC.


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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PYORD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKEXC-PYORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKEXC-PYORD.
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_DFKKEXC_STR, 
MANDT TYPE STRING,
OFFIC TYPE STRING,
CHDSK TYPE STRING,
PAYID TYPE STRING,
PAYTP TYPE STRING,
PAYKY TYPE STRING,
PRZTP TYPE STRING,
GPART TYPE STRING,
BPEXT TYPE STRING,
VKONT TYPE STRING,
VKONA TYPE STRING,
BETRZ TYPE STRING,
WAERS TYPE STRING,
VALUT TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
UZEIT TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
SEGMENT TYPE STRING,
PRCTR TYPE STRING,
CDVKO TYPE STRING,
XAKON TYPE STRING,
STEXC TYPE STRING,
OPBEL TYPE STRING,
KEYZ1 TYPE STRING,
POSZA TYPE STRING,
STAAG TYPE STRING,
ERNAM TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
STORB TYPE STRING,
STDAT TYPE STRING,
STLOT TYPE STRING,
XIGUID TYPE STRING,
STGUID TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
HOST TYPE STRING,
UPDSC TYPE STRING,
TRBEL TYPE STRING,
STRBL TYPE STRING,
POSRV TYPE STRING,
PYOUT TYPE STRING,
PAYRF TYPE STRING,
KUKON TYPE STRING,
HZUON TYPE STRING,
SGTXT TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
RTPTP TYPE STRING,
PYORD TYPE STRING,
STRTP TYPE STRING,
BKVID TYPE STRING,
VACID TYPE STRING,
KEYR1 TYPE STRING,
RCODE TYPE STRING,
RLGRD TYPE STRING,
RLHBK TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
AETIM TYPE STRING,
PYMET TYPE STRING,
PYVAR TYPE STRING,
RCAVR TYPE STRING,
RCAVA TYPE STRING,
RCAVZ TYPE STRING,
RCRSP TYPE STRING,
RTEXT TYPE STRING,
RCCVV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKEXC_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_DFKKEXC_STR-MANDT sy-vline 
WA_DFKKEXC_STR-OFFIC sy-vline 
WA_DFKKEXC_STR-CHDSK sy-vline 
WA_DFKKEXC_STR-PAYID sy-vline 
WA_DFKKEXC_STR-PAYTP sy-vline 
WA_DFKKEXC_STR-PAYKY sy-vline 
WA_DFKKEXC_STR-PRZTP sy-vline 
WA_DFKKEXC_STR-GPART sy-vline 
WA_DFKKEXC_STR-BPEXT sy-vline 
WA_DFKKEXC_STR-VKONT sy-vline 
WA_DFKKEXC_STR-VKONA sy-vline 
WA_DFKKEXC_STR-BETRZ sy-vline 
WA_DFKKEXC_STR-WAERS sy-vline 
WA_DFKKEXC_STR-VALUT sy-vline 
WA_DFKKEXC_STR-BLDAT sy-vline 
WA_DFKKEXC_STR-BUDAT sy-vline 
WA_DFKKEXC_STR-UZEIT sy-vline 
WA_DFKKEXC_STR-BUKRS sy-vline 
WA_DFKKEXC_STR-GSBER sy-vline 
WA_DFKKEXC_STR-SEGMENT sy-vline 
WA_DFKKEXC_STR-PRCTR sy-vline 
WA_DFKKEXC_STR-CDVKO sy-vline 
WA_DFKKEXC_STR-XAKON sy-vline 
WA_DFKKEXC_STR-STEXC sy-vline 
WA_DFKKEXC_STR-OPBEL sy-vline 
WA_DFKKEXC_STR-KEYZ1 sy-vline 
WA_DFKKEXC_STR-POSZA sy-vline 
WA_DFKKEXC_STR-STAAG sy-vline 
WA_DFKKEXC_STR-ERNAM sy-vline 
WA_DFKKEXC_STR-CPUDT sy-vline 
WA_DFKKEXC_STR-CPUTM sy-vline 
WA_DFKKEXC_STR-STORB sy-vline 
WA_DFKKEXC_STR-STDAT sy-vline 
WA_DFKKEXC_STR-STLOT sy-vline 
WA_DFKKEXC_STR-XIGUID sy-vline 
WA_DFKKEXC_STR-STGUID sy-vline 
WA_DFKKEXC_STR-MSGID sy-vline 
WA_DFKKEXC_STR-MSGNO sy-vline 
WA_DFKKEXC_STR-MSGV1 sy-vline 
WA_DFKKEXC_STR-MSGV2 sy-vline 
WA_DFKKEXC_STR-MSGV3 sy-vline 
WA_DFKKEXC_STR-MSGV4 sy-vline 
WA_DFKKEXC_STR-HOST sy-vline 
WA_DFKKEXC_STR-UPDSC sy-vline 
WA_DFKKEXC_STR-TRBEL sy-vline 
WA_DFKKEXC_STR-STRBL sy-vline 
WA_DFKKEXC_STR-POSRV sy-vline 
WA_DFKKEXC_STR-PYOUT sy-vline 
WA_DFKKEXC_STR-PAYRF sy-vline 
WA_DFKKEXC_STR-KUKON sy-vline 
WA_DFKKEXC_STR-HZUON sy-vline 
WA_DFKKEXC_STR-SGTXT sy-vline 
WA_DFKKEXC_STR-HBKID sy-vline 
WA_DFKKEXC_STR-HKTID sy-vline 
WA_DFKKEXC_STR-RTPTP sy-vline 
WA_DFKKEXC_STR-PYORD sy-vline 
WA_DFKKEXC_STR-STRTP sy-vline 
WA_DFKKEXC_STR-BKVID sy-vline 
WA_DFKKEXC_STR-VACID sy-vline 
WA_DFKKEXC_STR-KEYR1 sy-vline 
WA_DFKKEXC_STR-RCODE sy-vline 
WA_DFKKEXC_STR-RLGRD sy-vline 
WA_DFKKEXC_STR-RLHBK sy-vline 
WA_DFKKEXC_STR-AENAM sy-vline 
WA_DFKKEXC_STR-AEDAT sy-vline 
WA_DFKKEXC_STR-AETIM sy-vline 
WA_DFKKEXC_STR-PYMET sy-vline 
WA_DFKKEXC_STR-PYVAR sy-vline 
WA_DFKKEXC_STR-RCAVR sy-vline 
WA_DFKKEXC_STR-RCAVA sy-vline 
WA_DFKKEXC_STR-RCAVZ sy-vline 
WA_DFKKEXC_STR-RCRSP sy-vline 
WA_DFKKEXC_STR-RTEXT sy-vline 
WA_DFKKEXC_STR-RCCVV sy-vline      INTO ld_text SEPARATED BY SPACE.

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