ABAP Select data from SAP table ACDOCA_KENC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACDOCA_KENC
*  INTO TABLE @DATA(IT_ACDOCA_KENC2).
*--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_ACDOCA_KENC INDEX 1 INTO DATA(WA_ACDOCA_KENC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACDOCA_KENC>-RCLNT = 1.
<ACDOCA_KENC>-CHGRUN = 1.
<ACDOCA_KENC>-RLDNR = 1.
<ACDOCA_KENC>-RBUKRS = 1.
<ACDOCA_KENC>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACDOCA_KENC-BELNR, sy-vline,
  WA_ACDOCA_KENC-DOCLN, sy-vline,
  WA_ACDOCA_KENC-RCNTR, sy-vline,
  WA_ACDOCA_KENC-PRCTR, sy-vline,
  WA_ACDOCA_KENC-RFAREA, sy-vline,
  WA_ACDOCA_KENC-RBUSA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACDOCA_KENC 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_ACDOCA_KENC 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_ACDOCA_KENC INTO WA_ACDOCA_KENC.


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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_ACDOCA_KENC-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOCA_KENC-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PS_PSPID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_ACDOCA_KENC-PS_PSPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOCA_KENC-PS_PSPID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PS_POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_ACDOCA_KENC-PS_POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOCA_KENC-PS_POSID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit MATN1, internal->external for field MATNR_COPA
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ACDOCA_KENC-MATNR_COPA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOCA_KENC-MATNR_COPA.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field KUNWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACDOCA_KENC-KUNWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACDOCA_KENC-KUNWE.
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_ACDOCA_KENC_STR, 
RCLNT TYPE STRING,
CHGRUN TYPE STRING,
RLDNR TYPE STRING,
RBUKRS TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
DOCLN TYPE STRING,
RCNTR TYPE STRING,
PRCTR TYPE STRING,
RFAREA TYPE STRING,
RBUSA TYPE STRING,
KOKRS TYPE STRING,
SEGMENT TYPE STRING,
PPRCTR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
WERKS TYPE STRING,
KUNNR TYPE STRING,
AUFNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
PS_PSPID TYPE STRING,
PS_POSID TYPE STRING,
PRZNR TYPE STRING,
KSTRG TYPE STRING,
UPRCTR TYPE STRING,
SERVICE_DOC_TYPE TYPE STRING,
SERVICE_DOC_ID TYPE STRING,
SERVICE_DOC_ITEM_ID TYPE STRING,
VTKEY TYPE STRING,
VTPOS TYPE STRING,
DUMMY_INCL_EEW_COBL TYPE STRING,
FKART TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
MATNR_COPA TYPE STRING,
MATKL TYPE STRING,
KDGRP TYPE STRING,
LAND1 TYPE STRING,
BRSCH TYPE STRING,
BZIRK TYPE STRING,
KUNRE TYPE STRING,
KUNWE TYPE STRING,
KONZS TYPE STRING,
ACDOC_COPA_EEW_DUMMY_PA TYPE STRING,
WW0RE_PA TYPE STRING,
WW0SB_PA TYPE STRING,
DUMMY_MRKT_SGMNT_EEW_PS TYPE STRING,
_DATAAGING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACDOCA_KENC_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_ACDOCA_KENC_STR-RCLNT sy-vline 
WA_ACDOCA_KENC_STR-CHGRUN sy-vline 
WA_ACDOCA_KENC_STR-RLDNR sy-vline 
WA_ACDOCA_KENC_STR-RBUKRS sy-vline 
WA_ACDOCA_KENC_STR-GJAHR sy-vline 
WA_ACDOCA_KENC_STR-BELNR sy-vline 
WA_ACDOCA_KENC_STR-DOCLN sy-vline 
WA_ACDOCA_KENC_STR-RCNTR sy-vline 
WA_ACDOCA_KENC_STR-PRCTR sy-vline 
WA_ACDOCA_KENC_STR-RFAREA sy-vline 
WA_ACDOCA_KENC_STR-RBUSA sy-vline 
WA_ACDOCA_KENC_STR-KOKRS sy-vline 
WA_ACDOCA_KENC_STR-SEGMENT sy-vline 
WA_ACDOCA_KENC_STR-PPRCTR sy-vline 
WA_ACDOCA_KENC_STR-KDAUF sy-vline 
WA_ACDOCA_KENC_STR-KDPOS sy-vline 
WA_ACDOCA_KENC_STR-WERKS sy-vline 
WA_ACDOCA_KENC_STR-KUNNR sy-vline 
WA_ACDOCA_KENC_STR-AUFNR sy-vline 
WA_ACDOCA_KENC_STR-PS_PSP_PNR sy-vline 
WA_ACDOCA_KENC_STR-PS_PSPID sy-vline 
WA_ACDOCA_KENC_STR-PS_POSID sy-vline 
WA_ACDOCA_KENC_STR-PRZNR sy-vline 
WA_ACDOCA_KENC_STR-KSTRG sy-vline 
WA_ACDOCA_KENC_STR-UPRCTR sy-vline 
WA_ACDOCA_KENC_STR-SERVICE_DOC_TYPE sy-vline 
WA_ACDOCA_KENC_STR-SERVICE_DOC_ID sy-vline 
WA_ACDOCA_KENC_STR-SERVICE_DOC_ITEM_ID sy-vline 
WA_ACDOCA_KENC_STR-VTKEY sy-vline 
WA_ACDOCA_KENC_STR-VTPOS sy-vline 
WA_ACDOCA_KENC_STR-DUMMY_INCL_EEW_COBL sy-vline 
WA_ACDOCA_KENC_STR-FKART sy-vline 
WA_ACDOCA_KENC_STR-VKORG sy-vline 
WA_ACDOCA_KENC_STR-VTWEG sy-vline 
WA_ACDOCA_KENC_STR-SPART sy-vline 
WA_ACDOCA_KENC_STR-MATNR_COPA sy-vline 
WA_ACDOCA_KENC_STR-MATKL sy-vline 
WA_ACDOCA_KENC_STR-KDGRP sy-vline 
WA_ACDOCA_KENC_STR-LAND1 sy-vline 
WA_ACDOCA_KENC_STR-BRSCH sy-vline 
WA_ACDOCA_KENC_STR-BZIRK sy-vline 
WA_ACDOCA_KENC_STR-KUNRE sy-vline 
WA_ACDOCA_KENC_STR-KUNWE sy-vline 
WA_ACDOCA_KENC_STR-KONZS sy-vline 
WA_ACDOCA_KENC_STR-ACDOC_COPA_EEW_DUMMY_PA sy-vline 
WA_ACDOCA_KENC_STR-WW0RE_PA sy-vline 
WA_ACDOCA_KENC_STR-WW0SB_PA sy-vline 
WA_ACDOCA_KENC_STR-DUMMY_MRKT_SGMNT_EEW_PS sy-vline 
WA_ACDOCA_KENC_STR-_DATAAGING sy-vline      INTO ld_text SEPARATED BY SPACE.

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