ABAP Select data from SAP table FCOV_ACCDOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCOV_ACCDOC
*  INTO TABLE @DATA(IT_FCOV_ACCDOC2).
*--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_FCOV_ACCDOC INDEX 1 INTO DATA(WA_FCOV_ACCDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCOV_ACCDOC>-MANDT = 1.
<FCOV_ACCDOC>-KOKRS = 1.
<FCOV_ACCDOC>-BELNR_FI = 1.
<FCOV_ACCDOC>-BUZEI_FI = 1.
<FCOV_ACCDOC>-BELNR_CO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCOV_ACCDOC-BUZEI_CO, sy-vline,
  WA_FCOV_ACCDOC-GJAHR, sy-vline,
  WA_FCOV_ACCDOC-BUKRS, sy-vline,
  WA_FCOV_ACCDOC-BUDAT, sy-vline,
  WA_FCOV_ACCDOC-BKTXT, sy-vline,
  WA_FCOV_ACCDOC-USNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCOV_ACCDOC 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_FCOV_ACCDOC 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_FCOV_ACCDOC INTO WA_FCOV_ACCDOC.


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FCOV_ACCDOC-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCOV_ACCDOC-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FCOV_ACCDOC-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCOV_ACCDOC-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FCOV_ACCDOC-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCOV_ACCDOC-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WTGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FCOV_ACCDOC-WTGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCOV_ACCDOC-WTGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FCOV_ACCDOC-WOGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCOV_ACCDOC-WOGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH_CO
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FCOV_ACCDOC-MEINH_CO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCOV_ACCDOC-MEINH_CO.
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_FCOV_ACCDOC_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
BELNR_FI TYPE STRING,
BUZEI_FI TYPE STRING,
BELNR_CO TYPE STRING,
BUZEI_CO TYPE STRING,
GJAHR TYPE STRING,
BUKRS TYPE STRING,
BUDAT TYPE STRING,
BKTXT TYPE STRING,
USNAM TYPE STRING,
AWTYP TYPE STRING,
AWSYS TYPE STRING,
AWKEY TYPE STRING,
KOART TYPE STRING,
FKBER TYPE STRING,
SEGMENT TYPE STRING,
GEBER TYPE STRING,
GRANT_NBR TYPE STRING,
BUDGET_PD TYPE STRING,
HKONT TYPE STRING,
SAKNR TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
GSBER TYPE STRING,
AUFNR TYPE STRING,
MWSKZ TYPE STRING,
PERIO TYPE STRING,
OBJNR TYPE STRING,
PAOBJNR TYPE STRING,
KOSTL TYPE STRING,
LSTAR TYPE STRING,
PROJK TYPE STRING,
VERSN TYPE STRING,
KSTAR TYPE STRING,
HRKFT TYPE STRING,
VRGNG TYPE STRING,
VBUND TYPE STRING,
PARGB TYPE STRING,
BEKNZ TYPE STRING,
WRBTR TYPE STRING,
WAERS TYPE STRING,
DMBTR TYPE STRING,
HWAER TYPE STRING,
MENGE TYPE STRING,
MEINH TYPE STRING,
WTGBTR TYPE STRING,
TWAER TYPE STRING,
WOGBTR TYPE STRING,
OWAER TYPE STRING,
MEGBTR TYPE STRING,
MEINH_CO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCOV_ACCDOC_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_FCOV_ACCDOC_STR-MANDT sy-vline 
WA_FCOV_ACCDOC_STR-KOKRS sy-vline 
WA_FCOV_ACCDOC_STR-BELNR_FI sy-vline 
WA_FCOV_ACCDOC_STR-BUZEI_FI sy-vline 
WA_FCOV_ACCDOC_STR-BELNR_CO sy-vline 
WA_FCOV_ACCDOC_STR-BUZEI_CO sy-vline 
WA_FCOV_ACCDOC_STR-GJAHR sy-vline 
WA_FCOV_ACCDOC_STR-BUKRS sy-vline 
WA_FCOV_ACCDOC_STR-BUDAT sy-vline 
WA_FCOV_ACCDOC_STR-BKTXT sy-vline 
WA_FCOV_ACCDOC_STR-USNAM sy-vline 
WA_FCOV_ACCDOC_STR-AWTYP sy-vline 
WA_FCOV_ACCDOC_STR-AWSYS sy-vline 
WA_FCOV_ACCDOC_STR-AWKEY sy-vline 
WA_FCOV_ACCDOC_STR-KOART sy-vline 
WA_FCOV_ACCDOC_STR-FKBER sy-vline 
WA_FCOV_ACCDOC_STR-SEGMENT sy-vline 
WA_FCOV_ACCDOC_STR-GEBER sy-vline 
WA_FCOV_ACCDOC_STR-GRANT_NBR sy-vline 
WA_FCOV_ACCDOC_STR-BUDGET_PD sy-vline 
WA_FCOV_ACCDOC_STR-HKONT sy-vline 
WA_FCOV_ACCDOC_STR-SAKNR sy-vline 
WA_FCOV_ACCDOC_STR-KUNNR sy-vline 
WA_FCOV_ACCDOC_STR-LIFNR sy-vline 
WA_FCOV_ACCDOC_STR-GSBER sy-vline 
WA_FCOV_ACCDOC_STR-AUFNR sy-vline 
WA_FCOV_ACCDOC_STR-MWSKZ sy-vline 
WA_FCOV_ACCDOC_STR-PERIO sy-vline 
WA_FCOV_ACCDOC_STR-OBJNR sy-vline 
WA_FCOV_ACCDOC_STR-PAOBJNR sy-vline 
WA_FCOV_ACCDOC_STR-KOSTL sy-vline 
WA_FCOV_ACCDOC_STR-LSTAR sy-vline 
WA_FCOV_ACCDOC_STR-PROJK sy-vline 
WA_FCOV_ACCDOC_STR-VERSN sy-vline 
WA_FCOV_ACCDOC_STR-KSTAR sy-vline 
WA_FCOV_ACCDOC_STR-HRKFT sy-vline 
WA_FCOV_ACCDOC_STR-VRGNG sy-vline 
WA_FCOV_ACCDOC_STR-VBUND sy-vline 
WA_FCOV_ACCDOC_STR-PARGB sy-vline 
WA_FCOV_ACCDOC_STR-BEKNZ sy-vline 
WA_FCOV_ACCDOC_STR-WRBTR sy-vline 
WA_FCOV_ACCDOC_STR-WAERS sy-vline 
WA_FCOV_ACCDOC_STR-DMBTR sy-vline 
WA_FCOV_ACCDOC_STR-HWAER sy-vline 
WA_FCOV_ACCDOC_STR-MENGE sy-vline 
WA_FCOV_ACCDOC_STR-MEINH sy-vline 
WA_FCOV_ACCDOC_STR-WTGBTR sy-vline 
WA_FCOV_ACCDOC_STR-TWAER sy-vline 
WA_FCOV_ACCDOC_STR-WOGBTR sy-vline 
WA_FCOV_ACCDOC_STR-OWAER sy-vline 
WA_FCOV_ACCDOC_STR-MEGBTR sy-vline 
WA_FCOV_ACCDOC_STR-MEINH_CO sy-vline      INTO ld_text SEPARATED BY SPACE.

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