ABAP Select data from SAP table FIS_GL_ACC_COMPCODE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIS_GL_ACC_COMPCODE
*  INTO TABLE @DATA(IT_FIS_GL_ACC_COMPCODE2).
*--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_FIS_GL_ACC_COMPCODE INDEX 1 INTO DATA(WA_FIS_GL_ACC_COMPCODE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIS_GL_ACC_COMPCODE>-MANDT = 1.
<FIS_GL_ACC_COMPCODE>-SAKNR = 1.
<FIS_GL_ACC_COMPCODE>-BUKRS = 1.
<FIS_GL_ACC_COMPCODE>-MITKZ = 1.
<FIS_GL_ACC_COMPCODE>-XKRES = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIS_GL_ACC_COMPCODE-XOPVW, sy-vline,
  WA_FIS_GL_ACC_COMPCODE-ALTKT, sy-vline,
  WA_FIS_GL_ACC_COMPCODE-ZUAWA, sy-vline,
  WA_FIS_GL_ACC_COMPCODE-BEGRU, sy-vline,
  WA_FIS_GL_ACC_COMPCODE-BUSAB, sy-vline,
  WA_FIS_GL_ACC_COMPCODE-DATLZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIS_GL_ACC_COMPCODE 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_FIS_GL_ACC_COMPCODE 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_FIS_GL_ACC_COMPCODE INTO WA_FIS_GL_ACC_COMPCODE.


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

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

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

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_FIS_GL_ACC_COMPCODE-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIS_GL_ACC_COMPCODE-FIPOS.
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_FIS_GL_ACC_COMPCODE_STR, 
MANDT TYPE STRING,
SAKNR TYPE STRING,
BUKRS TYPE STRING,
MITKZ TYPE STRING,
XKRES TYPE STRING,
XOPVW TYPE STRING,
ALTKT TYPE STRING,
ZUAWA TYPE STRING,
BEGRU TYPE STRING,
BUSAB TYPE STRING,
DATLZ TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
WAERS TYPE STRING,
RECID TYPE STRING,
TOGRU TYPE STRING,
HKTID TYPE STRING,
VZSKZ TYPE STRING,
MWSKZ TYPE STRING,
XINTB TYPE STRING,
XNKON TYPE STRING,
XSALH TYPE STRING,
XMWNO TYPE STRING,
ZINDT TYPE STRING,
WMETH TYPE STRING,
BEWGP TYPE STRING,
FIPOS TYPE STRING,
FDLEV TYPE STRING,
ZINRT TYPE STRING,
HBKID TYPE STRING,
LAND1 TYPE STRING,
KTOPL TYPE STRING,
FIKRS TYPE STRING,
KTOP2 TYPE STRING,
LANDX TYPE STRING,
KDFSL TYPE STRING,
KOKRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIS_GL_ACC_COMPCODE_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_FIS_GL_ACC_COMPCODE_STR-MANDT sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-SAKNR sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-BUKRS sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-MITKZ sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-XKRES sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-XOPVW sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-ALTKT sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-ZUAWA sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-BEGRU sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-BUSAB sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-DATLZ sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-ERDAT sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-ERNAM sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-WAERS sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-RECID sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-TOGRU sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-HKTID sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-VZSKZ sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-MWSKZ sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-XINTB sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-XNKON sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-XSALH sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-XMWNO sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-ZINDT sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-WMETH sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-BEWGP sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-FIPOS sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-FDLEV sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-ZINRT sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-HBKID sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-LAND1 sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-KTOPL sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-FIKRS sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-KTOP2 sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-LANDX sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-KDFSL sy-vline 
WA_FIS_GL_ACC_COMPCODE_STR-KOKRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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