ABAP Select data from SAP table FKK_GL20_ALV 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 FKK_GL20_ALV 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 FKK_GL20_ALV. 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 FKK_GL20_ALV 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_FKK_GL20_ALV TYPE STANDARD TABLE OF FKK_GL20_ALV,
      WA_FKK_GL20_ALV TYPE FKK_GL20_ALV,
      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: <FKK_GL20_ALV> TYPE FKK_GL20_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FKK_GL20_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FKK_GL20_ALV
  INTO TABLE IT_FKK_GL20_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_GL20_ALV
*  INTO TABLE @DATA(IT_FKK_GL20_ALV2).
*--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_FKK_GL20_ALV INDEX 1 INTO DATA(WA_FKK_GL20_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FKK_GL20_ALV ASSIGNING <FKK_GL20_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_GL20_ALV>-BUKRS = 1.
<FKK_GL20_ALV>-GSBER = 1.
<FKK_GL20_ALV>-SEGMENT = 1.
<FKK_GL20_ALV>-HKONT = 1.
<FKK_GL20_ALV>-FIKEY = 1.

ENDLOOP.

LOOP AT IT_FKK_GL20_ALV INTO WA_FKK_GL20_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_GL20_ALV-BLDAT, sy-vline,
  WA_FKK_GL20_ALV-LDGRP, sy-vline,
  WA_FKK_GL20_ALV-STPRZ, sy-vline,
  WA_FKK_GL20_ALV-MWSKZ, sy-vline,
  WA_FKK_GL20_ALV-KTOSL, sy-vline,
  WA_FKK_GL20_ALV-KSCHL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_GL20_ALV 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_FKK_GL20_ALV 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_FKK_GL20_ALV INTO WA_FKK_GL20_ALV.


*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 SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-VBUND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-FIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field BUDGETYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-BUDGETYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-BUDGETYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-OPBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_GL20_ALV-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_GL20_ALV-BELNR.
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_FKK_GL20_ALV_STR, 
BUKRS TYPE STRING,
GSBER TYPE STRING,
SEGMENT TYPE STRING,
HKONT TYPE STRING,
FIKEY TYPE STRING,
BLDAT TYPE STRING,
LDGRP TYPE STRING,
STPRZ TYPE STRING,
MWSKZ TYPE STRING,
KTOSL TYPE STRING,
KSCHL TYPE STRING,
TXJCD TYPE STRING,
TXJCO TYPE STRING,
TXDAT TYPE STRING,
TXDAT_FROM TYPE STRING,
TAX_COUNTRY TYPE STRING,
TXCNT TYPE STRING,
BUPLA TYPE STRING,
VBUND TYPE STRING,
KONTT TYPE STRING,
KONTL TYPE STRING,
XNEGP TYPE STRING,
PAOBJNR TYPE STRING,
PASUBNR TYPE STRING,
SUMSZ_C TYPE STRING,
FMTYP TYPE STRING,
ORIGFIKRS TYPE STRING,
FIPEX TYPE STRING,
FISTL TYPE STRING,
FONDS TYPE STRING,
FKBER TYPE STRING,
MEASURE TYPE STRING,
GRANT_NBR TYPE STRING,
BUDGETYEAR TYPE STRING,
BUDGET_PD TYPE STRING,
KOSTL TYPE STRING,
PRCTR TYPE STRING,
AUFNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
PS_PSP_PNR TYPE STRING,
FDLEV TYPE STRING,
MONAT TYPE STRING,
BUDAT TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
BETRH TYPE STRING,
HWAER TYPE STRING,
BETR2 TYPE STRING,
HWAE2 TYPE STRING,
BETR3 TYPE STRING,
HWAE3 TYPE STRING,
SBASW TYPE STRING,
SBASH TYPE STRING,
SCTAX TYPE STRING,
STTAX TYPE STRING,
PSWSL TYPE STRING,
PSWBT TYPE STRING,
HBBLA TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
SQUAN TYPE STRING,
GJAHR TYPE STRING,
OPBEL TYPE STRING,
OPUPK TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
CPUDT TYPE STRING,
AWKEY TYPE STRING,
SHKZG TYPE STRING,
KHASH TYPE STRING,
XSTEZ TYPE STRING,
VALUT TYPE STRING,
KORRL TYPE STRING,
UEKLV TYPE STRING,
UEBUD TYPE STRING,
SNPER TYPE STRING,
SUMSZ TYPE STRING,
XKONTNEU TYPE STRING,
REVSR TYPE STRING,
XNEGK TYPE STRING,
NDTAX TYPE STRING,
NDTXH TYPE STRING,
XNDTX TYPE STRING,
BELTP TYPE STRING,
LAYOUT TYPE STRING,
EXCP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_GL20_ALV_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_FKK_GL20_ALV_STR-BUKRS sy-vline 
WA_FKK_GL20_ALV_STR-GSBER sy-vline 
WA_FKK_GL20_ALV_STR-SEGMENT sy-vline 
WA_FKK_GL20_ALV_STR-HKONT sy-vline 
WA_FKK_GL20_ALV_STR-FIKEY sy-vline 
WA_FKK_GL20_ALV_STR-BLDAT sy-vline 
WA_FKK_GL20_ALV_STR-LDGRP sy-vline 
WA_FKK_GL20_ALV_STR-STPRZ sy-vline 
WA_FKK_GL20_ALV_STR-MWSKZ sy-vline 
WA_FKK_GL20_ALV_STR-KTOSL sy-vline 
WA_FKK_GL20_ALV_STR-KSCHL sy-vline 
WA_FKK_GL20_ALV_STR-TXJCD sy-vline 
WA_FKK_GL20_ALV_STR-TXJCO sy-vline 
WA_FKK_GL20_ALV_STR-TXDAT sy-vline 
WA_FKK_GL20_ALV_STR-TXDAT_FROM sy-vline 
WA_FKK_GL20_ALV_STR-TAX_COUNTRY sy-vline 
WA_FKK_GL20_ALV_STR-TXCNT sy-vline 
WA_FKK_GL20_ALV_STR-BUPLA sy-vline 
WA_FKK_GL20_ALV_STR-VBUND sy-vline 
WA_FKK_GL20_ALV_STR-KONTT sy-vline 
WA_FKK_GL20_ALV_STR-KONTL sy-vline 
WA_FKK_GL20_ALV_STR-XNEGP sy-vline 
WA_FKK_GL20_ALV_STR-PAOBJNR sy-vline 
WA_FKK_GL20_ALV_STR-PASUBNR sy-vline 
WA_FKK_GL20_ALV_STR-SUMSZ_C sy-vline 
WA_FKK_GL20_ALV_STR-FMTYP sy-vline 
WA_FKK_GL20_ALV_STR-ORIGFIKRS sy-vline 
WA_FKK_GL20_ALV_STR-FIPEX sy-vline 
WA_FKK_GL20_ALV_STR-FISTL sy-vline 
WA_FKK_GL20_ALV_STR-FONDS sy-vline 
WA_FKK_GL20_ALV_STR-FKBER sy-vline 
WA_FKK_GL20_ALV_STR-MEASURE sy-vline 
WA_FKK_GL20_ALV_STR-GRANT_NBR sy-vline 
WA_FKK_GL20_ALV_STR-BUDGETYEAR sy-vline 
WA_FKK_GL20_ALV_STR-BUDGET_PD sy-vline 
WA_FKK_GL20_ALV_STR-KOSTL sy-vline 
WA_FKK_GL20_ALV_STR-PRCTR sy-vline 
WA_FKK_GL20_ALV_STR-AUFNR sy-vline 
WA_FKK_GL20_ALV_STR-KDAUF sy-vline 
WA_FKK_GL20_ALV_STR-KDPOS sy-vline 
WA_FKK_GL20_ALV_STR-KDEIN sy-vline 
WA_FKK_GL20_ALV_STR-PS_PSP_PNR sy-vline 
WA_FKK_GL20_ALV_STR-FDLEV sy-vline 
WA_FKK_GL20_ALV_STR-MONAT sy-vline 
WA_FKK_GL20_ALV_STR-BUDAT sy-vline 
WA_FKK_GL20_ALV_STR-BETRW sy-vline 
WA_FKK_GL20_ALV_STR-WAERS sy-vline 
WA_FKK_GL20_ALV_STR-BETRH sy-vline 
WA_FKK_GL20_ALV_STR-HWAER sy-vline 
WA_FKK_GL20_ALV_STR-BETR2 sy-vline 
WA_FKK_GL20_ALV_STR-HWAE2 sy-vline 
WA_FKK_GL20_ALV_STR-BETR3 sy-vline 
WA_FKK_GL20_ALV_STR-HWAE3 sy-vline 
WA_FKK_GL20_ALV_STR-SBASW sy-vline 
WA_FKK_GL20_ALV_STR-SBASH sy-vline 
WA_FKK_GL20_ALV_STR-SCTAX sy-vline 
WA_FKK_GL20_ALV_STR-STTAX sy-vline 
WA_FKK_GL20_ALV_STR-PSWSL sy-vline 
WA_FKK_GL20_ALV_STR-PSWBT sy-vline 
WA_FKK_GL20_ALV_STR-HBBLA sy-vline 
WA_FKK_GL20_ALV_STR-MENGE sy-vline 
WA_FKK_GL20_ALV_STR-MEINS sy-vline 
WA_FKK_GL20_ALV_STR-SQUAN sy-vline 
WA_FKK_GL20_ALV_STR-GJAHR sy-vline 
WA_FKK_GL20_ALV_STR-OPBEL sy-vline 
WA_FKK_GL20_ALV_STR-OPUPK sy-vline 
WA_FKK_GL20_ALV_STR-BELNR sy-vline 
WA_FKK_GL20_ALV_STR-BUZEI sy-vline 
WA_FKK_GL20_ALV_STR-CPUDT sy-vline 
WA_FKK_GL20_ALV_STR-AWKEY sy-vline 
WA_FKK_GL20_ALV_STR-SHKZG sy-vline 
WA_FKK_GL20_ALV_STR-KHASH sy-vline 
WA_FKK_GL20_ALV_STR-XSTEZ sy-vline 
WA_FKK_GL20_ALV_STR-VALUT sy-vline 
WA_FKK_GL20_ALV_STR-KORRL sy-vline 
WA_FKK_GL20_ALV_STR-UEKLV sy-vline 
WA_FKK_GL20_ALV_STR-UEBUD sy-vline 
WA_FKK_GL20_ALV_STR-SNPER sy-vline 
WA_FKK_GL20_ALV_STR-SUMSZ sy-vline 
WA_FKK_GL20_ALV_STR-XKONTNEU sy-vline 
WA_FKK_GL20_ALV_STR-REVSR sy-vline 
WA_FKK_GL20_ALV_STR-XNEGK sy-vline 
WA_FKK_GL20_ALV_STR-NDTAX sy-vline 
WA_FKK_GL20_ALV_STR-NDTXH sy-vline 
WA_FKK_GL20_ALV_STR-XNDTX sy-vline 
WA_FKK_GL20_ALV_STR-BELTP sy-vline 
WA_FKK_GL20_ALV_STR-LAYOUT sy-vline 
WA_FKK_GL20_ALV_STR-EXCP sy-vline      INTO ld_text SEPARATED BY SPACE.

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