ABAP Select data from SAP table FKK_DOCCHECK_GL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKK_DOCCHECK_GL 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_DOCCHECK_GL. 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_DOCCHECK_GL 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_DOCCHECK_GL TYPE STANDARD TABLE OF FKK_DOCCHECK_GL,
      WA_FKK_DOCCHECK_GL TYPE FKK_DOCCHECK_GL,
      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_DOCCHECK_GL> TYPE FKK_DOCCHECK_GL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_DOCCHECK_GL
*  INTO TABLE @DATA(IT_FKK_DOCCHECK_GL2).
*--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_DOCCHECK_GL INDEX 1 INTO DATA(WA_FKK_DOCCHECK_GL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_DOCCHECK_GL>-OPBEL = 1.
<FKK_DOCCHECK_GL>-OPUPK = 1.
<FKK_DOCCHECK_GL>-BUKRS = 1.
<FKK_DOCCHECK_GL>-LDGRP = 1.
<FKK_DOCCHECK_GL>-HKONT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_DOCCHECK_GL-BETRW, sy-vline,
  WA_FKK_DOCCHECK_GL-WAERS, sy-vline,
  WA_FKK_DOCCHECK_GL-BETRH, sy-vline,
  WA_FKK_DOCCHECK_GL-HWAER, sy-vline,
  WA_FKK_DOCCHECK_GL-BETR2, sy-vline,
  WA_FKK_DOCCHECK_GL-BETR3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_DOCCHECK_GL 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_DOCCHECK_GL 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_DOCCHECK_GL INTO WA_FKK_DOCCHECK_GL.


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

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

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

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

*Conversion exit GJAHR, internal->external for field BUDGETYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FKK_DOCCHECK_GL-BUDGETYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_DOCCHECK_GL-BUDGETYEAR.
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_DOCCHECK_GL_STR, 
OPBEL TYPE STRING,
OPUPK TYPE STRING,
BUKRS TYPE STRING,
LDGRP TYPE STRING,
HKONT TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
BETRH TYPE STRING,
HWAER TYPE STRING,
BETR2 TYPE STRING,
BETR3 TYPE STRING,
AUGBT TYPE STRING,
AUGWA TYPE STRING,
AUGBL TYPE STRING,
AUGBD TYPE STRING,
BUPLA TYPE STRING,
MWSKZ TYPE STRING,
STPRZ TYPE STRING,
SBASW TYPE STRING,
SBASH TYPE STRING,
KTOSL TYPE STRING,
NDTAX TYPE STRING,
NDTXH TYPE STRING,
XNDTX TYPE STRING,
AASTA TYPE STRING,
ORIGFIKRS TYPE STRING,
FMTYP TYPE STRING,
FIPEX TYPE STRING,
BUDGETYEAR TYPE STRING,
PSWSL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_DOCCHECK_GL_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_DOCCHECK_GL_STR-OPBEL sy-vline 
WA_FKK_DOCCHECK_GL_STR-OPUPK sy-vline 
WA_FKK_DOCCHECK_GL_STR-BUKRS sy-vline 
WA_FKK_DOCCHECK_GL_STR-LDGRP sy-vline 
WA_FKK_DOCCHECK_GL_STR-HKONT sy-vline 
WA_FKK_DOCCHECK_GL_STR-BETRW sy-vline 
WA_FKK_DOCCHECK_GL_STR-WAERS sy-vline 
WA_FKK_DOCCHECK_GL_STR-BETRH sy-vline 
WA_FKK_DOCCHECK_GL_STR-HWAER sy-vline 
WA_FKK_DOCCHECK_GL_STR-BETR2 sy-vline 
WA_FKK_DOCCHECK_GL_STR-BETR3 sy-vline 
WA_FKK_DOCCHECK_GL_STR-AUGBT sy-vline 
WA_FKK_DOCCHECK_GL_STR-AUGWA sy-vline 
WA_FKK_DOCCHECK_GL_STR-AUGBL sy-vline 
WA_FKK_DOCCHECK_GL_STR-AUGBD sy-vline 
WA_FKK_DOCCHECK_GL_STR-BUPLA sy-vline 
WA_FKK_DOCCHECK_GL_STR-MWSKZ sy-vline 
WA_FKK_DOCCHECK_GL_STR-STPRZ sy-vline 
WA_FKK_DOCCHECK_GL_STR-SBASW sy-vline 
WA_FKK_DOCCHECK_GL_STR-SBASH sy-vline 
WA_FKK_DOCCHECK_GL_STR-KTOSL sy-vline 
WA_FKK_DOCCHECK_GL_STR-NDTAX sy-vline 
WA_FKK_DOCCHECK_GL_STR-NDTXH sy-vline 
WA_FKK_DOCCHECK_GL_STR-XNDTX sy-vline 
WA_FKK_DOCCHECK_GL_STR-AASTA sy-vline 
WA_FKK_DOCCHECK_GL_STR-ORIGFIKRS sy-vline 
WA_FKK_DOCCHECK_GL_STR-FMTYP sy-vline 
WA_FKK_DOCCHECK_GL_STR-FIPEX sy-vline 
WA_FKK_DOCCHECK_GL_STR-BUDGETYEAR sy-vline 
WA_FKK_DOCCHECK_GL_STR-PSWSL sy-vline      INTO ld_text SEPARATED BY SPACE.

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