ABAP Select data from SAP table FKK_FIKEY_GL_POS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKK_FIKEY_GL_POS 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_FIKEY_GL_POS. 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_FIKEY_GL_POS 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_FIKEY_GL_POS TYPE STANDARD TABLE OF FKK_FIKEY_GL_POS,
      WA_FKK_FIKEY_GL_POS TYPE FKK_FIKEY_GL_POS,
      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_FIKEY_GL_POS> TYPE FKK_FIKEY_GL_POS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_FIKEY_GL_POS
*  INTO TABLE @DATA(IT_FKK_FIKEY_GL_POS2).
*--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_FIKEY_GL_POS INDEX 1 INTO DATA(WA_FKK_FIKEY_GL_POS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_FIKEY_GL_POS>-BUKRS = 1.
<FKK_FIKEY_GL_POS>-FIKEY = 1.
<FKK_FIKEY_GL_POS>-AWREF = 1.
<FKK_FIKEY_GL_POS>-AWORG = 1.
<FKK_FIKEY_GL_POS>-GSBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_FIKEY_GL_POS-SEGMENT, sy-vline,
  WA_FKK_FIKEY_GL_POS-LDGRP, sy-vline,
  WA_FKK_FIKEY_GL_POS-HKONT, sy-vline,
  WA_FKK_FIKEY_GL_POS-MWSKZ, sy-vline,
  WA_FKK_FIKEY_GL_POS-WAERS, sy-vline,
  WA_FKK_FIKEY_GL_POS-WRBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_FIKEY_GL_POS 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_FIKEY_GL_POS 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_FIKEY_GL_POS INTO WA_FKK_FIKEY_GL_POS.


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

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

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

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

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

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

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

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

*Conversion exit AU132, internal->external for field DMBE2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FKK_FIKEY_GL_POS-DMBE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_FIKEY_GL_POS-DMBE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field H2BAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FKK_FIKEY_GL_POS-H2BAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_FIKEY_GL_POS-H2BAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FKK_FIKEY_GL_POS-DMBE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_FIKEY_GL_POS-DMBE3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field H3BAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FKK_FIKEY_GL_POS-H3BAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_FIKEY_GL_POS-H3BAS.
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_FIKEY_GL_POS_STR, 
BUKRS TYPE STRING,
FIKEY TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
GSBER TYPE STRING,
SEGMENT TYPE STRING,
LDGRP TYPE STRING,
HKONT TYPE STRING,
MWSKZ TYPE STRING,
WAERS TYPE STRING,
WRBTR TYPE STRING,
FWBAS TYPE STRING,
HWAER TYPE STRING,
DMBTR TYPE STRING,
HWBAS TYPE STRING,
PSWBT TYPE STRING,
PSWSL TYPE STRING,
HWAE2 TYPE STRING,
DMBE2 TYPE STRING,
H2BAS TYPE STRING,
HWAE3 TYPE STRING,
DMBE3 TYPE STRING,
H3BAS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_FIKEY_GL_POS_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_FIKEY_GL_POS_STR-BUKRS sy-vline 
WA_FKK_FIKEY_GL_POS_STR-FIKEY sy-vline 
WA_FKK_FIKEY_GL_POS_STR-AWREF sy-vline 
WA_FKK_FIKEY_GL_POS_STR-AWORG sy-vline 
WA_FKK_FIKEY_GL_POS_STR-GSBER sy-vline 
WA_FKK_FIKEY_GL_POS_STR-SEGMENT sy-vline 
WA_FKK_FIKEY_GL_POS_STR-LDGRP sy-vline 
WA_FKK_FIKEY_GL_POS_STR-HKONT sy-vline 
WA_FKK_FIKEY_GL_POS_STR-MWSKZ sy-vline 
WA_FKK_FIKEY_GL_POS_STR-WAERS sy-vline 
WA_FKK_FIKEY_GL_POS_STR-WRBTR sy-vline 
WA_FKK_FIKEY_GL_POS_STR-FWBAS sy-vline 
WA_FKK_FIKEY_GL_POS_STR-HWAER sy-vline 
WA_FKK_FIKEY_GL_POS_STR-DMBTR sy-vline 
WA_FKK_FIKEY_GL_POS_STR-HWBAS sy-vline 
WA_FKK_FIKEY_GL_POS_STR-PSWBT sy-vline 
WA_FKK_FIKEY_GL_POS_STR-PSWSL sy-vline 
WA_FKK_FIKEY_GL_POS_STR-HWAE2 sy-vline 
WA_FKK_FIKEY_GL_POS_STR-DMBE2 sy-vline 
WA_FKK_FIKEY_GL_POS_STR-H2BAS sy-vline 
WA_FKK_FIKEY_GL_POS_STR-HWAE3 sy-vline 
WA_FKK_FIKEY_GL_POS_STR-DMBE3 sy-vline 
WA_FKK_FIKEY_GL_POS_STR-H3BAS sy-vline      INTO ld_text SEPARATED BY SPACE.

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