ABAP Select data from SAP table IBKK_GLSFI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKK_GLSFI
*  INTO TABLE @DATA(IT_IBKK_GLSFI2).
*--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_IBKK_GLSFI INDEX 1 INTO DATA(WA_IBKK_GLSFI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKK_GLSFI>-FIDOC = 1.
<IBKK_GLSFI>-MANDT = 1.
<IBKK_GLSFI>-BKKRS = 1.
<IBKK_GLSFI>-FIKEY = 1.
<IBKK_GLSFI>-FIKEYC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKK_GLSFI-DOCNO, sy-vline,
  WA_IBKK_GLSFI-BUDAT, sy-vline,
  WA_IBKK_GLSFI-WAERS, sy-vline,
  WA_IBKK_GLSFI-HKONT, sy-vline,
  WA_IBKK_GLSFI-SHKZG, sy-vline,
  WA_IBKK_GLSFI-SUMSZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKK_GLSFI 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_IBKK_GLSFI 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_IBKK_GLSFI INTO WA_IBKK_GLSFI.


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

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_GLSFI-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_GLSFI-VBUND.
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_IBKK_GLSFI_STR, 
FIDOC TYPE STRING,
MANDT TYPE STRING,
BKKRS TYPE STRING,
FIKEY TYPE STRING,
FIKEYC TYPE STRING,
DOCNO TYPE STRING,
BUDAT TYPE STRING,
WAERS TYPE STRING,
HKONT TYPE STRING,
SHKZG TYPE STRING,
SUMSZ TYPE STRING,
GL_SUMSZ TYPE STRING,
BUDAT_GL TYPE STRING,
VALUT TYPE STRING,
A_AMOUNT TYPE STRING,
MWSKZ TYPE STRING,
TAXIT TYPE STRING,
KTOSL TYPE STRING,
GSBER TYPE STRING,
VBUND TYPE STRING,
ZUONR TYPE STRING,
WWERT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKK_GLSFI_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_IBKK_GLSFI_STR-FIDOC sy-vline 
WA_IBKK_GLSFI_STR-MANDT sy-vline 
WA_IBKK_GLSFI_STR-BKKRS sy-vline 
WA_IBKK_GLSFI_STR-FIKEY sy-vline 
WA_IBKK_GLSFI_STR-FIKEYC sy-vline 
WA_IBKK_GLSFI_STR-DOCNO sy-vline 
WA_IBKK_GLSFI_STR-BUDAT sy-vline 
WA_IBKK_GLSFI_STR-WAERS sy-vline 
WA_IBKK_GLSFI_STR-HKONT sy-vline 
WA_IBKK_GLSFI_STR-SHKZG sy-vline 
WA_IBKK_GLSFI_STR-SUMSZ sy-vline 
WA_IBKK_GLSFI_STR-GL_SUMSZ sy-vline 
WA_IBKK_GLSFI_STR-BUDAT_GL sy-vline 
WA_IBKK_GLSFI_STR-VALUT sy-vline 
WA_IBKK_GLSFI_STR-A_AMOUNT sy-vline 
WA_IBKK_GLSFI_STR-MWSKZ sy-vline 
WA_IBKK_GLSFI_STR-TAXIT sy-vline 
WA_IBKK_GLSFI_STR-KTOSL sy-vline 
WA_IBKK_GLSFI_STR-GSBER sy-vline 
WA_IBKK_GLSFI_STR-VBUND sy-vline 
WA_IBKK_GLSFI_STR-ZUONR sy-vline 
WA_IBKK_GLSFI_STR-WWERT sy-vline      INTO ld_text SEPARATED BY SPACE.

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