ABAP Select data from SAP table FKKORDGR_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKKORDGR_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 FKKORDGR_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 FKKORDGR_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_FKKORDGR_ALV TYPE STANDARD TABLE OF FKKORDGR_ALV,
      WA_FKKORDGR_ALV TYPE FKKORDGR_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: <FKKORDGR_ALV> TYPE FKKORDGR_ALV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKORDGR_ALV
*  INTO TABLE @DATA(IT_FKKORDGR_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_FKKORDGR_ALV INDEX 1 INTO DATA(WA_FKKORDGR_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKORDGR_ALV>-ORDNR = 1.
<FKKORDGR_ALV>-ORDTYPTEXT = 1.
<FKKORDGR_ALV>-DOC_DATE = 1.
<FKKORDGR_ALV>-APPROVED = 1.
<FKKORDGR_ALV>-REVID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKORDGR_ALV-ERNAM, sy-vline,
  WA_FKKORDGR_ALV-CPUDT, sy-vline,
  WA_FKKORDGR_ALV-BLART, sy-vline,
  WA_FKKORDGR_ALV-OPBEL, sy-vline,
  WA_FKKORDGR_ALV-BUDAT, sy-vline,
  WA_FKKORDGR_ALV-AUGST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKORDGR_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_FKKORDGR_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_FKKORDGR_ALV INTO WA_FKKORDGR_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 ORDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKORDGR_ALV-ORDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKORDGR_ALV-ORDNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field STORB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKORDGR_ALV-STORB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKORDGR_ALV-STORB.
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_FKKORDGR_ALV_STR, 
ORDNR TYPE STRING,
ORDTYPTEXT TYPE STRING,
DOC_DATE TYPE STRING,
APPROVED TYPE STRING,
REVID TYPE STRING,
ERNAM TYPE STRING,
CPUDT TYPE STRING,
BLART TYPE STRING,
OPBEL TYPE STRING,
BUDAT TYPE STRING,
AUGST TYPE STRING,
AUGBL TYPE STRING,
AUGBT TYPE STRING,
AUGWA TYPE STRING,
OPBEL_PAYM TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
STORB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKORDGR_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_FKKORDGR_ALV_STR-ORDNR sy-vline 
WA_FKKORDGR_ALV_STR-ORDTYPTEXT sy-vline 
WA_FKKORDGR_ALV_STR-DOC_DATE sy-vline 
WA_FKKORDGR_ALV_STR-APPROVED sy-vline 
WA_FKKORDGR_ALV_STR-REVID sy-vline 
WA_FKKORDGR_ALV_STR-ERNAM sy-vline 
WA_FKKORDGR_ALV_STR-CPUDT sy-vline 
WA_FKKORDGR_ALV_STR-BLART sy-vline 
WA_FKKORDGR_ALV_STR-OPBEL sy-vline 
WA_FKKORDGR_ALV_STR-BUDAT sy-vline 
WA_FKKORDGR_ALV_STR-AUGST sy-vline 
WA_FKKORDGR_ALV_STR-AUGBL sy-vline 
WA_FKKORDGR_ALV_STR-AUGBT sy-vline 
WA_FKKORDGR_ALV_STR-AUGWA sy-vline 
WA_FKKORDGR_ALV_STR-OPBEL_PAYM sy-vline 
WA_FKKORDGR_ALV_STR-BETRW sy-vline 
WA_FKKORDGR_ALV_STR-WAERS sy-vline 
WA_FKKORDGR_ALV_STR-STORB sy-vline      INTO ld_text SEPARATED BY SPACE.

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