ABAP Select data from SAP table FCML4H_OBJECT_LIST_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FCML4H_OBJECT_LIST_S 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 FCML4H_OBJECT_LIST_S. 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 FCML4H_OBJECT_LIST_S 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_FCML4H_OBJECT_LIST_S TYPE STANDARD TABLE OF FCML4H_OBJECT_LIST_S,
      WA_FCML4H_OBJECT_LIST_S TYPE FCML4H_OBJECT_LIST_S,
      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: <FCML4H_OBJECT_LIST_S> TYPE FCML4H_OBJECT_LIST_S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FCML4H_OBJECT_LIST_S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FCML4H_OBJECT_LIST_S
  INTO TABLE IT_FCML4H_OBJECT_LIST_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCML4H_OBJECT_LIST_S
*  INTO TABLE @DATA(IT_FCML4H_OBJECT_LIST_S2).
*--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_FCML4H_OBJECT_LIST_S INDEX 1 INTO DATA(WA_FCML4H_OBJECT_LIST_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FCML4H_OBJECT_LIST_S ASSIGNING <FCML4H_OBJECT_LIST_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCML4H_OBJECT_LIST_S>-EBELN = 1.
<FCML4H_OBJECT_LIST_S>-EBELP = 1.
<FCML4H_OBJECT_LIST_S>-LIFNR = 1.
<FCML4H_OBJECT_LIST_S>-KOSTL = 1.
<FCML4H_OBJECT_LIST_S>-AUFNR = 1.

ENDLOOP.

LOOP AT IT_FCML4H_OBJECT_LIST_S INTO WA_FCML4H_OBJECT_LIST_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCML4H_OBJECT_LIST_S-AUFPS, sy-vline,
  WA_FCML4H_OBJECT_LIST_S-KDAUF, sy-vline,
  WA_FCML4H_OBJECT_LIST_S-KDPOS, sy-vline,
  WA_FCML4H_OBJECT_LIST_S-ANLN1, sy-vline,
  WA_FCML4H_OBJECT_LIST_S-ANLN2, sy-vline,
  WA_FCML4H_OBJECT_LIST_S-UMMAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCML4H_OBJECT_LIST_S 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_FCML4H_OBJECT_LIST_S 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_FCML4H_OBJECT_LIST_S INTO WA_FCML4H_OBJECT_LIST_S.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCML4H_OBJECT_LIST_S-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCML4H_OBJECT_LIST_S-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCML4H_OBJECT_LIST_S-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCML4H_OBJECT_LIST_S-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCML4H_OBJECT_LIST_S-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCML4H_OBJECT_LIST_S-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCML4H_OBJECT_LIST_S-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCML4H_OBJECT_LIST_S-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCML4H_OBJECT_LIST_S-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCML4H_OBJECT_LIST_S-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCML4H_OBJECT_LIST_S-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCML4H_OBJECT_LIST_S-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCML4H_OBJECT_LIST_S-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCML4H_OBJECT_LIST_S-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field UMMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_FCML4H_OBJECT_LIST_S-UMMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCML4H_OBJECT_LIST_S-UMMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAT_KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCML4H_OBJECT_LIST_S-MAT_KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCML4H_OBJECT_LIST_S-MAT_KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_FCML4H_OBJECT_LIST_S-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCML4H_OBJECT_LIST_S-PSPNR.
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_FCML4H_OBJECT_LIST_S_STR, 
EBELN TYPE STRING,
EBELP TYPE STRING,
LIFNR TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
AUFPS TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
UMMAT TYPE STRING,
UMWRK TYPE STRING,
UMLGO TYPE STRING,
UMCHA TYPE STRING,
MAT_KDAUF TYPE STRING,
MAT_KDPOS TYPE STRING,
PSPNR TYPE STRING,
KSTRG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCML4H_OBJECT_LIST_S_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_FCML4H_OBJECT_LIST_S_STR-EBELN sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-EBELP sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-LIFNR sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-KOSTL sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-AUFNR sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-AUFPS sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-KDAUF sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-KDPOS sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-ANLN1 sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-ANLN2 sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-UMMAT sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-UMWRK sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-UMLGO sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-UMCHA sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-MAT_KDAUF sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-MAT_KDPOS sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-PSPNR sy-vline 
WA_FCML4H_OBJECT_LIST_S_STR-KSTRG sy-vline      INTO ld_text SEPARATED BY SPACE.

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