ABAP Select data from SAP table FMKU_S_HEADER_TO_COBL into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMKU_S_HEADER_TO_COBL
*  INTO TABLE @DATA(IT_FMKU_S_HEADER_TO_COBL2).
*--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_FMKU_S_HEADER_TO_COBL INDEX 1 INTO DATA(WA_FMKU_S_HEADER_TO_COBL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMKU_S_HEADER_TO_COBL>-CLIENT = 1.
<FMKU_S_HEADER_TO_COBL>-FM_AREA = 1.
<FMKU_S_HEADER_TO_COBL>-DOCYEAR = 1.
<FMKU_S_HEADER_TO_COBL>-DOCNR = 1.
<FMKU_S_HEADER_TO_COBL>-PROCESS_UI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMKU_S_HEADER_TO_COBL-TECHORG, sy-vline,
  WA_FMKU_S_HEADER_TO_COBL-VERSION, sy-vline,
  WA_FMKU_S_HEADER_TO_COBL-DOCDATE, sy-vline,
  WA_FMKU_S_HEADER_TO_COBL-POSTDATE, sy-vline,
  WA_FMKU_S_HEADER_TO_COBL-REASON_REV, sy-vline,
  WA_FMKU_S_HEADER_TO_COBL-POSTING_PERIOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMKU_S_HEADER_TO_COBL 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_FMKU_S_HEADER_TO_COBL 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_FMKU_S_HEADER_TO_COBL INTO WA_FMKU_S_HEADER_TO_COBL.


*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 GJAHR, internal->external for field DOCYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMKU_S_HEADER_TO_COBL-DOCYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMKU_S_HEADER_TO_COBL-DOCYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field RCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMKU_S_HEADER_TO_COBL-RCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMKU_S_HEADER_TO_COBL-RCOMP.
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_FMKU_S_HEADER_TO_COBL_STR, 
CLIENT TYPE STRING,
FM_AREA TYPE STRING,
DOCYEAR TYPE STRING,
DOCNR TYPE STRING,
PROCESS_UI TYPE STRING,
TECHORG TYPE STRING,
VERSION TYPE STRING,
DOCDATE TYPE STRING,
POSTDATE TYPE STRING,
REASON_REV TYPE STRING,
POSTING_PERIOD TYPE STRING,
RESPPERS TYPE STRING,
DOCSTATE TYPE STRING,
REVSTATE TYPE STRING,
REV_REFNR TYPE STRING,
DOCTYPE TYPE STRING,
LOGSYS TYPE STRING,
COHORT TYPE STRING,
PUBLAW TYPE STRING,
LEGIS TYPE STRING,
TRANSFER_AGENCY TYPE STRING,
TRANSFER_ACCOUNT TYPE STRING,
RCOMP TYPE STRING,
FMFGUS_KEY TYPE STRING,
/SAPF15/STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMKU_S_HEADER_TO_COBL_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_FMKU_S_HEADER_TO_COBL_STR-CLIENT sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-FM_AREA sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-DOCYEAR sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-DOCNR sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-PROCESS_UI sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-TECHORG sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-VERSION sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-DOCDATE sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-POSTDATE sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-REASON_REV sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-POSTING_PERIOD sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-RESPPERS sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-DOCSTATE sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-REVSTATE sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-REV_REFNR sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-DOCTYPE sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-LOGSYS sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-COHORT sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-PUBLAW sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-LEGIS sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-TRANSFER_AGENCY sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-TRANSFER_ACCOUNT sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-RCOMP sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-FMFGUS_KEY sy-vline 
WA_FMKU_S_HEADER_TO_COBL_STR-/SAPF15/STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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