ABAP Select data from SAP table TFCUPM042F into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TFCUPM042F 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 TFCUPM042F. 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 TFCUPM042F 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_TFCUPM042F TYPE STANDARD TABLE OF TFCUPM042F,
      WA_TFCUPM042F TYPE TFCUPM042F,
      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: <TFCUPM042F> TYPE TFCUPM042F.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TFCUPM042F.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TFCUPM042F
  INTO TABLE IT_TFCUPM042F.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TFCUPM042F
*  INTO TABLE @DATA(IT_TFCUPM042F2).
*--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_TFCUPM042F INDEX 1 INTO DATA(WA_TFCUPM042F2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TFCUPM042F ASSIGNING <TFCUPM042F>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TFCUPM042F>-MANDT = 1.
<TFCUPM042F>-FORMI = 1.
<TFCUPM042F>-XPRI1 = 1.
<TFCUPM042F>-XPRI2 = 1.
<TFCUPM042F>-XDME1 = 1.

ENDLOOP.

LOOP AT IT_TFCUPM042F INTO WA_TFCUPM042F.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TFCUPM042F-XLST1, sy-vline,
  WA_TFCUPM042F-LAND1, sy-vline,
  WA_TFCUPM042F-BEANZ, sy-vline,
  WA_TFCUPM042F-FORME, sy-vline,
  WA_TFCUPM042F-FORMD, sy-vline,
  WA_TFCUPM042F-DTTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TFCUPM042F 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_TFCUPM042F 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_TFCUPM042F INTO WA_TFCUPM042F.


*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 FCUPM, internal->external for field FORMI
CALL FUNCTION 'CONVERSION_EXIT_FCUPM_OUTPUT'
  EXPORTING
    input =                      WA_TFCUPM042F-FORMI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TFCUPM042F-FORMI.
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_TFCUPM042F_STR, 
MANDT TYPE STRING,
FORMI TYPE STRING,
XPRI1 TYPE STRING,
XPRI2 TYPE STRING,
XDME1 TYPE STRING,
XLST1 TYPE STRING,
LAND1 TYPE STRING,
BEANZ TYPE STRING,
FORME TYPE STRING,
FORMD TYPE STRING,
DTTYP TYPE STRING,
XDMEE TYPE STRING,
FORMT TYPE STRING,
TREE_ID TYPE STRING,
XAPPLICATION_AREA TYPE STRING,
APPLICATION_AREA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TFCUPM042F_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_TFCUPM042F_STR-MANDT sy-vline 
WA_TFCUPM042F_STR-FORMI sy-vline 
WA_TFCUPM042F_STR-XPRI1 sy-vline 
WA_TFCUPM042F_STR-XPRI2 sy-vline 
WA_TFCUPM042F_STR-XDME1 sy-vline 
WA_TFCUPM042F_STR-XLST1 sy-vline 
WA_TFCUPM042F_STR-LAND1 sy-vline 
WA_TFCUPM042F_STR-BEANZ sy-vline 
WA_TFCUPM042F_STR-FORME sy-vline 
WA_TFCUPM042F_STR-FORMD sy-vline 
WA_TFCUPM042F_STR-DTTYP sy-vline 
WA_TFCUPM042F_STR-XDMEE sy-vline 
WA_TFCUPM042F_STR-FORMT sy-vline 
WA_TFCUPM042F_STR-TREE_ID sy-vline 
WA_TFCUPM042F_STR-XAPPLICATION_AREA sy-vline 
WA_TFCUPM042F_STR-APPLICATION_AREA sy-vline      INTO ld_text SEPARATED BY SPACE.

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