ABAP Select data from SAP table TCMF5EXT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TCMF5EXT 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 TCMF5EXT. 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 TCMF5EXT 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_TCMF5EXT TYPE STANDARD TABLE OF TCMF5EXT,
      WA_TCMF5EXT TYPE TCMF5EXT,
      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: <TCMF5EXT> TYPE TCMF5EXT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TCMF5EXT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TCMF5EXT
  INTO TABLE IT_TCMF5EXT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TCMF5EXT
*  INTO TABLE @DATA(IT_TCMF5EXT2).
*--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_TCMF5EXT INDEX 1 INTO DATA(WA_TCMF5EXT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TCMF5EXT ASSIGNING <TCMF5EXT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TCMF5EXT>-OBJECT_ID = 1.
<TCMF5EXT>-S_MATNR = 1.
<TCMF5EXT>-S_WERKS = 1.
<TCMF5EXT>-S_DISST = 1.
<TCMF5EXT>-S_POSNR = 1.

ENDLOOP.

LOOP AT IT_TCMF5EXT INTO WA_TCMF5EXT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TCMF5EXT-S_PLNTY, sy-vline,
  WA_TCMF5EXT-S_PLNNR, sy-vline,
  WA_TCMF5EXT-S_PLNAL, sy-vline,
  WA_TCMF5EXT-S_PLNFL, sy-vline,
  WA_TCMF5EXT-S_VORNR, sy-vline,
  WA_TCMF5EXT-S_AUFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TCMF5EXT 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_TCMF5EXT 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_TCMF5EXT INTO WA_TCMF5EXT.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TCMF5EXT_STR, 
OBJECT_ID TYPE STRING,
S_MATNR TYPE STRING,
S_WERKS TYPE STRING,
S_DISST TYPE STRING,
S_POSNR TYPE STRING,
S_PLNTY TYPE STRING,
S_PLNNR TYPE STRING,
S_PLNAL TYPE STRING,
S_PLNFL TYPE STRING,
S_VORNR TYPE STRING,
S_AUFNR TYPE STRING,
S_PLNUM TYPE STRING,
S_ARBGB TYPE STRING,
S_MSGTY TYPE STRING,
S_MSGNR TYPE STRING,
S_MSGTX TYPE STRING,
S_VEBE TYPE STRING,
S_VBSPZ TYPE STRING,
S_GRU1 TYPE STRING,
S_GRU2 TYPE STRING,
S_SYFKZ TYPE STRING,
S_TYPE TYPE STRING,
S_SUBOBJ TYPE STRING,
OBJECTSTRU TYPE STRING,
SUBOBJSTRU TYPE STRING,
PROGNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TCMF5EXT_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_TCMF5EXT_STR-OBJECT_ID sy-vline 
WA_TCMF5EXT_STR-S_MATNR sy-vline 
WA_TCMF5EXT_STR-S_WERKS sy-vline 
WA_TCMF5EXT_STR-S_DISST sy-vline 
WA_TCMF5EXT_STR-S_POSNR sy-vline 
WA_TCMF5EXT_STR-S_PLNTY sy-vline 
WA_TCMF5EXT_STR-S_PLNNR sy-vline 
WA_TCMF5EXT_STR-S_PLNAL sy-vline 
WA_TCMF5EXT_STR-S_PLNFL sy-vline 
WA_TCMF5EXT_STR-S_VORNR sy-vline 
WA_TCMF5EXT_STR-S_AUFNR sy-vline 
WA_TCMF5EXT_STR-S_PLNUM sy-vline 
WA_TCMF5EXT_STR-S_ARBGB sy-vline 
WA_TCMF5EXT_STR-S_MSGTY sy-vline 
WA_TCMF5EXT_STR-S_MSGNR sy-vline 
WA_TCMF5EXT_STR-S_MSGTX sy-vline 
WA_TCMF5EXT_STR-S_VEBE sy-vline 
WA_TCMF5EXT_STR-S_VBSPZ sy-vline 
WA_TCMF5EXT_STR-S_GRU1 sy-vline 
WA_TCMF5EXT_STR-S_GRU2 sy-vline 
WA_TCMF5EXT_STR-S_SYFKZ sy-vline 
WA_TCMF5EXT_STR-S_TYPE sy-vline 
WA_TCMF5EXT_STR-S_SUBOBJ sy-vline 
WA_TCMF5EXT_STR-OBJECTSTRU sy-vline 
WA_TCMF5EXT_STR-SUBOBJSTRU sy-vline 
WA_TCMF5EXT_STR-PROGNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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