ABAP Select data from SAP table TCM_S_SUPPL_FRTINV_REQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TCM_S_SUPPL_FRTINV_REQ
*  INTO TABLE @DATA(IT_TCM_S_SUPPL_FRTINV_REQ2).
*--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_TCM_S_SUPPL_FRTINV_REQ INDEX 1 INTO DATA(WA_TCM_S_SUPPL_FRTINV_REQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TCM_S_SUPPL_FRTINV_REQ>-SFIR_ID = 1.
<TCM_S_SUPPL_FRTINV_REQ>-TYPE_CODE = 1.
<TCM_S_SUPPL_FRTINV_REQ>-COMP_CODE = 1.
<TCM_S_SUPPL_FRTINV_REQ>-PARTY = 1.
<TCM_S_SUPPL_FRTINV_REQ>-TOTAL_AMOUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TCM_S_SUPPL_FRTINV_REQ-DATE_TIME_PERIOD, sy-vline,
  WA_TCM_S_SUPPL_FRTINV_REQ-BTD_REF, sy-vline,
  WA_TCM_S_SUPPL_FRTINV_REQ-TRANSP_CHARGES, sy-vline,
  WA_TCM_S_SUPPL_FRTINV_REQ-CASH_DISCOUNT, sy-vline,
  WA_TCM_S_SUPPL_FRTINV_REQ-CASHDISCOUNT_TERMD_CD, sy-vline,
  WA_TCM_S_SUPPL_FRTINV_REQ-PAYMNTBALNDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TCM_S_SUPPL_FRTINV_REQ 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_TCM_S_SUPPL_FRTINV_REQ 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_TCM_S_SUPPL_FRTINV_REQ INTO WA_TCM_S_SUPPL_FRTINV_REQ.


*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 SFIR_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TCM_S_SUPPL_FRTINV_REQ-SFIR_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TCM_S_SUPPL_FRTINV_REQ-SFIR_ID.
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_TCM_S_SUPPL_FRTINV_REQ_STR, 
SFIR_ID TYPE STRING,
TYPE_CODE TYPE STRING,
COMP_CODE TYPE STRING,
PARTY TYPE STRING,
TOTAL_AMOUNT TYPE STRING,
DATE_TIME_PERIOD TYPE STRING,
BTD_REF TYPE STRING,
TRANSP_CHARGES TYPE STRING,
CASH_DISCOUNT TYPE STRING,
CASHDISCOUNT_TERMD_CD TYPE STRING,
PAYMNTBALNDT TYPE STRING,
DAYSVALUEMAX TYPE STRING,
PERCENTMAX TYPE STRING,
DAYSVALUENOR TYPE STRING,
PERCENTNOR TYPE STRING,
FULLPAYMDUEDY TYPE STRING,
EXCHANGE_RATE TYPE STRING,
CURRENCY TYPE STRING,
BTD_REFERENCE TYPE STRING,
LOCATION TYPE STRING,
TCM_ELEMENT TYPE STRING,
ITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TCM_S_SUPPL_FRTINV_REQ_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_TCM_S_SUPPL_FRTINV_REQ_STR-SFIR_ID sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-TYPE_CODE sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-COMP_CODE sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-PARTY sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-TOTAL_AMOUNT sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-DATE_TIME_PERIOD sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-BTD_REF sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-TRANSP_CHARGES sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-CASH_DISCOUNT sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-CASHDISCOUNT_TERMD_CD sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-PAYMNTBALNDT sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-DAYSVALUEMAX sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-PERCENTMAX sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-DAYSVALUENOR sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-PERCENTNOR sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-FULLPAYMDUEDY sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-EXCHANGE_RATE sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-CURRENCY sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-BTD_REFERENCE sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-LOCATION sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-TCM_ELEMENT sy-vline 
WA_TCM_S_SUPPL_FRTINV_REQ_STR-ITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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