ABAP Select data from SAP table /SCMTMS/S_TCC_TCH_HEADER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCMTMS/S_TCC_TCH_HEADER 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 /SCMTMS/S_TCC_TCH_HEADER. 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 /SCMTMS/S_TCC_TCH_HEADER 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_/SCMTMS/S_TCC_TCH_HEADER TYPE STANDARD TABLE OF /SCMTMS/S_TCC_TCH_HEADER,
      WA_/SCMTMS/S_TCC_TCH_HEADER TYPE /SCMTMS/S_TCC_TCH_HEADER,
      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: </SCMTMS/S_TCC_TCH_HEADER> TYPE /SCMTMS/S_TCC_TCH_HEADER.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCMTMS/S_TCC_TCH_HEADER
  INTO TABLE IT_/SCMTMS/S_TCC_TCH_HEADER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCMTMS/S_TCC_TCH_HEADER
*  INTO TABLE @DATA(IT_/SCMTMS/S_TCC_TCH_HEADER2).
*--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_/SCMTMS/S_TCC_TCH_HEADER INDEX 1 INTO DATA(WA_/SCMTMS/S_TCC_TCH_HEADER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCMTMS/S_TCC_TCH_HEADER ASSIGNING </SCMTMS/S_TCC_TCH_HEADER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCMTMS/S_TCC_TCH_HEADER>-TCUSAGECD085 = 1.
</SCMTMS/S_TCC_TCH_HEADER>-TCHARGESID086 = 1.
</SCMTMS/S_TCC_TCH_HEADER>-UUID = 1.
</SCMTMS/S_TCC_TCH_HEADER>-FAGRMNTID044 = 1.
</SCMTMS/S_TCC_TCH_HEADER>-FAGRMNT_ITEM_NO = 1.

ENDLOOP.

LOOP AT IT_/SCMTMS/S_TCC_TCH_HEADER INTO WA_/SCMTMS/S_TCC_TCH_HEADER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCMTMS/S_TCC_TCH_HEADER-FAGRMNTVSID045, sy-vline,
  WA_/SCMTMS/S_TCC_TCH_HEADER-TCCS_ID047, sy-vline,
  WA_/SCMTMS/S_TCC_TCH_HEADER-UUID020, sy-vline,
  WA_/SCMTMS/S_TCC_TCH_HEADER-UUID057, sy-vline,
  WA_/SCMTMS/S_TCC_TCH_HEADER-EXCH_RATE_TYPE, sy-vline,
  WA_/SCMTMS/S_TCC_TCH_HEADER-CALCULATION_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCMTMS/S_TCC_TCH_HEADER 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_/SCMTMS/S_TCC_TCH_HEADER 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_/SCMTMS/S_TCC_TCH_HEADER INTO WA_/SCMTMS/S_TCC_TCH_HEADER.


*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 FAGRMNTID044
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/S_TCC_TCH_HEADER-FAGRMNTID044
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/S_TCC_TCH_HEADER-FAGRMNTID044.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field TCCS_ID047
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/S_TCC_TCH_HEADER-TCCS_ID047
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/S_TCC_TCH_HEADER-TCCS_ID047.
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_/SCMTMS/S_TCC_TCH_HEADER_STR, 
TCUSAGECD085 TYPE STRING,
TCHARGESID086 TYPE STRING,
UUID TYPE STRING,
FAGRMNTID044 TYPE STRING,
FAGRMNT_ITEM_NO TYPE STRING,
FAGRMNTVSID045 TYPE STRING,
TCCS_ID047 TYPE STRING,
UUID020 TYPE STRING,
UUID057 TYPE STRING,
EXCH_RATE_TYPE TYPE STRING,
CALCULATION_DATE TYPE STRING,
EXCH_RATE_DATE TYPE STRING,
EXCH_RATE_DATE_LCL TYPE STRING,
FAG_FIXATION173 TYPE STRING,
TXC_KEY TYPE STRING,
TEXT_SCHEMA_ID TYPE STRING,
MERGE_INDICATOR TYPE STRING,
FAG_IT_KEY TYPE STRING,
EEW_TCH_ROOT TYPE STRING,
CALC_DATE_TSTMP TYPE STRING,
CALC_DATE_TZONE TYPE STRING,
AMOUNTINV TYPE STRING,
CURRCODE016INV TYPE STRING,
AMOUNTTIN TYPE STRING,
CURRCODE016TIN TYPE STRING,
AMOUNT TYPE STRING,
CURRCODE016 TYPE STRING,
AMOUNTLCL TYPE STRING,
CURRCODE016LCL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCMTMS/S_TCC_TCH_HEADER_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_/SCMTMS/S_TCC_TCH_HEADER_STR-TCUSAGECD085 sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-TCHARGESID086 sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-UUID sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-FAGRMNTID044 sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-FAGRMNT_ITEM_NO sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-FAGRMNTVSID045 sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-TCCS_ID047 sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-UUID020 sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-UUID057 sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-EXCH_RATE_TYPE sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-CALCULATION_DATE sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-EXCH_RATE_DATE sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-EXCH_RATE_DATE_LCL sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-FAG_FIXATION173 sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-TXC_KEY sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-TEXT_SCHEMA_ID sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-MERGE_INDICATOR sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-FAG_IT_KEY sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-EEW_TCH_ROOT sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-CALC_DATE_TSTMP sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-CALC_DATE_TZONE sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-AMOUNTINV sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-CURRCODE016INV sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-AMOUNTTIN sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-CURRCODE016TIN sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-AMOUNT sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-CURRCODE016 sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-AMOUNTLCL sy-vline 
WA_/SCMTMS/S_TCC_TCH_HEADER_STR-CURRCODE016LCL sy-vline      INTO ld_text SEPARATED BY SPACE.

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