ABAP Select data from SAP table FAC_ACC_DET_S_TRANS_KEY_HEADER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FAC_ACC_DET_S_TRANS_KEY_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 FAC_ACC_DET_S_TRANS_KEY_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 FAC_ACC_DET_S_TRANS_KEY_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_FAC_ACC_DET_S_TRANS_KEY_HEADER TYPE STANDARD TABLE OF FAC_ACC_DET_S_TRANS_KEY_HEADER,
      WA_FAC_ACC_DET_S_TRANS_KEY_HEADER TYPE FAC_ACC_DET_S_TRANS_KEY_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: <FAC_ACC_DET_S_TRANS_KEY_HEADER> TYPE FAC_ACC_DET_S_TRANS_KEY_HEADER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAC_ACC_DET_S_TRANS_KEY_HEADER
*  INTO TABLE @DATA(IT_FAC_ACC_DET_S_TRANS_KEY_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_FAC_ACC_DET_S_TRANS_KEY_HEADER INDEX 1 INTO DATA(WA_FAC_ACC_DET_S_TRANS_KEY_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAC_ACC_DET_S_TRANS_KEY_HEADER>-KAPPL = 1.
<FAC_ACC_DET_S_TRANS_KEY_HEADER>-GRUPP = 1.
<FAC_ACC_DET_S_TRANS_KEY_HEADER>-KTOSL = 1.
<FAC_ACC_DET_S_TRANS_KEY_HEADER>-XKONT = 1.
<FAC_ACC_DET_S_TRANS_KEY_HEADER>-XUMSK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAC_ACC_DET_S_TRANS_KEY_HEADER-XKOMO, sy-vline,
  WA_FAC_ACC_DET_S_TRANS_KEY_HEADER-XBWMO, sy-vline,
  WA_FAC_ACC_DET_S_TRANS_KEY_HEADER-XBKLA, sy-vline,
  WA_FAC_ACC_DET_S_TRANS_KEY_HEADER-XTBNM, sy-vline,
  WA_FAC_ACC_DET_S_TRANS_KEY_HEADER-XNOSH, sy-vline,
  WA_FAC_ACC_DET_S_TRANS_KEY_HEADER-LKOMO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAC_ACC_DET_S_TRANS_KEY_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_FAC_ACC_DET_S_TRANS_KEY_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_FAC_ACC_DET_S_TRANS_KEY_HEADER INTO WA_FAC_ACC_DET_S_TRANS_KEY_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.
ENDFORM. 

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

TYPES: BEGIN OF T_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR, 
KAPPL TYPE STRING,
GRUPP TYPE STRING,
KTOSL TYPE STRING,
XKONT TYPE STRING,
XUMSK TYPE STRING,
XKOMO TYPE STRING,
XBWMO TYPE STRING,
XBKLA TYPE STRING,
XTBNM TYPE STRING,
XNOSH TYPE STRING,
LKOMO TYPE STRING,
LBWMO TYPE STRING,
XLAND TYPE STRING,
TABNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAC_ACC_DET_S_TRANS_KEY_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_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-KAPPL sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-GRUPP sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-KTOSL sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-XKONT sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-XUMSK sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-XKOMO sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-XBWMO sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-XBKLA sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-XTBNM sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-XNOSH sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-LKOMO sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-LBWMO sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-XLAND sy-vline 
WA_FAC_ACC_DET_S_TRANS_KEY_HEADER_STR-TABNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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