ABAP Select data from SAP table TFACD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TFACD
*  INTO TABLE @DATA(IT_TFACD2).
*--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_TFACD INDEX 1 INTO DATA(WA_TFACD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TFACD>-IDENT = 1.
<TFACD>-VJAHR = 1.
<TFACD>-BJAHR = 1.
<TFACD>-MOTAG = 1.
<TFACD>-DITAG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TFACD-MIWCH, sy-vline,
  WA_TFACD-DOTAG, sy-vline,
  WA_TFACD-FRTAG, sy-vline,
  WA_TFACD-SATAG, sy-vline,
  WA_TFACD-SOTAG, sy-vline,
  WA_TFACD-FETAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TFACD 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_TFACD 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_TFACD INTO WA_TFACD.


*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 GJAHR, internal->external for field VJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TFACD-VJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TFACD-VJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field BJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TFACD-BJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TFACD-BJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field AKTVJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TFACD-AKTVJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TFACD-AKTVJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field AKTBJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TFACD-AKTBJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TFACD-AKTBJAHR.
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_TFACD_STR, 
IDENT TYPE STRING,
VJAHR TYPE STRING,
BJAHR TYPE STRING,
MOTAG TYPE STRING,
DITAG TYPE STRING,
MIWCH TYPE STRING,
DOTAG TYPE STRING,
FRTAG TYPE STRING,
SATAG TYPE STRING,
SOTAG TYPE STRING,
FETAG TYPE STRING,
HOCID TYPE STRING,
BASIS TYPE STRING,
ABBR TYPE STRING,
CRUSR TYPE STRING,
CRDAT TYPE STRING,
CRTIME TYPE STRING,
INTERV TYPE STRING,
AKTVJAHR TYPE STRING,
AKTBJAHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TFACD_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_TFACD_STR-IDENT sy-vline 
WA_TFACD_STR-VJAHR sy-vline 
WA_TFACD_STR-BJAHR sy-vline 
WA_TFACD_STR-MOTAG sy-vline 
WA_TFACD_STR-DITAG sy-vline 
WA_TFACD_STR-MIWCH sy-vline 
WA_TFACD_STR-DOTAG sy-vline 
WA_TFACD_STR-FRTAG sy-vline 
WA_TFACD_STR-SATAG sy-vline 
WA_TFACD_STR-SOTAG sy-vline 
WA_TFACD_STR-FETAG sy-vline 
WA_TFACD_STR-HOCID sy-vline 
WA_TFACD_STR-BASIS sy-vline 
WA_TFACD_STR-ABBR sy-vline 
WA_TFACD_STR-CRUSR sy-vline 
WA_TFACD_STR-CRDAT sy-vline 
WA_TFACD_STR-CRTIME sy-vline 
WA_TFACD_STR-INTERV sy-vline 
WA_TFACD_STR-AKTVJAHR sy-vline 
WA_TFACD_STR-AKTBJAHR sy-vline      INTO ld_text SEPARATED BY SPACE.

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