ABAP Select data from SAP table FAA_S_DOC_HEADER_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAA_S_DOC_HEADER_DATA
*  INTO TABLE @DATA(IT_FAA_S_DOC_HEADER_DATA2).
*--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_FAA_S_DOC_HEADER_DATA INDEX 1 INTO DATA(WA_FAA_S_DOC_HEADER_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAA_S_DOC_HEADER_DATA>-BLDAT = 1.
<FAA_S_DOC_HEADER_DATA>-CPUDT = 1.
<FAA_S_DOC_HEADER_DATA>-CPUTM = 1.
<FAA_S_DOC_HEADER_DATA>-USNAM = 1.
<FAA_S_DOC_HEADER_DATA>-TCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAA_S_DOC_HEADER_DATA-SGTXT, sy-vline,
  WA_FAA_S_DOC_HEADER_DATA-XBLNR, sy-vline,
  WA_FAA_S_DOC_HEADER_DATA-ZUONR, sy-vline,
  WA_FAA_S_DOC_HEADER_DATA-OBART, sy-vline,
  WA_FAA_S_DOC_HEADER_DATA-OBJID, sy-vline,
  WA_FAA_S_DOC_HEADER_DATA-TRAVA_PN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAA_S_DOC_HEADER_DATA 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_FAA_S_DOC_HEADER_DATA 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_FAA_S_DOC_HEADER_DATA INTO WA_FAA_S_DOC_HEADER_DATA.


*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 TRAVA_PN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAA_S_DOC_HEADER_DATA-TRAVA_PN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAA_S_DOC_HEADER_DATA-TRAVA_PN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2_PN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAA_S_DOC_HEADER_DATA-ANLN2_PN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAA_S_DOC_HEADER_DATA-ANLN2_PN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ANBTR_PN
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_FAA_S_DOC_HEADER_DATA-ANBTR_PN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAA_S_DOC_HEADER_DATA-ANBTR_PN.
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_FAA_S_DOC_HEADER_DATA_STR, 
BLDAT TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
USNAM TYPE STRING,
TCODE TYPE STRING,
SGTXT TYPE STRING,
XBLNR TYPE STRING,
ZUONR TYPE STRING,
OBART TYPE STRING,
OBJID TYPE STRING,
TRAVA_PN TYPE STRING,
LDGRPSPEC_PN TYPE STRING,
AFABESPEC_PN TYPE STRING,
ANLN2_PN TYPE STRING,
BWASL_PN TYPE STRING,
BZDAT_PN TYPE STRING,
UBZDT_PN TYPE STRING,
XVABG_PN TYPE STRING,
ANBTR_PN TYPE STRING,
PROZS_PN TYPE STRING,
XMANPROPVAL_PN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAA_S_DOC_HEADER_DATA_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_FAA_S_DOC_HEADER_DATA_STR-BLDAT sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-CPUDT sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-CPUTM sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-USNAM sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-TCODE sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-SGTXT sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-XBLNR sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-ZUONR sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-OBART sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-OBJID sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-TRAVA_PN sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-LDGRPSPEC_PN sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-AFABESPEC_PN sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-ANLN2_PN sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-BWASL_PN sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-BZDAT_PN sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-UBZDT_PN sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-XVABG_PN sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-ANBTR_PN sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-PROZS_PN sy-vline 
WA_FAA_S_DOC_HEADER_DATA_STR-XMANPROPVAL_PN sy-vline      INTO ld_text SEPARATED BY SPACE.

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