ABAP Select data from SAP table TXW_VITAXD_DIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXW_VITAXD_DIST
*  INTO TABLE @DATA(IT_TXW_VITAXD_DIST2).
*--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_TXW_VITAXD_DIST INDEX 1 INTO DATA(WA_TXW_VITAXD_DIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXW_VITAXD_DIST>-MANDT = 1.
<TXW_VITAXD_DIST>-BUKRS = 1.
<TXW_VITAXD_DIST>-BELNR = 1.
<TXW_VITAXD_DIST>-AWTYP = 1.
<TXW_VITAXD_DIST>-AWREF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXW_VITAXD_DIST-AWORG, sy-vline,
  WA_TXW_VITAXD_DIST-POSNR, sy-vline,
  WA_TXW_VITAXD_DIST-R_AWTYP, sy-vline,
  WA_TXW_VITAXD_DIST-R_AWREF, sy-vline,
  WA_TXW_VITAXD_DIST-R_AWORG, sy-vline,
  WA_TXW_VITAXD_DIST-R_POSNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXW_VITAXD_DIST 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_TXW_VITAXD_DIST 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_TXW_VITAXD_DIST INTO WA_TXW_VITAXD_DIST.


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

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

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

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

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

*Conversion exit IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_TXW_VITAXD_DIST-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_VITAXD_DIST-IMKEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TXW_VITAXD_DIST-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_VITAXD_DIST-HKONT.
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_TXW_VITAXD_DIST_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
AWTYP TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
POSNR TYPE STRING,
R_AWTYP TYPE STRING,
R_AWREF TYPE STRING,
R_AWORG TYPE STRING,
R_POSNR TYPE STRING,
R_BUKRS TYPE STRING,
R_BELNR TYPE STRING,
WMWST TYPE STRING,
WAERS TYPE STRING,
AKONTO TYPE STRING,
RARTOPT TYPE STRING,
POPTS TYPE STRING,
INTRENO TYPE STRING,
IMKEY TYPE STRING,
OBJNR TYPE STRING,
MWSKZ TYPE STRING,
HKONT TYPE STRING,
VNAVFW TYPE STRING,
DABRZ TYPE STRING,
STFLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXW_VITAXD_DIST_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_TXW_VITAXD_DIST_STR-MANDT sy-vline 
WA_TXW_VITAXD_DIST_STR-BUKRS sy-vline 
WA_TXW_VITAXD_DIST_STR-BELNR sy-vline 
WA_TXW_VITAXD_DIST_STR-AWTYP sy-vline 
WA_TXW_VITAXD_DIST_STR-AWREF sy-vline 
WA_TXW_VITAXD_DIST_STR-AWORG sy-vline 
WA_TXW_VITAXD_DIST_STR-POSNR sy-vline 
WA_TXW_VITAXD_DIST_STR-R_AWTYP sy-vline 
WA_TXW_VITAXD_DIST_STR-R_AWREF sy-vline 
WA_TXW_VITAXD_DIST_STR-R_AWORG sy-vline 
WA_TXW_VITAXD_DIST_STR-R_POSNR sy-vline 
WA_TXW_VITAXD_DIST_STR-R_BUKRS sy-vline 
WA_TXW_VITAXD_DIST_STR-R_BELNR sy-vline 
WA_TXW_VITAXD_DIST_STR-WMWST sy-vline 
WA_TXW_VITAXD_DIST_STR-WAERS sy-vline 
WA_TXW_VITAXD_DIST_STR-AKONTO sy-vline 
WA_TXW_VITAXD_DIST_STR-RARTOPT sy-vline 
WA_TXW_VITAXD_DIST_STR-POPTS sy-vline 
WA_TXW_VITAXD_DIST_STR-INTRENO sy-vline 
WA_TXW_VITAXD_DIST_STR-IMKEY sy-vline 
WA_TXW_VITAXD_DIST_STR-OBJNR sy-vline 
WA_TXW_VITAXD_DIST_STR-MWSKZ sy-vline 
WA_TXW_VITAXD_DIST_STR-HKONT sy-vline 
WA_TXW_VITAXD_DIST_STR-VNAVFW sy-vline 
WA_TXW_VITAXD_DIST_STR-DABRZ sy-vline 
WA_TXW_VITAXD_DIST_STR-STFLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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