ABAP Select data from SAP table TXW_VEXAV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TXW_VEXAV 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_VEXAV. 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_VEXAV 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_VEXAV TYPE STANDARD TABLE OF TXW_VEXAV,
      WA_TXW_VEXAV TYPE TXW_VEXAV,
      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_VEXAV> TYPE TXW_VEXAV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXW_VEXAV
*  INTO TABLE @DATA(IT_TXW_VEXAV2).
*--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_VEXAV INDEX 1 INTO DATA(WA_TXW_VEXAV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXW_VEXAV>-MANDT = 1.
<TXW_VEXAV>-DATUMJAHR = 1.
<TXW_VEXAV>-DATUMMONA = 1.
<TXW_VEXAV>-ARRIVDEPA = 1.
<TXW_VEXAV>-LFDNRVEIA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXW_VEXAV-NUMMBUKRS, sy-vline,
  WA_TXW_VEXAV-USERNNAME, sy-vline,
  WA_TXW_VEXAV-SATZERDAT, sy-vline,
  WA_TXW_VEXAV-VERKAUFOR, sy-vline,
  WA_TXW_VEXAV-BELEGNUMR, sy-vline,
  WA_TXW_VEXAV-HAUPTPOSI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXW_VEXAV 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_VEXAV 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_VEXAV INTO WA_TXW_VEXAV.


*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 DATUMJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TXW_VEXAV-DATUMJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_VEXAV-DATUMJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field EIGENMAEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TXW_VEXAV-EIGENMAEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_VEXAV-EIGENMAEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BESONMAEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TXW_VEXAV-BESONMAEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_VEXAV-BESONMAEH.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_TXW_VEXAV-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_VEXAV-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TXW_VEXAV-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_VEXAV-KUNNR.
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_VEXAV_STR, 
MANDT TYPE STRING,
DATUMJAHR TYPE STRING,
DATUMMONA TYPE STRING,
ARRIVDEPA TYPE STRING,
LFDNRVEIA TYPE STRING,
NUMMBUKRS TYPE STRING,
USERNNAME TYPE STRING,
SATZERDAT TYPE STRING,
VERKAUFOR TYPE STRING,
BELEGNUMR TYPE STRING,
HAUPTPOSI TYPE STRING,
MATERIALN TYPE STRING,
FIRMENNUM TYPE STRING,
VERSENDER TYPE STRING,
HANDELSLD TYPE STRING,
BESTILAND TYPE STRING,
CONTAINER TYPE STRING,
STAATSZUG TYPE STRING,
ARTGESCHA TYPE STRING,
VERKEHRZW TYPE STRING,
EINLADFGH TYPE STRING,
STATWAREN TYPE STRING,
URSPRSLND TYPE STRING,
URSPRSREG TYPE STRING,
VERFAHREN TYPE STRING,
EIGENMASS TYPE STRING,
BESONMASS TYPE STRING,
GRENZWERT TYPE STRING,
RECHNWERT TYPE STRING,
VERAMONAT TYPE STRING,
RUECKERST TYPE STRING,
BEWIPFLIC TYPE STRING,
BEWINUMME TYPE STRING,
RETOURCOD TYPE STRING,
POSTLEITZ TYPE STRING,
NUMMWERKS TYPE STRING,
WERKSLAND TYPE STRING,
INLAIEVER TYPE STRING,
LIEFERBED TYPE STRING,
BESTIREGI TYPE STRING,
VERSENDLD TYPE STRING,
EINKAUFOR TYPE STRING,
FAKTDATUM TYPE STRING,
PREFPACOD TYPE STRING,
THIERISCH TYPE STRING,
RECHNWEAK TYPE STRING,
RECHNWEEH TYPE STRING,
GRENZWEAK TYPE STRING,
GRENZWEEH TYPE STRING,
EIGENMAAK TYPE STRING,
EIGENMAEH TYPE STRING,
BESONMAAK TYPE STRING,
BESONMAEH TYPE STRING,
IREFBELEG TYPE STRING,
IREFPOSIT TYPE STRING,
IREFMONAT TYPE STRING,
IREFEJAHR TYPE STRING,
BELEGIDEN TYPE STRING,
GENES TYPE STRING,
P_LANDKEY TYPE STRING,
FLAGEUROC TYPE STRING,
KUNDEUINR TYPE STRING,
EIGENUINR TYPE STRING,
WARENORTE TYPE STRING,
STAATSABG TYPE STRING,
SPANIENID TYPE STRING,
PLISO TYPE STRING,
DOMCODENR TYPE STRING,
MATNR TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
ORDPA TYPE STRING,
ISESSIONE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXW_VEXAV_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_VEXAV_STR-MANDT sy-vline 
WA_TXW_VEXAV_STR-DATUMJAHR sy-vline 
WA_TXW_VEXAV_STR-DATUMMONA sy-vline 
WA_TXW_VEXAV_STR-ARRIVDEPA sy-vline 
WA_TXW_VEXAV_STR-LFDNRVEIA sy-vline 
WA_TXW_VEXAV_STR-NUMMBUKRS sy-vline 
WA_TXW_VEXAV_STR-USERNNAME sy-vline 
WA_TXW_VEXAV_STR-SATZERDAT sy-vline 
WA_TXW_VEXAV_STR-VERKAUFOR sy-vline 
WA_TXW_VEXAV_STR-BELEGNUMR sy-vline 
WA_TXW_VEXAV_STR-HAUPTPOSI sy-vline 
WA_TXW_VEXAV_STR-MATERIALN sy-vline 
WA_TXW_VEXAV_STR-FIRMENNUM sy-vline 
WA_TXW_VEXAV_STR-VERSENDER sy-vline 
WA_TXW_VEXAV_STR-HANDELSLD sy-vline 
WA_TXW_VEXAV_STR-BESTILAND sy-vline 
WA_TXW_VEXAV_STR-CONTAINER sy-vline 
WA_TXW_VEXAV_STR-STAATSZUG sy-vline 
WA_TXW_VEXAV_STR-ARTGESCHA sy-vline 
WA_TXW_VEXAV_STR-VERKEHRZW sy-vline 
WA_TXW_VEXAV_STR-EINLADFGH sy-vline 
WA_TXW_VEXAV_STR-STATWAREN sy-vline 
WA_TXW_VEXAV_STR-URSPRSLND sy-vline 
WA_TXW_VEXAV_STR-URSPRSREG sy-vline 
WA_TXW_VEXAV_STR-VERFAHREN sy-vline 
WA_TXW_VEXAV_STR-EIGENMASS sy-vline 
WA_TXW_VEXAV_STR-BESONMASS sy-vline 
WA_TXW_VEXAV_STR-GRENZWERT sy-vline 
WA_TXW_VEXAV_STR-RECHNWERT sy-vline 
WA_TXW_VEXAV_STR-VERAMONAT sy-vline 
WA_TXW_VEXAV_STR-RUECKERST sy-vline 
WA_TXW_VEXAV_STR-BEWIPFLIC sy-vline 
WA_TXW_VEXAV_STR-BEWINUMME sy-vline 
WA_TXW_VEXAV_STR-RETOURCOD sy-vline 
WA_TXW_VEXAV_STR-POSTLEITZ sy-vline 
WA_TXW_VEXAV_STR-NUMMWERKS sy-vline 
WA_TXW_VEXAV_STR-WERKSLAND sy-vline 
WA_TXW_VEXAV_STR-INLAIEVER sy-vline 
WA_TXW_VEXAV_STR-LIEFERBED sy-vline 
WA_TXW_VEXAV_STR-BESTIREGI sy-vline 
WA_TXW_VEXAV_STR-VERSENDLD sy-vline 
WA_TXW_VEXAV_STR-EINKAUFOR sy-vline 
WA_TXW_VEXAV_STR-FAKTDATUM sy-vline 
WA_TXW_VEXAV_STR-PREFPACOD sy-vline 
WA_TXW_VEXAV_STR-THIERISCH sy-vline 
WA_TXW_VEXAV_STR-RECHNWEAK sy-vline 
WA_TXW_VEXAV_STR-RECHNWEEH sy-vline 
WA_TXW_VEXAV_STR-GRENZWEAK sy-vline 
WA_TXW_VEXAV_STR-GRENZWEEH sy-vline 
WA_TXW_VEXAV_STR-EIGENMAAK sy-vline 
WA_TXW_VEXAV_STR-EIGENMAEH sy-vline 
WA_TXW_VEXAV_STR-BESONMAAK sy-vline 
WA_TXW_VEXAV_STR-BESONMAEH sy-vline 
WA_TXW_VEXAV_STR-IREFBELEG sy-vline 
WA_TXW_VEXAV_STR-IREFPOSIT sy-vline 
WA_TXW_VEXAV_STR-IREFMONAT sy-vline 
WA_TXW_VEXAV_STR-IREFEJAHR sy-vline 
WA_TXW_VEXAV_STR-BELEGIDEN sy-vline 
WA_TXW_VEXAV_STR-GENES sy-vline 
WA_TXW_VEXAV_STR-P_LANDKEY sy-vline 
WA_TXW_VEXAV_STR-FLAGEUROC sy-vline 
WA_TXW_VEXAV_STR-KUNDEUINR sy-vline 
WA_TXW_VEXAV_STR-EIGENUINR sy-vline 
WA_TXW_VEXAV_STR-WARENORTE sy-vline 
WA_TXW_VEXAV_STR-STAATSABG sy-vline 
WA_TXW_VEXAV_STR-SPANIENID sy-vline 
WA_TXW_VEXAV_STR-PLISO sy-vline 
WA_TXW_VEXAV_STR-DOMCODENR sy-vline 
WA_TXW_VEXAV_STR-MATNR sy-vline 
WA_TXW_VEXAV_STR-LIFNR sy-vline 
WA_TXW_VEXAV_STR-KUNNR sy-vline 
WA_TXW_VEXAV_STR-ORDPA sy-vline 
WA_TXW_VEXAV_STR-ISESSIONE sy-vline      INTO ld_text SEPARATED BY SPACE.

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