ABAP Select data from SAP table TXI_VBWF01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TXI_VBWF01 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 TXI_VBWF01. 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 TXI_VBWF01 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_TXI_VBWF01 TYPE STANDARD TABLE OF TXI_VBWF01,
      WA_TXI_VBWF01 TYPE TXI_VBWF01,
      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: <TXI_VBWF01> TYPE TXI_VBWF01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TXI_VBWF01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TXI_VBWF01
  INTO TABLE IT_TXI_VBWF01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXI_VBWF01
*  INTO TABLE @DATA(IT_TXI_VBWF012).
*--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_TXI_VBWF01 INDEX 1 INTO DATA(WA_TXI_VBWF012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TXI_VBWF01 ASSIGNING <TXI_VBWF01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXI_VBWF01>-MANDT = 1.
<TXI_VBWF01>-WFVAR = 1.
<TXI_VBWF01>-XWFBU = 1.
<TXI_VBWF01>-HWBWF = 1.
<TXI_VBWF01>-WAERS = 1.

ENDLOOP.

LOOP AT IT_TXI_VBWF01 INTO WA_TXI_VBWF01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXI_VBWF01-SUBNR, sy-vline,
  WA_TXI_VBWF01-VARBT, sy-vline,
  WA_TXI_VBWF01-VARGS, sy-vline,
  WA_TXI_VBWF01-XWFZG, sy-vline,
  WA_TXI_VBWF01-HWZWF, sy-vline,
  WA_TXI_VBWF01-VARZF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXI_VBWF01 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_TXI_VBWF01 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_TXI_VBWF01 INTO WA_TXI_VBWF01.


*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 AU132, internal->external for field HWBWF
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TXI_VBWF01-HWBWF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXI_VBWF01-HWBWF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field HWZWF
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TXI_VBWF01-HWZWF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXI_VBWF01-HWZWF.
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_TXI_VBWF01_STR, 
MANDT TYPE STRING,
WFVAR TYPE STRING,
XWFBU TYPE STRING,
HWBWF TYPE STRING,
WAERS TYPE STRING,
SUBNR TYPE STRING,
VARBT TYPE STRING,
VARGS TYPE STRING,
XWFZG TYPE STRING,
HWZWF TYPE STRING,
VARZF TYPE STRING,
XERRL TYPE STRING,
HWBWF_CY TYPE STRING,
HWZWF_CY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXI_VBWF01_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_TXI_VBWF01_STR-MANDT sy-vline 
WA_TXI_VBWF01_STR-WFVAR sy-vline 
WA_TXI_VBWF01_STR-XWFBU sy-vline 
WA_TXI_VBWF01_STR-HWBWF sy-vline 
WA_TXI_VBWF01_STR-WAERS sy-vline 
WA_TXI_VBWF01_STR-SUBNR sy-vline 
WA_TXI_VBWF01_STR-VARBT sy-vline 
WA_TXI_VBWF01_STR-VARGS sy-vline 
WA_TXI_VBWF01_STR-XWFZG sy-vline 
WA_TXI_VBWF01_STR-HWZWF sy-vline 
WA_TXI_VBWF01_STR-VARZF sy-vline 
WA_TXI_VBWF01_STR-XERRL sy-vline 
WA_TXI_VBWF01_STR-HWBWF_CY sy-vline 
WA_TXI_VBWF01_STR-HWZWF_CY sy-vline      INTO ld_text SEPARATED BY SPACE.

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