ABAP Select data from SAP table WTYBW_VERSION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WTYBW_VERSION
*  INTO TABLE @DATA(IT_WTYBW_VERSION2).
*--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_WTYBW_VERSION INDEX 1 INTO DATA(WA_WTYBW_VERSION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WTYBW_VERSION>-HEADER_GUID = 1.
<WTYBW_VERSION>-PNGUID = 1.
<WTYBW_VERSION>-KATEG = 1.
<WTYBW_VERSION>-V_REJCD = 1.
<WTYBW_VERSION>-VENDOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WTYBW_VERSION-CUSTOMER, sy-vline,
  WA_WTYBW_VERSION-V_PARVW, sy-vline,
  WA_WTYBW_VERSION-AKTIV, sy-vline,
  WA_WTYBW_VERSION-FKDAT, sy-vline,
  WA_WTYBW_VERSION-V_CRNCY, sy-vline,
  WA_WTYBW_VERSION-PRSDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WTYBW_VERSION 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_WTYBW_VERSION 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_WTYBW_VERSION INTO WA_WTYBW_VERSION.


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

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

*Conversion exit PARVW, internal->external for field V_PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_WTYBW_VERSION-V_PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WTYBW_VERSION-V_PARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSK
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_WTYBW_VERSION-KURSK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WTYBW_VERSION-KURSK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SDVBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WTYBW_VERSION-SDVBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WTYBW_VERSION-SDVBELN.
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_WTYBW_VERSION_STR, 
HEADER_GUID TYPE STRING,
PNGUID TYPE STRING,
KATEG TYPE STRING,
V_REJCD TYPE STRING,
VENDOR TYPE STRING,
CUSTOMER TYPE STRING,
V_PARVW TYPE STRING,
AKTIV TYPE STRING,
FKDAT TYPE STRING,
V_CRNCY TYPE STRING,
PRSDT TYPE STRING,
KURSK TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
REVERSAL TYPE STRING,
EKORG TYPE STRING,
SDVBELN TYPE STRING,
SDPOSNR TYPE STRING,
REFDT_VERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WTYBW_VERSION_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_WTYBW_VERSION_STR-HEADER_GUID sy-vline 
WA_WTYBW_VERSION_STR-PNGUID sy-vline 
WA_WTYBW_VERSION_STR-KATEG sy-vline 
WA_WTYBW_VERSION_STR-V_REJCD sy-vline 
WA_WTYBW_VERSION_STR-VENDOR sy-vline 
WA_WTYBW_VERSION_STR-CUSTOMER sy-vline 
WA_WTYBW_VERSION_STR-V_PARVW sy-vline 
WA_WTYBW_VERSION_STR-AKTIV sy-vline 
WA_WTYBW_VERSION_STR-FKDAT sy-vline 
WA_WTYBW_VERSION_STR-V_CRNCY sy-vline 
WA_WTYBW_VERSION_STR-PRSDT sy-vline 
WA_WTYBW_VERSION_STR-KURSK sy-vline 
WA_WTYBW_VERSION_STR-VKORG sy-vline 
WA_WTYBW_VERSION_STR-VTWEG sy-vline 
WA_WTYBW_VERSION_STR-SPART sy-vline 
WA_WTYBW_VERSION_STR-REVERSAL sy-vline 
WA_WTYBW_VERSION_STR-EKORG sy-vline 
WA_WTYBW_VERSION_STR-SDVBELN sy-vline 
WA_WTYBW_VERSION_STR-SDPOSNR sy-vline 
WA_WTYBW_VERSION_STR-REFDT_VERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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