ABAP Select data from SAP table WINT_POS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WINT_POS
*  INTO TABLE @DATA(IT_WINT_POS2).
*--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_WINT_POS INDEX 1 INTO DATA(WA_WINT_POS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WINT_POS>-FLAG = 1.
<WINT_POS>-KORR = 1.
<WINT_POS>-OK = 1.
<WINT_POS>-MEINS = 1.
<WINT_POS>-MANDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WINT_POS-SKOPF, sy-vline,
  WA_WINT_POS-SPOSI, sy-vline,
  WA_WINT_POS-DATUB, sy-vline,
  WA_WINT_POS-DATUV, sy-vline,
  WA_WINT_POS-LVORM, sy-vline,
  WA_WINT_POS-ERSDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WINT_POS 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_WINT_POS 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_WINT_POS INTO WA_WINT_POS.


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

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

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

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

*Conversion exit ALPHA, internal->external for field ASORT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WINT_POS-ASORT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WINT_POS-ASORT.
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_WINT_POS_STR, 
FLAG TYPE STRING,
KORR TYPE STRING,
OK TYPE STRING,
MEINS TYPE STRING,
MANDT TYPE STRING,
SKOPF TYPE STRING,
SPOSI TYPE STRING,
DATUB TYPE STRING,
DATUV TYPE STRING,
LVORM TYPE STRING,
ERSDA TYPE STRING,
ERNAM TYPE STRING,
NEGAT TYPE STRING,
PFLKN TYPE STRING,
URSAC TYPE STRING,
SATNR TYPE STRING,
LSTFL TYPE STRING,
ATFSA TYPE STRING,
KZFSA TYPE STRING,
SSTUF TYPE STRING,
LSTVZ TYPE STRING,
WERKS TYPE STRING,
STRLI TYPE STRING,
SSTAT TYPE STRING,
ASORT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WINT_POS_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_WINT_POS_STR-FLAG sy-vline 
WA_WINT_POS_STR-KORR sy-vline 
WA_WINT_POS_STR-OK sy-vline 
WA_WINT_POS_STR-MEINS sy-vline 
WA_WINT_POS_STR-MANDT sy-vline 
WA_WINT_POS_STR-SKOPF sy-vline 
WA_WINT_POS_STR-SPOSI sy-vline 
WA_WINT_POS_STR-DATUB sy-vline 
WA_WINT_POS_STR-DATUV sy-vline 
WA_WINT_POS_STR-LVORM sy-vline 
WA_WINT_POS_STR-ERSDA sy-vline 
WA_WINT_POS_STR-ERNAM sy-vline 
WA_WINT_POS_STR-NEGAT sy-vline 
WA_WINT_POS_STR-PFLKN sy-vline 
WA_WINT_POS_STR-URSAC sy-vline 
WA_WINT_POS_STR-SATNR sy-vline 
WA_WINT_POS_STR-LSTFL sy-vline 
WA_WINT_POS_STR-ATFSA sy-vline 
WA_WINT_POS_STR-KZFSA sy-vline 
WA_WINT_POS_STR-SSTUF sy-vline 
WA_WINT_POS_STR-LSTVZ sy-vline 
WA_WINT_POS_STR-WERKS sy-vline 
WA_WINT_POS_STR-STRLI sy-vline 
WA_WINT_POS_STR-SSTAT sy-vline 
WA_WINT_POS_STR-ASORT sy-vline      INTO ld_text SEPARATED BY SPACE.

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