ABAP Select data from SAP table WINT_LOC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WINT_LOC 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_LOC. 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_LOC 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_LOC TYPE STANDARD TABLE OF WINT_LOC,
      WA_WINT_LOC TYPE WINT_LOC,
      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_LOC> TYPE WINT_LOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WINT_LOC
*  INTO TABLE @DATA(IT_WINT_LOC2).
*--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_LOC INDEX 1 INTO DATA(WA_WINT_LOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WINT_LOC>-OK = 1.
<WINT_LOC>-ACCEPT = 1.
<WINT_LOC>-WCODE = 1.
<WINT_LOC>-IA_LIST_IN = 1.
<WINT_LOC>-ARTNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WINT_LOC-ASORT, sy-vline,
  WA_WINT_LOC-SKOPF, sy-vline,
  WA_WINT_LOC-VLFKZ, sy-vline,
  WA_WINT_LOC-PLUMI, sy-vline,
  WA_WINT_LOC-DATAB, sy-vline,
  WA_WINT_LOC-DATUB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WINT_LOC 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_LOC 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_LOC INTO WA_WINT_LOC.


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

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

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

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

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WINT_LOC-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WINT_LOC-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_WINT_LOC_STR, 
OK TYPE STRING,
ACCEPT TYPE STRING,
WCODE TYPE STRING,
IA_LIST_IN TYPE STRING,
ARTNR TYPE STRING,
ASORT TYPE STRING,
SKOPF TYPE STRING,
VLFKZ TYPE STRING,
PLUMI TYPE STRING,
DATAB TYPE STRING,
DATUB TYPE STRING,
ASS_CODE TYPE STRING,
TIME_CODE TYPE STRING,
LIST_EXC TYPE STRING,
PFLKN TYPE STRING,
SATNR TYPE STRING,
LSTFL TYPE STRING,
SSTUF TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
WERKS TYPE STRING,
LSTUF TYPE STRING,
LIFWK TYPE STRING,
ERRNR TYPE STRING,
MTART TYPE STRING,
MARC_MUST TYPE STRING,
WLK1_MUST TYPE STRING,
WLK2_MUST TYPE STRING,
MBEW_MUST TYPE STRING,
MVKE_MUST TYPE STRING,
SEGMENTS TYPE STRING,
MATKL TYPE STRING,
NAME1 TYPE STRING,
STRLI TYPE STRING,
ATTYP TYPE STRING,
SSTAT TYPE STRING,
M_VKORG TYPE STRING,
M_VTWEG TYPE STRING,
BWKEY TYPE STRING,
BWTTY TYPE STRING,
BWTAR TYPE STRING,
BWTAR2 TYPE STRING,
BWTAR3 TYPE STRING,
BWT_CHECKD TYPE STRING,
MANSEL TYPE STRING,
LISTED TYPE STRING,
KUNNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WINT_LOC_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_LOC_STR-OK sy-vline 
WA_WINT_LOC_STR-ACCEPT sy-vline 
WA_WINT_LOC_STR-WCODE sy-vline 
WA_WINT_LOC_STR-IA_LIST_IN sy-vline 
WA_WINT_LOC_STR-ARTNR sy-vline 
WA_WINT_LOC_STR-ASORT sy-vline 
WA_WINT_LOC_STR-SKOPF sy-vline 
WA_WINT_LOC_STR-VLFKZ sy-vline 
WA_WINT_LOC_STR-PLUMI sy-vline 
WA_WINT_LOC_STR-DATAB sy-vline 
WA_WINT_LOC_STR-DATUB sy-vline 
WA_WINT_LOC_STR-ASS_CODE sy-vline 
WA_WINT_LOC_STR-TIME_CODE sy-vline 
WA_WINT_LOC_STR-LIST_EXC sy-vline 
WA_WINT_LOC_STR-PFLKN sy-vline 
WA_WINT_LOC_STR-SATNR sy-vline 
WA_WINT_LOC_STR-LSTFL sy-vline 
WA_WINT_LOC_STR-SSTUF sy-vline 
WA_WINT_LOC_STR-VKORG sy-vline 
WA_WINT_LOC_STR-VTWEG sy-vline 
WA_WINT_LOC_STR-WERKS sy-vline 
WA_WINT_LOC_STR-LSTUF sy-vline 
WA_WINT_LOC_STR-LIFWK sy-vline 
WA_WINT_LOC_STR-ERRNR sy-vline 
WA_WINT_LOC_STR-MTART sy-vline 
WA_WINT_LOC_STR-MARC_MUST sy-vline 
WA_WINT_LOC_STR-WLK1_MUST sy-vline 
WA_WINT_LOC_STR-WLK2_MUST sy-vline 
WA_WINT_LOC_STR-MBEW_MUST sy-vline 
WA_WINT_LOC_STR-MVKE_MUST sy-vline 
WA_WINT_LOC_STR-SEGMENTS sy-vline 
WA_WINT_LOC_STR-MATKL sy-vline 
WA_WINT_LOC_STR-NAME1 sy-vline 
WA_WINT_LOC_STR-STRLI sy-vline 
WA_WINT_LOC_STR-ATTYP sy-vline 
WA_WINT_LOC_STR-SSTAT sy-vline 
WA_WINT_LOC_STR-M_VKORG sy-vline 
WA_WINT_LOC_STR-M_VTWEG sy-vline 
WA_WINT_LOC_STR-BWKEY sy-vline 
WA_WINT_LOC_STR-BWTTY sy-vline 
WA_WINT_LOC_STR-BWTAR sy-vline 
WA_WINT_LOC_STR-BWTAR2 sy-vline 
WA_WINT_LOC_STR-BWTAR3 sy-vline 
WA_WINT_LOC_STR-BWT_CHECKD sy-vline 
WA_WINT_LOC_STR-MANSEL sy-vline 
WA_WINT_LOC_STR-LISTED sy-vline 
WA_WINT_LOC_STR-KUNNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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