ABAP Select data from SAP table WINT_MVKE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WINT_MVKE 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_MVKE. 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_MVKE 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_MVKE TYPE STANDARD TABLE OF WINT_MVKE,
      WA_WINT_MVKE TYPE WINT_MVKE,
      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_MVKE> TYPE WINT_MVKE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WINT_MVKE
*  INTO TABLE @DATA(IT_WINT_MVKE2).
*--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_MVKE INDEX 1 INTO DATA(WA_WINT_MVKE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WINT_MVKE>-MANDT = 1.
<WINT_MVKE>-MATNR = 1.
<WINT_MVKE>-VKORG = 1.
<WINT_MVKE>-VTWEG = 1.
<WINT_MVKE>-LVORM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WINT_MVKE-VMSTA, sy-vline,
  WA_WINT_MVKE-VMSTD, sy-vline,
  WA_WINT_MVKE-VRKME, sy-vline,
  WA_WINT_MVKE-DWERK, sy-vline,
  WA_WINT_MVKE-PMATN, sy-vline,
  WA_WINT_MVKE-SSTUF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WINT_MVKE 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_MVKE 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_MVKE INTO WA_WINT_MVKE.


*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 MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WINT_MVKE-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WINT_MVKE-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field PMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WINT_MVKE-PMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WINT_MVKE-PMATN.
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_MVKE_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
LVORM TYPE STRING,
VMSTA TYPE STRING,
VMSTD TYPE STRING,
VRKME TYPE STRING,
DWERK TYPE STRING,
PMATN TYPE STRING,
SSTUF TYPE STRING,
PFLKS TYPE STRING,
LSTFL TYPE STRING,
LSTVZ TYPE STRING,
LSTAK TYPE STRING,
LDVFL TYPE STRING,
LDBFL TYPE STRING,
LDVZL TYPE STRING,
LDBZL TYPE STRING,
VDVFL TYPE STRING,
VDBFL TYPE STRING,
VDVZL TYPE STRING,
VDBZL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WINT_MVKE_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_MVKE_STR-MANDT sy-vline 
WA_WINT_MVKE_STR-MATNR sy-vline 
WA_WINT_MVKE_STR-VKORG sy-vline 
WA_WINT_MVKE_STR-VTWEG sy-vline 
WA_WINT_MVKE_STR-LVORM sy-vline 
WA_WINT_MVKE_STR-VMSTA sy-vline 
WA_WINT_MVKE_STR-VMSTD sy-vline 
WA_WINT_MVKE_STR-VRKME sy-vline 
WA_WINT_MVKE_STR-DWERK sy-vline 
WA_WINT_MVKE_STR-PMATN sy-vline 
WA_WINT_MVKE_STR-SSTUF sy-vline 
WA_WINT_MVKE_STR-PFLKS sy-vline 
WA_WINT_MVKE_STR-LSTFL sy-vline 
WA_WINT_MVKE_STR-LSTVZ sy-vline 
WA_WINT_MVKE_STR-LSTAK sy-vline 
WA_WINT_MVKE_STR-LDVFL sy-vline 
WA_WINT_MVKE_STR-LDBFL sy-vline 
WA_WINT_MVKE_STR-LDVZL sy-vline 
WA_WINT_MVKE_STR-LDBZL sy-vline 
WA_WINT_MVKE_STR-VDVFL sy-vline 
WA_WINT_MVKE_STR-VDBFL sy-vline 
WA_WINT_MVKE_STR-VDVZL sy-vline 
WA_WINT_MVKE_STR-VDBZL sy-vline      INTO ld_text SEPARATED BY SPACE.

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