ABAP Select data from SAP table WDSD_UI_WA_STY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WDSD_UI_WA_STY
*  INTO TABLE @DATA(IT_WDSD_UI_WA_STY2).
*--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_WDSD_UI_WA_STY INDEX 1 INTO DATA(WA_WDSD_UI_WA_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WDSD_UI_WA_STY>-LIFNR = 1.
<WDSD_UI_WA_STY>-LIFNR_T = 1.
<WDSD_UI_WA_STY>-WERKS = 1.
<WDSD_UI_WA_STY>-WERKS_T = 1.
<WDSD_UI_WA_STY>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WDSD_UI_WA_STY-MATNR_T, sy-vline,
  WA_WDSD_UI_WA_STY-FLIFN, sy-vline,
  WA_WDSD_UI_WA_STY-VKORG, sy-vline,
  WA_WDSD_UI_WA_STY-VTWEG, sy-vline,
  WA_WDSD_UI_WA_STY-PLTYP, sy-vline,
  WA_WDSD_UI_WA_STY-DATAB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WDSD_UI_WA_STY 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_WDSD_UI_WA_STY 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_WDSD_UI_WA_STY INTO WA_WDSD_UI_WA_STY.


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

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

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

*Conversion exit KOTAB, internal->external for field PC_ST_KOTABNR
CALL FUNCTION 'CONVERSION_EXIT_KOTAB_OUTPUT'
  EXPORTING
    input =                      WA_WDSD_UI_WA_STY-PC_ST_KOTABNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WDSD_UI_WA_STY-PC_ST_KOTABNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit KOTAB, internal->external for field SC_ST_KOTABNR
CALL FUNCTION 'CONVERSION_EXIT_KOTAB_OUTPUT'
  EXPORTING
    input =                      WA_WDSD_UI_WA_STY-SC_ST_KOTABNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WDSD_UI_WA_STY-SC_ST_KOTABNR.
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_WDSD_UI_WA_STY_STR, 
LIFNR TYPE STRING,
LIFNR_T TYPE STRING,
WERKS TYPE STRING,
WERKS_T TYPE STRING,
MATNR TYPE STRING,
MATNR_T TYPE STRING,
FLIFN TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
PLTYP TYPE STRING,
DATAB TYPE STRING,
ATTYP TYPE STRING,
PC_V_KBETR TYPE STRING,
PC_V_KONWA TYPE STRING,
PC_V_DATBI TYPE STRING,
PC_ST_KBETR TYPE STRING,
PC_ST_KONWA TYPE STRING,
PC_ST_DATAB TYPE STRING,
PC_ST_DATBI TYPE STRING,
PC_KPEIN TYPE STRING,
PC_KMEIN TYPE STRING,
PC_KSCHL TYPE STRING,
PC_ST_KOTABNR TYPE STRING,
PC_ST_CHANGED TYPE STRING,
SC_D_C_KBETR TYPE STRING,
SC_D_C_KONWA TYPE STRING,
SC_D_C_DATBI TYPE STRING,
SC_PL_KBETR TYPE STRING,
SC_PL_KONWA TYPE STRING,
SC_PL_DATBI TYPE STRING,
SC_ST_KBETR TYPE STRING,
SC_ST_KONWA TYPE STRING,
SC_ST_DATAB TYPE STRING,
SC_ST_DATBI TYPE STRING,
SC_VRKME TYPE STRING,
SC_KPEIN TYPE STRING,
SC_KMEIN TYPE STRING,
SC_KSCHL TYPE STRING,
SC_ST_KOTABNR TYPE STRING,
SC_ST_CHANGED TYPE STRING,
PRC_D_C_KBETR TYPE STRING,
PRC_D_C_KONWA TYPE STRING,
PRC_D_C_DATBI TYPE STRING,
PRC_PL_KBETR TYPE STRING,
PRC_PL_KONWA TYPE STRING,
PRC_PL_DATBI TYPE STRING,
PRC_ST_KBETR TYPE STRING,
PRC_ST_KONWA TYPE STRING,
PRC_ST_DATBI TYPE STRING,
PRC_KSCHL TYPE STRING,
SORTING TYPE STRING,
ICON TYPE STRING,
COLOR TYPE STRING,
COLTAB TYPE STRING,
CELLTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WDSD_UI_WA_STY_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_WDSD_UI_WA_STY_STR-LIFNR sy-vline 
WA_WDSD_UI_WA_STY_STR-LIFNR_T sy-vline 
WA_WDSD_UI_WA_STY_STR-WERKS sy-vline 
WA_WDSD_UI_WA_STY_STR-WERKS_T sy-vline 
WA_WDSD_UI_WA_STY_STR-MATNR sy-vline 
WA_WDSD_UI_WA_STY_STR-MATNR_T sy-vline 
WA_WDSD_UI_WA_STY_STR-FLIFN sy-vline 
WA_WDSD_UI_WA_STY_STR-VKORG sy-vline 
WA_WDSD_UI_WA_STY_STR-VTWEG sy-vline 
WA_WDSD_UI_WA_STY_STR-PLTYP sy-vline 
WA_WDSD_UI_WA_STY_STR-DATAB sy-vline 
WA_WDSD_UI_WA_STY_STR-ATTYP sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_V_KBETR sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_V_KONWA sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_V_DATBI sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_ST_KBETR sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_ST_KONWA sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_ST_DATAB sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_ST_DATBI sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_KPEIN sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_KMEIN sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_KSCHL sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_ST_KOTABNR sy-vline 
WA_WDSD_UI_WA_STY_STR-PC_ST_CHANGED sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_D_C_KBETR sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_D_C_KONWA sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_D_C_DATBI sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_PL_KBETR sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_PL_KONWA sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_PL_DATBI sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_ST_KBETR sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_ST_KONWA sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_ST_DATAB sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_ST_DATBI sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_VRKME sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_KPEIN sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_KMEIN sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_KSCHL sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_ST_KOTABNR sy-vline 
WA_WDSD_UI_WA_STY_STR-SC_ST_CHANGED sy-vline 
WA_WDSD_UI_WA_STY_STR-PRC_D_C_KBETR sy-vline 
WA_WDSD_UI_WA_STY_STR-PRC_D_C_KONWA sy-vline 
WA_WDSD_UI_WA_STY_STR-PRC_D_C_DATBI sy-vline 
WA_WDSD_UI_WA_STY_STR-PRC_PL_KBETR sy-vline 
WA_WDSD_UI_WA_STY_STR-PRC_PL_KONWA sy-vline 
WA_WDSD_UI_WA_STY_STR-PRC_PL_DATBI sy-vline 
WA_WDSD_UI_WA_STY_STR-PRC_ST_KBETR sy-vline 
WA_WDSD_UI_WA_STY_STR-PRC_ST_KONWA sy-vline 
WA_WDSD_UI_WA_STY_STR-PRC_ST_DATBI sy-vline 
WA_WDSD_UI_WA_STY_STR-PRC_KSCHL sy-vline 
WA_WDSD_UI_WA_STY_STR-SORTING sy-vline 
WA_WDSD_UI_WA_STY_STR-ICON sy-vline 
WA_WDSD_UI_WA_STY_STR-COLOR sy-vline 
WA_WDSD_UI_WA_STY_STR-COLTAB sy-vline 
WA_WDSD_UI_WA_STY_STR-CELLTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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