ABAP Select data from SAP table WSTI_WD_DETAIL_SC_VIS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WSTI_WD_DETAIL_SC_VIS
*  INTO TABLE @DATA(IT_WSTI_WD_DETAIL_SC_VIS2).
*--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_WSTI_WD_DETAIL_SC_VIS INDEX 1 INTO DATA(WA_WSTI_WD_DETAIL_SC_VIS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WSTI_WD_DETAIL_SC_VIS>-QUANTITY = 1.
<WSTI_WD_DETAIL_SC_VIS>-SALES_VALUE = 1.
<WSTI_WD_DETAIL_SC_VIS>-PHYSINV24H = 1.
<WSTI_WD_DETAIL_SC_VIS>-QUAN_VAL = 1.
<WSTI_WD_DETAIL_SC_VIS>-LOC_STOCK_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WSTI_WD_DETAIL_SC_VIS-WERKS, sy-vline,
  WA_WSTI_WD_DETAIL_SC_VIS-LGORT, sy-vline,
  WA_WSTI_WD_DETAIL_SC_VIS-AEDAT, sy-vline,
  WA_WSTI_WD_DETAIL_SC_VIS-ZLDAT, sy-vline,
  WA_WSTI_WD_DETAIL_SC_VIS-BUDAT, sy-vline,
  WA_WSTI_WD_DETAIL_SC_VIS-MBLNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WSTI_WD_DETAIL_SC_VIS 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_WSTI_WD_DETAIL_SC_VIS 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_WSTI_WD_DETAIL_SC_VIS INTO WA_WSTI_WD_DETAIL_SC_VIS.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_WSTI_WD_DETAIL_SC_VIS_STR, 
QUANTITY TYPE STRING,
SALES_VALUE TYPE STRING,
PHYSINV24H TYPE STRING,
QUAN_VAL TYPE STRING,
LOC_STOCK_TYPE TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
AEDAT TYPE STRING,
ZLDAT TYPE STRING,
BUDAT TYPE STRING,
MBLNR TYPE STRING,
WSTI_COUNTDATE TYPE STRING,
WSTI_FREEZEDATE TYPE STRING,
WSTI_ENTERDATE TYPE STRING,
LTA_MBLNR TYPE STRING,
BTEXT TYPE STRING,
CHARG TYPE STRING,
SOTXT TYPE STRING,
LIFNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KUNNR TYPE STRING,
ERFMG TYPE STRING,
ERFME TYPE STRING,
BUCHM_ERFME TYPE STRING,
DIFMG_ERFME TYPE STRING,
EXVKW_POSWS TYPE STRING,
POSWS TYPE STRING,
BUCHW_POSWS TYPE STRING,
DIFWT_POSWS TYPE STRING,
DMBTR_POSWS TYPE STRING,
POSWS_1 TYPE STRING,
DIFF_PROC TYPE STRING,
GRUND TYPE STRING,
BTN_OK TYPE STRING,
BTN_CANCEL TYPE STRING,
BTN_CLOSE TYPE STRING,
QUAN_READ_ONLY TYPE STRING,
VALUE_READ_ONLY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WSTI_WD_DETAIL_SC_VIS_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_WSTI_WD_DETAIL_SC_VIS_STR-QUANTITY sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-SALES_VALUE sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-PHYSINV24H sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-QUAN_VAL sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-LOC_STOCK_TYPE sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-WERKS sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-LGORT sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-AEDAT sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-ZLDAT sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-BUDAT sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-MBLNR sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-WSTI_COUNTDATE sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-WSTI_FREEZEDATE sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-WSTI_ENTERDATE sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-LTA_MBLNR sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-BTEXT sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-CHARG sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-SOTXT sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-LIFNR sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-KDAUF sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-KDPOS sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-KUNNR sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-ERFMG sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-ERFME sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-BUCHM_ERFME sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-DIFMG_ERFME sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-EXVKW_POSWS sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-POSWS sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-BUCHW_POSWS sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-DIFWT_POSWS sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-DMBTR_POSWS sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-POSWS_1 sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-DIFF_PROC sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-GRUND sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-BTN_OK sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-BTN_CANCEL sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-BTN_CLOSE sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-QUAN_READ_ONLY sy-vline 
WA_WSTI_WD_DETAIL_SC_VIS_STR-VALUE_READ_ONLY sy-vline      INTO ld_text SEPARATED BY SPACE.

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