ABAP Select data from SAP table WRBA_MAT_SITE_STOCKS_STRUC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRBA_MAT_SITE_STOCKS_STRUC
*  INTO TABLE @DATA(IT_WRBA_MAT_SITE_STOCKS_STRUC2).
*--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_WRBA_MAT_SITE_STOCKS_STRUC INDEX 1 INTO DATA(WA_WRBA_MAT_SITE_STOCKS_STRUC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRBA_MAT_SITE_STOCKS_STRUC>-MATNR = 1.
<WRBA_MAT_SITE_STOCKS_STRUC>-WERKS = 1.
<WRBA_MAT_SITE_STOCKS_STRUC>-LVORM = 1.
<WRBA_MAT_SITE_STOCKS_STRUC>-MMSTA = 1.
<WRBA_MAT_SITE_STOCKS_STRUC>-MMSTD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRBA_MAT_SITE_STOCKS_STRUC-EKGRP, sy-vline,
  WA_WRBA_MAT_SITE_STOCKS_STRUC-DISMM, sy-vline,
  WA_WRBA_MAT_SITE_STOCKS_STRUC-DISPO, sy-vline,
  WA_WRBA_MAT_SITE_STOCKS_STRUC-PLIFZ, sy-vline,
  WA_WRBA_MAT_SITE_STOCKS_STRUC-WEBAZ, sy-vline,
  WA_WRBA_MAT_SITE_STOCKS_STRUC-MINBE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRBA_MAT_SITE_STOCKS_STRUC 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_WRBA_MAT_SITE_STOCKS_STRUC 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_WRBA_MAT_SITE_STOCKS_STRUC INTO WA_WRBA_MAT_SITE_STOCKS_STRUC.


*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_WRBA_MAT_SITE_STOCKS_STRUC-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRBA_MAT_SITE_STOCKS_STRUC-MATNR.
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_WRBA_MAT_SITE_STOCKS_STRUC_STR, 
MATNR TYPE STRING,
WERKS TYPE STRING,
LVORM TYPE STRING,
MMSTA TYPE STRING,
MMSTD TYPE STRING,
EKGRP TYPE STRING,
DISMM TYPE STRING,
DISPO TYPE STRING,
PLIFZ TYPE STRING,
WEBAZ TYPE STRING,
MINBE TYPE STRING,
EISBE TYPE STRING,
MABST TYPE STRING,
LGRAD TYPE STRING,
LGORT TYPE STRING,
REFERENCE_STOCK TYPE STRING,
STOCK TYPE STRING,
STOCK_DIFF TYPE STRING,
STOCK_PERCENTAGE TYPE STRING,
STOCK_DIFF_PERC TYPE STRING,
STATUS_OUT_OF_STOCK TYPE STRING,
STATUS_OVERSTOCK TYPE STRING,
STATUS_STOCK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRBA_MAT_SITE_STOCKS_STRUC_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_WRBA_MAT_SITE_STOCKS_STRUC_STR-MATNR sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-WERKS sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-LVORM sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-MMSTA sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-MMSTD sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-EKGRP sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-DISMM sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-DISPO sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-PLIFZ sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-WEBAZ sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-MINBE sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-EISBE sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-MABST sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-LGRAD sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-LGORT sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-REFERENCE_STOCK sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-STOCK sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-STOCK_DIFF sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-STOCK_PERCENTAGE sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-STOCK_DIFF_PERC sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-STATUS_OUT_OF_STOCK sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-STATUS_OVERSTOCK sy-vline 
WA_WRBA_MAT_SITE_STOCKS_STRUC_STR-STATUS_STOCK sy-vline      INTO ld_text SEPARATED BY SPACE.

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