ABAP Select data from SAP table /ISDFPS/151MM_STOCK_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/151MM_STOCK_ITEM 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 /ISDFPS/151MM_STOCK_ITEM. 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 /ISDFPS/151MM_STOCK_ITEM 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_/ISDFPS/151MM_STOCK_ITEM TYPE STANDARD TABLE OF /ISDFPS/151MM_STOCK_ITEM,
      WA_/ISDFPS/151MM_STOCK_ITEM TYPE /ISDFPS/151MM_STOCK_ITEM,
      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: </ISDFPS/151MM_STOCK_ITEM> TYPE /ISDFPS/151MM_STOCK_ITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/ISDFPS/151MM_STOCK_ITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/151MM_STOCK_ITEM
  INTO TABLE IT_/ISDFPS/151MM_STOCK_ITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/151MM_STOCK_ITEM
*  INTO TABLE @DATA(IT_/ISDFPS/151MM_STOCK_ITEM2).
*--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_/ISDFPS/151MM_STOCK_ITEM INDEX 1 INTO DATA(WA_/ISDFPS/151MM_STOCK_ITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/151MM_STOCK_ITEM ASSIGNING </ISDFPS/151MM_STOCK_ITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/151MM_STOCK_ITEM>-PLANT = 1.
</ISDFPS/151MM_STOCK_ITEM>-STORAGE_LOC = 1.
</ISDFPS/151MM_STOCK_ITEM>-MATNR = 1.
</ISDFPS/151MM_STOCK_ITEM>-SERNR = 1.
</ISDFPS/151MM_STOCK_ITEM>-BATCH = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/151MM_STOCK_ITEM INTO WA_/ISDFPS/151MM_STOCK_ITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/151MM_STOCK_ITEM-WBS_ELEM, sy-vline,
  WA_/ISDFPS/151MM_STOCK_ITEM-EBELN, sy-vline,
  WA_/ISDFPS/151MM_STOCK_ITEM-EBELP, sy-vline,
  WA_/ISDFPS/151MM_STOCK_ITEM-VBELN, sy-vline,
  WA_/ISDFPS/151MM_STOCK_ITEM-POSNR, sy-vline,
  WA_/ISDFPS/151MM_STOCK_ITEM-HU_EXID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/151MM_STOCK_ITEM 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_/ISDFPS/151MM_STOCK_ITEM 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_/ISDFPS/151MM_STOCK_ITEM INTO WA_/ISDFPS/151MM_STOCK_ITEM.


*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_/ISDFPS/151MM_STOCK_ITEM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/151MM_STOCK_ITEM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field SERNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/151MM_STOCK_ITEM-SERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/151MM_STOCK_ITEM-SERNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field WBS_ELEM
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/151MM_STOCK_ITEM-WBS_ELEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/151MM_STOCK_ITEM-WBS_ELEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/151MM_STOCK_ITEM-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/151MM_STOCK_ITEM-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/151MM_STOCK_ITEM-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/151MM_STOCK_ITEM-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HU_EXID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/151MM_STOCK_ITEM-HU_EXID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/151MM_STOCK_ITEM-HU_EXID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/151MM_STOCK_ITEM-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/151MM_STOCK_ITEM-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASIS_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/151MM_STOCK_ITEM-BASIS_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/151MM_STOCK_ITEM-BASIS_UOM.
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_/ISDFPS/151MM_STOCK_ITEM_STR, 
PLANT TYPE STRING,
STORAGE_LOC TYPE STRING,
MATNR TYPE STRING,
SERNR TYPE STRING,
BATCH TYPE STRING,
WBS_ELEM TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
HU_EXID TYPE STRING,
LGNUM_TYP_PLA TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
RSNUM_RSPOS TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
MRP_AREA TYPE STRING,
EQUNR TYPE STRING,
UII TYPE STRING,
IDENT TYPE STRING,
BATCH_IS_BLOCKED TYPE STRING,
STATUSKEY TYPE STRING,
VENDRBATCH TYPE STRING,
EXPIRYDATE TYPE STRING,
BATCH_TEXT TYPE STRING,
WBS_ELEM_TEXT TYPE STRING,
QUANT TYPE STRING,
QBLOCK TYPE STRING,
QQUAL TYPE STRING,
QTRANS TYPE STRING,
QLOCK TYPE STRING,
QURES TYPE STRING,
BASIS_UOM TYPE STRING,
PNAME TYPE STRING,
RECTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/151MM_STOCK_ITEM_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_/ISDFPS/151MM_STOCK_ITEM_STR-PLANT sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-STORAGE_LOC sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-MATNR sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-SERNR sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-BATCH sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-WBS_ELEM sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-EBELN sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-EBELP sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-VBELN sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-POSNR sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-HU_EXID sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-LGNUM_TYP_PLA sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-LGNUM sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-LGTYP sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-LGPLA sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-RSNUM_RSPOS sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-RSNUM sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-RSPOS sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-MRP_AREA sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-EQUNR sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-UII sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-IDENT sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-BATCH_IS_BLOCKED sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-STATUSKEY sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-VENDRBATCH sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-EXPIRYDATE sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-BATCH_TEXT sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-WBS_ELEM_TEXT sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-QUANT sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-QBLOCK sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-QQUAL sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-QTRANS sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-QLOCK sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-QURES sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-BASIS_UOM sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-PNAME sy-vline 
WA_/ISDFPS/151MM_STOCK_ITEM_STR-RECTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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