ABAP Select data from SAP table WSAM_SHMAE_ITEM_SC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WSAM_SHMAE_ITEM_SC
*  INTO TABLE @DATA(IT_WSAM_SHMAE_ITEM_SC2).
*--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_WSAM_SHMAE_ITEM_SC INDEX 1 INTO DATA(WA_WSAM_SHMAE_ITEM_SC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WSAM_SHMAE_ITEM_SC>-NUM = 1.
<WSAM_SHMAE_ITEM_SC>-CBP_NUM = 1.
<WSAM_SHMAE_ITEM_SC>-MARKED = 1.
<WSAM_SHMAE_ITEM_SC>-SHOW_CBP = 1.
<WSAM_SHMAE_ITEM_SC>-IS_CBP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WSAM_SHMAE_ITEM_SC-COMPLETED, sy-vline,
  WA_WSAM_SHMAE_ITEM_SC-CBP_ITEMS_CONSTRUCTED, sy-vline,
  WA_WSAM_SHMAE_ITEM_SC-QUANTITY, sy-vline,
  WA_WSAM_SHMAE_ITEM_SC-QUANTITY_CHAR, sy-vline,
  WA_WSAM_SHMAE_ITEM_SC-QTY_UNIT, sy-vline,
  WA_WSAM_SHMAE_ITEM_SC-UNRESTRICTED_QUAN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WSAM_SHMAE_ITEM_SC 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_WSAM_SHMAE_ITEM_SC 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_WSAM_SHMAE_ITEM_SC INTO WA_WSAM_SHMAE_ITEM_SC.


*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_WSAM_SHMAE_ITEM_SC_STR, 
NUM TYPE STRING,
CBP_NUM TYPE STRING,
MARKED TYPE STRING,
SHOW_CBP TYPE STRING,
IS_CBP TYPE STRING,
COMPLETED TYPE STRING,
CBP_ITEMS_CONSTRUCTED TYPE STRING,
QUANTITY TYPE STRING,
QUANTITY_CHAR TYPE STRING,
QTY_UNIT TYPE STRING,
UNRESTRICTED_QUAN TYPE STRING,
POS_QUAN TYPE STRING,
MEINS TYPE STRING,
REC_REQD_QTY TYPE STRING,
SALES_UNIT TYPE STRING,
UNRES_MSG_IND TYPE STRING,
UNRES_MESSAGE TYPE STRING,
ATP_MSG_IND TYPE STRING,
ATP_MESSAGE TYPE STRING,
REC_REQD_QTY_ALT TYPE STRING,
UNRES_QUAN_ALT TYPE STRING,
QTY_UNIT_ALT TYPE STRING,
DLV_PLANT_IND TYPE STRING,
OWN_PLANT_IND TYPE STRING,
MAT_KEY TYPE STRING,
MATERIAL TYPE STRING,
EAN_UPC TYPE STRING,
VEND_MAT TYPE STRING,
MATKL TYPE STRING,
BISMT TYPE STRING,
NUMTP TYPE STRING,
SPRAS TYPE STRING,
MAKTX TYPE STRING,
LIFNR TYPE STRING,
SPART TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SALES_PRICE TYPE STRING,
SP_CURRENCY TYPE STRING,
SP_PRICE_QTY TYPE STRING,
SP_UNIT TYPE STRING,
PROM_PRICE TYPE STRING,
PP_CURRENCY TYPE STRING,
PP_PRICE_QTY TYPE STRING,
PP_UNIT TYPE STRING,
PP_VALID_TO TYPE STRING,
IS_PROM_PRICE TYPE STRING,
PLANT TYPE STRING,
PLANT_NAME TYPE STRING,
MAINTAINED TYPE STRING,
PAGE TYPE STRING,
PREV_PAGE_IND TYPE STRING,
NEXT_PAGE_IND TYPE STRING,
CBP_NUM_MAINTAINED TYPE STRING,
WAART TYPE STRING,
FILTER_PASSED TYPE STRING,
LISTED TYPE STRING,
INDEX_MT_PLANT TYPE STRING,
AUTH_SALES_PRICE TYPE STRING,
AUTH_PROM_PRICE TYPE STRING,
AUTH_RUL_PRICE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WSAM_SHMAE_ITEM_SC_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_WSAM_SHMAE_ITEM_SC_STR-NUM sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-CBP_NUM sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-MARKED sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-SHOW_CBP sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-IS_CBP sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-COMPLETED sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-CBP_ITEMS_CONSTRUCTED sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-QUANTITY sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-QUANTITY_CHAR sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-QTY_UNIT sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-UNRESTRICTED_QUAN sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-POS_QUAN sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-MEINS sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-REC_REQD_QTY sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-SALES_UNIT sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-UNRES_MSG_IND sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-UNRES_MESSAGE sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-ATP_MSG_IND sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-ATP_MESSAGE sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-REC_REQD_QTY_ALT sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-UNRES_QUAN_ALT sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-QTY_UNIT_ALT sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-DLV_PLANT_IND sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-OWN_PLANT_IND sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-MAT_KEY sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-MATERIAL sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-EAN_UPC sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-VEND_MAT sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-MATKL sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-BISMT sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-NUMTP sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-SPRAS sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-MAKTX sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-LIFNR sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-SPART sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-VKORG sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-VTWEG sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-SALES_PRICE sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-SP_CURRENCY sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-SP_PRICE_QTY sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-SP_UNIT sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-PROM_PRICE sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-PP_CURRENCY sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-PP_PRICE_QTY sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-PP_UNIT sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-PP_VALID_TO sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-IS_PROM_PRICE sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-PLANT sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-PLANT_NAME sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-MAINTAINED sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-PAGE sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-PREV_PAGE_IND sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-NEXT_PAGE_IND sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-CBP_NUM_MAINTAINED sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-WAART sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-FILTER_PASSED sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-LISTED sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-INDEX_MT_PLANT sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-AUTH_SALES_PRICE sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-AUTH_PROM_PRICE sy-vline 
WA_WSAM_SHMAE_ITEM_SC_STR-AUTH_RUL_PRICE sy-vline      INTO ld_text SEPARATED BY SPACE.

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