ABAP Select data from SAP table /SRMERP/S_UI_SC_ESS_CART into internal table

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

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SRMERP/S_UI_SC_ESS_CART
  INTO TABLE IT_/SRMERP/S_UI_SC_ESS_CART.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SRMERP/S_UI_SC_ESS_CART
*  INTO TABLE @DATA(IT_/SRMERP/S_UI_SC_ESS_CART2).
*--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_/SRMERP/S_UI_SC_ESS_CART INDEX 1 INTO DATA(WA_/SRMERP/S_UI_SC_ESS_CART2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SRMERP/S_UI_SC_ESS_CART>-KEY = 1.
</SRMERP/S_UI_SC_ESS_CART>-KEY_RT = 1.
</SRMERP/S_UI_SC_ESS_CART>-KEY_RE_RT = 1.
</SRMERP/S_UI_SC_ESS_CART>-OBJECT_ID_RT = 1.
</SRMERP/S_UI_SC_ESS_CART>-TXZ01 = 1.

ENDLOOP.

LOOP AT IT_/SRMERP/S_UI_SC_ESS_CART INTO WA_/SRMERP/S_UI_SC_ESS_CART.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SRMERP/S_UI_SC_ESS_CART-MENGE, sy-vline,
  WA_/SRMERP/S_UI_SC_ESS_CART-MEINS, sy-vline,
  WA_/SRMERP/S_UI_SC_ESS_CART-NETPR, sy-vline,
  WA_/SRMERP/S_UI_SC_ESS_CART-WAERS, sy-vline,
  WA_/SRMERP/S_UI_SC_ESS_CART-TOTAL_VAL_NET_RT, sy-vline,
  WA_/SRMERP/S_UI_SC_ESS_CART-APPROVAL_NOTE_RE_RT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SRMERP/S_UI_SC_ESS_CART 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_/SRMERP/S_UI_SC_ESS_CART 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_/SRMERP/S_UI_SC_ESS_CART INTO WA_/SRMERP/S_UI_SC_ESS_CART.


*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 CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SRMERP/S_UI_SC_ESS_CART-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SRMERP/S_UI_SC_ESS_CART-MEINS.
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_/SRMERP/S_UI_SC_ESS_CART_STR, 
KEY TYPE STRING,
KEY_RT TYPE STRING,
KEY_RE_RT TYPE STRING,
OBJECT_ID_RT TYPE STRING,
TXZ01 TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
NETPR TYPE STRING,
WAERS TYPE STRING,
TOTAL_VAL_NET_RT TYPE STRING,
APPROVAL_NOTE_RE_RT TYPE STRING,
WAERS_RT TYPE STRING,
CHARGE_TO_RE_RT TYPE STRING,
DELIVER_TO_RE_RT TYPE STRING,
DOC_EXISTS TYPE STRING,
DOC_EXISTS_ICON TYPE STRING,
APPROVER_RE_RT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SRMERP/S_UI_SC_ESS_CART_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_/SRMERP/S_UI_SC_ESS_CART_STR-KEY sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-KEY_RT sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-KEY_RE_RT sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-OBJECT_ID_RT sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-TXZ01 sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-MENGE sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-MEINS sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-NETPR sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-WAERS sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-TOTAL_VAL_NET_RT sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-APPROVAL_NOTE_RE_RT sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-WAERS_RT sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-CHARGE_TO_RE_RT sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-DELIVER_TO_RE_RT sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-DOC_EXISTS sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-DOC_EXISTS_ICON sy-vline 
WA_/SRMERP/S_UI_SC_ESS_CART_STR-APPROVER_RE_RT sy-vline      INTO ld_text SEPARATED BY SPACE.

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