ABAP Select data from SAP table RESCSMSU2OBJ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RESCSMSU2OBJ 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 RESCSMSU2OBJ. 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 RESCSMSU2OBJ 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_RESCSMSU2OBJ TYPE STANDARD TABLE OF RESCSMSU2OBJ,
      WA_RESCSMSU2OBJ TYPE RESCSMSU2OBJ,
      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: <RESCSMSU2OBJ> TYPE RESCSMSU2OBJ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RESCSMSU2OBJ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RESCSMSU2OBJ
  INTO TABLE IT_RESCSMSU2OBJ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RESCSMSU2OBJ
*  INTO TABLE @DATA(IT_RESCSMSU2OBJ2).
*--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_RESCSMSU2OBJ INDEX 1 INTO DATA(WA_RESCSMSU2OBJ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RESCSMSU2OBJ ASSIGNING <RESCSMSU2OBJ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RESCSMSU2OBJ>-SCS_SU_GUID = 1.
<RESCSMSU2OBJ>-OBJNR = 1.
<RESCSMSU2OBJ>-OBJINFO = 1.
<RESCSMSU2OBJ>-OBJTYPE = 1.
<RESCSMSU2OBJ>-XOBJTYPE = 1.

ENDLOOP.

LOOP AT IT_RESCSMSU2OBJ INTO WA_RESCSMSU2OBJ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RESCSMSU2OBJ-XLOBJTYPE, sy-vline,
  WA_RESCSMSU2OBJ-OBJID, sy-vline,
  WA_RESCSMSU2OBJ-PURPOSE, sy-vline,
  WA_RESCSMSU2OBJ-MEAS, sy-vline,
  WA_RESCSMSU2OBJ-XMMEAS, sy-vline,
  WA_RESCSMSU2OBJ-XSMEAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RESCSMSU2OBJ 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_RESCSMSU2OBJ 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_RESCSMSU2OBJ INTO WA_RESCSMSU2OBJ.


*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 ALPHA, internal->external for field MEAS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RESCSMSU2OBJ-MEAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RESCSMSU2OBJ-MEAS.
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_RESCSMSU2OBJ_STR, 
SCS_SU_GUID TYPE STRING,
OBJNR TYPE STRING,
OBJINFO TYPE STRING,
OBJTYPE TYPE STRING,
XOBJTYPE TYPE STRING,
XLOBJTYPE TYPE STRING,
OBJID TYPE STRING,
PURPOSE TYPE STRING,
MEAS TYPE STRING,
XMMEAS TYPE STRING,
XSMEAS TYPE STRING,
XPURPOSE TYPE STRING,
CURRENCY TYPE STRING,
NET_AMOUNT TYPE STRING,
DEDUCT_TAX TYPE STRING,
NONDEDUCT_TAX TYPE STRING,
GROSSAMOUNT_INFO TYPE STRING,
APPORTVALUE TYPE STRING,
PROCESSID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RESCSMSU2OBJ_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_RESCSMSU2OBJ_STR-SCS_SU_GUID sy-vline 
WA_RESCSMSU2OBJ_STR-OBJNR sy-vline 
WA_RESCSMSU2OBJ_STR-OBJINFO sy-vline 
WA_RESCSMSU2OBJ_STR-OBJTYPE sy-vline 
WA_RESCSMSU2OBJ_STR-XOBJTYPE sy-vline 
WA_RESCSMSU2OBJ_STR-XLOBJTYPE sy-vline 
WA_RESCSMSU2OBJ_STR-OBJID sy-vline 
WA_RESCSMSU2OBJ_STR-PURPOSE sy-vline 
WA_RESCSMSU2OBJ_STR-MEAS sy-vline 
WA_RESCSMSU2OBJ_STR-XMMEAS sy-vline 
WA_RESCSMSU2OBJ_STR-XSMEAS sy-vline 
WA_RESCSMSU2OBJ_STR-XPURPOSE sy-vline 
WA_RESCSMSU2OBJ_STR-CURRENCY sy-vline 
WA_RESCSMSU2OBJ_STR-NET_AMOUNT sy-vline 
WA_RESCSMSU2OBJ_STR-DEDUCT_TAX sy-vline 
WA_RESCSMSU2OBJ_STR-NONDEDUCT_TAX sy-vline 
WA_RESCSMSU2OBJ_STR-GROSSAMOUNT_INFO sy-vline 
WA_RESCSMSU2OBJ_STR-APPORTVALUE sy-vline 
WA_RESCSMSU2OBJ_STR-PROCESSID sy-vline      INTO ld_text SEPARATED BY SPACE.

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