ABAP Select data from SAP table RPTSTYPE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPTSTYPE
*  INTO TABLE @DATA(IT_RPTSTYPE2).
*--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_RPTSTYPE INDEX 1 INTO DATA(WA_RPTSTYPE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPTSTYPE>-HRKNZ = 1.
<RPTSTYPE>-VERSN = 1.
<RPTSTYPE>-UNAME = 1.
<RPTSTYPE>-DATUM = 1.
<RPTSTYPE>-UZEIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPTSTYPE-EMPFG, sy-vline,
  WA_RPTSTYPE-ABSND, sy-vline,
  WA_RPTSTYPE-BNAME, sy-vline,
  WA_RPTSTYPE-TSOBJ, sy-vline,
  WA_RPTSTYPE-OBJKN, sy-vline,
  WA_RPTSTYPE-OBJNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPTSTYPE 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_RPTSTYPE 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_RPTSTYPE INTO WA_RPTSTYPE.


*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_RPTSTYPE_STR, 
HRKNZ TYPE STRING,
VERSN TYPE STRING,
UNAME TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
EMPFG TYPE STRING,
ABSND TYPE STRING,
BNAME TYPE STRING,
TSOBJ TYPE STRING,
OBJKN TYPE STRING,
OBJNR TYPE STRING,
OBJHD TYPE STRING,
OWNNR TYPE STRING,
SWNUM TYPE STRING,
OBJIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPTSTYPE_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_RPTSTYPE_STR-HRKNZ sy-vline 
WA_RPTSTYPE_STR-VERSN sy-vline 
WA_RPTSTYPE_STR-UNAME sy-vline 
WA_RPTSTYPE_STR-DATUM sy-vline 
WA_RPTSTYPE_STR-UZEIT sy-vline 
WA_RPTSTYPE_STR-EMPFG sy-vline 
WA_RPTSTYPE_STR-ABSND sy-vline 
WA_RPTSTYPE_STR-BNAME sy-vline 
WA_RPTSTYPE_STR-TSOBJ sy-vline 
WA_RPTSTYPE_STR-OBJKN sy-vline 
WA_RPTSTYPE_STR-OBJNR sy-vline 
WA_RPTSTYPE_STR-OBJHD sy-vline 
WA_RPTSTYPE_STR-OWNNR sy-vline 
WA_RPTSTYPE_STR-SWNUM sy-vline 
WA_RPTSTYPE_STR-OBJIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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