ABAP Select data from SAP table RPARSHOW_OUTTB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPARSHOW_OUTTB
*  INTO TABLE @DATA(IT_RPARSHOW_OUTTB2).
*--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_RPARSHOW_OUTTB INDEX 1 INTO DATA(WA_RPARSHOW_OUTTB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPARSHOW_OUTTB>-OBJNR = 1.
<RPARSHOW_OUTTB>-PSPID = 1.
<RPARSHOW_OUTTB>-POSID = 1.
<RPARSHOW_OUTTB>-PSPHI = 1.
<RPARSHOW_OUTTB>-PARVW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPARSHOW_OUTTB-PARNR, sy-vline,
  WA_RPARSHOW_OUTTB-KTEXT, sy-vline,
  WA_RPARSHOW_OUTTB-ERNAM, sy-vline,
  WA_RPARSHOW_OUTTB-ERDAT, sy-vline,
  WA_RPARSHOW_OUTTB-STATUS, sy-vline,
  WA_RPARSHOW_OUTTB-EEW_PROJ_PS_DUMMY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPARSHOW_OUTTB 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_RPARSHOW_OUTTB 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_RPARSHOW_OUTTB INTO WA_RPARSHOW_OUTTB.


*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 ABPSN, internal->external for field PSPID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_RPARSHOW_OUTTB-PSPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPARSHOW_OUTTB-PSPID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit KONPD, internal->external for field PSPHI
CALL FUNCTION 'CONVERSION_EXIT_KONPD_OUTPUT'
  EXPORTING
    input =                      WA_RPARSHOW_OUTTB-PSPHI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPARSHOW_OUTTB-PSPHI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_RPARSHOW_OUTTB-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPARSHOW_OUTTB-PARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RPARSHOW_OUTTB-PARNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPARSHOW_OUTTB-PARNR.
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_RPARSHOW_OUTTB_STR, 
OBJNR TYPE STRING,
PSPID TYPE STRING,
POSID TYPE STRING,
PSPHI TYPE STRING,
PARVW TYPE STRING,
PARNR TYPE STRING,
KTEXT TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
STATUS TYPE STRING,
EEW_PROJ_PS_DUMMY TYPE STRING,
EEW_PRPS_PS_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPARSHOW_OUTTB_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_RPARSHOW_OUTTB_STR-OBJNR sy-vline 
WA_RPARSHOW_OUTTB_STR-PSPID sy-vline 
WA_RPARSHOW_OUTTB_STR-POSID sy-vline 
WA_RPARSHOW_OUTTB_STR-PSPHI sy-vline 
WA_RPARSHOW_OUTTB_STR-PARVW sy-vline 
WA_RPARSHOW_OUTTB_STR-PARNR sy-vline 
WA_RPARSHOW_OUTTB_STR-KTEXT sy-vline 
WA_RPARSHOW_OUTTB_STR-ERNAM sy-vline 
WA_RPARSHOW_OUTTB_STR-ERDAT sy-vline 
WA_RPARSHOW_OUTTB_STR-STATUS sy-vline 
WA_RPARSHOW_OUTTB_STR-EEW_PROJ_PS_DUMMY sy-vline 
WA_RPARSHOW_OUTTB_STR-EEW_PRPS_PS_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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