ABAP Select data from SAP table SCPRVALL_COMPS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SCPRVALL_COMPS
*  INTO TABLE @DATA(IT_SCPRVALL_COMPS2).
*--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_SCPRVALL_COMPS INDEX 1 INTO DATA(WA_SCPRVALL_COMPS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SCPRVALL_COMPS>-ID = 1.
<SCPRVALL_COMPS>-VERSION = 1.
<SCPRVALL_COMPS>-TABLENAME = 1.
<SCPRVALL_COMPS>-RECNUMBER = 1.
<SCPRVALL_COMPS>-FIELDNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SCPRVALL_COMPS-LANGU, sy-vline,
  WA_SCPRVALL_COMPS-FLAG, sy-vline,
  WA_SCPRVALL_COMPS-VALUE, sy-vline,
  WA_SCPRVALL_COMPS-DIFFERENCE, sy-vline,
  WA_SCPRVALL_COMPS-COLOR, sy-vline,
  WA_SCPRVALL_COMPS-CHECKED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SCPRVALL_COMPS 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_SCPRVALL_COMPS 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_SCPRVALL_COMPS INTO WA_SCPRVALL_COMPS.


*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 ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SCPRVALL_COMPS-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SCPRVALL_COMPS-LANGU.
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_SCPRVALL_COMPS_STR, 
ID TYPE STRING,
VERSION TYPE STRING,
TABLENAME TYPE STRING,
RECNUMBER TYPE STRING,
FIELDNAME TYPE STRING,
LANGU TYPE STRING,
FLAG TYPE STRING,
VALUE TYPE STRING,
DIFFERENCE TYPE STRING,
COLOR TYPE STRING,
CHECKED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SCPRVALL_COMPS_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_SCPRVALL_COMPS_STR-ID sy-vline 
WA_SCPRVALL_COMPS_STR-VERSION sy-vline 
WA_SCPRVALL_COMPS_STR-TABLENAME sy-vline 
WA_SCPRVALL_COMPS_STR-RECNUMBER sy-vline 
WA_SCPRVALL_COMPS_STR-FIELDNAME sy-vline 
WA_SCPRVALL_COMPS_STR-LANGU sy-vline 
WA_SCPRVALL_COMPS_STR-FLAG sy-vline 
WA_SCPRVALL_COMPS_STR-VALUE sy-vline 
WA_SCPRVALL_COMPS_STR-DIFFERENCE sy-vline 
WA_SCPRVALL_COMPS_STR-COLOR sy-vline 
WA_SCPRVALL_COMPS_STR-CHECKED sy-vline      INTO ld_text SEPARATED BY SPACE.

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