ABAP Select data from SAP table SCPRVARL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SCPRVARL
*  INTO TABLE @DATA(IT_SCPRVARL2).
*--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_SCPRVARL INDEX 1 INTO DATA(WA_SCPRVARL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SCPRVARL>-BCSET = 1.
<SCPRVARL>-TABLENAME = 1.
<SCPRVARL>-RECNUMBER = 1.
<SCPRVARL>-FIELDNAME = 1.
<SCPRVARL>-DATAELEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SCPRVARL-LANGU, sy-vline,
  WA_SCPRVARL-LANGUTEXT, sy-vline,
  WA_SCPRVARL-FIELDTEXT, sy-vline,
  WA_SCPRVARL-OUTPUTLEN, sy-vline,
  WA_SCPRVARL-INTLEN, sy-vline,
  WA_SCPRVARL-VTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SCPRVARL 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_SCPRVARL 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_SCPRVARL INTO WA_SCPRVARL.


*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_SCPRVARL-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SCPRVARL-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DTYPE, internal->external for field DATATYPE
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_SCPRVARL-DATATYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SCPRVARL-DATATYPE.
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_SCPRVARL_STR, 
BCSET TYPE STRING,
TABLENAME TYPE STRING,
RECNUMBER TYPE STRING,
FIELDNAME TYPE STRING,
DATAELEM TYPE STRING,
LANGU TYPE STRING,
LANGUTEXT TYPE STRING,
FIELDTEXT TYPE STRING,
OUTPUTLEN TYPE STRING,
INTLEN TYPE STRING,
VTYPE TYPE STRING,
DATATYPE TYPE STRING,
DECIMALS TYPE STRING,
CONVEXIT TYPE STRING,
SIGN TYPE STRING,
LOWERCASE TYPE STRING,
VALUE TYPE STRING,
OLDVALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SCPRVARL_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_SCPRVARL_STR-BCSET sy-vline 
WA_SCPRVARL_STR-TABLENAME sy-vline 
WA_SCPRVARL_STR-RECNUMBER sy-vline 
WA_SCPRVARL_STR-FIELDNAME sy-vline 
WA_SCPRVARL_STR-DATAELEM sy-vline 
WA_SCPRVARL_STR-LANGU sy-vline 
WA_SCPRVARL_STR-LANGUTEXT sy-vline 
WA_SCPRVARL_STR-FIELDTEXT sy-vline 
WA_SCPRVARL_STR-OUTPUTLEN sy-vline 
WA_SCPRVARL_STR-INTLEN sy-vline 
WA_SCPRVARL_STR-VTYPE sy-vline 
WA_SCPRVARL_STR-DATATYPE sy-vline 
WA_SCPRVARL_STR-DECIMALS sy-vline 
WA_SCPRVARL_STR-CONVEXIT sy-vline 
WA_SCPRVARL_STR-SIGN sy-vline 
WA_SCPRVARL_STR-LOWERCASE sy-vline 
WA_SCPRVARL_STR-VALUE sy-vline 
WA_SCPRVARL_STR-OLDVALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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