ABAP Select data from SAP table ARPRPARAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ARPRPARAM
*  INTO TABLE @DATA(IT_ARPRPARAM2).
*--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_ARPRPARAM INDEX 1 INTO DATA(WA_ARPRPARAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ARPRPARAM>-MANDT = 1.
<ARPRPARAM>-RECIPEPROCESSPARAMUUID = 1.
<ARPRPARAM>-RECIPEPROCESSPARAM = 1.
<ARPRPARAM>-RECIPEPROCESSPARAMUNIT = 1.
<ARPRPARAM>-RECIPEPROCESSPARAMUNITISFXD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ARPRPARAM-RECIPEPROCESSPARAMTGTVAL, sy-vline,
  WA_ARPRPARAM-RECIPEPROCESSPARAMTGTVALISFXD, sy-vline,
  WA_ARPRPARAM-RECIPEPROCESSPARAMMINVAL, sy-vline,
  WA_ARPRPARAM-RECIPEPROCESSPARAMMINVALISFXD, sy-vline,
  WA_ARPRPARAM-RECIPEPROCESSPARAMMAXVAL, sy-vline,
  WA_ARPRPARAM-RECIPEPROCESSPARAMMAXVALISFXD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ARPRPARAM 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_ARPRPARAM 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_ARPRPARAM INTO WA_ARPRPARAM.


*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 CUNIT, internal->external for field RECIPEPROCESSPARAMUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ARPRPARAM-RECIPEPROCESSPARAMUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARPRPARAM-RECIPEPROCESSPARAMUNIT.
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_ARPRPARAM_STR, 
MANDT TYPE STRING,
RECIPEPROCESSPARAMUUID TYPE STRING,
RECIPEPROCESSPARAM TYPE STRING,
RECIPEPROCESSPARAMUNIT TYPE STRING,
RECIPEPROCESSPARAMUNITISFXD TYPE STRING,
RECIPEPROCESSPARAMTGTVAL TYPE STRING,
RECIPEPROCESSPARAMTGTVALISFXD TYPE STRING,
RECIPEPROCESSPARAMMINVAL TYPE STRING,
RECIPEPROCESSPARAMMINVALISFXD TYPE STRING,
RECIPEPROCESSPARAMMAXVAL TYPE STRING,
RECIPEPROCESSPARAMMAXVALISFXD TYPE STRING,
RECIPEPROCESSPARAMDECPLACES TYPE STRING,
RECIPEPROCESSPARAMGROUP TYPE STRING,
RECIPEPROCESSPARAMCLASS TYPE STRING,
RECIPEPROCESSPARAMISOBSOLETE TYPE STRING,
RECIPEPROCESSPARAMISDELETED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ARPRPARAM_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_ARPRPARAM_STR-MANDT sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMUUID sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAM sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMUNIT sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMUNITISFXD sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMTGTVAL sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMTGTVALISFXD sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMMINVAL sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMMINVALISFXD sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMMAXVAL sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMMAXVALISFXD sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMDECPLACES sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMGROUP sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMCLASS sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMISOBSOLETE sy-vline 
WA_ARPRPARAM_STR-RECIPEPROCESSPARAMISDELETED sy-vline      INTO ld_text SEPARATED BY SPACE.

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