ABAP Select data from SAP table RN1ME_MD_PRFOA_OBJ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1ME_MD_PRFOA_OBJ 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 RN1ME_MD_PRFOA_OBJ. 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 RN1ME_MD_PRFOA_OBJ 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_RN1ME_MD_PRFOA_OBJ TYPE STANDARD TABLE OF RN1ME_MD_PRFOA_OBJ,
      WA_RN1ME_MD_PRFOA_OBJ TYPE RN1ME_MD_PRFOA_OBJ,
      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: <RN1ME_MD_PRFOA_OBJ> TYPE RN1ME_MD_PRFOA_OBJ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1ME_MD_PRFOA_OBJ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1ME_MD_PRFOA_OBJ
  INTO TABLE IT_RN1ME_MD_PRFOA_OBJ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1ME_MD_PRFOA_OBJ
*  INTO TABLE @DATA(IT_RN1ME_MD_PRFOA_OBJ2).
*--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_RN1ME_MD_PRFOA_OBJ INDEX 1 INTO DATA(WA_RN1ME_MD_PRFOA_OBJ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1ME_MD_PRFOA_OBJ ASSIGNING <RN1ME_MD_PRFOA_OBJ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1ME_MD_PRFOA_OBJ>-R_OBJ = 1.
<RN1ME_MD_PRFOA_OBJ>-S_N1PRFOA = 1.
<RN1ME_MD_PRFOA_OBJ>-MANDT = 1.
<RN1ME_MD_PRFOA_OBJ>-PRICEID = 1.
<RN1ME_MD_PRFOA_OBJ>-DRUGID = 1.

ENDLOOP.

LOOP AT IT_RN1ME_MD_PRFOA_OBJ INTO WA_RN1ME_MD_PRFOA_OBJ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1ME_MD_PRFOA_OBJ-PRICETYPE, sy-vline,
  WA_RN1ME_MD_PRFOA_OBJ-VALSTDAT, sy-vline,
  WA_RN1ME_MD_PRFOA_OBJ-VALENDDAT, sy-vline,
  WA_RN1ME_MD_PRFOA_OBJ-DRPRICE, sy-vline,
  WA_RN1ME_MD_PRFOA_OBJ-DRPRICEU, sy-vline,
  WA_RN1ME_MD_PRFOA_OBJ-DRPRICEPER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1ME_MD_PRFOA_OBJ 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_RN1ME_MD_PRFOA_OBJ 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_RN1ME_MD_PRFOA_OBJ INTO WA_RN1ME_MD_PRFOA_OBJ.


*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 MEQUA, internal->external for field DRPRICEPER
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_MD_PRFOA_OBJ-DRPRICEPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_MD_PRFOA_OBJ-DRPRICEPER.
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_RN1ME_MD_PRFOA_OBJ_STR, 
R_OBJ TYPE STRING,
S_N1PRFOA TYPE STRING,
MANDT TYPE STRING,
PRICEID TYPE STRING,
DRUGID TYPE STRING,
PRICETYPE TYPE STRING,
VALSTDAT TYPE STRING,
VALENDDAT TYPE STRING,
DRPRICE TYPE STRING,
DRPRICEU TYPE STRING,
DRPRICEPER TYPE STRING,
DRPRICEPERU TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
ERUSR TYPE STRING,
UPDAT TYPE STRING,
UPTIM TYPE STRING,
UPUSR TYPE STRING,
LOEKZ TYPE STRING,
LODAT TYPE STRING,
LOTIM TYPE STRING,
LOUSR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1ME_MD_PRFOA_OBJ_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_RN1ME_MD_PRFOA_OBJ_STR-R_OBJ sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-S_N1PRFOA sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-MANDT sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-PRICEID sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-DRUGID sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-PRICETYPE sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-VALSTDAT sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-VALENDDAT sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-DRPRICE sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-DRPRICEU sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-DRPRICEPER sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-DRPRICEPERU sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-ERDAT sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-ERTIM sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-ERUSR sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-UPDAT sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-UPTIM sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-UPUSR sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-LOEKZ sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-LODAT sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-LOTIM sy-vline 
WA_RN1ME_MD_PRFOA_OBJ_STR-LOUSR sy-vline      INTO ld_text SEPARATED BY SPACE.

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