ABAP Select data from SAP table RN1OSETDRUG into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1OSETDRUG 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 RN1OSETDRUG. 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 RN1OSETDRUG 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_RN1OSETDRUG TYPE STANDARD TABLE OF RN1OSETDRUG,
      WA_RN1OSETDRUG TYPE RN1OSETDRUG,
      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: <RN1OSETDRUG> TYPE RN1OSETDRUG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1OSETDRUG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1OSETDRUG
  INTO TABLE IT_RN1OSETDRUG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1OSETDRUG
*  INTO TABLE @DATA(IT_RN1OSETDRUG2).
*--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_RN1OSETDRUG INDEX 1 INTO DATA(WA_RN1OSETDRUG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1OSETDRUG ASSIGNING <RN1OSETDRUG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1OSETDRUG>-OSETID = 1.
<RN1OSETDRUG>-DRUGID = 1.
<RN1OSETDRUG>-SEQNO = 1.
<RN1OSETDRUG>-PDRUGAQ = 1.
<RN1OSETDRUG>-PDRUGMQ = 1.

ENDLOOP.

LOOP AT IT_RN1OSETDRUG INTO WA_RN1OSETDRUG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1OSETDRUG-DRUGU, sy-vline,
  WA_RN1OSETDRUG-PADDUR, sy-vline,
  WA_RN1OSETDRUG-ADRATE, sy-vline,
  WA_RN1OSETDRUG-ADRATEU, sy-vline,
  WA_RN1OSETDRUG-ADRATEQ, sy-vline,
  WA_RN1OSETDRUG-ZNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1OSETDRUG 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_RN1OSETDRUG 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_RN1OSETDRUG INTO WA_RN1OSETDRUG.


*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 PDRUGAQ
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1OSETDRUG-PDRUGAQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1OSETDRUG-PDRUGAQ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1OSETDRUG-ORGID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1OSETDRUG-ORGID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1OSETDRUG-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1OSETDRUG-GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RN1OSETDRUG-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1OSETDRUG-SPRAS.
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_RN1OSETDRUG_STR, 
OSETID TYPE STRING,
DRUGID TYPE STRING,
SEQNO TYPE STRING,
PDRUGAQ TYPE STRING,
PDRUGMQ TYPE STRING,
DRUGU TYPE STRING,
PADDUR TYPE STRING,
ADRATE TYPE STRING,
ADRATEU TYPE STRING,
ADRATEQ TYPE STRING,
ZNR TYPE STRING,
ORGID TYPE STRING,
DKAT TYPE STRING,
DKEY TYPE STRING,
MEORDID TYPE STRING,
GPART TYPE STRING,
SPRAS TYPE STRING,
DRUGNAME TYPE STRING,
DESCRST TYPE STRING,
DESCRLT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1OSETDRUG_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_RN1OSETDRUG_STR-OSETID sy-vline 
WA_RN1OSETDRUG_STR-DRUGID sy-vline 
WA_RN1OSETDRUG_STR-SEQNO sy-vline 
WA_RN1OSETDRUG_STR-PDRUGAQ sy-vline 
WA_RN1OSETDRUG_STR-PDRUGMQ sy-vline 
WA_RN1OSETDRUG_STR-DRUGU sy-vline 
WA_RN1OSETDRUG_STR-PADDUR sy-vline 
WA_RN1OSETDRUG_STR-ADRATE sy-vline 
WA_RN1OSETDRUG_STR-ADRATEU sy-vline 
WA_RN1OSETDRUG_STR-ADRATEQ sy-vline 
WA_RN1OSETDRUG_STR-ZNR sy-vline 
WA_RN1OSETDRUG_STR-ORGID sy-vline 
WA_RN1OSETDRUG_STR-DKAT sy-vline 
WA_RN1OSETDRUG_STR-DKEY sy-vline 
WA_RN1OSETDRUG_STR-MEORDID sy-vline 
WA_RN1OSETDRUG_STR-GPART sy-vline 
WA_RN1OSETDRUG_STR-SPRAS sy-vline 
WA_RN1OSETDRUG_STR-DRUGNAME sy-vline 
WA_RN1OSETDRUG_STR-DESCRST sy-vline 
WA_RN1OSETDRUG_STR-DESCRLT sy-vline      INTO ld_text SEPARATED BY SPACE.

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