ABAP Select data from SAP table RN1MED_ME_EDRUG into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1MED_ME_EDRUG 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 RN1MED_ME_EDRUG. 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 RN1MED_ME_EDRUG 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_RN1MED_ME_EDRUG TYPE STANDARD TABLE OF RN1MED_ME_EDRUG,
      WA_RN1MED_ME_EDRUG TYPE RN1MED_ME_EDRUG,
      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: <RN1MED_ME_EDRUG> TYPE RN1MED_ME_EDRUG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1MED_ME_EDRUG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1MED_ME_EDRUG
  INTO TABLE IT_RN1MED_ME_EDRUG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1MED_ME_EDRUG
*  INTO TABLE @DATA(IT_RN1MED_ME_EDRUG2).
*--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_RN1MED_ME_EDRUG INDEX 1 INTO DATA(WA_RN1MED_ME_EDRUG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1MED_ME_EDRUG ASSIGNING <RN1MED_ME_EDRUG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1MED_ME_EDRUG>-MANDT = 1.
<RN1MED_ME_EDRUG>-EDRUGID = 1.
<RN1MED_ME_EDRUG>-EINRI = 1.
<RN1MED_ME_EDRUG>-MEEVTID = 1.
<RN1MED_ME_EDRUG>-MEEVTID_X = 1.

ENDLOOP.

LOOP AT IT_RN1MED_ME_EDRUG INTO WA_RN1MED_ME_EDRUG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1MED_ME_EDRUG-MEORDID, sy-vline,
  WA_RN1MED_ME_EDRUG-MEORDID_X, sy-vline,
  WA_RN1MED_ME_EDRUG-DRUGID, sy-vline,
  WA_RN1MED_ME_EDRUG-DRUGID_X, sy-vline,
  WA_RN1MED_ME_EDRUG-DRUGTYP, sy-vline,
  WA_RN1MED_ME_EDRUG-DRUGTYP_X, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1MED_ME_EDRUG 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_RN1MED_ME_EDRUG 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_RN1MED_ME_EDRUG INTO WA_RN1MED_ME_EDRUG.


*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 ALPHA, internal->external for field EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_EDRUG-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_EDRUG-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field PDRUGDQ
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_EDRUG-PDRUGDQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_EDRUG-PDRUGDQ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field RDRUGDQ
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_EDRUG-RDRUGDQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_EDRUG-RDRUGDQ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field SCRAP
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_EDRUG-SCRAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_EDRUG-SCRAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_EDRUG-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_EDRUG-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_EDRUG-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_EDRUG-MJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field STRGTH
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_EDRUG-STRGTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_EDRUG-STRGTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field STRGTHU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_EDRUG-STRGTHU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_EDRUG-STRGTHU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field STRGTHP
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_EDRUG-STRGTHP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_EDRUG-STRGTHP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field STRGTHPU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_EDRUG-STRGTHPU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_EDRUG-STRGTHPU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field OPDRUGDQ
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_EDRUG-OPDRUGDQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_EDRUG-OPDRUGDQ.
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_RN1MED_ME_EDRUG_STR, 
MANDT TYPE STRING,
EDRUGID TYPE STRING,
EINRI TYPE STRING,
MEEVTID TYPE STRING,
MEEVTID_X TYPE STRING,
MEORDID TYPE STRING,
MEORDID_X TYPE STRING,
DRUGID TYPE STRING,
DRUGID_X TYPE STRING,
DRUGTYP TYPE STRING,
DRUGTYP_X TYPE STRING,
PDRUGDQ TYPE STRING,
PDRUGDQ_X TYPE STRING,
RDRUGDQ TYPE STRING,
RDRUGDQ_X TYPE STRING,
SCRAP TYPE STRING,
SCRAP_X TYPE STRING,
DRUGU TYPE STRING,
DRUGU_X TYPE STRING,
PDRUGASTR TYPE STRING,
PDRUGASTR_X TYPE STRING,
RDRUGASTR TYPE STRING,
RDRUGASTR_X TYPE STRING,
DRUGASTRU TYPE STRING,
DRUGASTRU_X TYPE STRING,
CALCREL TYPE STRING,
CALCREL_X TYPE STRING,
FSOURCE TYPE STRING,
FSOURCE_X TYPE STRING,
MATNR TYPE STRING,
MATNR_X TYPE STRING,
WERKS TYPE STRING,
WERKS_X TYPE STRING,
CHARG TYPE STRING,
CHARG_X TYPE STRING,
PICKLIST TYPE STRING,
PICKLIST_X TYPE STRING,
MJAHR TYPE STRING,
MJAHR_X TYPE STRING,
STORN TYPE STRING,
STORN_X TYPE STRING,
STRGTH TYPE STRING,
STRGTH_X TYPE STRING,
STRGTHU TYPE STRING,
STRGTHU_X TYPE STRING,
STRGTHP TYPE STRING,
STRGTHP_X TYPE STRING,
STRGTHPU TYPE STRING,
STRGTHPU_X TYPE STRING,
OPDRUGDQ TYPE STRING,
OPDRUGDQ_X TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1MED_ME_EDRUG_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_RN1MED_ME_EDRUG_STR-MANDT sy-vline 
WA_RN1MED_ME_EDRUG_STR-EDRUGID sy-vline 
WA_RN1MED_ME_EDRUG_STR-EINRI sy-vline 
WA_RN1MED_ME_EDRUG_STR-MEEVTID sy-vline 
WA_RN1MED_ME_EDRUG_STR-MEEVTID_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-MEORDID sy-vline 
WA_RN1MED_ME_EDRUG_STR-MEORDID_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-DRUGID sy-vline 
WA_RN1MED_ME_EDRUG_STR-DRUGID_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-DRUGTYP sy-vline 
WA_RN1MED_ME_EDRUG_STR-DRUGTYP_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-PDRUGDQ sy-vline 
WA_RN1MED_ME_EDRUG_STR-PDRUGDQ_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-RDRUGDQ sy-vline 
WA_RN1MED_ME_EDRUG_STR-RDRUGDQ_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-SCRAP sy-vline 
WA_RN1MED_ME_EDRUG_STR-SCRAP_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-DRUGU sy-vline 
WA_RN1MED_ME_EDRUG_STR-DRUGU_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-PDRUGASTR sy-vline 
WA_RN1MED_ME_EDRUG_STR-PDRUGASTR_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-RDRUGASTR sy-vline 
WA_RN1MED_ME_EDRUG_STR-RDRUGASTR_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-DRUGASTRU sy-vline 
WA_RN1MED_ME_EDRUG_STR-DRUGASTRU_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-CALCREL sy-vline 
WA_RN1MED_ME_EDRUG_STR-CALCREL_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-FSOURCE sy-vline 
WA_RN1MED_ME_EDRUG_STR-FSOURCE_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-MATNR sy-vline 
WA_RN1MED_ME_EDRUG_STR-MATNR_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-WERKS sy-vline 
WA_RN1MED_ME_EDRUG_STR-WERKS_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-CHARG sy-vline 
WA_RN1MED_ME_EDRUG_STR-CHARG_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-PICKLIST sy-vline 
WA_RN1MED_ME_EDRUG_STR-PICKLIST_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-MJAHR sy-vline 
WA_RN1MED_ME_EDRUG_STR-MJAHR_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-STORN sy-vline 
WA_RN1MED_ME_EDRUG_STR-STORN_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-STRGTH sy-vline 
WA_RN1MED_ME_EDRUG_STR-STRGTH_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-STRGTHU sy-vline 
WA_RN1MED_ME_EDRUG_STR-STRGTHU_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-STRGTHP sy-vline 
WA_RN1MED_ME_EDRUG_STR-STRGTHP_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-STRGTHPU sy-vline 
WA_RN1MED_ME_EDRUG_STR-STRGTHPU_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-OPDRUGDQ sy-vline 
WA_RN1MED_ME_EDRUG_STR-OPDRUGDQ_X sy-vline 
WA_RN1MED_ME_EDRUG_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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