ABAP Select data from SAP table RN1MED_ME_TPODRUG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1MED_ME_TPODRUG 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_TPODRUG. 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_TPODRUG 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_TPODRUG TYPE STANDARD TABLE OF RN1MED_ME_TPODRUG,
      WA_RN1MED_ME_TPODRUG TYPE RN1MED_ME_TPODRUG,
      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_TPODRUG> TYPE RN1MED_ME_TPODRUG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1MED_ME_TPODRUG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1MED_ME_TPODRUG
  INTO TABLE IT_RN1MED_ME_TPODRUG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1MED_ME_TPODRUG
*  INTO TABLE @DATA(IT_RN1MED_ME_TPODRUG2).
*--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_TPODRUG INDEX 1 INTO DATA(WA_RN1MED_ME_TPODRUG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1MED_ME_TPODRUG ASSIGNING <RN1MED_ME_TPODRUG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1MED_ME_TPODRUG>-MANDT = 1.
<RN1MED_ME_TPODRUG>-TPDRUGID = 1.
<RN1MED_ME_TPODRUG>-TPID = 1.
<RN1MED_ME_TPODRUG>-EINRI = 1.
<RN1MED_ME_TPODRUG>-DRUGID = 1.

ENDLOOP.

LOOP AT IT_RN1MED_ME_TPODRUG INTO WA_RN1MED_ME_TPODRUG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1MED_ME_TPODRUG-DRUGID_X, sy-vline,
  WA_RN1MED_ME_TPODRUG-DRUGTYP, sy-vline,
  WA_RN1MED_ME_TPODRUG-DRUGTYP_X, sy-vline,
  WA_RN1MED_ME_TPODRUG-PDRUGDQ, sy-vline,
  WA_RN1MED_ME_TPODRUG-PDRUGDQ_X, sy-vline,
  WA_RN1MED_ME_TPODRUG-DRUGU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1MED_ME_TPODRUG 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_TPODRUG 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_TPODRUG INTO WA_RN1MED_ME_TPODRUG.


*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 TPID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-TPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-TPID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-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_TPODRUG-PDRUGDQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-PDRUGDQ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field DRUGASTR
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-DRUGASTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-DRUGASTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CMU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-CMU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-CMU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field DOSE
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-DOSE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-DOSE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field RECAA
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-RECAA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-RECAA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field RECAM
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-RECAM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-RECAM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DCONTU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-DCONTU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-DCONTU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field PDUR
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-PDUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-PDUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PDURU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-PDURU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-PDURU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field RECQUAN
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-RECQUAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-RECQUAN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RECQUANU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-RECQUANU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-RECQUANU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field STRGTH
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_ME_TPODRUG-STRGTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-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_TPODRUG-STRGTHU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-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_TPODRUG-STRGTHP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-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_TPODRUG-STRGTHPU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_ME_TPODRUG-STRGTHPU.
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_TPODRUG_STR, 
MANDT TYPE STRING,
TPDRUGID TYPE STRING,
TPID TYPE STRING,
EINRI TYPE STRING,
DRUGID TYPE STRING,
DRUGID_X TYPE STRING,
DRUGTYP TYPE STRING,
DRUGTYP_X TYPE STRING,
PDRUGDQ TYPE STRING,
PDRUGDQ_X TYPE STRING,
DRUGU TYPE STRING,
DRUGU_X TYPE STRING,
DRUGASTR TYPE STRING,
DRUGASTR_X TYPE STRING,
DRUGASTRU TYPE STRING,
DRUGASTRU_X TYPE STRING,
CALCUD TYPE STRING,
CALCUD_X TYPE STRING,
CMU TYPE STRING,
CMU_X TYPE STRING,
DOSE TYPE STRING,
DOSE_X TYPE STRING,
DOSEU TYPE STRING,
DOSEU_X TYPE STRING,
RECAA TYPE STRING,
RECAA_X TYPE STRING,
RECU TYPE STRING,
RECU_X TYPE STRING,
RECAM TYPE STRING,
RECAM_X TYPE STRING,
CALCREL TYPE STRING,
CALCREL_X TYPE STRING,
DCONTS TYPE STRING,
DCONTS_X TYPE STRING,
DCONTU TYPE STRING,
DCONTU_X TYPE STRING,
PDUR TYPE STRING,
PDUR_X TYPE STRING,
PDURU TYPE STRING,
PDURU_X TYPE STRING,
RECQUAN TYPE STRING,
RECQUAN_X TYPE STRING,
RECQUANU TYPE STRING,
RECQUANU_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,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1MED_ME_TPODRUG_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_TPODRUG_STR-MANDT sy-vline 
WA_RN1MED_ME_TPODRUG_STR-TPDRUGID sy-vline 
WA_RN1MED_ME_TPODRUG_STR-TPID sy-vline 
WA_RN1MED_ME_TPODRUG_STR-EINRI sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DRUGID sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DRUGID_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DRUGTYP sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DRUGTYP_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-PDRUGDQ sy-vline 
WA_RN1MED_ME_TPODRUG_STR-PDRUGDQ_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DRUGU sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DRUGU_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DRUGASTR sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DRUGASTR_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DRUGASTRU sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DRUGASTRU_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-CALCUD sy-vline 
WA_RN1MED_ME_TPODRUG_STR-CALCUD_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-CMU sy-vline 
WA_RN1MED_ME_TPODRUG_STR-CMU_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DOSE sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DOSE_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DOSEU sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DOSEU_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-RECAA sy-vline 
WA_RN1MED_ME_TPODRUG_STR-RECAA_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-RECU sy-vline 
WA_RN1MED_ME_TPODRUG_STR-RECU_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-RECAM sy-vline 
WA_RN1MED_ME_TPODRUG_STR-RECAM_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-CALCREL sy-vline 
WA_RN1MED_ME_TPODRUG_STR-CALCREL_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DCONTS sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DCONTS_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DCONTU sy-vline 
WA_RN1MED_ME_TPODRUG_STR-DCONTU_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-PDUR sy-vline 
WA_RN1MED_ME_TPODRUG_STR-PDUR_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-PDURU sy-vline 
WA_RN1MED_ME_TPODRUG_STR-PDURU_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-RECQUAN sy-vline 
WA_RN1MED_ME_TPODRUG_STR-RECQUAN_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-RECQUANU sy-vline 
WA_RN1MED_ME_TPODRUG_STR-RECQUANU_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-STRGTH sy-vline 
WA_RN1MED_ME_TPODRUG_STR-STRGTH_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-STRGTHU sy-vline 
WA_RN1MED_ME_TPODRUG_STR-STRGTHU_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-STRGTHP sy-vline 
WA_RN1MED_ME_TPODRUG_STR-STRGTHP_X sy-vline 
WA_RN1MED_ME_TPODRUG_STR-STRGTHPU sy-vline 
WA_RN1MED_ME_TPODRUG_STR-STRGTHPU_X sy-vline 
WA_RN1MED_ME_TPODRUG_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.