ABAP Select data from SAP table RN1ME_DYN_DOSECALC_IV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1ME_DYN_DOSECALC_IV 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_DYN_DOSECALC_IV. 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_DYN_DOSECALC_IV 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_DYN_DOSECALC_IV TYPE STANDARD TABLE OF RN1ME_DYN_DOSECALC_IV,
      WA_RN1ME_DYN_DOSECALC_IV TYPE RN1ME_DYN_DOSECALC_IV,
      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_DYN_DOSECALC_IV> TYPE RN1ME_DYN_DOSECALC_IV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1ME_DYN_DOSECALC_IV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1ME_DYN_DOSECALC_IV
  INTO TABLE IT_RN1ME_DYN_DOSECALC_IV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1ME_DYN_DOSECALC_IV
*  INTO TABLE @DATA(IT_RN1ME_DYN_DOSECALC_IV2).
*--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_DYN_DOSECALC_IV INDEX 1 INTO DATA(WA_RN1ME_DYN_DOSECALC_IV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1ME_DYN_DOSECALC_IV ASSIGNING <RN1ME_DYN_DOSECALC_IV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1ME_DYN_DOSECALC_IV>-ACT_INGRED = 1.
<RN1ME_DYN_DOSECALC_IV>-STRGTH = 1.
<RN1ME_DYN_DOSECALC_IV>-STRGTHU = 1.
<RN1ME_DYN_DOSECALC_IV>-RECQUAN = 1.
<RN1ME_DYN_DOSECALC_IV>-RECQUANU = 1.

ENDLOOP.

LOOP AT IT_RN1ME_DYN_DOSECALC_IV INTO WA_RN1ME_DYN_DOSECALC_IV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1ME_DYN_DOSECALC_IV-DRUGASTR, sy-vline,
  WA_RN1ME_DYN_DOSECALC_IV-DRUGASTRU, sy-vline,
  WA_RN1ME_DYN_DOSECALC_IV-CALCUD, sy-vline,
  WA_RN1ME_DYN_DOSECALC_IV-CMQUAN, sy-vline,
  WA_RN1ME_DYN_DOSECALC_IV-CMU, sy-vline,
  WA_RN1ME_DYN_DOSECALC_IV-DURSTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1ME_DYN_DOSECALC_IV 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_DYN_DOSECALC_IV 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_DYN_DOSECALC_IV INTO WA_RN1ME_DYN_DOSECALC_IV.


*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 STRGTH
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-STRGTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-STRGTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field RECQUAN
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-RECQUAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-RECQUAN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field DRUGASTR
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-DRUGASTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-DRUGASTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field CMQUAN
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-CMQUAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-CMQUAN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CMU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-CMU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-CMU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field DURSTR
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-DURSTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-DURSTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field CALCDUR
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-CALCDUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-CALCDUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field PATWGT
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-PATWGT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-PATWGT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field PATHGT
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-PATHGT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-PATHGT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field ADRATE
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-ADRATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-ADRATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field ADRATEO
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-ADRATEO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-ADRATEO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field RATEDUR
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-RATEDUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-RATEDUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RATEDURU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_DOSECALC_IV-RATEDURU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_DOSECALC_IV-RATEDURU.
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_DYN_DOSECALC_IV_STR, 
ACT_INGRED TYPE STRING,
STRGTH TYPE STRING,
STRGTHU TYPE STRING,
RECQUAN TYPE STRING,
RECQUANU TYPE STRING,
DRUGASTR TYPE STRING,
DRUGASTRU TYPE STRING,
CALCUD TYPE STRING,
CMQUAN TYPE STRING,
CMU TYPE STRING,
DURSTR TYPE STRING,
DURSTRU TYPE STRING,
CALCDUR TYPE STRING,
CALCDURU TYPE STRING,
PATWGT TYPE STRING,
PATWGTU TYPE STRING,
PATHGT TYPE STRING,
PATHGTU TYPE STRING,
ADRATE TYPE STRING,
ADRATEU TYPE STRING,
ADRATEO TYPE STRING,
ADRATEOU TYPE STRING,
RATEDUR TYPE STRING,
RATEDURU TYPE STRING,
BSA TYPE STRING,
COMP_USED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1ME_DYN_DOSECALC_IV_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_DYN_DOSECALC_IV_STR-ACT_INGRED sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-STRGTH sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-STRGTHU sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-RECQUAN sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-RECQUANU sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-DRUGASTR sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-DRUGASTRU sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-CALCUD sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-CMQUAN sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-CMU sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-DURSTR sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-DURSTRU sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-CALCDUR sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-CALCDURU sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-PATWGT sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-PATWGTU sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-PATHGT sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-PATHGTU sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-ADRATE sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-ADRATEU sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-ADRATEO sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-ADRATEOU sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-RATEDUR sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-RATEDURU sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-BSA sy-vline 
WA_RN1ME_DYN_DOSECALC_IV_STR-COMP_USED sy-vline      INTO ld_text SEPARATED BY SPACE.

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