ABAP Select data from SAP table RN1MED_CYDEF 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_CYDEF 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_CYDEF. 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_CYDEF 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_CYDEF TYPE STANDARD TABLE OF RN1MED_CYDEF,
      WA_RN1MED_CYDEF TYPE RN1MED_CYDEF,
      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_CYDEF> TYPE RN1MED_CYDEF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1MED_CYDEF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1MED_CYDEF
  INTO TABLE IT_RN1MED_CYDEF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1MED_CYDEF
*  INTO TABLE @DATA(IT_RN1MED_CYDEF2).
*--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_CYDEF INDEX 1 INTO DATA(WA_RN1MED_CYDEF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1MED_CYDEF ASSIGNING <RN1MED_CYDEF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1MED_CYDEF>-MANDT = 1.
<RN1MED_CYDEF>-CYDEFID = 1.
<RN1MED_CYDEF>-GENCYID = 1.
<RN1MED_CYDEF>-GENCYID_X = 1.
<RN1MED_CYDEF>-BEGDT = 1.

ENDLOOP.

LOOP AT IT_RN1MED_CYDEF INTO WA_RN1MED_CYDEF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1MED_CYDEF-BEGDT_X, sy-vline,
  WA_RN1MED_CYDEF-ENDDT, sy-vline,
  WA_RN1MED_CYDEF-ENDDT_X, sy-vline,
  WA_RN1MED_CYDEF-INTER_T, sy-vline,
  WA_RN1MED_CYDEF-INTER_T_X, sy-vline,
  WA_RN1MED_CYDEF-INTER_H, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1MED_CYDEF 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_CYDEF 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_CYDEF INTO WA_RN1MED_CYDEF.


*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 ME12D, internal->external for field DOSEDEC
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1MED_CYDEF-DOSEDEC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MED_CYDEF-DOSEDEC.
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_CYDEF_STR, 
MANDT TYPE STRING,
CYDEFID TYPE STRING,
GENCYID TYPE STRING,
GENCYID_X TYPE STRING,
BEGDT TYPE STRING,
BEGDT_X TYPE STRING,
ENDDT TYPE STRING,
ENDDT_X TYPE STRING,
INTER_T TYPE STRING,
INTER_T_X TYPE STRING,
INTER_H TYPE STRING,
INTER_H_X TYPE STRING,
BEGZT TYPE STRING,
BEGZT_X TYPE STRING,
ENDZT TYPE STRING,
ENDZT_X TYPE STRING,
MON TYPE STRING,
MON_X TYPE STRING,
DIE TYPE STRING,
DIE_X TYPE STRING,
MIT TYPE STRING,
MIT_X TYPE STRING,
DON TYPE STRING,
DON_X TYPE STRING,
FRE TYPE STRING,
FRE_X TYPE STRING,
SAM TYPE STRING,
SAM_X TYPE STRING,
SON TYPE STRING,
SON_X TYPE STRING,
FEIERTAG TYPE STRING,
FEIERTAG_X TYPE STRING,
MENGE TYPE STRING,
MENGE_X TYPE STRING,
BEM TYPE STRING,
BEM_X TYPE STRING,
PERIOD TYPE STRING,
PERIOD_X TYPE STRING,
ZNR TYPE STRING,
ZNR_X TYPE STRING,
MANU TYPE STRING,
MANU_X TYPE STRING,
N1CWFT TYPE STRING,
N1CWFT_X TYPE STRING,
STORN TYPE STRING,
STORN_X TYPE STRING,
N1EXT TYPE STRING,
N1EXT_X TYPE STRING,
N1TIMSP TYPE STRING,
N1TIMSP_X TYPE STRING,
N1INTER_M TYPE STRING,
N1INTER_M_X TYPE STRING,
DAYCYCLE TYPE STRING,
DAYCYCLE_X TYPE STRING,
DOSEDEC TYPE STRING,
DOSEDEC_X TYPE STRING,
RETRO TYPE STRING,
RETRO_X TYPE STRING,
FORWARD TYPE STRING,
FORWARD_X TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1MED_CYDEF_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_CYDEF_STR-MANDT sy-vline 
WA_RN1MED_CYDEF_STR-CYDEFID sy-vline 
WA_RN1MED_CYDEF_STR-GENCYID sy-vline 
WA_RN1MED_CYDEF_STR-GENCYID_X sy-vline 
WA_RN1MED_CYDEF_STR-BEGDT sy-vline 
WA_RN1MED_CYDEF_STR-BEGDT_X sy-vline 
WA_RN1MED_CYDEF_STR-ENDDT sy-vline 
WA_RN1MED_CYDEF_STR-ENDDT_X sy-vline 
WA_RN1MED_CYDEF_STR-INTER_T sy-vline 
WA_RN1MED_CYDEF_STR-INTER_T_X sy-vline 
WA_RN1MED_CYDEF_STR-INTER_H sy-vline 
WA_RN1MED_CYDEF_STR-INTER_H_X sy-vline 
WA_RN1MED_CYDEF_STR-BEGZT sy-vline 
WA_RN1MED_CYDEF_STR-BEGZT_X sy-vline 
WA_RN1MED_CYDEF_STR-ENDZT sy-vline 
WA_RN1MED_CYDEF_STR-ENDZT_X sy-vline 
WA_RN1MED_CYDEF_STR-MON sy-vline 
WA_RN1MED_CYDEF_STR-MON_X sy-vline 
WA_RN1MED_CYDEF_STR-DIE sy-vline 
WA_RN1MED_CYDEF_STR-DIE_X sy-vline 
WA_RN1MED_CYDEF_STR-MIT sy-vline 
WA_RN1MED_CYDEF_STR-MIT_X sy-vline 
WA_RN1MED_CYDEF_STR-DON sy-vline 
WA_RN1MED_CYDEF_STR-DON_X sy-vline 
WA_RN1MED_CYDEF_STR-FRE sy-vline 
WA_RN1MED_CYDEF_STR-FRE_X sy-vline 
WA_RN1MED_CYDEF_STR-SAM sy-vline 
WA_RN1MED_CYDEF_STR-SAM_X sy-vline 
WA_RN1MED_CYDEF_STR-SON sy-vline 
WA_RN1MED_CYDEF_STR-SON_X sy-vline 
WA_RN1MED_CYDEF_STR-FEIERTAG sy-vline 
WA_RN1MED_CYDEF_STR-FEIERTAG_X sy-vline 
WA_RN1MED_CYDEF_STR-MENGE sy-vline 
WA_RN1MED_CYDEF_STR-MENGE_X sy-vline 
WA_RN1MED_CYDEF_STR-BEM sy-vline 
WA_RN1MED_CYDEF_STR-BEM_X sy-vline 
WA_RN1MED_CYDEF_STR-PERIOD sy-vline 
WA_RN1MED_CYDEF_STR-PERIOD_X sy-vline 
WA_RN1MED_CYDEF_STR-ZNR sy-vline 
WA_RN1MED_CYDEF_STR-ZNR_X sy-vline 
WA_RN1MED_CYDEF_STR-MANU sy-vline 
WA_RN1MED_CYDEF_STR-MANU_X sy-vline 
WA_RN1MED_CYDEF_STR-N1CWFT sy-vline 
WA_RN1MED_CYDEF_STR-N1CWFT_X sy-vline 
WA_RN1MED_CYDEF_STR-STORN sy-vline 
WA_RN1MED_CYDEF_STR-STORN_X sy-vline 
WA_RN1MED_CYDEF_STR-N1EXT sy-vline 
WA_RN1MED_CYDEF_STR-N1EXT_X sy-vline 
WA_RN1MED_CYDEF_STR-N1TIMSP sy-vline 
WA_RN1MED_CYDEF_STR-N1TIMSP_X sy-vline 
WA_RN1MED_CYDEF_STR-N1INTER_M sy-vline 
WA_RN1MED_CYDEF_STR-N1INTER_M_X sy-vline 
WA_RN1MED_CYDEF_STR-DAYCYCLE sy-vline 
WA_RN1MED_CYDEF_STR-DAYCYCLE_X sy-vline 
WA_RN1MED_CYDEF_STR-DOSEDEC sy-vline 
WA_RN1MED_CYDEF_STR-DOSEDEC_X sy-vline 
WA_RN1MED_CYDEF_STR-RETRO sy-vline 
WA_RN1MED_CYDEF_STR-RETRO_X sy-vline 
WA_RN1MED_CYDEF_STR-FORWARD sy-vline 
WA_RN1MED_CYDEF_STR-FORWARD_X sy-vline 
WA_RN1MED_CYDEF_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.