ABAP Select data from SAP table RN1_RAD_RECON_MPPS_DETAILS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1_RAD_RECON_MPPS_DETAILS 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 RN1_RAD_RECON_MPPS_DETAILS. 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 RN1_RAD_RECON_MPPS_DETAILS 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_RN1_RAD_RECON_MPPS_DETAILS TYPE STANDARD TABLE OF RN1_RAD_RECON_MPPS_DETAILS,
      WA_RN1_RAD_RECON_MPPS_DETAILS TYPE RN1_RAD_RECON_MPPS_DETAILS,
      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: <RN1_RAD_RECON_MPPS_DETAILS> TYPE RN1_RAD_RECON_MPPS_DETAILS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1_RAD_RECON_MPPS_DETAILS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1_RAD_RECON_MPPS_DETAILS
  INTO TABLE IT_RN1_RAD_RECON_MPPS_DETAILS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1_RAD_RECON_MPPS_DETAILS
*  INTO TABLE @DATA(IT_RN1_RAD_RECON_MPPS_DETAILS2).
*--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_RN1_RAD_RECON_MPPS_DETAILS INDEX 1 INTO DATA(WA_RN1_RAD_RECON_MPPS_DETAILS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1_RAD_RECON_MPPS_DETAILS ASSIGNING <RN1_RAD_RECON_MPPS_DETAILS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1_RAD_RECON_MPPS_DETAILS>-PATNR = 1.
<RN1_RAD_RECON_MPPS_DETAILS>-OBJ_MPPS = 1.
<RN1_RAD_RECON_MPPS_DETAILS>-OBJ_STUDY = 1.
<RN1_RAD_RECON_MPPS_DETAILS>-OBJ_SRV = 1.
<RN1_RAD_RECON_MPPS_DETAILS>-MANDT = 1.

ENDLOOP.

LOOP AT IT_RN1_RAD_RECON_MPPS_DETAILS INTO WA_RN1_RAD_RECON_MPPS_DETAILS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1_RAD_RECON_MPPS_DETAILS-MPPSID, sy-vline,
  WA_RN1_RAD_RECON_MPPS_DETAILS-RECNO, sy-vline,
  WA_RN1_RAD_RECON_MPPS_DETAILS-STATUS, sy-vline,
  WA_RN1_RAD_RECON_MPPS_DETAILS-PATID, sy-vline,
  WA_RN1_RAD_RECON_MPPS_DETAILS-PATNAM, sy-vline,
  WA_RN1_RAD_RECON_MPPS_DETAILS-GBDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1_RAD_RECON_MPPS_DETAILS 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_RN1_RAD_RECON_MPPS_DETAILS 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_RN1_RAD_RECON_MPPS_DETAILS INTO WA_RN1_RAD_RECON_MPPS_DETAILS.


*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 PATNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_RAD_RECON_MPPS_DETAILS-PATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_RAD_RECON_MPPS_DETAILS-PATNR.
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_RN1_RAD_RECON_MPPS_DETAILS_STR, 
PATNR TYPE STRING,
OBJ_MPPS TYPE STRING,
OBJ_STUDY TYPE STRING,
OBJ_SRV TYPE STRING,
MANDT TYPE STRING,
MPPSID TYPE STRING,
RECNO TYPE STRING,
STATUS TYPE STRING,
PATID TYPE STRING,
PATNAM TYPE STRING,
GBDAT TYPE STRING,
GESCHL TYPE STRING,
ACCNO TYPE STRING,
REQPROCID TYPE STRING,
STUDYUIDSCHED TYPE STRING,
STUDYUID TYPE STRING,
STUDYDSC TYPE STRING,
STUDYIMGCNT TYPE STRING,
STUDYDAT TYPE STRING,
STUDYTIM TYPE STRING,
STUDYMODALITY TYPE STRING,
ENTRANCEDOSE TYPE STRING,
EXPOSURECOUNT TYPE STRING,
ANATOMICSTRUCTUR TYPE STRING,
IMAGEDOSEPRODUCT TYPE STRING,
FLUROSCOPYTIME TYPE STRING,
STUDYSTATUS TYPE STRING,
PERFSTATAET TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
UPDAT TYPE STRING,
UPTIM TYPE STRING,
RECONKEY TYPE STRING,
RECONPATNR TYPE STRING,
RECONUSER TYPE STRING,
RECONDAT TYPE STRING,
RECONTIM TYPE STRING,
SOURCE TYPE STRING,
IMAGES_AVAILABLE TYPE STRING,
SERIES TYPE STRING,
EXPOSURES TYPE STRING,
SERVICES TYPE STRING,
MATERIALS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1_RAD_RECON_MPPS_DETAILS_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_RN1_RAD_RECON_MPPS_DETAILS_STR-PATNR sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-OBJ_MPPS sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-OBJ_STUDY sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-OBJ_SRV sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-MANDT sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-MPPSID sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-RECNO sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-STATUS sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-PATID sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-PATNAM sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-GBDAT sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-GESCHL sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-ACCNO sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-REQPROCID sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-STUDYUIDSCHED sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-STUDYUID sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-STUDYDSC sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-STUDYIMGCNT sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-STUDYDAT sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-STUDYTIM sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-STUDYMODALITY sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-ENTRANCEDOSE sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-EXPOSURECOUNT sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-ANATOMICSTRUCTUR sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-IMAGEDOSEPRODUCT sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-FLUROSCOPYTIME sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-STUDYSTATUS sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-PERFSTATAET sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-ERDAT sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-ERTIM sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-UPDAT sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-UPTIM sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-RECONKEY sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-RECONPATNR sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-RECONUSER sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-RECONDAT sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-RECONTIM sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-SOURCE sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-IMAGES_AVAILABLE sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-SERIES sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-EXPOSURES sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-SERVICES sy-vline 
WA_RN1_RAD_RECON_MPPS_DETAILS_STR-MATERIALS sy-vline      INTO ld_text SEPARATED BY SPACE.

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