ABAP Select data from SAP table RN2CLIM_VAL_COMPLETE_WS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2CLIM_VAL_COMPLETE_WS 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 RN2CLIM_VAL_COMPLETE_WS. 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 RN2CLIM_VAL_COMPLETE_WS 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_RN2CLIM_VAL_COMPLETE_WS TYPE STANDARD TABLE OF RN2CLIM_VAL_COMPLETE_WS,
      WA_RN2CLIM_VAL_COMPLETE_WS TYPE RN2CLIM_VAL_COMPLETE_WS,
      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: <RN2CLIM_VAL_COMPLETE_WS> TYPE RN2CLIM_VAL_COMPLETE_WS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2CLIM_VAL_COMPLETE_WS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2CLIM_VAL_COMPLETE_WS
  INTO TABLE IT_RN2CLIM_VAL_COMPLETE_WS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2CLIM_VAL_COMPLETE_WS
*  INTO TABLE @DATA(IT_RN2CLIM_VAL_COMPLETE_WS2).
*--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_RN2CLIM_VAL_COMPLETE_WS INDEX 1 INTO DATA(WA_RN2CLIM_VAL_COMPLETE_WS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2CLIM_VAL_COMPLETE_WS ASSIGNING <RN2CLIM_VAL_COMPLETE_WS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2CLIM_VAL_COMPLETE_WS>-VALID = 1.
<RN2CLIM_VAL_COMPLETE_WS>-VALID_VERS = 1.
<RN2CLIM_VAL_COMPLETE_WS>-OBSID = 1.
<RN2CLIM_VAL_COMPLETE_WS>-OBSID_VERS = 1.
<RN2CLIM_VAL_COMPLETE_WS>-MTYPE = 1.

ENDLOOP.

LOOP AT IT_RN2CLIM_VAL_COMPLETE_WS INTO WA_RN2CLIM_VAL_COMPLETE_WS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2CLIM_VAL_COMPLETE_WS-STATUS, sy-vline,
  WA_RN2CLIM_VAL_COMPLETE_WS-BCHID, sy-vline,
  WA_RN2CLIM_VAL_COMPLETE_WS-BCPID, sy-vline,
  WA_RN2CLIM_VAL_COMPLETE_WS-VALTIMESTAMP, sy-vline,
  WA_RN2CLIM_VAL_COMPLETE_WS-VALTIMESTAMP_TO, sy-vline,
  WA_RN2CLIM_VAL_COMPLETE_WS-DESCR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2CLIM_VAL_COMPLETE_WS 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_RN2CLIM_VAL_COMPLETE_WS 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_RN2CLIM_VAL_COMPLETE_WS INTO WA_RN2CLIM_VAL_COMPLETE_WS.


*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 CUNIT, internal->external for field RANGE_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN2CLIM_VAL_COMPLETE_WS-RANGE_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2CLIM_VAL_COMPLETE_WS-RANGE_UNIT.
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_RN2CLIM_VAL_COMPLETE_WS_STR, 
VALID TYPE STRING,
VALID_VERS TYPE STRING,
OBSID TYPE STRING,
OBSID_VERS TYPE STRING,
MTYPE TYPE STRING,
STATUS TYPE STRING,
BCHID TYPE STRING,
BCPID TYPE STRING,
VALTIMESTAMP TYPE STRING,
VALTIMESTAMP_TO TYPE STRING,
DESCR TYPE STRING,
LGTXT TYPE STRING,
VALUE TYPE STRING,
UNIT TYPE STRING,
VALUE_STRING TYPE STRING,
VALUE_ZERO TYPE STRING,
VALQUAL TYPE STRING,
ABNORM TYPE STRING,
ORIGIN TYPE STRING,
CODE_ORIG TYPE STRING,
CODETEXT_ORIG TYPE STRING,
UNIT_ORIG TYPE STRING,
VALUE_ORIG TYPE STRING,
NORMAL_ORIG TYPE STRING,
ABNORM_ORIG TYPE STRING,
PLDTIMESTAMP TYPE STRING,
PLDID TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
ERUSR TYPE STRING,
UPDAT TYPE STRING,
UPTIM TYPE STRING,
UPUSR TYPE STRING,
STORN TYPE STRING,
STOID TYPE STRING,
STDAT TYPE STRING,
STTIM TYPE STRING,
STUSR TYPE STRING,
REASON_NMEA TYPE STRING,
NORMAL_LOW TYPE STRING,
NORMAL_HIGH TYPE STRING,
BCPEXTID TYPE STRING,
BCPNAME TYPE STRING,
STATUS_EXTID TYPE STRING,
STATUS_TEXT TYPE STRING,
STATUS_ICON TYPE STRING,
PRIVACY TYPE STRING,
TIME_GAP TYPE STRING,
PAIRING TYPE STRING,
GROUPING_TYPE TYPE STRING,
RANGE_NORMAL_LOW TYPE STRING,
RANGE_NORMAL_HIGH TYPE STRING,
RANGE_WARNING_LOW TYPE STRING,
RANGE_WARNING_HIGH TYPE STRING,
RANGE_ALARM_LOW TYPE STRING,
RANGE_ALARM_HIGH TYPE STRING,
RANGE_PERCENTILE_LOW TYPE STRING,
RANGE_PERCENTILE_HIGH TYPE STRING,
RANGE_DISPLAY_LOW TYPE STRING,
RANGE_DISPLAY_HIGH TYPE STRING,
RANGE_UNIT TYPE STRING,
N1NGOTX TYPE STRING,
N1STOTX TYPE STRING,
DATA_TYPE TYPE STRING,
DATA_DECIMALS TYPE STRING,
MSG_TAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2CLIM_VAL_COMPLETE_WS_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_RN2CLIM_VAL_COMPLETE_WS_STR-VALID sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-VALID_VERS sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-OBSID sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-OBSID_VERS sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-MTYPE sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-STATUS sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-BCHID sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-BCPID sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-VALTIMESTAMP sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-VALTIMESTAMP_TO sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-DESCR sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-LGTXT sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-VALUE sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-UNIT sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-VALUE_STRING sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-VALUE_ZERO sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-VALQUAL sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-ABNORM sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-ORIGIN sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-CODE_ORIG sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-CODETEXT_ORIG sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-UNIT_ORIG sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-VALUE_ORIG sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-NORMAL_ORIG sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-ABNORM_ORIG sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-PLDTIMESTAMP sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-PLDID sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-ERDAT sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-ERTIM sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-ERUSR sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-UPDAT sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-UPTIM sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-UPUSR sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-STORN sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-STOID sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-STDAT sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-STTIM sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-STUSR sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-REASON_NMEA sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-NORMAL_LOW sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-NORMAL_HIGH sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-BCPEXTID sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-BCPNAME sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-STATUS_EXTID sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-STATUS_TEXT sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-STATUS_ICON sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-PRIVACY sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-TIME_GAP sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-PAIRING sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-GROUPING_TYPE sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-RANGE_NORMAL_LOW sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-RANGE_NORMAL_HIGH sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-RANGE_WARNING_LOW sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-RANGE_WARNING_HIGH sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-RANGE_ALARM_LOW sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-RANGE_ALARM_HIGH sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-RANGE_PERCENTILE_LOW sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-RANGE_PERCENTILE_HIGH sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-RANGE_DISPLAY_LOW sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-RANGE_DISPLAY_HIGH sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-RANGE_UNIT sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-N1NGOTX sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-N1STOTX sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-DATA_TYPE sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-DATA_DECIMALS sy-vline 
WA_RN2CLIM_VAL_COMPLETE_WS_STR-MSG_TAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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