ABAP Select data from SAP table RN1PREC_TAGGING_VIEW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1PREC_TAGGING_VIEW 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 RN1PREC_TAGGING_VIEW. 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 RN1PREC_TAGGING_VIEW 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_RN1PREC_TAGGING_VIEW TYPE STANDARD TABLE OF RN1PREC_TAGGING_VIEW,
      WA_RN1PREC_TAGGING_VIEW TYPE RN1PREC_TAGGING_VIEW,
      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: <RN1PREC_TAGGING_VIEW> TYPE RN1PREC_TAGGING_VIEW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1PREC_TAGGING_VIEW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1PREC_TAGGING_VIEW
  INTO TABLE IT_RN1PREC_TAGGING_VIEW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1PREC_TAGGING_VIEW
*  INTO TABLE @DATA(IT_RN1PREC_TAGGING_VIEW2).
*--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_RN1PREC_TAGGING_VIEW INDEX 1 INTO DATA(WA_RN1PREC_TAGGING_VIEW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1PREC_TAGGING_VIEW ASSIGNING <RN1PREC_TAGGING_VIEW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1PREC_TAGGING_VIEW>-MANDT = 1.
<RN1PREC_TAGGING_VIEW>-SIOBUSAID = 1.
<RN1PREC_TAGGING_VIEW>-SIGNID = 1.
<RN1PREC_TAGGING_VIEW>-OBJTYPE = 1.
<RN1PREC_TAGGING_VIEW>-OBJID = 1.

ENDLOOP.

LOOP AT IT_RN1PREC_TAGGING_VIEW INTO WA_RN1PREC_TAGGING_VIEW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1PREC_TAGGING_VIEW-SIGNUSER, sy-vline,
  WA_RN1PREC_TAGGING_VIEW-ERDAT, sy-vline,
  WA_RN1PREC_TAGGING_VIEW-ERTIM, sy-vline,
  WA_RN1PREC_TAGGING_VIEW-ERUSR, sy-vline,
  WA_RN1PREC_TAGGING_VIEW-UPDAT, sy-vline,
  WA_RN1PREC_TAGGING_VIEW-UPTIM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1PREC_TAGGING_VIEW 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_RN1PREC_TAGGING_VIEW 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_RN1PREC_TAGGING_VIEW INTO WA_RN1PREC_TAGGING_VIEW.


*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_RN1PREC_TAGGING_VIEW-PATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1PREC_TAGGING_VIEW-PATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1PREC_TAGGING_VIEW-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1PREC_TAGGING_VIEW-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FALNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1PREC_TAGGING_VIEW-FALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1PREC_TAGGING_VIEW-FALNR.
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_RN1PREC_TAGGING_VIEW_STR, 
MANDT TYPE STRING,
SIOBUSAID TYPE STRING,
SIGNID TYPE STRING,
OBJTYPE TYPE STRING,
OBJID TYPE STRING,
SIGNUSER TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
ERUSR TYPE STRING,
UPDAT TYPE STRING,
UPTIM TYPE STRING,
UPUSR TYPE STRING,
PATNR TYPE STRING,
SIGN_ID TYPE STRING,
SIGN_NAME TYPE STRING,
SIGN TYPE STRING,
R_TAGENTRY TYPE STRING,
DATE TYPE STRING,
TIME TYPE STRING,
HEADER TYPE STRING,
DETAIL TYPE STRING,
EINRI TYPE STRING,
VARIANTKEY_HEADER TYPE STRING,
MIMETYPE TYPE STRING,
BAR_COLOR_STATUS TYPE STRING,
BAR_VALUE_STATUS TYPE STRING,
BAR_VISIBLE_STATUS TYPE STRING,
FALNR TYPE STRING,
SIGN_DESCR TYPE STRING,
OBJTYPE_DESCR TYPE STRING,
OBJTYPE_NAME TYPE STRING,
SIGN_VISIBILITY TYPE STRING,
TXV_HEADER_VISIBILITY TYPE STRING,
LTA_HEADER_VISIBILITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1PREC_TAGGING_VIEW_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_RN1PREC_TAGGING_VIEW_STR-MANDT sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-SIOBUSAID sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-SIGNID sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-OBJTYPE sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-OBJID sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-SIGNUSER sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-ERDAT sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-ERTIM sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-ERUSR sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-UPDAT sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-UPTIM sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-UPUSR sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-PATNR sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-SIGN_ID sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-SIGN_NAME sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-SIGN sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-R_TAGENTRY sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-DATE sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-TIME sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-HEADER sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-DETAIL sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-EINRI sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-VARIANTKEY_HEADER sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-MIMETYPE sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-BAR_COLOR_STATUS sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-BAR_VALUE_STATUS sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-BAR_VISIBLE_STATUS sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-FALNR sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-SIGN_DESCR sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-OBJTYPE_DESCR sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-OBJTYPE_NAME sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-SIGN_VISIBILITY sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-TXV_HEADER_VISIBILITY sy-vline 
WA_RN1PREC_TAGGING_VIEW_STR-LTA_HEADER_VISIBILITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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