ABAP Select data from SAP table RN1_IS_DYNP_OVERVIEW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1_IS_DYNP_OVERVIEW 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_IS_DYNP_OVERVIEW. 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_IS_DYNP_OVERVIEW 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_IS_DYNP_OVERVIEW TYPE STANDARD TABLE OF RN1_IS_DYNP_OVERVIEW,
      WA_RN1_IS_DYNP_OVERVIEW TYPE RN1_IS_DYNP_OVERVIEW,
      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_IS_DYNP_OVERVIEW> TYPE RN1_IS_DYNP_OVERVIEW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1_IS_DYNP_OVERVIEW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1_IS_DYNP_OVERVIEW
  INTO TABLE IT_RN1_IS_DYNP_OVERVIEW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1_IS_DYNP_OVERVIEW
*  INTO TABLE @DATA(IT_RN1_IS_DYNP_OVERVIEW2).
*--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_IS_DYNP_OVERVIEW INDEX 1 INTO DATA(WA_RN1_IS_DYNP_OVERVIEW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1_IS_DYNP_OVERVIEW ASSIGNING <RN1_IS_DYNP_OVERVIEW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1_IS_DYNP_OVERVIEW>-NODE_KEY = 1.
<RN1_IS_DYNP_OVERVIEW>-UID = 1.
<RN1_IS_DYNP_OVERVIEW>-USER = 1.
<RN1_IS_DYNP_OVERVIEW>-DATE = 1.
<RN1_IS_DYNP_OVERVIEW>-TIME = 1.

ENDLOOP.

LOOP AT IT_RN1_IS_DYNP_OVERVIEW INTO WA_RN1_IS_DYNP_OVERVIEW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1_IS_DYNP_OVERVIEW-TYPE, sy-vline,
  WA_RN1_IS_DYNP_OVERVIEW-SUBTYPE, sy-vline,
  WA_RN1_IS_DYNP_OVERVIEW-EXPNAME, sy-vline,
  WA_RN1_IS_DYNP_OVERVIEW-MANDT, sy-vline,
  WA_RN1_IS_DYNP_OVERVIEW-RELEASE, sy-vline,
  WA_RN1_IS_DYNP_OVERVIEW-PATCHLEVEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1_IS_DYNP_OVERVIEW 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_IS_DYNP_OVERVIEW 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_IS_DYNP_OVERVIEW INTO WA_RN1_IS_DYNP_OVERVIEW.


*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 EXPNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_IS_DYNP_OVERVIEW-EXPNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_IS_DYNP_OVERVIEW-EXPNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_IS_DYNP_OVERVIEW-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_IS_DYNP_OVERVIEW-LANGU.
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_IS_DYNP_OVERVIEW_STR, 
NODE_KEY TYPE STRING,
UID TYPE STRING,
USER TYPE STRING,
DATE TYPE STRING,
TIME TYPE STRING,
TYPE TYPE STRING,
SUBTYPE TYPE STRING,
EXPNAME TYPE STRING,
MANDT TYPE STRING,
RELEASE TYPE STRING,
PATCHLEVEL TYPE STRING,
LANGU TYPE STRING,
INFO TYPE STRING,
WIZARDDEF TYPE STRING,
OBJ_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1_IS_DYNP_OVERVIEW_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_IS_DYNP_OVERVIEW_STR-NODE_KEY sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-UID sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-USER sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-DATE sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-TIME sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-TYPE sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-SUBTYPE sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-EXPNAME sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-MANDT sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-RELEASE sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-PATCHLEVEL sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-LANGU sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-INFO sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-WIZARDDEF sy-vline 
WA_RN1_IS_DYNP_OVERVIEW_STR-OBJ_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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