ABAP Select data from SAP table RNADR into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RNADR 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 RNADR. 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 RNADR 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_RNADR TYPE STANDARD TABLE OF RNADR,
      WA_RNADR TYPE RNADR,
      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: <RNADR> TYPE RNADR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNADR
*  INTO TABLE @DATA(IT_RNADR2).
*--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_RNADR INDEX 1 INTO DATA(WA_RNADR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNADR>-MANDT = 1.
<RNADR>-ADRNR = 1.
<RNADR>-ADROB = 1.
<RNADR>-PSTLZ = 1.
<RNADR>-LAND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNADR-LANDX, sy-vline,
  WA_RNADR-REGIO, sy-vline,
  WA_RNADR-REGIX, sy-vline,
  WA_RNADR-ORT, sy-vline,
  WA_RNADR-ORT2, sy-vline,
  WA_RNADR-STRAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNADR 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_RNADR 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_RNADR INTO WA_RNADR.


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

*Conversion exit SXIDN, internal->external for field EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_RNADR-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNADR-EMAIL.
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_RNADR_STR, 
MANDT TYPE STRING,
ADRNR TYPE STRING,
ADROB TYPE STRING,
PSTLZ TYPE STRING,
LAND TYPE STRING,
LANDX TYPE STRING,
REGIO TYPE STRING,
REGIX TYPE STRING,
ORT TYPE STRING,
ORT2 TYPE STRING,
STRAS TYPE STRING,
STRAZ TYPE STRING,
EINZG TYPE STRING,
EZTXT TYPE STRING,
PSTLP TYPE STRING,
PFACH TYPE STRING,
LANPF TYPE STRING,
LANPX TYPE STRING,
ORTPF TYPE STRING,
PSTLF TYPE STRING,
TELNR TYPE STRING,
TELXT TYPE STRING,
TELKZ TYPE STRING,
FAXNR TYPE STRING,
FAXXT TYPE STRING,
TEXNR TYPE STRING,
BUILD TYPE STRING,
FLOOR TYPE STRING,
ROOM TYPE STRING,
TDEL1 TYPE STRING,
TDEL2 TYPE STRING,
TDEL3 TYPE STRING,
CADDR TYPE STRING,
EMAIL TYPE STRING,
HSNM1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNADR_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_RNADR_STR-MANDT sy-vline 
WA_RNADR_STR-ADRNR sy-vline 
WA_RNADR_STR-ADROB sy-vline 
WA_RNADR_STR-PSTLZ sy-vline 
WA_RNADR_STR-LAND sy-vline 
WA_RNADR_STR-LANDX sy-vline 
WA_RNADR_STR-REGIO sy-vline 
WA_RNADR_STR-REGIX sy-vline 
WA_RNADR_STR-ORT sy-vline 
WA_RNADR_STR-ORT2 sy-vline 
WA_RNADR_STR-STRAS sy-vline 
WA_RNADR_STR-STRAZ sy-vline 
WA_RNADR_STR-EINZG sy-vline 
WA_RNADR_STR-EZTXT sy-vline 
WA_RNADR_STR-PSTLP sy-vline 
WA_RNADR_STR-PFACH sy-vline 
WA_RNADR_STR-LANPF sy-vline 
WA_RNADR_STR-LANPX sy-vline 
WA_RNADR_STR-ORTPF sy-vline 
WA_RNADR_STR-PSTLF sy-vline 
WA_RNADR_STR-TELNR sy-vline 
WA_RNADR_STR-TELXT sy-vline 
WA_RNADR_STR-TELKZ sy-vline 
WA_RNADR_STR-FAXNR sy-vline 
WA_RNADR_STR-FAXXT sy-vline 
WA_RNADR_STR-TEXNR sy-vline 
WA_RNADR_STR-BUILD sy-vline 
WA_RNADR_STR-FLOOR sy-vline 
WA_RNADR_STR-ROOM sy-vline 
WA_RNADR_STR-TDEL1 sy-vline 
WA_RNADR_STR-TDEL2 sy-vline 
WA_RNADR_STR-TDEL3 sy-vline 
WA_RNADR_STR-CADDR sy-vline 
WA_RNADR_STR-EMAIL sy-vline 
WA_RNADR_STR-HSNM1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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