ABAP Select data from SAP table RNPAP_ATTRIB_X into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNPAP_ATTRIB_X
*  INTO TABLE @DATA(IT_RNPAP_ATTRIB_X2).
*--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_RNPAP_ATTRIB_X INDEX 1 INTO DATA(WA_RNPAP_ATTRIB_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNPAP_ATTRIB_X>-NNAMEX = 1.
<RNPAP_ATTRIB_X>-VNAMEX = 1.
<RNPAP_ATTRIB_X>-GBNAMX = 1.
<RNPAP_ATTRIB_X>-GBDATX = 1.
<RNPAP_ATTRIB_X>-UNKNOWN_GBDATX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNPAP_ATTRIB_X-GSCHLEX, sy-vline,
  WA_RNPAP_ATTRIB_X-TITELX, sy-vline,
  WA_RNPAP_ATTRIB_X-NAMZUX, sy-vline,
  WA_RNPAP_ATTRIB_X-VORSWX, sy-vline,
  WA_RNPAP_ATTRIB_X-ANRDEX, sy-vline,
  WA_RNPAP_ATTRIB_X-EXTNRX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNPAP_ATTRIB_X 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_RNPAP_ATTRIB_X 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_RNPAP_ATTRIB_X INTO WA_RNPAP_ATTRIB_X.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RNPAP_ATTRIB_X_STR, 
NNAMEX TYPE STRING,
VNAMEX TYPE STRING,
GBNAMX TYPE STRING,
GBDATX TYPE STRING,
UNKNOWN_GBDATX TYPE STRING,
GSCHLEX TYPE STRING,
TITELX TYPE STRING,
NAMZUX TYPE STRING,
VORSWX TYPE STRING,
ANRDEX TYPE STRING,
EXTNRX TYPE STRING,
RVNUMX TYPE STRING,
PASSTYX TYPE STRING,
PASSNRX TYPE STRING,
PSTLZX TYPE STRING,
LANDX TYPE STRING,
REGIOX TYPE STRING,
ORTX TYPE STRING,
ORT2X TYPE STRING,
STRASX TYPE STRING,
STRAZX TYPE STRING,
EINZGX TYPE STRING,
PSTLPX TYPE STRING,
PFACHX TYPE STRING,
LANPFX TYPE STRING,
ORTPFX TYPE STRING,
PSTLFX TYPE STRING,
TELNOX TYPE STRING,
FAXNRX TYPE STRING,
FAXXTX TYPE STRING,
TEXNRX TYPE STRING,
BUILDX TYPE STRING,
FLOORX TYPE STRING,
ROOMX TYPE STRING,
EMAILX TYPE STRING,
HSNM1X TYPE STRING,
/ISHFR/BIRTHRKX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNPAP_ATTRIB_X_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_RNPAP_ATTRIB_X_STR-NNAMEX sy-vline 
WA_RNPAP_ATTRIB_X_STR-VNAMEX sy-vline 
WA_RNPAP_ATTRIB_X_STR-GBNAMX sy-vline 
WA_RNPAP_ATTRIB_X_STR-GBDATX sy-vline 
WA_RNPAP_ATTRIB_X_STR-UNKNOWN_GBDATX sy-vline 
WA_RNPAP_ATTRIB_X_STR-GSCHLEX sy-vline 
WA_RNPAP_ATTRIB_X_STR-TITELX sy-vline 
WA_RNPAP_ATTRIB_X_STR-NAMZUX sy-vline 
WA_RNPAP_ATTRIB_X_STR-VORSWX sy-vline 
WA_RNPAP_ATTRIB_X_STR-ANRDEX sy-vline 
WA_RNPAP_ATTRIB_X_STR-EXTNRX sy-vline 
WA_RNPAP_ATTRIB_X_STR-RVNUMX sy-vline 
WA_RNPAP_ATTRIB_X_STR-PASSTYX sy-vline 
WA_RNPAP_ATTRIB_X_STR-PASSNRX sy-vline 
WA_RNPAP_ATTRIB_X_STR-PSTLZX sy-vline 
WA_RNPAP_ATTRIB_X_STR-LANDX sy-vline 
WA_RNPAP_ATTRIB_X_STR-REGIOX sy-vline 
WA_RNPAP_ATTRIB_X_STR-ORTX sy-vline 
WA_RNPAP_ATTRIB_X_STR-ORT2X sy-vline 
WA_RNPAP_ATTRIB_X_STR-STRASX sy-vline 
WA_RNPAP_ATTRIB_X_STR-STRAZX sy-vline 
WA_RNPAP_ATTRIB_X_STR-EINZGX sy-vline 
WA_RNPAP_ATTRIB_X_STR-PSTLPX sy-vline 
WA_RNPAP_ATTRIB_X_STR-PFACHX sy-vline 
WA_RNPAP_ATTRIB_X_STR-LANPFX sy-vline 
WA_RNPAP_ATTRIB_X_STR-ORTPFX sy-vline 
WA_RNPAP_ATTRIB_X_STR-PSTLFX sy-vline 
WA_RNPAP_ATTRIB_X_STR-TELNOX sy-vline 
WA_RNPAP_ATTRIB_X_STR-FAXNRX sy-vline 
WA_RNPAP_ATTRIB_X_STR-FAXXTX sy-vline 
WA_RNPAP_ATTRIB_X_STR-TEXNRX sy-vline 
WA_RNPAP_ATTRIB_X_STR-BUILDX sy-vline 
WA_RNPAP_ATTRIB_X_STR-FLOORX sy-vline 
WA_RNPAP_ATTRIB_X_STR-ROOMX sy-vline 
WA_RNPAP_ATTRIB_X_STR-EMAILX sy-vline 
WA_RNPAP_ATTRIB_X_STR-HSNM1X sy-vline 
WA_RNPAP_ATTRIB_X_STR-/ISHFR/BIRTHRKX sy-vline      INTO ld_text SEPARATED BY SPACE.

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