ABAP Select data from SAP table RNGPAX 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 RNGPAX 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 RNGPAX. 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 RNGPAX 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_RNGPAX TYPE STANDARD TABLE OF RNGPAX,
      WA_RNGPAX TYPE RNGPAX,
      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: <RNGPAX> TYPE RNGPAX.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNGPAX
*  INTO TABLE @DATA(IT_RNGPAX2).
*--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_RNGPAX INDEX 1 INTO DATA(WA_RNGPAX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNGPAX>-GPART = 1.
<RNGPAX>-INSTN = 1.
<RNGPAX>-INSTN_X = 1.
<RNGPAX>-NAME1 = 1.
<RNGPAX>-NAME1_X = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNGPAX-NAME2, sy-vline,
  WA_RNGPAX-NAME2_X, sy-vline,
  WA_RNGPAX-NAME3, sy-vline,
  WA_RNGPAX-NAME3_X, sy-vline,
  WA_RNGPAX-KNAME, sy-vline,
  WA_RNGPAX-KNAME_X, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNGPAX 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_RNGPAX 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_RNGPAX INTO WA_RNGPAX.


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

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RNGPAX-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNGPAX-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_RNGPAX-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNGPAX-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_RNGPAX_STR, 
GPART TYPE STRING,
INSTN TYPE STRING,
INSTN_X TYPE STRING,
NAME1 TYPE STRING,
NAME1_X TYPE STRING,
NAME2 TYPE STRING,
NAME2_X TYPE STRING,
NAME3 TYPE STRING,
NAME3_X TYPE STRING,
KNAME TYPE STRING,
KNAME_X TYPE STRING,
NPKZ TYPE STRING,
NPKZ_X TYPE STRING,
SPRAS TYPE STRING,
SPRAS_ISO TYPE STRING,
SPRAS_X TYPE STRING,
ANRDE TYPE STRING,
ANRDE_X TYPE STRING,
TITEL TYPE STRING,
TITEL_X TYPE STRING,
NAMZU TYPE STRING,
NAMZU_X TYPE STRING,
VORSW TYPE STRING,
VORSW_X TYPE STRING,
GSCHLE TYPE STRING,
GSCHLE_X TYPE STRING,
LAND TYPE STRING,
LAND_X TYPE STRING,
REGIO TYPE STRING,
REGIO_X TYPE STRING,
PSTLZ TYPE STRING,
PSTLZ_X TYPE STRING,
PFACH TYPE STRING,
PFACH_X TYPE STRING,
PLZPF TYPE STRING,
PLZPF_X TYPE STRING,
LANPF TYPE STRING,
LANPF_X TYPE STRING,
ORTPF TYPE STRING,
ORTPF_X TYPE STRING,
ORT TYPE STRING,
ORT_X TYPE STRING,
ORT2 TYPE STRING,
ORT2_X TYPE STRING,
STRAS TYPE STRING,
STRAS_X TYPE STRING,
TELNR_X TYPE STRING,
TELFX TYPE STRING,
TELFX_X TYPE STRING,
TELEX TYPE STRING,
TELEX_X TYPE STRING,
EMAIL TYPE STRING,
EMAIL_X TYPE STRING,
LOEKZ TYPE STRING,
LOEKZ_X TYPE STRING,
SPVON TYPE STRING,
SPVON_X TYPE STRING,
SPBIS TYPE STRING,
SPBIS_X TYPE STRING,
SPBEM_X TYPE STRING,
PNUMB TYPE STRING,
PNUMB_X TYPE STRING,
STCD1 TYPE STRING,
STCD1_X TYPE STRING,
BEM_X TYPE STRING,
PARTNER_GUID TYPE STRING,
TITEL1 TYPE STRING,
TITEL1_X TYPE STRING,
HOUSE_NO TYPE STRING,
HOUSE_NOX TYPE STRING,
BUILD TYPE STRING,
BUILD_X TYPE STRING,
FLOOR TYPE STRING,
FLOOR_X TYPE STRING,
ROOM TYPE STRING,
ROOM_X TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNGPAX_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_RNGPAX_STR-GPART sy-vline 
WA_RNGPAX_STR-INSTN sy-vline 
WA_RNGPAX_STR-INSTN_X sy-vline 
WA_RNGPAX_STR-NAME1 sy-vline 
WA_RNGPAX_STR-NAME1_X sy-vline 
WA_RNGPAX_STR-NAME2 sy-vline 
WA_RNGPAX_STR-NAME2_X sy-vline 
WA_RNGPAX_STR-NAME3 sy-vline 
WA_RNGPAX_STR-NAME3_X sy-vline 
WA_RNGPAX_STR-KNAME sy-vline 
WA_RNGPAX_STR-KNAME_X sy-vline 
WA_RNGPAX_STR-NPKZ sy-vline 
WA_RNGPAX_STR-NPKZ_X sy-vline 
WA_RNGPAX_STR-SPRAS sy-vline 
WA_RNGPAX_STR-SPRAS_ISO sy-vline 
WA_RNGPAX_STR-SPRAS_X sy-vline 
WA_RNGPAX_STR-ANRDE sy-vline 
WA_RNGPAX_STR-ANRDE_X sy-vline 
WA_RNGPAX_STR-TITEL sy-vline 
WA_RNGPAX_STR-TITEL_X sy-vline 
WA_RNGPAX_STR-NAMZU sy-vline 
WA_RNGPAX_STR-NAMZU_X sy-vline 
WA_RNGPAX_STR-VORSW sy-vline 
WA_RNGPAX_STR-VORSW_X sy-vline 
WA_RNGPAX_STR-GSCHLE sy-vline 
WA_RNGPAX_STR-GSCHLE_X sy-vline 
WA_RNGPAX_STR-LAND sy-vline 
WA_RNGPAX_STR-LAND_X sy-vline 
WA_RNGPAX_STR-REGIO sy-vline 
WA_RNGPAX_STR-REGIO_X sy-vline 
WA_RNGPAX_STR-PSTLZ sy-vline 
WA_RNGPAX_STR-PSTLZ_X sy-vline 
WA_RNGPAX_STR-PFACH sy-vline 
WA_RNGPAX_STR-PFACH_X sy-vline 
WA_RNGPAX_STR-PLZPF sy-vline 
WA_RNGPAX_STR-PLZPF_X sy-vline 
WA_RNGPAX_STR-LANPF sy-vline 
WA_RNGPAX_STR-LANPF_X sy-vline 
WA_RNGPAX_STR-ORTPF sy-vline 
WA_RNGPAX_STR-ORTPF_X sy-vline 
WA_RNGPAX_STR-ORT sy-vline 
WA_RNGPAX_STR-ORT_X sy-vline 
WA_RNGPAX_STR-ORT2 sy-vline 
WA_RNGPAX_STR-ORT2_X sy-vline 
WA_RNGPAX_STR-STRAS sy-vline 
WA_RNGPAX_STR-STRAS_X sy-vline 
WA_RNGPAX_STR-TELNR_X sy-vline 
WA_RNGPAX_STR-TELFX sy-vline 
WA_RNGPAX_STR-TELFX_X sy-vline 
WA_RNGPAX_STR-TELEX sy-vline 
WA_RNGPAX_STR-TELEX_X sy-vline 
WA_RNGPAX_STR-EMAIL sy-vline 
WA_RNGPAX_STR-EMAIL_X sy-vline 
WA_RNGPAX_STR-LOEKZ sy-vline 
WA_RNGPAX_STR-LOEKZ_X sy-vline 
WA_RNGPAX_STR-SPVON sy-vline 
WA_RNGPAX_STR-SPVON_X sy-vline 
WA_RNGPAX_STR-SPBIS sy-vline 
WA_RNGPAX_STR-SPBIS_X sy-vline 
WA_RNGPAX_STR-SPBEM_X sy-vline 
WA_RNGPAX_STR-PNUMB sy-vline 
WA_RNGPAX_STR-PNUMB_X sy-vline 
WA_RNGPAX_STR-STCD1 sy-vline 
WA_RNGPAX_STR-STCD1_X sy-vline 
WA_RNGPAX_STR-BEM_X sy-vline 
WA_RNGPAX_STR-PARTNER_GUID sy-vline 
WA_RNGPAX_STR-TITEL1 sy-vline 
WA_RNGPAX_STR-TITEL1_X sy-vline 
WA_RNGPAX_STR-HOUSE_NO sy-vline 
WA_RNGPAX_STR-HOUSE_NOX sy-vline 
WA_RNGPAX_STR-BUILD sy-vline 
WA_RNGPAX_STR-BUILD_X sy-vline 
WA_RNGPAX_STR-FLOOR sy-vline 
WA_RNGPAX_STR-FLOOR_X sy-vline 
WA_RNGPAX_STR-ROOM sy-vline 
WA_RNGPAX_STR-ROOM_X sy-vline      INTO ld_text SEPARATED BY SPACE.

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