ABAP Select data from SAP table RN1_VIEW_ADM_APPS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1_VIEW_ADM_APPS 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_VIEW_ADM_APPS. 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_VIEW_ADM_APPS 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_VIEW_ADM_APPS TYPE STANDARD TABLE OF RN1_VIEW_ADM_APPS,
      WA_RN1_VIEW_ADM_APPS TYPE RN1_VIEW_ADM_APPS,
      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_VIEW_ADM_APPS> TYPE RN1_VIEW_ADM_APPS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1_VIEW_ADM_APPS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1_VIEW_ADM_APPS
  INTO TABLE IT_RN1_VIEW_ADM_APPS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1_VIEW_ADM_APPS
*  INTO TABLE @DATA(IT_RN1_VIEW_ADM_APPS2).
*--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_VIEW_ADM_APPS INDEX 1 INTO DATA(WA_RN1_VIEW_ADM_APPS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1_VIEW_ADM_APPS ASSIGNING <RN1_VIEW_ADM_APPS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1_VIEW_ADM_APPS>-RFZIF = 1.
<RN1_VIEW_ADM_APPS>-PNAMEC = 1.
<RN1_VIEW_ADM_APPS>-NNAME = 1.
<RN1_VIEW_ADM_APPS>-VNAME = 1.
<RN1_VIEW_ADM_APPS>-NNAMS = 1.

ENDLOOP.

LOOP AT IT_RN1_VIEW_ADM_APPS INTO WA_RN1_VIEW_ADM_APPS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1_VIEW_ADM_APPS-VNAMS, sy-vline,
  WA_RN1_VIEW_ADM_APPS-GBNAM, sy-vline,
  WA_RN1_VIEW_ADM_APPS-GBNAS, sy-vline,
  WA_RN1_VIEW_ADM_APPS-TELF1, sy-vline,
  WA_RN1_VIEW_ADM_APPS-PVPAT, sy-vline,
  WA_RN1_VIEW_ADM_APPS-GSCHLE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1_VIEW_ADM_APPS 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_VIEW_ADM_APPS 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_VIEW_ADM_APPS INTO WA_RN1_VIEW_ADM_APPS.


*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 ORGFA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-ORGFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-ORGFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-ORGID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-ORGID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TMNOE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-TMNOE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-TMNOE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WLPRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-WLPRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-WLPRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EARNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-EARNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-EARNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HARNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-HARNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-HARNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EXTKH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-EXTKH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-EXTKH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PATNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-PATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-PATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PAPID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-PAPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-PAPID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TMNID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-TMNID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-TMNID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRGNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-PRGNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-PRGNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ZIMMR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-ZIMMR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-ZIMMR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PERNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_VIEW_ADM_APPS-PERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_VIEW_ADM_APPS-PERNR.
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_VIEW_ADM_APPS_STR, 
RFZIF TYPE STRING,
PNAMEC TYPE STRING,
NNAME TYPE STRING,
VNAME TYPE STRING,
NNAMS TYPE STRING,
VNAMS TYPE STRING,
GBNAM TYPE STRING,
GBNAS TYPE STRING,
TELF1 TYPE STRING,
PVPAT TYPE STRING,
GSCHLE TYPE STRING,
GBDAT TYPE STRING,
AGE TYPE STRING,
PNAMEC1 TYPE STRING,
ORGFA TYPE STRING,
ORGFA_KB TYPE STRING,
ORGID TYPE STRING,
ORGID_KB TYPE STRING,
TMNDT TYPE STRING,
TMNZT TYPE STRING,
TMNOE TYPE STRING,
TMNOE_KB TYPE STRING,
AFNDT TYPE STRING,
AFNZT TYPE STRING,
WLPRI TYPE STRING,
WLPRI_TXT TYPE STRING,
BMVKG TYPE STRING,
DITXT TYPE STRING,
KANAM TYPE STRING,
SERVICES_CODE TYPE STRING,
SERVICES_TEXT TYPE STRING,
EARNR TYPE STRING,
HARNR TYPE STRING,
HAR_NAME TYPE STRING,
EXTKH TYPE STRING,
EXTKH_NAME TYPE STRING,
PATNR TYPE STRING,
PAPID TYPE STRING,
TMNID TYPE STRING,
VKGID TYPE STRING,
PRGNR TYPE STRING,
BEMRK TYPE STRING,
MEDTX TYPE STRING,
ZIMMR TYPE STRING,
ZIMMR_KB TYPE STRING,
PERNR TYPE STRING,
PERNM TYPE STRING,
DSPTY TYPE STRING,
DSPTY_TX TYPE STRING,
BWART TYPE STRING,
BWART_TX TYPE STRING,
TPART TYPE STRING,
TPART_TX TYPE STRING,
EARNR_NM TYPE STRING,
PRTID TYPE STRING,
PRTSN TYPE STRING,
PRTNM TYPE STRING,
WLSTA TYPE STRING,
WLSTATX TYPE STRING,
WLTYP TYPE STRING,
WLTYPETX TYPE STRING,
NO_TC_ICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1_VIEW_ADM_APPS_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_VIEW_ADM_APPS_STR-RFZIF sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-PNAMEC sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-NNAME sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-VNAME sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-NNAMS sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-VNAMS sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-GBNAM sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-GBNAS sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-TELF1 sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-PVPAT sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-GSCHLE sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-GBDAT sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-AGE sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-PNAMEC1 sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-ORGFA sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-ORGFA_KB sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-ORGID sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-ORGID_KB sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-TMNDT sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-TMNZT sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-TMNOE sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-TMNOE_KB sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-AFNDT sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-AFNZT sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-WLPRI sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-WLPRI_TXT sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-BMVKG sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-DITXT sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-KANAM sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-SERVICES_CODE sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-SERVICES_TEXT sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-EARNR sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-HARNR sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-HAR_NAME sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-EXTKH sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-EXTKH_NAME sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-PATNR sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-PAPID sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-TMNID sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-VKGID sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-PRGNR sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-BEMRK sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-MEDTX sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-ZIMMR sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-ZIMMR_KB sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-PERNR sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-PERNM sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-DSPTY sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-DSPTY_TX sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-BWART sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-BWART_TX sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-TPART sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-TPART_TX sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-EARNR_NM sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-PRTID sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-PRTSN sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-PRTNM sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-WLSTA sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-WLSTATX sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-WLTYP sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-WLTYPETX sy-vline 
WA_RN1_VIEW_ADM_APPS_STR-NO_TC_ICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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