ABAP Select data from SAP table RN1WP_PTS_LIST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1WP_PTS_LIST 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 RN1WP_PTS_LIST. 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 RN1WP_PTS_LIST 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_RN1WP_PTS_LIST TYPE STANDARD TABLE OF RN1WP_PTS_LIST,
      WA_RN1WP_PTS_LIST TYPE RN1WP_PTS_LIST,
      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: <RN1WP_PTS_LIST> TYPE RN1WP_PTS_LIST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1WP_PTS_LIST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1WP_PTS_LIST
  INTO TABLE IT_RN1WP_PTS_LIST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1WP_PTS_LIST
*  INTO TABLE @DATA(IT_RN1WP_PTS_LIST2).
*--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_RN1WP_PTS_LIST INDEX 1 INTO DATA(WA_RN1WP_PTS_LIST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1WP_PTS_LIST ASSIGNING <RN1WP_PTS_LIST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1WP_PTS_LIST>-FATID = 1.
<RN1WP_PTS_LIST>-DATAG = 1.
<RN1WP_PTS_LIST>-UZTAG = 1.
<RN1WP_PTS_LIST>-PATNR = 1.
<RN1WP_PTS_LIST>-PAPID = 1.

ENDLOOP.

LOOP AT IT_RN1WP_PTS_LIST INTO WA_RN1WP_PTS_LIST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1WP_PTS_LIST-PNAME, sy-vline,
  WA_RN1WP_PTS_LIST-TPTYP, sy-vline,
  WA_RN1WP_PTS_LIST-ICON_HIN, sy-vline,
  WA_RN1WP_PTS_LIST-FSTID, sy-vline,
  WA_RN1WP_PTS_LIST-FSTXT, sy-vline,
  WA_RN1WP_PTS_LIST-FSRFG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1WP_PTS_LIST 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_RN1WP_PTS_LIST 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_RN1WP_PTS_LIST INTO WA_RN1WP_PTS_LIST.


*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 PATNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1WP_PTS_LIST-PATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1WP_PTS_LIST-PATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PAPID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1WP_PTS_LIST-PAPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1WP_PTS_LIST-PAPID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1WP_PTS_LIST-ORGAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1WP_PTS_LIST-ORGAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BAUAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1WP_PTS_LIST-BAUAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1WP_PTS_LIST-BAUAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGZL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1WP_PTS_LIST-ORGZL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1WP_PTS_LIST-ORGZL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BAUZL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1WP_PTS_LIST-BAUZL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1WP_PTS_LIST-BAUZL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TMNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1WP_PTS_LIST-TMNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1WP_PTS_LIST-TMNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TMNZL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1WP_PTS_LIST-TMNZL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1WP_PTS_LIST-TMNZL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGFD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1WP_PTS_LIST-ORGFD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1WP_PTS_LIST-ORGFD.
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_RN1WP_PTS_LIST_STR, 
FATID TYPE STRING,
DATAG TYPE STRING,
UZTAG TYPE STRING,
PATNR TYPE STRING,
PAPID TYPE STRING,
PNAME TYPE STRING,
TPTYP TYPE STRING,
ICON_HIN TYPE STRING,
FSTID TYPE STRING,
FSTXT TYPE STRING,
FSRFG TYPE STRING,
ORGAG TYPE STRING,
BAUAG TYPE STRING,
ORGZL TYPE STRING,
BAUZL TYPE STRING,
TMNAG TYPE STRING,
TMNZL TYPE STRING,
TMNZT TYPE STRING,
TPPRI TYPE STRING,
TPAE TYPE STRING,
REMRK TYPE STRING,
UZTZL TYPE STRING,
DATZL TYPE STRING,
TPPRIE TYPE STRING,
TPATXT TYPE STRING,
ORGFD TYPE STRING,
TRANS TYPE STRING,
TRANSTXT TYPE STRING,
TRAVA TYPE STRING,
TRAVA_ICON TYPE STRING,
NO_TC_ICON TYPE STRING,
CT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1WP_PTS_LIST_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_RN1WP_PTS_LIST_STR-FATID sy-vline 
WA_RN1WP_PTS_LIST_STR-DATAG sy-vline 
WA_RN1WP_PTS_LIST_STR-UZTAG sy-vline 
WA_RN1WP_PTS_LIST_STR-PATNR sy-vline 
WA_RN1WP_PTS_LIST_STR-PAPID sy-vline 
WA_RN1WP_PTS_LIST_STR-PNAME sy-vline 
WA_RN1WP_PTS_LIST_STR-TPTYP sy-vline 
WA_RN1WP_PTS_LIST_STR-ICON_HIN sy-vline 
WA_RN1WP_PTS_LIST_STR-FSTID sy-vline 
WA_RN1WP_PTS_LIST_STR-FSTXT sy-vline 
WA_RN1WP_PTS_LIST_STR-FSRFG sy-vline 
WA_RN1WP_PTS_LIST_STR-ORGAG sy-vline 
WA_RN1WP_PTS_LIST_STR-BAUAG sy-vline 
WA_RN1WP_PTS_LIST_STR-ORGZL sy-vline 
WA_RN1WP_PTS_LIST_STR-BAUZL sy-vline 
WA_RN1WP_PTS_LIST_STR-TMNAG sy-vline 
WA_RN1WP_PTS_LIST_STR-TMNZL sy-vline 
WA_RN1WP_PTS_LIST_STR-TMNZT sy-vline 
WA_RN1WP_PTS_LIST_STR-TPPRI sy-vline 
WA_RN1WP_PTS_LIST_STR-TPAE sy-vline 
WA_RN1WP_PTS_LIST_STR-REMRK sy-vline 
WA_RN1WP_PTS_LIST_STR-UZTZL sy-vline 
WA_RN1WP_PTS_LIST_STR-DATZL sy-vline 
WA_RN1WP_PTS_LIST_STR-TPPRIE sy-vline 
WA_RN1WP_PTS_LIST_STR-TPATXT sy-vline 
WA_RN1WP_PTS_LIST_STR-ORGFD sy-vline 
WA_RN1WP_PTS_LIST_STR-TRANS sy-vline 
WA_RN1WP_PTS_LIST_STR-TRANSTXT sy-vline 
WA_RN1WP_PTS_LIST_STR-TRAVA sy-vline 
WA_RN1WP_PTS_LIST_STR-TRAVA_ICON sy-vline 
WA_RN1WP_PTS_LIST_STR-NO_TC_ICON sy-vline 
WA_RN1WP_PTS_LIST_STR-CT sy-vline      INTO ld_text SEPARATED BY SPACE.

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