ABAP Select data from SAP table RFVIWEBLINK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFVIWEBLINK
*  INTO TABLE @DATA(IT_RFVIWEBLINK2).
*--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_RFVIWEBLINK INDEX 1 INTO DATA(WA_RFVIWEBLINK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFVIWEBLINK>-SSERVICE = 1.
<RFVIWEBLINK>-SGROUPID = 1.
<RFVIWEBLINK>-SLFDNUM = 1.
<RFVIWEBLINK>-UCOMM = 1.
<RFVIWEBLINK>-URL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFVIWEBLINK-SUBREPID, sy-vline,
  WA_RFVIWEBLINK-SUBDYNNR, sy-vline,
  WA_RFVIWEBLINK-SUBPARAM, sy-vline,
  WA_RFVIWEBLINK-XPICTURE, sy-vline,
  WA_RFVIWEBLINK-JMARKED, sy-vline,
  WA_RFVIWEBLINK-JINACTIVE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFVIWEBLINK 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_RFVIWEBLINK 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_RFVIWEBLINK INTO WA_RFVIWEBLINK.


*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_RFVIWEBLINK_STR, 
SSERVICE TYPE STRING,
SGROUPID TYPE STRING,
SLFDNUM TYPE STRING,
UCOMM TYPE STRING,
URL TYPE STRING,
SUBREPID TYPE STRING,
SUBDYNNR TYPE STRING,
SUBPARAM TYPE STRING,
XPICTURE TYPE STRING,
JMARKED TYPE STRING,
JINACTIVE TYPE STRING,
XTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFVIWEBLINK_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_RFVIWEBLINK_STR-SSERVICE sy-vline 
WA_RFVIWEBLINK_STR-SGROUPID sy-vline 
WA_RFVIWEBLINK_STR-SLFDNUM sy-vline 
WA_RFVIWEBLINK_STR-UCOMM sy-vline 
WA_RFVIWEBLINK_STR-URL sy-vline 
WA_RFVIWEBLINK_STR-SUBREPID sy-vline 
WA_RFVIWEBLINK_STR-SUBDYNNR sy-vline 
WA_RFVIWEBLINK_STR-SUBPARAM sy-vline 
WA_RFVIWEBLINK_STR-XPICTURE sy-vline 
WA_RFVIWEBLINK_STR-JMARKED sy-vline 
WA_RFVIWEBLINK_STR-JINACTIVE sy-vline 
WA_RFVIWEBLINK_STR-XTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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