ABAP Select data from SAP table PRP_TV_WFEVTLINK into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRP_TV_WFEVTLINK
*  INTO TABLE @DATA(IT_PRP_TV_WFEVTLINK2).
*--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_PRP_TV_WFEVTLINK INDEX 1 INTO DATA(WA_PRP_TV_WFEVTLINK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRP_TV_WFEVTLINK>-CLIENT = 1.
<PRP_TV_WFEVTLINK>-OBJCATEG = 1.
<PRP_TV_WFEVTLINK>-OBJTYPE = 1.
<PRP_TV_WFEVTLINK>-EVENT = 1.
<PRP_TV_WFEVTLINK>-RECTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRP_TV_WFEVTLINK-RECMODE, sy-vline,
  WA_PRP_TV_WFEVTLINK-RECCLASS, sy-vline,
  WA_PRP_TV_WFEVTLINK-RECINTERF, sy-vline,
  WA_PRP_TV_WFEVTLINK-RECMETH, sy-vline,
  WA_PRP_TV_WFEVTLINK-RECMETYP, sy-vline,
  WA_PRP_TV_WFEVTLINK-RECFB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRP_TV_WFEVTLINK 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_PRP_TV_WFEVTLINK 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_PRP_TV_WFEVTLINK INTO WA_PRP_TV_WFEVTLINK.


*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_PRP_TV_WFEVTLINK_STR, 
CLIENT TYPE STRING,
OBJCATEG TYPE STRING,
OBJTYPE TYPE STRING,
EVENT TYPE STRING,
RECTYPE TYPE STRING,
RECMODE TYPE STRING,
RECCLASS TYPE STRING,
RECINTERF TYPE STRING,
RECMETH TYPE STRING,
RECMETYP TYPE STRING,
RECFB TYPE STRING,
RECFBTYP TYPE STRING,
CHECKFB TYPE STRING,
CHKFBTYP TYPE STRING,
RECGETFB TYPE STRING,
GETFBTYP TYPE STRING,
RFCDEST TYPE STRING,
DESTTYP TYPE STRING,
TYPELINK TYPE STRING,
QUEUE TYPE STRING,
REC_ERROR TYPE STRING,
RECCATEG TYPE STRING,
RECTYPEID TYPE STRING,
ENABLED TYPE STRING,
STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRP_TV_WFEVTLINK_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_PRP_TV_WFEVTLINK_STR-CLIENT sy-vline 
WA_PRP_TV_WFEVTLINK_STR-OBJCATEG sy-vline 
WA_PRP_TV_WFEVTLINK_STR-OBJTYPE sy-vline 
WA_PRP_TV_WFEVTLINK_STR-EVENT sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RECTYPE sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RECMODE sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RECCLASS sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RECINTERF sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RECMETH sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RECMETYP sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RECFB sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RECFBTYP sy-vline 
WA_PRP_TV_WFEVTLINK_STR-CHECKFB sy-vline 
WA_PRP_TV_WFEVTLINK_STR-CHKFBTYP sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RECGETFB sy-vline 
WA_PRP_TV_WFEVTLINK_STR-GETFBTYP sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RFCDEST sy-vline 
WA_PRP_TV_WFEVTLINK_STR-DESTTYP sy-vline 
WA_PRP_TV_WFEVTLINK_STR-TYPELINK sy-vline 
WA_PRP_TV_WFEVTLINK_STR-QUEUE sy-vline 
WA_PRP_TV_WFEVTLINK_STR-REC_ERROR sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RECCATEG sy-vline 
WA_PRP_TV_WFEVTLINK_STR-RECTYPEID sy-vline 
WA_PRP_TV_WFEVTLINK_STR-ENABLED sy-vline 
WA_PRP_TV_WFEVTLINK_STR-STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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