ABAP Select data from SAP table SAPWLPFRSD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SAPWLPFRSD
*  INTO TABLE @DATA(IT_SAPWLPFRSD2).
*--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_SAPWLPFRSD INDEX 1 INTO DATA(WA_SAPWLPFRSD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SAPWLPFRSD>-RECEIVE = 1.
<SAPWLPFRSD>-SEND = 1.
<SAPWLPFRSD>-EXETIME = 1.
<SAPWLPFRSD>-CALLTIME = 1.
<SAPWLPFRSD>-CALLS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SAPWLPFRSD-TARGET, sy-vline,
  WA_SAPWLPFRSD-USERID, sy-vline,
  WA_SAPWLPFRSD-IP, sy-vline,
  WA_SAPWLPFRSD-REMOTEIP, sy-vline,
  WA_SAPWLPFRSD-DEST, sy-vline,
  WA_SAPWLPFRSD-REMOTEDEST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SAPWLPFRSD 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_SAPWLPFRSD 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_SAPWLPFRSD INTO WA_SAPWLPFRSD.


*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_SAPWLPFRSD_STR, 
RECEIVE TYPE STRING,
SEND TYPE STRING,
EXETIME TYPE STRING,
CALLTIME TYPE STRING,
CALLS TYPE STRING,
TARGET TYPE STRING,
USERID TYPE STRING,
IP TYPE STRING,
REMOTEIP TYPE STRING,
DEST TYPE STRING,
REMOTEDEST TYPE STRING,
PROGNAME TYPE STRING,
FUNCNAME TYPE STRING,
CALLER TYPE STRING,
RFCSTART TYPE STRING,
TID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SAPWLPFRSD_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_SAPWLPFRSD_STR-RECEIVE sy-vline 
WA_SAPWLPFRSD_STR-SEND sy-vline 
WA_SAPWLPFRSD_STR-EXETIME sy-vline 
WA_SAPWLPFRSD_STR-CALLTIME sy-vline 
WA_SAPWLPFRSD_STR-CALLS sy-vline 
WA_SAPWLPFRSD_STR-TARGET sy-vline 
WA_SAPWLPFRSD_STR-USERID sy-vline 
WA_SAPWLPFRSD_STR-IP sy-vline 
WA_SAPWLPFRSD_STR-REMOTEIP sy-vline 
WA_SAPWLPFRSD_STR-DEST sy-vline 
WA_SAPWLPFRSD_STR-REMOTEDEST sy-vline 
WA_SAPWLPFRSD_STR-PROGNAME sy-vline 
WA_SAPWLPFRSD_STR-FUNCNAME sy-vline 
WA_SAPWLPFRSD_STR-CALLER sy-vline 
WA_SAPWLPFRSD_STR-RFCSTART sy-vline 
WA_SAPWLPFRSD_STR-TID sy-vline      INTO ld_text SEPARATED BY SPACE.

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