ABAP Select data from SAP table WFPRCD 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 WFPRCD 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 WFPRCD. 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 WFPRCD 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_WFPRCD TYPE STANDARD TABLE OF WFPRCD,
      WA_WFPRCD TYPE WFPRCD,
      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: <WFPRCD> TYPE WFPRCD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WFPRCD
*  INTO TABLE @DATA(IT_WFPRCD2).
*--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_WFPRCD INDEX 1 INTO DATA(WA_WFPRCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WFPRCD>-LSYST = 1.
<WFPRCD>-LMANDT = 1.
<WFPRCD>-LUSER = 1.
<WFPRCD>-LDATE = 1.
<WFPRCD>-LTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WFPRCD-LTEXT, sy-vline,
  WA_WFPRCD-PRCTP, sy-vline,
  WA_WFPRCD-PRSTAT, sy-vline,
  WA_WFPRCD-INWORK, sy-vline,
  WA_WFPRCD-PRPRI, sy-vline,
  WA_WFPRCD-LOEDK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WFPRCD 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_WFPRCD 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_WFPRCD INTO WA_WFPRCD.


*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_WFPRCD_STR, 
LSYST TYPE STRING,
LMANDT TYPE STRING,
LUSER TYPE STRING,
LDATE TYPE STRING,
LTIME TYPE STRING,
LTEXT TYPE STRING,
PRCTP TYPE STRING,
PRSTAT TYPE STRING,
INWORK TYPE STRING,
PRPRI TYPE STRING,
LOEDK TYPE STRING,
LRCODE TYPE STRING,
NUSERNAM TYPE STRING,
LUSERNAM TYPE STRING,
SYSTAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WFPRCD_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_WFPRCD_STR-LSYST sy-vline 
WA_WFPRCD_STR-LMANDT sy-vline 
WA_WFPRCD_STR-LUSER sy-vline 
WA_WFPRCD_STR-LDATE sy-vline 
WA_WFPRCD_STR-LTIME sy-vline 
WA_WFPRCD_STR-LTEXT sy-vline 
WA_WFPRCD_STR-PRCTP sy-vline 
WA_WFPRCD_STR-PRSTAT sy-vline 
WA_WFPRCD_STR-INWORK sy-vline 
WA_WFPRCD_STR-PRPRI sy-vline 
WA_WFPRCD_STR-LOEDK sy-vline 
WA_WFPRCD_STR-LRCODE sy-vline 
WA_WFPRCD_STR-NUSERNAM sy-vline 
WA_WFPRCD_STR-LUSERNAM sy-vline 
WA_WFPRCD_STR-SYSTAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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