ABAP Select data from SAP table WCB_RESULT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WCB_RESULT
*  INTO TABLE @DATA(IT_WCB_RESULT2).
*--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_WCB_RESULT INDEX 1 INTO DATA(WA_WCB_RESULT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WCB_RESULT>-RESAR = 1.
<WCB_RESULT>-ACCNT = 1.
<WCB_RESULT>-CLGRP = 1.
<WCB_RESULT>-CLCOD = 1.
<WCB_RESULT>-CRYER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WCB_RESULT-FYEAR, sy-vline,
  WA_WCB_RESULT-PAYTY, sy-vline,
  WA_WCB_RESULT-REGNR, sy-vline,
  WA_WCB_RESULT-WRATE, sy-vline,
  WA_WCB_RESULT-PRATE, sy-vline,
  WA_WCB_RESULT-MAXIM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WCB_RESULT 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_WCB_RESULT 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_WCB_RESULT INTO WA_WCB_RESULT.


*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 GJAHR, internal->external for field FYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_WCB_RESULT-FYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WCB_RESULT-FYEAR.
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_WCB_RESULT_STR, 
RESAR TYPE STRING,
ACCNT TYPE STRING,
CLGRP TYPE STRING,
CLCOD TYPE STRING,
CRYER TYPE STRING,
FYEAR TYPE STRING,
PAYTY TYPE STRING,
REGNR TYPE STRING,
WRATE TYPE STRING,
PRATE TYPE STRING,
MAXIM TYPE STRING,
PERNR TYPE STRING,
PERID TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
PINCO TYPE STRING,
PASSE TYPE STRING,
PEXCE TYPE STRING,
PPREM TYPE STRING,
CPREM TYPE STRING,
RASSE TYPE STRING,
RDIFF TYPE STRING,
YINCO TYPE STRING,
YASSE TYPE STRING,
YEXCE TYPE STRING,
YPREM TYPE STRING,
YPREC TYPE STRING,
EENUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WCB_RESULT_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_WCB_RESULT_STR-RESAR sy-vline 
WA_WCB_RESULT_STR-ACCNT sy-vline 
WA_WCB_RESULT_STR-CLGRP sy-vline 
WA_WCB_RESULT_STR-CLCOD sy-vline 
WA_WCB_RESULT_STR-CRYER sy-vline 
WA_WCB_RESULT_STR-FYEAR sy-vline 
WA_WCB_RESULT_STR-PAYTY sy-vline 
WA_WCB_RESULT_STR-REGNR sy-vline 
WA_WCB_RESULT_STR-WRATE sy-vline 
WA_WCB_RESULT_STR-PRATE sy-vline 
WA_WCB_RESULT_STR-MAXIM sy-vline 
WA_WCB_RESULT_STR-PERNR sy-vline 
WA_WCB_RESULT_STR-PERID sy-vline 
WA_WCB_RESULT_STR-NACHN sy-vline 
WA_WCB_RESULT_STR-VORNA sy-vline 
WA_WCB_RESULT_STR-PINCO sy-vline 
WA_WCB_RESULT_STR-PASSE sy-vline 
WA_WCB_RESULT_STR-PEXCE sy-vline 
WA_WCB_RESULT_STR-PPREM sy-vline 
WA_WCB_RESULT_STR-CPREM sy-vline 
WA_WCB_RESULT_STR-RASSE sy-vline 
WA_WCB_RESULT_STR-RDIFF sy-vline 
WA_WCB_RESULT_STR-YINCO sy-vline 
WA_WCB_RESULT_STR-YASSE sy-vline 
WA_WCB_RESULT_STR-YEXCE sy-vline 
WA_WCB_RESULT_STR-YPREM sy-vline 
WA_WCB_RESULT_STR-YPREC sy-vline 
WA_WCB_RESULT_STR-EENUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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