ABAP Select data from SAP table TCORW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TCORW
*  INTO TABLE @DATA(IT_TCORW2).
*--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_TCORW INDEX 1 INTO DATA(WA_TCORW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TCORW>-AUTYP = 1.
<TCORW>-FCODE = 1.
<TCORW>-DYNPRO = 1.
<TCORW>-DYNP1 = 1.
<TCORW>-WIN1X1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TCORW-WIN1Y1, sy-vline,
  WA_TCORW-WIN1X2, sy-vline,
  WA_TCORW-WIN1Y2, sy-vline,
  WA_TCORW-CALL1, sy-vline,
  WA_TCORW-SET1, sy-vline,
  WA_TCORW-LEAVE1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TCORW 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_TCORW 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_TCORW INTO WA_TCORW.


*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_TCORW_STR, 
AUTYP TYPE STRING,
FCODE TYPE STRING,
DYNPRO TYPE STRING,
DYNP1 TYPE STRING,
WIN1X1 TYPE STRING,
WIN1Y1 TYPE STRING,
WIN1X2 TYPE STRING,
WIN1Y2 TYPE STRING,
CALL1 TYPE STRING,
SET1 TYPE STRING,
LEAVE1 TYPE STRING,
DYNP2 TYPE STRING,
WIN2X1 TYPE STRING,
WIN2Y1 TYPE STRING,
WIN2X2 TYPE STRING,
WIN2Y2 TYPE STRING,
CALL2 TYPE STRING,
SET2 TYPE STRING,
LEAVE2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TCORW_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_TCORW_STR-AUTYP sy-vline 
WA_TCORW_STR-FCODE sy-vline 
WA_TCORW_STR-DYNPRO sy-vline 
WA_TCORW_STR-DYNP1 sy-vline 
WA_TCORW_STR-WIN1X1 sy-vline 
WA_TCORW_STR-WIN1Y1 sy-vline 
WA_TCORW_STR-WIN1X2 sy-vline 
WA_TCORW_STR-WIN1Y2 sy-vline 
WA_TCORW_STR-CALL1 sy-vline 
WA_TCORW_STR-SET1 sy-vline 
WA_TCORW_STR-LEAVE1 sy-vline 
WA_TCORW_STR-DYNP2 sy-vline 
WA_TCORW_STR-WIN2X1 sy-vline 
WA_TCORW_STR-WIN2Y1 sy-vline 
WA_TCORW_STR-WIN2X2 sy-vline 
WA_TCORW_STR-WIN2Y2 sy-vline 
WA_TCORW_STR-CALL2 sy-vline 
WA_TCORW_STR-SET2 sy-vline 
WA_TCORW_STR-LEAVE2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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