ABAP Select data from SAP table COPA_ACTUAL_DATA_TRACE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COPA_ACTUAL_DATA_TRACE
*  INTO TABLE @DATA(IT_COPA_ACTUAL_DATA_TRACE2).
*--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_COPA_ACTUAL_DATA_TRACE INDEX 1 INTO DATA(WA_COPA_ACTUAL_DATA_TRACE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COPA_ACTUAL_DATA_TRACE>-TRACE_ID = 1.
<COPA_ACTUAL_DATA_TRACE>-TRACE_ADFL = 1.
<COPA_ACTUAL_DATA_TRACE>-TRACE_DERI = 1.
<COPA_ACTUAL_DATA_TRACE>-TRACE_VAAN = 1.
<COPA_ACTUAL_DATA_TRACE>-TRACE_COPC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COPA_ACTUAL_DATA_TRACE-TRACE_VAAN_TP, sy-vline,
  WA_COPA_ACTUAL_DATA_TRACE-TRACE_COPC_TP, sy-vline,
  WA_COPA_ACTUAL_DATA_TRACE-RBELN, sy-vline,
  WA_COPA_ACTUAL_DATA_TRACE-RPOSN, sy-vline,
  WA_COPA_ACTUAL_DATA_TRACE-VRGAR, sy-vline,
  WA_COPA_ACTUAL_DATA_TRACE-ERKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COPA_ACTUAL_DATA_TRACE 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_COPA_ACTUAL_DATA_TRACE 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_COPA_ACTUAL_DATA_TRACE INTO WA_COPA_ACTUAL_DATA_TRACE.


*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 ALPHA, internal->external for field RBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COPA_ACTUAL_DATA_TRACE-RBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COPA_ACTUAL_DATA_TRACE-RBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COPA_ACTUAL_DATA_TRACE-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COPA_ACTUAL_DATA_TRACE-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STO_BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COPA_ACTUAL_DATA_TRACE-STO_BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COPA_ACTUAL_DATA_TRACE-STO_BELNR.
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_COPA_ACTUAL_DATA_TRACE_STR, 
TRACE_ID TYPE STRING,
TRACE_ADFL TYPE STRING,
TRACE_DERI TYPE STRING,
TRACE_VAAN TYPE STRING,
TRACE_COPC TYPE STRING,
TRACE_VAAN_TP TYPE STRING,
TRACE_COPC_TP TYPE STRING,
RBELN TYPE STRING,
RPOSN TYPE STRING,
VRGAR TYPE STRING,
ERKRS TYPE STRING,
BELNR TYPE STRING,
POSNR TYPE STRING,
PAOBJNR TYPE STRING,
PASUBNR TYPE STRING,
STO_BELNR TYPE STRING,
STO_POSNR TYPE STRING,
GLVOR TYPE STRING,
FLAG TYPE STRING,
T_FIELDS TYPE STRING,
ZEILE TYPE STRING,
MSGTY TYPE STRING,
TEXT TYPE STRING,
ARBGB TYPE STRING,
TXTNR TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COPA_ACTUAL_DATA_TRACE_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_COPA_ACTUAL_DATA_TRACE_STR-TRACE_ID sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-TRACE_ADFL sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-TRACE_DERI sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-TRACE_VAAN sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-TRACE_COPC sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-TRACE_VAAN_TP sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-TRACE_COPC_TP sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-RBELN sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-RPOSN sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-VRGAR sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-ERKRS sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-BELNR sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-POSNR sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-PAOBJNR sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-PASUBNR sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-STO_BELNR sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-STO_POSNR sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-GLVOR sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-FLAG sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-T_FIELDS sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-ZEILE sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-MSGTY sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-TEXT sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-ARBGB sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-TXTNR sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-MSGV1 sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-MSGV2 sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-MSGV3 sy-vline 
WA_COPA_ACTUAL_DATA_TRACE_STR-MSGV4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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