ABAP Select data from SAP table SI_COPA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SI_COPA
*  INTO TABLE @DATA(IT_SI_COPA2).
*--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_SI_COPA INDEX 1 INTO DATA(WA_SI_COPA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SI_COPA>-WWI00 = 1.
<SI_COPA>-WWI00 = 1.
<SI_COPA>-WWI01 = 1.
<SI_COPA>-WWI01 = 1.
<SI_COPA>-WWI02 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SI_COPA-WWI02, sy-vline,
  WA_SI_COPA-WWI10, sy-vline,
  WA_SI_COPA-WWI10, sy-vline,
  WA_SI_COPA-WWI11, sy-vline,
  WA_SI_COPA-WWI11, sy-vline,
  WA_SI_COPA-WWI12, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SI_COPA 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_SI_COPA 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_SI_COPA INTO WA_SI_COPA.


*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_SI_COPA_STR, 
WWI00 TYPE STRING,
WWI00 TYPE STRING,
WWI01 TYPE STRING,
WWI01 TYPE STRING,
WWI02 TYPE STRING,
WWI02 TYPE STRING,
WWI10 TYPE STRING,
WWI10 TYPE STRING,
WWI11 TYPE STRING,
WWI11 TYPE STRING,
WWI12 TYPE STRING,
WWI12 TYPE STRING,
WWI13 TYPE STRING,
WWI13 TYPE STRING,
WWI20 TYPE STRING,
WWI20 TYPE STRING,
WWI30 TYPE STRING,
WWI30 TYPE STRING,
WWI40 TYPE STRING,
WWI40 TYPE STRING,
WWI50 TYPE STRING,
WWI50 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SI_COPA_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_SI_COPA_STR-WWI00 sy-vline 
WA_SI_COPA_STR-WWI00 sy-vline 
WA_SI_COPA_STR-WWI01 sy-vline 
WA_SI_COPA_STR-WWI01 sy-vline 
WA_SI_COPA_STR-WWI02 sy-vline 
WA_SI_COPA_STR-WWI02 sy-vline 
WA_SI_COPA_STR-WWI10 sy-vline 
WA_SI_COPA_STR-WWI10 sy-vline 
WA_SI_COPA_STR-WWI11 sy-vline 
WA_SI_COPA_STR-WWI11 sy-vline 
WA_SI_COPA_STR-WWI12 sy-vline 
WA_SI_COPA_STR-WWI12 sy-vline 
WA_SI_COPA_STR-WWI13 sy-vline 
WA_SI_COPA_STR-WWI13 sy-vline 
WA_SI_COPA_STR-WWI20 sy-vline 
WA_SI_COPA_STR-WWI20 sy-vline 
WA_SI_COPA_STR-WWI30 sy-vline 
WA_SI_COPA_STR-WWI30 sy-vline 
WA_SI_COPA_STR-WWI40 sy-vline 
WA_SI_COPA_STR-WWI40 sy-vline 
WA_SI_COPA_STR-WWI50 sy-vline 
WA_SI_COPA_STR-WWI50 sy-vline      INTO ld_text SEPARATED BY SPACE.

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