ABAP Select data from SAP table COO0S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP COO0S 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 COO0S. 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 COO0S 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_COO0S TYPE STANDARD TABLE OF COO0S,
      WA_COO0S TYPE COO0S,
      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: <COO0S> TYPE COO0S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_COO0S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM COO0S
  INTO TABLE IT_COO0S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COO0S
*  INTO TABLE @DATA(IT_COO0S2).
*--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_COO0S INDEX 1 INTO DATA(WA_COO0S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_COO0S ASSIGNING <COO0S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COO0S>-MODUS = 1.
<COO0S>-ZSTABN = 1.
<COO0S>-REPST = 1.
<COO0S>-TCHAN = 1.
<COO0S>-TSHOW = 1.

ENDLOOP.

LOOP AT IT_COO0S INTO WA_COO0S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COO0S-USEFOB, sy-vline,
  WA_COO0S-MDCAC, sy-vline,
  WA_COO0S-CALLM, sy-vline,
  WA_COO0S-FIXVAR, sy-vline,
  WA_COO0S-LOGSC, sy-vline,
  WA_COO0S-VESUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COO0S 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_COO0S 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_COO0S INTO WA_COO0S.


*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_COO0S_STR, 
MODUS TYPE STRING,
ZSTABN TYPE STRING,
REPST TYPE STRING,
TCHAN TYPE STRING,
TSHOW TYPE STRING,
USEFOB TYPE STRING,
MDCAC TYPE STRING,
CALLM TYPE STRING,
FIXVAR TYPE STRING,
LOGSC TYPE STRING,
VESUM TYPE STRING,
EMPFWDL TYPE STRING,
PLANACT TYPE STRING,
MDT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COO0S_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_COO0S_STR-MODUS sy-vline 
WA_COO0S_STR-ZSTABN sy-vline 
WA_COO0S_STR-REPST sy-vline 
WA_COO0S_STR-TCHAN sy-vline 
WA_COO0S_STR-TSHOW sy-vline 
WA_COO0S_STR-USEFOB sy-vline 
WA_COO0S_STR-MDCAC sy-vline 
WA_COO0S_STR-CALLM sy-vline 
WA_COO0S_STR-FIXVAR sy-vline 
WA_COO0S_STR-LOGSC sy-vline 
WA_COO0S_STR-VESUM sy-vline 
WA_COO0S_STR-EMPFWDL sy-vline 
WA_COO0S_STR-PLANACT sy-vline 
WA_COO0S_STR-MDT sy-vline      INTO ld_text SEPARATED BY SPACE.

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