ABAP Select data from SAP table CO23D into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CO23D 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 CO23D. 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 CO23D 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_CO23D TYPE STANDARD TABLE OF CO23D,
      WA_CO23D TYPE CO23D,
      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: <CO23D> TYPE CO23D.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CO23D.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CO23D
  INTO TABLE IT_CO23D.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CO23D
*  INTO TABLE @DATA(IT_CO23D2).
*--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_CO23D INDEX 1 INTO DATA(WA_CO23D2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CO23D ASSIGNING <CO23D>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CO23D>-SELECTED = 1.
<CO23D>-POST = 1.
<CO23D>-BELNR = 1.
<CO23D>-ZLENR = 1.
<CO23D>-HPZLE = 1.

ENDLOOP.

LOOP AT IT_CO23D INTO WA_CO23D.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CO23D-WTGBTR, sy-vline,
  WA_CO23D-TWAER, sy-vline,
  WA_CO23D-MBGBTR, sy-vline,
  WA_CO23D-MEINB, sy-vline,
  WA_CO23D-EOBART1, sy-vline,
  WA_CO23D-EOBJT1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CO23D 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_CO23D 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_CO23D INTO WA_CO23D.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WTGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-WTGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-WTGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINB
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-MEINB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-MEINB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OBART, internal->external for field EOBART1
CALL FUNCTION 'CONVERSION_EXIT_OBART_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-EOBART1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-EOBART1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OBART, internal->external for field EOBART2
CALL FUNCTION 'CONVERSION_EXIT_OBART_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-EOBART2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-EOBART2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OBART, internal->external for field EOBART3
CALL FUNCTION 'CONVERSION_EXIT_OBART_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-EOBART3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-EOBART3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OBART, internal->external for field EOBART4
CALL FUNCTION 'CONVERSION_EXIT_OBART_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-EOBART4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-EOBART4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-KSTAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BEKNZ, internal->external for field BEKNZ
CALL FUNCTION 'CONVERSION_EXIT_BEKNZ_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-BEKNZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-BEKNZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-RECID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-RECID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CO23D-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CO23D-MATNR.
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_CO23D_STR, 
SELECTED TYPE STRING,
POST TYPE STRING,
BELNR TYPE STRING,
ZLENR TYPE STRING,
HPZLE TYPE STRING,
WTGBTR TYPE STRING,
TWAER TYPE STRING,
MBGBTR TYPE STRING,
MEINB TYPE STRING,
EOBART1 TYPE STRING,
EOBJT1 TYPE STRING,
EOBJTXT1 TYPE STRING,
EOBART2 TYPE STRING,
EOBJT2 TYPE STRING,
EOBJTXT2 TYPE STRING,
EOBART3 TYPE STRING,
EOBJT3 TYPE STRING,
EOBJTXT3 TYPE STRING,
EOBART4 TYPE STRING,
EOBJT4 TYPE STRING,
EOBJTXT4 TYPE STRING,
GEBER TYPE STRING,
FKBER TYPE STRING,
GRANT_NBR TYPE STRING,
NAME TYPE STRING,
PERNR TYPE STRING,
SGTXT TYPE STRING,
KSTAR TYPE STRING,
BEKNZ TYPE STRING,
RECID TYPE STRING,
BEMOT TYPE STRING,
MATNR TYPE STRING,
BUDGET_PD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CO23D_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_CO23D_STR-SELECTED sy-vline 
WA_CO23D_STR-POST sy-vline 
WA_CO23D_STR-BELNR sy-vline 
WA_CO23D_STR-ZLENR sy-vline 
WA_CO23D_STR-HPZLE sy-vline 
WA_CO23D_STR-WTGBTR sy-vline 
WA_CO23D_STR-TWAER sy-vline 
WA_CO23D_STR-MBGBTR sy-vline 
WA_CO23D_STR-MEINB sy-vline 
WA_CO23D_STR-EOBART1 sy-vline 
WA_CO23D_STR-EOBJT1 sy-vline 
WA_CO23D_STR-EOBJTXT1 sy-vline 
WA_CO23D_STR-EOBART2 sy-vline 
WA_CO23D_STR-EOBJT2 sy-vline 
WA_CO23D_STR-EOBJTXT2 sy-vline 
WA_CO23D_STR-EOBART3 sy-vline 
WA_CO23D_STR-EOBJT3 sy-vline 
WA_CO23D_STR-EOBJTXT3 sy-vline 
WA_CO23D_STR-EOBART4 sy-vline 
WA_CO23D_STR-EOBJT4 sy-vline 
WA_CO23D_STR-EOBJTXT4 sy-vline 
WA_CO23D_STR-GEBER sy-vline 
WA_CO23D_STR-FKBER sy-vline 
WA_CO23D_STR-GRANT_NBR sy-vline 
WA_CO23D_STR-NAME sy-vline 
WA_CO23D_STR-PERNR sy-vline 
WA_CO23D_STR-SGTXT sy-vline 
WA_CO23D_STR-KSTAR sy-vline 
WA_CO23D_STR-BEKNZ sy-vline 
WA_CO23D_STR-RECID sy-vline 
WA_CO23D_STR-BEMOT sy-vline 
WA_CO23D_STR-MATNR sy-vline 
WA_CO23D_STR-BUDGET_PD sy-vline      INTO ld_text SEPARATED BY SPACE.

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