ABAP Select data from SAP table COSSD into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP COSSD 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 COSSD. 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 COSSD 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_COSSD TYPE STANDARD TABLE OF COSSD,
      WA_COSSD TYPE COSSD,
      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: <COSSD> TYPE COSSD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COSSD
*  INTO TABLE @DATA(IT_COSSD2).
*--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_COSSD INDEX 1 INTO DATA(WA_COSSD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COSSD>-MANDT = 1.
<COSSD>-LEDNR = 1.
<COSSD>-OBJNR = 1.
<COSSD>-GJAHR = 1.
<COSSD>-WRTTP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COSSD-VERSN, sy-vline,
  WA_COSSD-KSTAR, sy-vline,
  WA_COSSD-HRKFT, sy-vline,
  WA_COSSD-VRGNG, sy-vline,
  WA_COSSD-PAROB, sy-vline,
  WA_COSSD-USPOB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COSSD 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_COSSD 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_COSSD INTO WA_COSSD.


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit AC152, internal->external for field WSGABG
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COSSD-WSGABG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COSSD-WSGABG.
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_COSSD_STR, 
MANDT TYPE STRING,
LEDNR TYPE STRING,
OBJNR TYPE STRING,
GJAHR TYPE STRING,
WRTTP TYPE STRING,
VERSN TYPE STRING,
KSTAR TYPE STRING,
HRKFT TYPE STRING,
VRGNG TYPE STRING,
PAROB TYPE STRING,
USPOB TYPE STRING,
BEKNZ TYPE STRING,
TWAER TYPE STRING,
MEINH TYPE STRING,
WTGABG TYPE STRING,
WOGABG TYPE STRING,
WKGABG TYPE STRING,
WKFABG TYPE STRING,
PAGABG TYPE STRING,
PAFABG TYPE STRING,
MEGABG TYPE STRING,
MEFABG TYPE STRING,
WAGABG TYPE STRING,
WVGABG TYPE STRING,
WBGABG TYPE STRING,
WCGABG TYPE STRING,
WDGABG TYPE STRING,
WEGABG TYPE STRING,
WFGABG TYPE STRING,
WGGABG TYPE STRING,
WHGABG TYPE STRING,
WSGABG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COSSD_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_COSSD_STR-MANDT sy-vline 
WA_COSSD_STR-LEDNR sy-vline 
WA_COSSD_STR-OBJNR sy-vline 
WA_COSSD_STR-GJAHR sy-vline 
WA_COSSD_STR-WRTTP sy-vline 
WA_COSSD_STR-VERSN sy-vline 
WA_COSSD_STR-KSTAR sy-vline 
WA_COSSD_STR-HRKFT sy-vline 
WA_COSSD_STR-VRGNG sy-vline 
WA_COSSD_STR-PAROB sy-vline 
WA_COSSD_STR-USPOB sy-vline 
WA_COSSD_STR-BEKNZ sy-vline 
WA_COSSD_STR-TWAER sy-vline 
WA_COSSD_STR-MEINH sy-vline 
WA_COSSD_STR-WTGABG sy-vline 
WA_COSSD_STR-WOGABG sy-vline 
WA_COSSD_STR-WKGABG sy-vline 
WA_COSSD_STR-WKFABG sy-vline 
WA_COSSD_STR-PAGABG sy-vline 
WA_COSSD_STR-PAFABG sy-vline 
WA_COSSD_STR-MEGABG sy-vline 
WA_COSSD_STR-MEFABG sy-vline 
WA_COSSD_STR-WAGABG sy-vline 
WA_COSSD_STR-WVGABG sy-vline 
WA_COSSD_STR-WBGABG sy-vline 
WA_COSSD_STR-WCGABG sy-vline 
WA_COSSD_STR-WDGABG sy-vline 
WA_COSSD_STR-WEGABG sy-vline 
WA_COSSD_STR-WFGABG sy-vline 
WA_COSSD_STR-WGGABG sy-vline 
WA_COSSD_STR-WHGABG sy-vline 
WA_COSSD_STR-WSGABG sy-vline      INTO ld_text SEPARATED BY SPACE.

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