ABAP Select data from SAP table WSCO1 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 WSCO1 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 WSCO1. 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 WSCO1 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_WSCO1 TYPE STANDARD TABLE OF WSCO1,
      WA_WSCO1 TYPE WSCO1,
      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: <WSCO1> TYPE WSCO1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WSCO1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WSCO1
  INTO TABLE IT_WSCO1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WSCO1
*  INTO TABLE @DATA(IT_WSCO12).
*--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_WSCO1 INDEX 1 INTO DATA(WA_WSCO12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WSCO1 ASSIGNING <WSCO1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WSCO1>-MATNR = 1.
<WSCO1>-VRKME = 1.
<WSCO1>-VKORG = 1.
<WSCO1>-VTWEG = 1.
<WSCO1>-WERKS = 1.

ENDLOOP.

LOOP AT IT_WSCO1 INTO WA_WSCO1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WSCO1-PLTYP, sy-vline,
  WA_WSCO1-WAERK, sy-vline,
  WA_WSCO1-DATAB, sy-vline,
  WA_WSCO1-DATBI, sy-vline,
  WA_WSCO1-KBETR, sy-vline,
  WA_WSCO1-WAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WSCO1 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_WSCO1 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_WSCO1 INTO WA_WSCO1.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WSCO1-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSCO1-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WSCO1-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSCO1-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WSCO1-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSCO1-KMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KOTAB, internal->external for field KOTABNR
CALL FUNCTION 'CONVERSION_EXIT_KOTAB_OUTPUT'
  EXPORTING
    input =                      WA_WSCO1-KOTABNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSCO1-KOTABNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AKTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WSCO1-AKTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSCO1-AKTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WSCO1-KBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSCO1-KBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FRBNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WSCO1-FRBNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSCO1-FRBNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVGRD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WSCO1-PVGRD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSCO1-PVGRD.
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_WSCO1_STR, 
MATNR TYPE STRING,
VRKME TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
WERKS TYPE STRING,
PLTYP TYPE STRING,
WAERK TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
KBETR TYPE STRING,
WAERS TYPE STRING,
WAERS_INT TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
KSCHL TYPE STRING,
KOTABNR TYPE STRING,
KALEB TYPE STRING,
SOURCE TYPE STRING,
AKTNR TYPE STRING,
VORGA TYPE STRING,
KBELN TYPE STRING,
KBELP TYPE STRING,
FRBNR TYPE STRING,
PVGRD TYPE STRING,
KONDID TYPE STRING,
MAKTX TYPE STRING,
ALV_IND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WSCO1_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_WSCO1_STR-MATNR sy-vline 
WA_WSCO1_STR-VRKME sy-vline 
WA_WSCO1_STR-VKORG sy-vline 
WA_WSCO1_STR-VTWEG sy-vline 
WA_WSCO1_STR-WERKS sy-vline 
WA_WSCO1_STR-PLTYP sy-vline 
WA_WSCO1_STR-WAERK sy-vline 
WA_WSCO1_STR-DATAB sy-vline 
WA_WSCO1_STR-DATBI sy-vline 
WA_WSCO1_STR-KBETR sy-vline 
WA_WSCO1_STR-WAERS sy-vline 
WA_WSCO1_STR-WAERS_INT sy-vline 
WA_WSCO1_STR-KPEIN sy-vline 
WA_WSCO1_STR-KMEIN sy-vline 
WA_WSCO1_STR-KSCHL sy-vline 
WA_WSCO1_STR-KOTABNR sy-vline 
WA_WSCO1_STR-KALEB sy-vline 
WA_WSCO1_STR-SOURCE sy-vline 
WA_WSCO1_STR-AKTNR sy-vline 
WA_WSCO1_STR-VORGA sy-vline 
WA_WSCO1_STR-KBELN sy-vline 
WA_WSCO1_STR-KBELP sy-vline 
WA_WSCO1_STR-FRBNR sy-vline 
WA_WSCO1_STR-PVGRD sy-vline 
WA_WSCO1_STR-KONDID sy-vline 
WA_WSCO1_STR-MAKTX sy-vline 
WA_WSCO1_STR-ALV_IND sy-vline      INTO ld_text SEPARATED BY SPACE.

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