ABAP Select data from SAP table OCMCOLORD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OCMCOLORD
*  INTO TABLE @DATA(IT_OCMCOLORD2).
*--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_OCMCOLORD INDEX 1 INTO DATA(WA_OCMCOLORD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OCMCOLORD>-AUFNR = 1.
<OCMCOLORD>-VSNMR = 1.
<OCMCOLORD>-MAUFNR = 1.
<OCMCOLORD>-STUFE = 1.
<OCMCOLORD>-WEGXX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OCMCOLORD-COMPNUM, sy-vline,
  WA_OCMCOLORD-COMPCNT, sy-vline,
  WA_OCMCOLORD-RESULT, sy-vline,
  WA_OCMCOLORD-MOVED, sy-vline,
  WA_OCMCOLORD-LOWDIFF, sy-vline,
  WA_OCMCOLORD-CONFTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OCMCOLORD 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_OCMCOLORD 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_OCMCOLORD INTO WA_OCMCOLORD.


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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OCMCOLORD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OCMCOLORD-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_OCMCOLORD_STR, 
AUFNR TYPE STRING,
VSNMR TYPE STRING,
MAUFNR TYPE STRING,
STUFE TYPE STRING,
WEGXX TYPE STRING,
COMPNUM TYPE STRING,
COMPCNT TYPE STRING,
RESULT TYPE STRING,
MOVED TYPE STRING,
LOWDIFF TYPE STRING,
CONFTYP TYPE STRING,
STATUS TYPE STRING,
MATNR TYPE STRING,
MATTXT TYPE STRING,
INDEX TYPE STRING,
MAXCONFTYP TYPE STRING,
STTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OCMCOLORD_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_OCMCOLORD_STR-AUFNR sy-vline 
WA_OCMCOLORD_STR-VSNMR sy-vline 
WA_OCMCOLORD_STR-MAUFNR sy-vline 
WA_OCMCOLORD_STR-STUFE sy-vline 
WA_OCMCOLORD_STR-WEGXX sy-vline 
WA_OCMCOLORD_STR-COMPNUM sy-vline 
WA_OCMCOLORD_STR-COMPCNT sy-vline 
WA_OCMCOLORD_STR-RESULT sy-vline 
WA_OCMCOLORD_STR-MOVED sy-vline 
WA_OCMCOLORD_STR-LOWDIFF sy-vline 
WA_OCMCOLORD_STR-CONFTYP sy-vline 
WA_OCMCOLORD_STR-STATUS sy-vline 
WA_OCMCOLORD_STR-MATNR sy-vline 
WA_OCMCOLORD_STR-MATTXT sy-vline 
WA_OCMCOLORD_STR-INDEX sy-vline 
WA_OCMCOLORD_STR-MAXCONFTYP sy-vline 
WA_OCMCOLORD_STR-STTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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