ABAP Select data from SAP table COCM_PARAMS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COCM_PARAMS
*  INTO TABLE @DATA(IT_COCM_PARAMS2).
*--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_COCM_PARAMS INDEX 1 INTO DATA(WA_COCM_PARAMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COCM_PARAMS>-SDORD = 1.
<COCM_PARAMS>-CHGNR = 1.
<COCM_PARAMS>-PPORD = 1.
<COCM_PARAMS>-PLORD = 1.
<COCM_PARAMS>-ORDERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COCM_PARAMS-LIST_VIEW, sy-vline,
  WA_COCM_PARAMS-PROV_SEARCH, sy-vline,
  WA_COCM_PARAMS-PROV_NEW_SEARCH, sy-vline,
  WA_COCM_PARAMS-AUTH_DELETE, sy-vline,
  WA_COCM_PARAMS-CLOSED_DELETE, sy-vline,
  WA_COCM_PARAMS-VIEW_NORES, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COCM_PARAMS 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_COCM_PARAMS 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_COCM_PARAMS INTO WA_COCM_PARAMS.


*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_COCM_PARAMS_STR, 
SDORD TYPE STRING,
CHGNR TYPE STRING,
PPORD TYPE STRING,
PLORD TYPE STRING,
ORDERS TYPE STRING,
LIST_VIEW TYPE STRING,
PROV_SEARCH TYPE STRING,
PROV_NEW_SEARCH TYPE STRING,
AUTH_DELETE TYPE STRING,
CLOSED_DELETE TYPE STRING,
VIEW_NORES TYPE STRING,
VIEW_CLOSED TYPE STRING,
VIEW_WO_PROV TYPE STRING,
VIEW_WO_REF_PROV TYPE STRING,
VIEW_SEARCHED TYPE STRING,
VIEW_WO_SEARCH TYPE STRING,
PPORD_SEARCH TYPE STRING,
PLORD_SEARCH TYPE STRING,
ORDER_SEARCH TYPE STRING,
VIEW_ALL TYPE STRING,
VIEW_UNPROC TYPE STRING,
VIEW_VERS TYPE STRING,
VIEW_COMP TYPE STRING,
VIEW_CHECK TYPE STRING,
VIEW_TRANS TYPE STRING,
FUNC_10 TYPE STRING,
FUNC_20 TYPE STRING,
FUNC_30 TYPE STRING,
FUNC_40 TYPE STRING,
FUNC_50 TYPE STRING,
ACTION_SIM TYPE STRING,
ACTION_COMP TYPE STRING,
ACTION_CHECK TYPE STRING,
ACTION_UPD TYPE STRING,
CDATE_V TYPE STRING,
CDATE_B TYPE STRING,
PERIOD_TYPE TYPE STRING,
PERIOD TYPE STRING,
HORIZ TYPE STRING,
SELMINUS TYPE STRING,
SELPLUS TYPE STRING,
COLORD_COMPL TYPE STRING,
CHACC TYPE STRING,
CHREJ TYPE STRING,
COMPL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COCM_PARAMS_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_COCM_PARAMS_STR-SDORD sy-vline 
WA_COCM_PARAMS_STR-CHGNR sy-vline 
WA_COCM_PARAMS_STR-PPORD sy-vline 
WA_COCM_PARAMS_STR-PLORD sy-vline 
WA_COCM_PARAMS_STR-ORDERS sy-vline 
WA_COCM_PARAMS_STR-LIST_VIEW sy-vline 
WA_COCM_PARAMS_STR-PROV_SEARCH sy-vline 
WA_COCM_PARAMS_STR-PROV_NEW_SEARCH sy-vline 
WA_COCM_PARAMS_STR-AUTH_DELETE sy-vline 
WA_COCM_PARAMS_STR-CLOSED_DELETE sy-vline 
WA_COCM_PARAMS_STR-VIEW_NORES sy-vline 
WA_COCM_PARAMS_STR-VIEW_CLOSED sy-vline 
WA_COCM_PARAMS_STR-VIEW_WO_PROV sy-vline 
WA_COCM_PARAMS_STR-VIEW_WO_REF_PROV sy-vline 
WA_COCM_PARAMS_STR-VIEW_SEARCHED sy-vline 
WA_COCM_PARAMS_STR-VIEW_WO_SEARCH sy-vline 
WA_COCM_PARAMS_STR-PPORD_SEARCH sy-vline 
WA_COCM_PARAMS_STR-PLORD_SEARCH sy-vline 
WA_COCM_PARAMS_STR-ORDER_SEARCH sy-vline 
WA_COCM_PARAMS_STR-VIEW_ALL sy-vline 
WA_COCM_PARAMS_STR-VIEW_UNPROC sy-vline 
WA_COCM_PARAMS_STR-VIEW_VERS sy-vline 
WA_COCM_PARAMS_STR-VIEW_COMP sy-vline 
WA_COCM_PARAMS_STR-VIEW_CHECK sy-vline 
WA_COCM_PARAMS_STR-VIEW_TRANS sy-vline 
WA_COCM_PARAMS_STR-FUNC_10 sy-vline 
WA_COCM_PARAMS_STR-FUNC_20 sy-vline 
WA_COCM_PARAMS_STR-FUNC_30 sy-vline 
WA_COCM_PARAMS_STR-FUNC_40 sy-vline 
WA_COCM_PARAMS_STR-FUNC_50 sy-vline 
WA_COCM_PARAMS_STR-ACTION_SIM sy-vline 
WA_COCM_PARAMS_STR-ACTION_COMP sy-vline 
WA_COCM_PARAMS_STR-ACTION_CHECK sy-vline 
WA_COCM_PARAMS_STR-ACTION_UPD sy-vline 
WA_COCM_PARAMS_STR-CDATE_V sy-vline 
WA_COCM_PARAMS_STR-CDATE_B sy-vline 
WA_COCM_PARAMS_STR-PERIOD_TYPE sy-vline 
WA_COCM_PARAMS_STR-PERIOD sy-vline 
WA_COCM_PARAMS_STR-HORIZ sy-vline 
WA_COCM_PARAMS_STR-SELMINUS sy-vline 
WA_COCM_PARAMS_STR-SELPLUS sy-vline 
WA_COCM_PARAMS_STR-COLORD_COMPL sy-vline 
WA_COCM_PARAMS_STR-CHACC sy-vline 
WA_COCM_PARAMS_STR-CHREJ sy-vline 
WA_COCM_PARAMS_STR-COMPL sy-vline      INTO ld_text SEPARATED BY SPACE.

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