ABAP Select data from SAP table COCF_S_ACTIVITY_PM_EXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COCF_S_ACTIVITY_PM_EXT
*  INTO TABLE @DATA(IT_COCF_S_ACTIVITY_PM_EXT2).
*--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_COCF_S_ACTIVITY_PM_EXT INDEX 1 INTO DATA(WA_COCF_S_ACTIVITY_PM_EXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COCF_S_ACTIVITY_PM_EXT>-BUDAT = 1.
<COCF_S_ACTIVITY_PM_EXT>-ARBPL = 1.
<COCF_S_ACTIVITY_PM_EXT>-WERKS = 1.
<COCF_S_ACTIVITY_PM_EXT>-PERNR = 1.
<COCF_S_ACTIVITY_PM_EXT>-BEMOT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COCF_S_ACTIVITY_PM_EXT-PEDD, sy-vline,
  WA_COCF_S_ACTIVITY_PM_EXT-PEDZ, sy-vline,
  WA_COCF_S_ACTIVITY_PM_EXT-LTXA1, sy-vline,
  WA_COCF_S_ACTIVITY_PM_EXT-LOART, sy-vline,
  WA_COCF_S_ACTIVITY_PM_EXT-AUERU, sy-vline,
  WA_COCF_S_ACTIVITY_PM_EXT-LEKNW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COCF_S_ACTIVITY_PM_EXT 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_COCF_S_ACTIVITY_PM_EXT 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_COCF_S_ACTIVITY_PM_EXT INTO WA_COCF_S_ACTIVITY_PM_EXT.


*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 CUNIT, internal->external for field OFMNU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_COCF_S_ACTIVITY_PM_EXT-OFMNU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COCF_S_ACTIVITY_PM_EXT-OFMNU.
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_COCF_S_ACTIVITY_PM_EXT_STR, 
BUDAT TYPE STRING,
ARBPL TYPE STRING,
WERKS TYPE STRING,
PERNR TYPE STRING,
BEMOT TYPE STRING,
PEDD TYPE STRING,
PEDZ TYPE STRING,
LTXA1 TYPE STRING,
LOART TYPE STRING,
AUERU TYPE STRING,
LEKNW TYPE STRING,
OFMNW_2 TYPE STRING,
OFMNU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COCF_S_ACTIVITY_PM_EXT_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_COCF_S_ACTIVITY_PM_EXT_STR-BUDAT sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-ARBPL sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-WERKS sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-PERNR sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-BEMOT sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-PEDD sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-PEDZ sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-LTXA1 sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-LOART sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-AUERU sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-LEKNW sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-OFMNW_2 sy-vline 
WA_COCF_S_ACTIVITY_PM_EXT_STR-OFMNU sy-vline      INTO ld_text SEPARATED BY SPACE.

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