ABAP Select data from SAP table FKKCOCC_GFN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKCOCC_GFN
*  INTO TABLE @DATA(IT_FKKCOCC_GFN2).
*--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_FKKCOCC_GFN INDEX 1 INTO DATA(WA_FKKCOCC_GFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKCOCC_GFN>-CAMASSRUNDATE = 1.
<FKKCOCC_GFN>-CAMASSRUNID = 1.
<FKKCOCC_GFN>-CAMASSRUNCOPYDATE = 1.
<FKKCOCC_GFN>-CAMASSRUNCOPYID = 1.
<FKKCOCC_GFN>-CAMASSRUNSTATUSTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKCOCC_GFN-CAMASSRUNPLANNEDSTARTDATE, sy-vline,
  WA_FKKCOCC_GFN-CAMASSRUNPLANNEDSTARTTIME, sy-vline,
  WA_FKKCOCC_GFN-CAMASSRUNISSTARTINGIMMEDIATELY, sy-vline,
  WA_FKKCOCC_GFN-CAMASSRUNPARAMETERSARECOPYTMPL, sy-vline,
  WA_FKKCOCC_GFN-CAISSUEDATE, sy-vline,
  WA_FKKCOCC_GFN-CARECONCILIATIONKEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKCOCC_GFN 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_FKKCOCC_GFN 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_FKKCOCC_GFN INTO WA_FKKCOCC_GFN.


*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_FKKCOCC_GFN_STR, 
CAMASSRUNDATE TYPE STRING,
CAMASSRUNID TYPE STRING,
CAMASSRUNCOPYDATE TYPE STRING,
CAMASSRUNCOPYID TYPE STRING,
CAMASSRUNSTATUSTEXT TYPE STRING,
CAMASSRUNPLANNEDSTARTDATE TYPE STRING,
CAMASSRUNPLANNEDSTARTTIME TYPE STRING,
CAMASSRUNISSTARTINGIMMEDIATELY TYPE STRING,
CAMASSRUNPARAMETERSARECOPYTMPL TYPE STRING,
CAISSUEDATE TYPE STRING,
CARECONCILIATIONKEY TYPE STRING,
CAMASSACTIVITYAUTHORIZATIONGRP TYPE STRING,
CAPARALLELPROCESSINGOBJECT TYPE STRING,
CAPARALLELPROCESSINGVARIANT TYPE STRING,
CAMINDATABASESELBLOCKSIZEVALUE TYPE STRING,
CAMASSACTIVITYTYPE TYPE STRING,
CAMASSACTIVITYTYPENAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKCOCC_GFN_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_FKKCOCC_GFN_STR-CAMASSRUNDATE sy-vline 
WA_FKKCOCC_GFN_STR-CAMASSRUNID sy-vline 
WA_FKKCOCC_GFN_STR-CAMASSRUNCOPYDATE sy-vline 
WA_FKKCOCC_GFN_STR-CAMASSRUNCOPYID sy-vline 
WA_FKKCOCC_GFN_STR-CAMASSRUNSTATUSTEXT sy-vline 
WA_FKKCOCC_GFN_STR-CAMASSRUNPLANNEDSTARTDATE sy-vline 
WA_FKKCOCC_GFN_STR-CAMASSRUNPLANNEDSTARTTIME sy-vline 
WA_FKKCOCC_GFN_STR-CAMASSRUNISSTARTINGIMMEDIATELY sy-vline 
WA_FKKCOCC_GFN_STR-CAMASSRUNPARAMETERSARECOPYTMPL sy-vline 
WA_FKKCOCC_GFN_STR-CAISSUEDATE sy-vline 
WA_FKKCOCC_GFN_STR-CARECONCILIATIONKEY sy-vline 
WA_FKKCOCC_GFN_STR-CAMASSACTIVITYAUTHORIZATIONGRP sy-vline 
WA_FKKCOCC_GFN_STR-CAPARALLELPROCESSINGOBJECT sy-vline 
WA_FKKCOCC_GFN_STR-CAPARALLELPROCESSINGVARIANT sy-vline 
WA_FKKCOCC_GFN_STR-CAMINDATABASESELBLOCKSIZEVALUE sy-vline 
WA_FKKCOCC_GFN_STR-CAMASSACTIVITYTYPE sy-vline 
WA_FKKCOCC_GFN_STR-CAMASSACTIVITYTYPENAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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