ABAP Select data from SAP table DFK_JC_CNTR_PROD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFK_JC_CNTR_PROD
*  INTO TABLE @DATA(IT_DFK_JC_CNTR_PROD2).
*--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_DFK_JC_CNTR_PROD INDEX 1 INTO DATA(WA_DFK_JC_CNTR_PROD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFK_JC_CNTR_PROD>-MANDT = 1.
<DFK_JC_CNTR_PROD>-RUNID = 1.
<DFK_JC_CNTR_PROD>-AKTYP = 1.
<DFK_JC_CNTR_PROD>-JTYPE = 1.
<DFK_JC_CNTR_PROD>-LAUFD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFK_JC_CNTR_PROD-LAUFI, sy-vline,
  WA_DFK_JC_CNTR_PROD-JOBNAME, sy-vline,
  WA_DFK_JC_CNTR_PROD-COPYD, sy-vline,
  WA_DFK_JC_CNTR_PROD-COPYI, sy-vline,
  WA_DFK_JC_CNTR_PROD-FLAGS, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_DFK_JC_CNTR_PROD 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_DFK_JC_CNTR_PROD 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_DFK_JC_CNTR_PROD INTO WA_DFK_JC_CNTR_PROD.


*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_DFK_JC_CNTR_PROD_STR, 
MANDT TYPE STRING,
RUNID TYPE STRING,
AKTYP TYPE STRING,
JTYPE TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
JOBNAME TYPE STRING,
COPYD TYPE STRING,
COPYI TYPE STRING,
FLAGS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFK_JC_CNTR_PROD_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_DFK_JC_CNTR_PROD_STR-MANDT sy-vline 
WA_DFK_JC_CNTR_PROD_STR-RUNID sy-vline 
WA_DFK_JC_CNTR_PROD_STR-AKTYP sy-vline 
WA_DFK_JC_CNTR_PROD_STR-JTYPE sy-vline 
WA_DFK_JC_CNTR_PROD_STR-LAUFD sy-vline 
WA_DFK_JC_CNTR_PROD_STR-LAUFI sy-vline 
WA_DFK_JC_CNTR_PROD_STR-JOBNAME sy-vline 
WA_DFK_JC_CNTR_PROD_STR-COPYD sy-vline 
WA_DFK_JC_CNTR_PROD_STR-COPYI sy-vline 
WA_DFK_JC_CNTR_PROD_STR-FLAGS sy-vline      INTO ld_text SEPARATED BY SPACE.

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