ABAP Select data from SAP table OIJ09_COST_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIJ09_COST_DATA 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 OIJ09_COST_DATA. 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 OIJ09_COST_DATA 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_OIJ09_COST_DATA TYPE STANDARD TABLE OF OIJ09_COST_DATA,
      WA_OIJ09_COST_DATA TYPE OIJ09_COST_DATA,
      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: <OIJ09_COST_DATA> TYPE OIJ09_COST_DATA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OIJ09_COST_DATA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OIJ09_COST_DATA
  INTO TABLE IT_OIJ09_COST_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJ09_COST_DATA
*  INTO TABLE @DATA(IT_OIJ09_COST_DATA2).
*--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_OIJ09_COST_DATA INDEX 1 INTO DATA(WA_OIJ09_COST_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIJ09_COST_DATA ASSIGNING <OIJ09_COST_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJ09_COST_DATA>-MANDT = 1.
<OIJ09_COST_DATA>-REFDOCNR = 1.
<OIJ09_COST_DATA>-ROUTE = 1.
<OIJ09_COST_DATA>-FKPTY = 1.
<OIJ09_COST_DATA>-BEZEI = 1.

ENDLOOP.

LOOP AT IT_OIJ09_COST_DATA INTO WA_OIJ09_COST_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJ09_COST_DATA-KOSTY, sy-vline,
  WA_OIJ09_COST_DATA-USERID, sy-vline,
  WA_OIJ09_COST_DATA-DDTEXT, sy-vline,
  WA_OIJ09_COST_DATA-KNOTA, sy-vline,
  WA_OIJ09_COST_DATA-KNOTZ, sy-vline,
  WA_OIJ09_COST_DATA-NETWR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJ09_COST_DATA 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_OIJ09_COST_DATA 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_OIJ09_COST_DATA INTO WA_OIJ09_COST_DATA.


*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 REFDOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJ09_COST_DATA-REFDOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ09_COST_DATA-REFDOCNR.
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_OIJ09_COST_DATA_STR, 
MANDT TYPE STRING,
REFDOCNR TYPE STRING,
ROUTE TYPE STRING,
FKPTY TYPE STRING,
BEZEI TYPE STRING,
KOSTY TYPE STRING,
USERID TYPE STRING,
DDTEXT TYPE STRING,
KNOTA TYPE STRING,
KNOTZ TYPE STRING,
NETWR TYPE STRING,
CURRENCY TYPE STRING,
TAX TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJ09_COST_DATA_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_OIJ09_COST_DATA_STR-MANDT sy-vline 
WA_OIJ09_COST_DATA_STR-REFDOCNR sy-vline 
WA_OIJ09_COST_DATA_STR-ROUTE sy-vline 
WA_OIJ09_COST_DATA_STR-FKPTY sy-vline 
WA_OIJ09_COST_DATA_STR-BEZEI sy-vline 
WA_OIJ09_COST_DATA_STR-KOSTY sy-vline 
WA_OIJ09_COST_DATA_STR-USERID sy-vline 
WA_OIJ09_COST_DATA_STR-DDTEXT sy-vline 
WA_OIJ09_COST_DATA_STR-KNOTA sy-vline 
WA_OIJ09_COST_DATA_STR-KNOTZ sy-vline 
WA_OIJ09_COST_DATA_STR-NETWR sy-vline 
WA_OIJ09_COST_DATA_STR-CURRENCY sy-vline 
WA_OIJ09_COST_DATA_STR-TAX sy-vline 
WA_OIJ09_COST_DATA_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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