ABAP Select data from SAP table OIRC_CALP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIRC_CALP
*  INTO TABLE @DATA(IT_OIRC_CALP2).
*--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_OIRC_CALP INDEX 1 INTO DATA(WA_OIRC_CALP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIRC_CALP>-OIRCCONFROM = 1.
<OIRC_CALP>-OIRCCONTO = 1.
<OIRC_CALP>-OIRCKBETR = 1.
<OIRC_CALP>-OIRCKPEIN = 1.
<OIRC_CALP>-OIRCKMEIN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIRC_CALP-OIRCKWAER, sy-vline,
  WA_OIRC_CALP-OIRCSPANE, sy-vline,
  WA_OIRC_CALP-OIRCSPABR, sy-vline,
  WA_OIRC_CALP-OIRCSPANA, sy-vline,
  WA_OIRC_CALP-OIRCSPABA, sy-vline,
  WA_OIRC_CALP-KBELN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIRC_CALP 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_OIRC_CALP 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_OIRC_CALP INTO WA_OIRC_CALP.


*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 OIRCKMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIRC_CALP-OIRCKMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIRC_CALP-OIRCKMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIRC_CALP-KBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIRC_CALP-KBELN.
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_OIRC_CALP_STR, 
OIRCCONFROM TYPE STRING,
OIRCCONTO TYPE STRING,
OIRCKBETR TYPE STRING,
OIRCKPEIN TYPE STRING,
OIRCKMEIN TYPE STRING,
OIRCKWAER TYPE STRING,
OIRCSPANE TYPE STRING,
OIRCSPABR TYPE STRING,
OIRCSPANA TYPE STRING,
OIRCSPABA TYPE STRING,
KBELN TYPE STRING,
KBELP TYPE STRING,
SUBRC TYPE STRING,
PROC_RESET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIRC_CALP_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_OIRC_CALP_STR-OIRCCONFROM sy-vline 
WA_OIRC_CALP_STR-OIRCCONTO sy-vline 
WA_OIRC_CALP_STR-OIRCKBETR sy-vline 
WA_OIRC_CALP_STR-OIRCKPEIN sy-vline 
WA_OIRC_CALP_STR-OIRCKMEIN sy-vline 
WA_OIRC_CALP_STR-OIRCKWAER sy-vline 
WA_OIRC_CALP_STR-OIRCSPANE sy-vline 
WA_OIRC_CALP_STR-OIRCSPABR sy-vline 
WA_OIRC_CALP_STR-OIRCSPANA sy-vline 
WA_OIRC_CALP_STR-OIRCSPABA sy-vline 
WA_OIRC_CALP_STR-KBELN sy-vline 
WA_OIRC_CALP_STR-KBELP sy-vline 
WA_OIRC_CALP_STR-SUBRC sy-vline 
WA_OIRC_CALP_STR-PROC_RESET sy-vline      INTO ld_text SEPARATED BY SPACE.

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