ABAP Select data from SAP table OIRC_VCDEF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIRC_VCDEF 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_VCDEF. 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_VCDEF 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_VCDEF TYPE STANDARD TABLE OF OIRC_VCDEF,
      WA_OIRC_VCDEF TYPE OIRC_VCDEF,
      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_VCDEF> TYPE OIRC_VCDEF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIRC_VCDEF
*  INTO TABLE @DATA(IT_OIRC_VCDEF2).
*--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_VCDEF INDEX 1 INTO DATA(WA_OIRC_VCDEF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIRC_VCDEF>-MANDT = 1.
<OIRC_VCDEF>-LIVAR = 1.
<OIRC_VCDEF>-KSCHL = 1.
<OIRC_VCDEF>-COLNR = 1.
<OIRC_VCDEF>-COLSZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIRC_VCDEF-SCRROUT, sy-vline,
  WA_OIRC_VCDEF-ROWROUT, sy-vline,
  WA_OIRC_VCDEF-HEADROUT, sy-vline,
  WA_OIRC_VCDEF-FOOTROUT, sy-vline,
  WA_OIRC_VCDEF-MARGINROUT, sy-vline,
  WA_OIRC_VCDEF-MARGINELEMENT1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIRC_VCDEF 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_VCDEF 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_VCDEF INTO WA_OIRC_VCDEF.


*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_OIRC_VCDEF_STR, 
MANDT TYPE STRING,
LIVAR TYPE STRING,
KSCHL TYPE STRING,
COLNR TYPE STRING,
COLSZ TYPE STRING,
SCRROUT TYPE STRING,
ROWROUT TYPE STRING,
HEADROUT TYPE STRING,
FOOTROUT TYPE STRING,
MARGINROUT TYPE STRING,
MARGINELEMENT1 TYPE STRING,
MARGINELEMENT2 TYPE STRING,
PRICECOMMSTR TYPE STRING,
PRICEPROPOSAL TYPE STRING,
PRICEPROPDOWN TYPE STRING,
CLUSTERPROP TYPE STRING,
CLUSTLIVAR TYPE STRING,
TARGET_LINE TYPE STRING,
PRLNR TYPE STRING,
PK_BADI TYPE STRING,
EM_BADI TYPE STRING,
HS_BADI TYPE STRING,
COMPLIST TYPE STRING,
SV_BADI TYPE STRING,
COPY_OW TYPE STRING,
DB_BADI TYPE STRING,
UPLSAVENEW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIRC_VCDEF_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_VCDEF_STR-MANDT sy-vline 
WA_OIRC_VCDEF_STR-LIVAR sy-vline 
WA_OIRC_VCDEF_STR-KSCHL sy-vline 
WA_OIRC_VCDEF_STR-COLNR sy-vline 
WA_OIRC_VCDEF_STR-COLSZ sy-vline 
WA_OIRC_VCDEF_STR-SCRROUT sy-vline 
WA_OIRC_VCDEF_STR-ROWROUT sy-vline 
WA_OIRC_VCDEF_STR-HEADROUT sy-vline 
WA_OIRC_VCDEF_STR-FOOTROUT sy-vline 
WA_OIRC_VCDEF_STR-MARGINROUT sy-vline 
WA_OIRC_VCDEF_STR-MARGINELEMENT1 sy-vline 
WA_OIRC_VCDEF_STR-MARGINELEMENT2 sy-vline 
WA_OIRC_VCDEF_STR-PRICECOMMSTR sy-vline 
WA_OIRC_VCDEF_STR-PRICEPROPOSAL sy-vline 
WA_OIRC_VCDEF_STR-PRICEPROPDOWN sy-vline 
WA_OIRC_VCDEF_STR-CLUSTERPROP sy-vline 
WA_OIRC_VCDEF_STR-CLUSTLIVAR sy-vline 
WA_OIRC_VCDEF_STR-TARGET_LINE sy-vline 
WA_OIRC_VCDEF_STR-PRLNR sy-vline 
WA_OIRC_VCDEF_STR-PK_BADI sy-vline 
WA_OIRC_VCDEF_STR-EM_BADI sy-vline 
WA_OIRC_VCDEF_STR-HS_BADI sy-vline 
WA_OIRC_VCDEF_STR-COMPLIST sy-vline 
WA_OIRC_VCDEF_STR-SV_BADI sy-vline 
WA_OIRC_VCDEF_STR-COPY_OW sy-vline 
WA_OIRC_VCDEF_STR-DB_BADI sy-vline 
WA_OIRC_VCDEF_STR-UPLSAVENEW sy-vline      INTO ld_text SEPARATED BY SPACE.

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