ABAP Select data from SAP table IWICAMVIEWINFOD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IWICAMVIEWINFOD
*  INTO TABLE @DATA(IT_IWICAMVIEWINFOD2).
*--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_IWICAMVIEWINFOD INDEX 1 INTO DATA(WA_IWICAMVIEWINFOD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IWICAMVIEWINFOD>-MANDT = 1.
<IWICAMVIEWINFOD>-DRAFTUUID = 1.
<IWICAMVIEWINFOD>-PARENTDRAFTUUID = 1.
<IWICAMVIEWINFOD>-MFGWORKINSTRUCTION = 1.
<IWICAMVIEWINFOD>-MFGWORKINSTRUCTIONVERSCOUNTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IWICAMVIEWINFOD-MFGWORKINSTRUCTIONVARIABLE, sy-vline,
  WA_IWICAMVIEWINFOD-SELECTEDCONTEXTTYPE, sy-vline,
  WA_IWICAMVIEWINFOD-PRODMFGINFOCAMERAINTERNALID, sy-vline,
  WA_IWICAMVIEWINFOD-PRODMFGINFOCAMERANAME, sy-vline,
  WA_IWICAMVIEWINFOD-PRODMFGINFOCAMERACOORDSVALUE, sy-vline,
  WA_IWICAMVIEWINFOD-HASACTIVEENTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IWICAMVIEWINFOD 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_IWICAMVIEWINFOD 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_IWICAMVIEWINFOD INTO WA_IWICAMVIEWINFOD.


*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_IWICAMVIEWINFOD_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
PARENTDRAFTUUID TYPE STRING,
MFGWORKINSTRUCTION TYPE STRING,
MFGWORKINSTRUCTIONVERSCOUNTER TYPE STRING,
MFGWORKINSTRUCTIONVARIABLE TYPE STRING,
SELECTEDCONTEXTTYPE TYPE STRING,
PRODMFGINFOCAMERAINTERNALID TYPE STRING,
PRODMFGINFOCAMERANAME TYPE STRING,
PRODMFGINFOCAMERACOORDSVALUE TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IWICAMVIEWINFOD_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_IWICAMVIEWINFOD_STR-MANDT sy-vline 
WA_IWICAMVIEWINFOD_STR-DRAFTUUID sy-vline 
WA_IWICAMVIEWINFOD_STR-PARENTDRAFTUUID sy-vline 
WA_IWICAMVIEWINFOD_STR-MFGWORKINSTRUCTION sy-vline 
WA_IWICAMVIEWINFOD_STR-MFGWORKINSTRUCTIONVERSCOUNTER sy-vline 
WA_IWICAMVIEWINFOD_STR-MFGWORKINSTRUCTIONVARIABLE sy-vline 
WA_IWICAMVIEWINFOD_STR-SELECTEDCONTEXTTYPE sy-vline 
WA_IWICAMVIEWINFOD_STR-PRODMFGINFOCAMERAINTERNALID sy-vline 
WA_IWICAMVIEWINFOD_STR-PRODMFGINFOCAMERANAME sy-vline 
WA_IWICAMVIEWINFOD_STR-PRODMFGINFOCAMERACOORDSVALUE sy-vline 
WA_IWICAMVIEWINFOD_STR-HASACTIVEENTITY sy-vline 
WA_IWICAMVIEWINFOD_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_IWICAMVIEWINFOD_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_IWICAMVIEWINFOD_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_IWICAMVIEWINFOD_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_IWICAMVIEWINFOD_STR-DRAFTENTITYOPERATIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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