ABAP Select data from SAP table IMFGWIVARINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMFGWIVARINFO
*  INTO TABLE @DATA(IT_IMFGWIVARINFO2).
*--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_IMFGWIVARINFO INDEX 1 INTO DATA(WA_IMFGWIVARINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMFGWIVARINFO>-MANDT = 1.
<IMFGWIVARINFO>-MFGWORKINSTRUCTION = 1.
<IMFGWIVARINFO>-MFGWORKINSTRUCTIONVERSCOUNTER = 1.
<IMFGWIVARINFO>-MFGWORKINSTRUCTIONVARIABLE = 1.
<IMFGWIVARINFO>-MFGWORKINSTRUCTIONPLACEHOLDER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMFGWIVARINFO-SELECTEDCONTEXTTYPE, sy-vline,
  WA_IMFGWIVARINFO-MFGWRKINSTRNPLCHLDRCOLLINTID, sy-vline,
  WA_IMFGWIVARINFO-SELECTEDCONTEXTNAME, sy-vline,
  WA_IMFGWIVARINFO-LANGUAGE, sy-vline,
  WA_IMFGWIVARINFO-MFGWRKINSTRNPLACEHOLDERISREF, sy-vline,
  WA_IMFGWIVARINFO-MFGWRKINSTRNPLACEHOLDERISLINK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMFGWIVARINFO 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_IMFGWIVARINFO 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_IMFGWIVARINFO INTO WA_IMFGWIVARINFO.


*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 ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_IMFGWIVARINFO-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMFGWIVARINFO-LANGUAGE.
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_IMFGWIVARINFO_STR, 
MANDT TYPE STRING,
MFGWORKINSTRUCTION TYPE STRING,
MFGWORKINSTRUCTIONVERSCOUNTER TYPE STRING,
MFGWORKINSTRUCTIONVARIABLE TYPE STRING,
MFGWORKINSTRUCTIONPLACEHOLDER TYPE STRING,
SELECTEDCONTEXTTYPE TYPE STRING,
MFGWRKINSTRNPLCHLDRCOLLINTID TYPE STRING,
SELECTEDCONTEXTNAME TYPE STRING,
LANGUAGE TYPE STRING,
MFGWRKINSTRNPLACEHOLDERISREF TYPE STRING,
MFGWRKINSTRNPLACEHOLDERISLINK TYPE STRING,
WORKINSTRNPLACEHOLDERISINPTFLD TYPE STRING,
PRODNRTGVERSBOMINTERNALID TYPE STRING,
BOOOPBOMITEMINTERNALID TYPE STRING,
ORIGLDGTLMOCKUPCHARCSUUID TYPE STRING,
DGTLMOCKUPCHARCSUUID TYPE STRING,
LOGICALCOMPONENT TYPE STRING,
INSPECTIONCHARACTERISTICNMBR TYPE STRING,
BOOCHARCGROUP TYPE STRING,
PRODNRSCETOOLCOUNTER TYPE STRING,
PRODMFGINFOCAMERAINTERNALID TYPE STRING,
PRODMFGINFOITEMVALUEUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMFGWIVARINFO_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_IMFGWIVARINFO_STR-MANDT sy-vline 
WA_IMFGWIVARINFO_STR-MFGWORKINSTRUCTION sy-vline 
WA_IMFGWIVARINFO_STR-MFGWORKINSTRUCTIONVERSCOUNTER sy-vline 
WA_IMFGWIVARINFO_STR-MFGWORKINSTRUCTIONVARIABLE sy-vline 
WA_IMFGWIVARINFO_STR-MFGWORKINSTRUCTIONPLACEHOLDER sy-vline 
WA_IMFGWIVARINFO_STR-SELECTEDCONTEXTTYPE sy-vline 
WA_IMFGWIVARINFO_STR-MFGWRKINSTRNPLCHLDRCOLLINTID sy-vline 
WA_IMFGWIVARINFO_STR-SELECTEDCONTEXTNAME sy-vline 
WA_IMFGWIVARINFO_STR-LANGUAGE sy-vline 
WA_IMFGWIVARINFO_STR-MFGWRKINSTRNPLACEHOLDERISREF sy-vline 
WA_IMFGWIVARINFO_STR-MFGWRKINSTRNPLACEHOLDERISLINK sy-vline 
WA_IMFGWIVARINFO_STR-WORKINSTRNPLACEHOLDERISINPTFLD sy-vline 
WA_IMFGWIVARINFO_STR-PRODNRTGVERSBOMINTERNALID sy-vline 
WA_IMFGWIVARINFO_STR-BOOOPBOMITEMINTERNALID sy-vline 
WA_IMFGWIVARINFO_STR-ORIGLDGTLMOCKUPCHARCSUUID sy-vline 
WA_IMFGWIVARINFO_STR-DGTLMOCKUPCHARCSUUID sy-vline 
WA_IMFGWIVARINFO_STR-LOGICALCOMPONENT sy-vline 
WA_IMFGWIVARINFO_STR-INSPECTIONCHARACTERISTICNMBR sy-vline 
WA_IMFGWIVARINFO_STR-BOOCHARCGROUP sy-vline 
WA_IMFGWIVARINFO_STR-PRODNRSCETOOLCOUNTER sy-vline 
WA_IMFGWIVARINFO_STR-PRODMFGINFOCAMERAINTERNALID sy-vline 
WA_IMFGWIVARINFO_STR-PRODMFGINFOITEMVALUEUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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