ABAP Select data from SAP table IWILOGCOMPINFTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IWILOGCOMPINFTP
*  INTO TABLE @DATA(IT_IWILOGCOMPINFTP2).
*--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_IWILOGCOMPINFTP INDEX 1 INTO DATA(WA_IWILOGCOMPINFTP2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IWILOGCOMPINFTP-PRODNRTGVERSBOMINTERNALID, sy-vline,
  WA_IWILOGCOMPINFTP-ORIGLDGTLMOCKUPCHARCSUUID, sy-vline,
  WA_IWILOGCOMPINFTP-LOGICALCOMPONENT, sy-vline,
  WA_IWILOGCOMPINFTP-LOGICALCOMPONENTASSIGNMENT, sy-vline,
  WA_IWILOGCOMPINFTP-BOOOPBOMITEMINTERNALID, sy-vline,
  WA_IWILOGCOMPINFTP-LOGICALCOMPONENTNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IWILOGCOMPINFTP 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_IWILOGCOMPINFTP 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_IWILOGCOMPINFTP INTO WA_IWILOGCOMPINFTP.


*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 MATN1, internal->external for field BILLOFMATERIALCOMPONENT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IWILOGCOMPINFTP-BILLOFMATERIALCOMPONENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IWILOGCOMPINFTP-BILLOFMATERIALCOMPONENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BILLOFMATERIALITEMUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IWILOGCOMPINFTP-BILLOFMATERIALITEMUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IWILOGCOMPINFTP-BILLOFMATERIALITEMUNIT.
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_IWILOGCOMPINFTP_STR, 
MANDT TYPE STRING,
MFGWORKINSTRUCTION TYPE STRING,
MFGWORKINSTRUCTIONVERSCOUNTER TYPE STRING,
MFGWORKINSTRUCTIONVARIABLE TYPE STRING,
SELECTEDCONTEXTTYPE TYPE STRING,
PRODNRTGVERSBOMINTERNALID TYPE STRING,
ORIGLDGTLMOCKUPCHARCSUUID TYPE STRING,
LOGICALCOMPONENT TYPE STRING,
LOGICALCOMPONENTASSIGNMENT TYPE STRING,
BOOOPBOMITEMINTERNALID TYPE STRING,
LOGICALCOMPONENTNAME TYPE STRING,
LOGICALCOMPONENTTYPE TYPE STRING,
LOGICALCOMPONENTISREFERENCED TYPE STRING,
OBJECTDEPENDENCY TYPE STRING,
BILLOFMATERIALCOMPONENT TYPE STRING,
BILLOFMATERIALCOMPONENTNAME TYPE STRING,
BILLOFMATERIALITEMNODENUMBER TYPE STRING,
BILLOFMATERIALITEMUNIT TYPE STRING,
BILLOFMATERIALITEMQUANTITY TYPE STRING,
SERIALNUMBERPROFILE TYPE STRING,
ISBATCHMANAGEMENTREQUIRED TYPE STRING,
MATLCOMPISMARKEDFORBACKFLUSH TYPE STRING,
DGTLMOCKUPINSTCECOUNT TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
CHANGEDBY TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
MFGISITEMSELECTED TYPE STRING,
REFERENCEDESIGNATORVALUE TYPE STRING,
ISBULKMATERIALCOMPONENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IWILOGCOMPINFTP_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_IWILOGCOMPINFTP_STR-MANDT sy-vline 
WA_IWILOGCOMPINFTP_STR-MFGWORKINSTRUCTION sy-vline 
WA_IWILOGCOMPINFTP_STR-MFGWORKINSTRUCTIONVERSCOUNTER sy-vline 
WA_IWILOGCOMPINFTP_STR-MFGWORKINSTRUCTIONVARIABLE sy-vline 
WA_IWILOGCOMPINFTP_STR-SELECTEDCONTEXTTYPE sy-vline 
WA_IWILOGCOMPINFTP_STR-PRODNRTGVERSBOMINTERNALID sy-vline 
WA_IWILOGCOMPINFTP_STR-ORIGLDGTLMOCKUPCHARCSUUID sy-vline 
WA_IWILOGCOMPINFTP_STR-LOGICALCOMPONENT sy-vline 
WA_IWILOGCOMPINFTP_STR-LOGICALCOMPONENTASSIGNMENT sy-vline 
WA_IWILOGCOMPINFTP_STR-BOOOPBOMITEMINTERNALID sy-vline 
WA_IWILOGCOMPINFTP_STR-LOGICALCOMPONENTNAME sy-vline 
WA_IWILOGCOMPINFTP_STR-LOGICALCOMPONENTTYPE sy-vline 
WA_IWILOGCOMPINFTP_STR-LOGICALCOMPONENTISREFERENCED sy-vline 
WA_IWILOGCOMPINFTP_STR-OBJECTDEPENDENCY sy-vline 
WA_IWILOGCOMPINFTP_STR-BILLOFMATERIALCOMPONENT sy-vline 
WA_IWILOGCOMPINFTP_STR-BILLOFMATERIALCOMPONENTNAME sy-vline 
WA_IWILOGCOMPINFTP_STR-BILLOFMATERIALITEMNODENUMBER sy-vline 
WA_IWILOGCOMPINFTP_STR-BILLOFMATERIALITEMUNIT sy-vline 
WA_IWILOGCOMPINFTP_STR-BILLOFMATERIALITEMQUANTITY sy-vline 
WA_IWILOGCOMPINFTP_STR-SERIALNUMBERPROFILE sy-vline 
WA_IWILOGCOMPINFTP_STR-ISBATCHMANAGEMENTREQUIRED sy-vline 
WA_IWILOGCOMPINFTP_STR-MATLCOMPISMARKEDFORBACKFLUSH sy-vline 
WA_IWILOGCOMPINFTP_STR-DGTLMOCKUPINSTCECOUNT sy-vline 
WA_IWILOGCOMPINFTP_STR-CREATEDBYUSER sy-vline 
WA_IWILOGCOMPINFTP_STR-CREATIONDATETIME sy-vline 
WA_IWILOGCOMPINFTP_STR-CHANGEDBY sy-vline 
WA_IWILOGCOMPINFTP_STR-LASTCHANGEDATETIME sy-vline 
WA_IWILOGCOMPINFTP_STR-MFGISITEMSELECTED sy-vline 
WA_IWILOGCOMPINFTP_STR-REFERENCEDESIGNATORVALUE sy-vline 
WA_IWILOGCOMPINFTP_STR-ISBULKMATERIALCOMPONENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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