ABAP Select data from SAP table IFLDLVITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFLDLVITM
*  INTO TABLE @DATA(IT_IFLDLVITM2).
*--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_IFLDLVITM INDEX 1 INTO DATA(WA_IFLDLVITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFLDLVITM>-MANDT = 1.
<IFLDLVITM>-DELIVERYDOCUMENT = 1.
<IFLDLVITM>-DELIVERYDOCUMENTITEM = 1.
<IFLDLVITM>-REFERENCESDDOCUMENT = 1.
<IFLDLVITM>-REFERENCESDDOCUMENTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFLDLVITM-PURCHASINGDOCUMENTITEM, sy-vline,
  WA_IFLDLVITM-STORAGELOCATION, sy-vline,
  WA_IFLDLVITM-ACTUALDELIVERYQUANTITY, sy-vline,
  WA_IFLDLVITM-DELIVERYQUANTITYUNIT, sy-vline,
  WA_IFLDLVITM-GOODSMOVEMENTSTATUS, sy-vline,
  WA_IFLDLVITM-GOODSMOVEMENTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFLDLVITM 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_IFLDLVITM 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_IFLDLVITM INTO WA_IFLDLVITM.


*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 ALPHA, internal->external for field DELIVERYDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFLDLVITM-DELIVERYDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFLDLVITM-DELIVERYDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFERENCESDDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFLDLVITM-REFERENCESDDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFLDLVITM-REFERENCESDDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DELIVERYQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IFLDLVITM-DELIVERYQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFLDLVITM-DELIVERYQUANTITYUNIT.
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_IFLDLVITM_STR, 
MANDT TYPE STRING,
DELIVERYDOCUMENT TYPE STRING,
DELIVERYDOCUMENTITEM TYPE STRING,
REFERENCESDDOCUMENT TYPE STRING,
REFERENCESDDOCUMENTITEM TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
STORAGELOCATION TYPE STRING,
ACTUALDELIVERYQUANTITY TYPE STRING,
DELIVERYQUANTITYUNIT TYPE STRING,
GOODSMOVEMENTSTATUS TYPE STRING,
GOODSMOVEMENTTYPE TYPE STRING,
INVENTORYVALUATIONTYPE TYPE STRING,
FLDLOGSSTATUS TYPE STRING,
BATCH TYPE STRING,
DELIVERYDATE TYPE STRING,
SDDOCUMENTCATEGORY TYPE STRING,
DISTRSTATUSBYDECENTRALIZEDWRHS TYPE STRING,
DELIVERYDOCUMENTBYSUPPLIER TYPE STRING,
LOADINGPOINT TYPE STRING,
UNLOADINGPOINTNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFLDLVITM_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_IFLDLVITM_STR-MANDT sy-vline 
WA_IFLDLVITM_STR-DELIVERYDOCUMENT sy-vline 
WA_IFLDLVITM_STR-DELIVERYDOCUMENTITEM sy-vline 
WA_IFLDLVITM_STR-REFERENCESDDOCUMENT sy-vline 
WA_IFLDLVITM_STR-REFERENCESDDOCUMENTITEM sy-vline 
WA_IFLDLVITM_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_IFLDLVITM_STR-STORAGELOCATION sy-vline 
WA_IFLDLVITM_STR-ACTUALDELIVERYQUANTITY sy-vline 
WA_IFLDLVITM_STR-DELIVERYQUANTITYUNIT sy-vline 
WA_IFLDLVITM_STR-GOODSMOVEMENTSTATUS sy-vline 
WA_IFLDLVITM_STR-GOODSMOVEMENTTYPE sy-vline 
WA_IFLDLVITM_STR-INVENTORYVALUATIONTYPE sy-vline 
WA_IFLDLVITM_STR-FLDLOGSSTATUS sy-vline 
WA_IFLDLVITM_STR-BATCH sy-vline 
WA_IFLDLVITM_STR-DELIVERYDATE sy-vline 
WA_IFLDLVITM_STR-SDDOCUMENTCATEGORY sy-vline 
WA_IFLDLVITM_STR-DISTRSTATUSBYDECENTRALIZEDWRHS sy-vline 
WA_IFLDLVITM_STR-DELIVERYDOCUMENTBYSUPPLIER sy-vline 
WA_IFLDLVITM_STR-LOADINGPOINT sy-vline 
WA_IFLDLVITM_STR-UNLOADINGPOINTNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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