ABAP Select data from SAP table IFLDLOGDIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFLDLOGDIST
*  INTO TABLE @DATA(IT_IFLDLOGDIST2).
*--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_IFLDLOGDIST INDEX 1 INTO DATA(WA_IFLDLOGDIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFLDLOGDIST>-MANDT = 1.
<IFLDLOGDIST>-PURCHASINGDOCUMENT = 1.
<IFLDLOGDIST>-PURCHASINGDOCUMENTITEM = 1.
<IFLDLOGDIST>-FLDLOGSDISTRUUID = 1.
<IFLDLOGDIST>-DELIVERYDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFLDLOGDIST-DELIVERYDOCUMENTITEM, sy-vline,
  WA_IFLDLOGDIST-MATERIALDOCUMENT, sy-vline,
  WA_IFLDLOGDIST-MATERIALDOCUMENTITEM, sy-vline,
  WA_IFLDLOGDIST-MATERIALDOCUMENTYEAR, sy-vline,
  WA_IFLDLOGDIST-FLDLOGSSUPLRITEMUUID, sy-vline,
  WA_IFLDLOGDIST-GOODSMOVEMENTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFLDLOGDIST 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_IFLDLOGDIST 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_IFLDLOGDIST INTO WA_IFLDLOGDIST.


*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 PURCHASINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFLDLOGDIST-PURCHASINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFLDLOGDIST-PURCHASINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field MATERIALDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IFLDLOGDIST-MATERIALDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFLDLOGDIST-MATERIALDOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MATERIALBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IFLDLOGDIST-MATERIALBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFLDLOGDIST-MATERIALBASEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field SERIALNUMBER
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_IFLDLOGDIST-SERIALNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFLDLOGDIST-SERIALNUMBER.
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_IFLDLOGDIST_STR, 
MANDT TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
FLDLOGSDISTRUUID TYPE STRING,
DELIVERYDOCUMENT TYPE STRING,
DELIVERYDOCUMENTITEM TYPE STRING,
MATERIALDOCUMENT TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
FLDLOGSSUPLRITEMUUID TYPE STRING,
GOODSMOVEMENTTYPE TYPE STRING,
FLDLOGSACTLDELIVEREDQUANTITY TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
STORAGELOCATION TYPE STRING,
STOCKTYPE TYPE STRING,
STORAGETYPE TYPE STRING,
STORAGEBIN TYPE STRING,
PLANT TYPE STRING,
BATCH TYPE STRING,
SHELFLIFEEXPIRATIONDATE TYPE STRING,
MANUFACTUREDATE TYPE STRING,
SERIALNUMBER TYPE STRING,
FLDLOGSISAUTOSERIALIZATION TYPE STRING,
INVENTORYVALUATIONTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFLDLOGDIST_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_IFLDLOGDIST_STR-MANDT sy-vline 
WA_IFLDLOGDIST_STR-PURCHASINGDOCUMENT sy-vline 
WA_IFLDLOGDIST_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_IFLDLOGDIST_STR-FLDLOGSDISTRUUID sy-vline 
WA_IFLDLOGDIST_STR-DELIVERYDOCUMENT sy-vline 
WA_IFLDLOGDIST_STR-DELIVERYDOCUMENTITEM sy-vline 
WA_IFLDLOGDIST_STR-MATERIALDOCUMENT sy-vline 
WA_IFLDLOGDIST_STR-MATERIALDOCUMENTITEM sy-vline 
WA_IFLDLOGDIST_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_IFLDLOGDIST_STR-FLDLOGSSUPLRITEMUUID sy-vline 
WA_IFLDLOGDIST_STR-GOODSMOVEMENTTYPE sy-vline 
WA_IFLDLOGDIST_STR-FLDLOGSACTLDELIVEREDQUANTITY sy-vline 
WA_IFLDLOGDIST_STR-MATERIALBASEUNIT sy-vline 
WA_IFLDLOGDIST_STR-STORAGELOCATION sy-vline 
WA_IFLDLOGDIST_STR-STOCKTYPE sy-vline 
WA_IFLDLOGDIST_STR-STORAGETYPE sy-vline 
WA_IFLDLOGDIST_STR-STORAGEBIN sy-vline 
WA_IFLDLOGDIST_STR-PLANT sy-vline 
WA_IFLDLOGDIST_STR-BATCH sy-vline 
WA_IFLDLOGDIST_STR-SHELFLIFEEXPIRATIONDATE sy-vline 
WA_IFLDLOGDIST_STR-MANUFACTUREDATE sy-vline 
WA_IFLDLOGDIST_STR-SERIALNUMBER sy-vline 
WA_IFLDLOGDIST_STR-FLDLOGSISAUTOSERIALIZATION sy-vline 
WA_IFLDLOGDIST_STR-INVENTORYVALUATIONTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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