ABAP Select data from SAP table LOG_S_PI_DOCUMENT_FEEDER into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LOG_S_PI_DOCUMENT_FEEDER
*  INTO TABLE @DATA(IT_LOG_S_PI_DOCUMENT_FEEDER2).
*--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_LOG_S_PI_DOCUMENT_FEEDER INDEX 1 INTO DATA(WA_LOG_S_PI_DOCUMENT_FEEDER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LOG_S_PI_DOCUMENT_FEEDER>-IBLNR = 1.
<LOG_S_PI_DOCUMENT_FEEDER>-ITEMS_CNT = 1.
<LOG_S_PI_DOCUMENT_FEEDER>-COUNTED_ITEMS_CNT = 1.
<LOG_S_PI_DOCUMENT_FEEDER>-MEINS = 1.
<LOG_S_PI_DOCUMENT_FEEDER>-XZAEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LOG_S_PI_DOCUMENT_FEEDER-XDIFF, sy-vline,
  WA_LOG_S_PI_DOCUMENT_FEEDER-SOBKZ, sy-vline,
  WA_LOG_S_PI_DOCUMENT_FEEDER-SOTXT, sy-vline,
  WA_LOG_S_PI_DOCUMENT_FEEDER-BSTAR, sy-vline,
  WA_LOG_S_PI_DOCUMENT_FEEDER-BTEXT, sy-vline,
  WA_LOG_S_PI_DOCUMENT_FEEDER-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LOG_S_PI_DOCUMENT_FEEDER 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_LOG_S_PI_DOCUMENT_FEEDER 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_LOG_S_PI_DOCUMENT_FEEDER INTO WA_LOG_S_PI_DOCUMENT_FEEDER.


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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_LOG_S_PI_DOCUMENT_FEEDER-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LOG_S_PI_DOCUMENT_FEEDER-GJAHR.
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_LOG_S_PI_DOCUMENT_FEEDER_STR, 
IBLNR TYPE STRING,
ITEMS_CNT TYPE STRING,
COUNTED_ITEMS_CNT TYPE STRING,
MEINS TYPE STRING,
XZAEL TYPE STRING,
XDIFF TYPE STRING,
SOBKZ TYPE STRING,
SOTXT TYPE STRING,
BSTAR TYPE STRING,
BTEXT TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
STOCK_TR TYPE STRING,
PI_OPEN TYPE STRING,
GJAHR TYPE STRING,
BLDAT TYPE STRING,
ZLDAT TYPE STRING,
BUDAT TYPE STRING,
XBLNI TYPE STRING,
GIDAT TYPE STRING,
USNAM TYPE STRING,
SPERR TYPE STRING,
ZSTAT TYPE STRING,
DSTAT TYPE STRING,
INVNU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LOG_S_PI_DOCUMENT_FEEDER_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_LOG_S_PI_DOCUMENT_FEEDER_STR-IBLNR sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-ITEMS_CNT sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-COUNTED_ITEMS_CNT sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-MEINS sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-XZAEL sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-XDIFF sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-SOBKZ sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-SOTXT sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-BSTAR sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-BTEXT sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-WERKS sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-LGORT sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-STOCK_TR sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-PI_OPEN sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-GJAHR sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-BLDAT sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-ZLDAT sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-BUDAT sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-XBLNI sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-GIDAT sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-USNAM sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-SPERR sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-ZSTAT sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-DSTAT sy-vline 
WA_LOG_S_PI_DOCUMENT_FEEDER_STR-INVNU sy-vline      INTO ld_text SEPARATED BY SPACE.

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