ABAP Select data from SAP table ITKTITLST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITKTITLST
*  INTO TABLE @DATA(IT_ITKTITLST2).
*--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_ITKTITLST INDEX 1 INTO DATA(WA_ITKTITLST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITKTITLST>-MANDT = 1.
<ITKTITLST>-NOMINATIONTICKETKEY = 1.
<ITKTITLST>-NOMINATIONTICKETITEM = 1.
<ITKTITLST>-NOMINATIONTICKETPURPOSE = 1.
<ITKTITLST>-NOMINATIONTICKETVERSION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITKTITLST-NOMINATIONDOC, sy-vline,
  WA_ITKTITLST-NOMINATIONDOCITEM, sy-vline,
  WA_ITKTITLST-NOMINATIONEXTNUMBER, sy-vline,
  WA_ITKTITLST-NOMINATIONSCHEDULETYPE, sy-vline,
  WA_ITKTITLST-DEMANDMATERIAL, sy-vline,
  WA_ITKTITLST-NOMINATIONTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITKTITLST 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_ITKTITLST 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_ITKTITLST INTO WA_ITKTITLST.


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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field STOPGAUGEUNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ITKTITLST-STOPGAUGEUNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITKTITLST-STOPGAUGEUNITOFMEASURE.
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_ITKTITLST_STR, 
MANDT TYPE STRING,
NOMINATIONTICKETKEY TYPE STRING,
NOMINATIONTICKETITEM TYPE STRING,
NOMINATIONTICKETPURPOSE TYPE STRING,
NOMINATIONTICKETVERSION TYPE STRING,
NOMINATIONDOC TYPE STRING,
NOMINATIONDOCITEM TYPE STRING,
NOMINATIONEXTNUMBER TYPE STRING,
NOMINATIONSCHEDULETYPE TYPE STRING,
DEMANDMATERIAL TYPE STRING,
NOMINATIONTYPE TYPE STRING,
LOCATIONNAME TYPE STRING,
LOCATIONID TYPE STRING,
TRANSPORTSYSTEM TYPE STRING,
TICKETCREATIONDATE TYPE STRING,
SCHEDULEDMATERIAL TYPE STRING,
SCHEDULEDQUANTITY TYPE STRING,
BASEUNIT TYPE STRING,
TICKETDOCUMENTPOSTINGDATE TYPE STRING,
TICKETSTATUSCOLORCODE TYPE STRING,
TICKETCREATEDBYUSER TYPE STRING,
TICKETCREATIONTIME TYPE STRING,
TICKETCHANGEDBYUSER TYPE STRING,
NOMINATIONITEMSTATUS TYPE STRING,
NOMINATIONITEMSUBSTATUS TYPE STRING,
LATESTTICKETSTATUS TYPE STRING,
TYPEOFMOVEMENT TYPE STRING,
QUANTITYISMARKED TYPE STRING,
METERISMARKED TYPE STRING,
GAUGEISMARKED TYPE STRING,
TICKETNUMBER TYPE STRING,
TICKETEXTERNALNUMBER TYPE STRING,
NOMINATIONTICKETTYPE TYPE STRING,
VEHICLEID TYPE STRING,
TICKETCHANGEDDATE TYPE STRING,
NOMINATIONEVENTDATE TYPE STRING,
STOPGAUGEUNITOFMEASURE TYPE STRING,
BULKSHIPMENTTYPE TYPE STRING,
ORIGINPLANT TYPE STRING,
ORIGINSTORAGELOCATION TYPE STRING,
DESTINATIONPLANT TYPE STRING,
DESTINATIONSTORAGELOCATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITKTITLST_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_ITKTITLST_STR-MANDT sy-vline 
WA_ITKTITLST_STR-NOMINATIONTICKETKEY sy-vline 
WA_ITKTITLST_STR-NOMINATIONTICKETITEM sy-vline 
WA_ITKTITLST_STR-NOMINATIONTICKETPURPOSE sy-vline 
WA_ITKTITLST_STR-NOMINATIONTICKETVERSION sy-vline 
WA_ITKTITLST_STR-NOMINATIONDOC sy-vline 
WA_ITKTITLST_STR-NOMINATIONDOCITEM sy-vline 
WA_ITKTITLST_STR-NOMINATIONEXTNUMBER sy-vline 
WA_ITKTITLST_STR-NOMINATIONSCHEDULETYPE sy-vline 
WA_ITKTITLST_STR-DEMANDMATERIAL sy-vline 
WA_ITKTITLST_STR-NOMINATIONTYPE sy-vline 
WA_ITKTITLST_STR-LOCATIONNAME sy-vline 
WA_ITKTITLST_STR-LOCATIONID sy-vline 
WA_ITKTITLST_STR-TRANSPORTSYSTEM sy-vline 
WA_ITKTITLST_STR-TICKETCREATIONDATE sy-vline 
WA_ITKTITLST_STR-SCHEDULEDMATERIAL sy-vline 
WA_ITKTITLST_STR-SCHEDULEDQUANTITY sy-vline 
WA_ITKTITLST_STR-BASEUNIT sy-vline 
WA_ITKTITLST_STR-TICKETDOCUMENTPOSTINGDATE sy-vline 
WA_ITKTITLST_STR-TICKETSTATUSCOLORCODE sy-vline 
WA_ITKTITLST_STR-TICKETCREATEDBYUSER sy-vline 
WA_ITKTITLST_STR-TICKETCREATIONTIME sy-vline 
WA_ITKTITLST_STR-TICKETCHANGEDBYUSER sy-vline 
WA_ITKTITLST_STR-NOMINATIONITEMSTATUS sy-vline 
WA_ITKTITLST_STR-NOMINATIONITEMSUBSTATUS sy-vline 
WA_ITKTITLST_STR-LATESTTICKETSTATUS sy-vline 
WA_ITKTITLST_STR-TYPEOFMOVEMENT sy-vline 
WA_ITKTITLST_STR-QUANTITYISMARKED sy-vline 
WA_ITKTITLST_STR-METERISMARKED sy-vline 
WA_ITKTITLST_STR-GAUGEISMARKED sy-vline 
WA_ITKTITLST_STR-TICKETNUMBER sy-vline 
WA_ITKTITLST_STR-TICKETEXTERNALNUMBER sy-vline 
WA_ITKTITLST_STR-NOMINATIONTICKETTYPE sy-vline 
WA_ITKTITLST_STR-VEHICLEID sy-vline 
WA_ITKTITLST_STR-TICKETCHANGEDDATE sy-vline 
WA_ITKTITLST_STR-NOMINATIONEVENTDATE sy-vline 
WA_ITKTITLST_STR-STOPGAUGEUNITOFMEASURE sy-vline 
WA_ITKTITLST_STR-BULKSHIPMENTTYPE sy-vline 
WA_ITKTITLST_STR-ORIGINPLANT sy-vline 
WA_ITKTITLST_STR-ORIGINSTORAGELOCATION sy-vline 
WA_ITKTITLST_STR-DESTINATIONPLANT sy-vline 
WA_ITKTITLST_STR-DESTINATIONSTORAGELOCATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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