ABAP Select data from SAP table ITRANSPORDSTGANA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITRANSPORDSTGANA
*  INTO TABLE @DATA(IT_ITRANSPORDSTGANA2).
*--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_ITRANSPORDSTGANA INDEX 1 INTO DATA(WA_ITRANSPORDSTGANA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITRANSPORDSTGANA>-MANDT = 1.
<ITRANSPORDSTGANA>-TRANSPORTATIONORDERSTAGEUUID = 1.
<ITRANSPORDSTGANA>-TRANSPORTATIONORDERUUID = 1.
<ITRANSPORDSTGANA>-TRANSPORDSTAGESRCESTOPUUID = 1.
<ITRANSPORDSTGANA>-TRANSPORDSTAGEDESTSTOPUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITRANSPORDSTGANA-CARRIERUUID, sy-vline,
  WA_ITRANSPORDSTGANA-TRANSPORTATIONORDERSTAGE, sy-vline,
  WA_ITRANSPORDSTGANA-TRANSPORDSTAGEDESTSTOPCATEGORY, sy-vline,
  WA_ITRANSPORDSTGANA-TRANSPORDSTAGETYPE, sy-vline,
  WA_ITRANSPORDSTGANA-TRANSPORDSTAGECATEGORY, sy-vline,
  WA_ITRANSPORDSTGANA-TRANSPORDSTAGEPLNSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITRANSPORDSTGANA 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_ITRANSPORDSTGANA 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_ITRANSPORDSTGANA INTO WA_ITRANSPORDSTGANA.


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

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

*Conversion exit CUNIT, internal->external for field TRANSPORDSTAGEDISTANCEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ITRANSPORDSTGANA-TRANSPORDSTAGEDISTANCEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITRANSPORDSTGANA-TRANSPORDSTAGEDISTANCEUNIT.
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_ITRANSPORDSTGANA_STR, 
MANDT TYPE STRING,
TRANSPORTATIONORDERSTAGEUUID TYPE STRING,
TRANSPORTATIONORDERUUID TYPE STRING,
TRANSPORDSTAGESRCESTOPUUID TYPE STRING,
TRANSPORDSTAGEDESTSTOPUUID TYPE STRING,
CARRIERUUID TYPE STRING,
TRANSPORTATIONORDERSTAGE TYPE STRING,
TRANSPORDSTAGEDESTSTOPCATEGORY TYPE STRING,
TRANSPORDSTAGETYPE TYPE STRING,
TRANSPORDSTAGECATEGORY TYPE STRING,
TRANSPORDSTAGEPLNSTATUS TYPE STRING,
MEANSOFTRANSPORT TYPE STRING,
TRANSPORTATIONMODE TYPE STRING,
TRANSPORTATIONMODECATEGORY TYPE STRING,
TRANSPORDSTAGEAIRLINEIATACODE TYPE STRING,
TRANSPORDSTAGEAIRWAYBILL TYPE STRING,
TRANSPORDSTAGEVOYAGE TYPE STRING,
TRANSPORDSTAGEFLIGHT TYPE STRING,
TRANSPORDSTAGEVESSEL TYPE STRING,
TRANSPORDSTAGEIMOSHIP TYPE STRING,
REQUESTINGCOMPANYCODE TYPE STRING,
CARRIER TYPE STRING,
TRANSPORDSTAGESCACCODE TYPE STRING,
TRANSPORDSTAGEMAXUTILZNRATIO TYPE STRING,
TRANSPORDSTAGEUTILZNMASSRATIO TYPE STRING,
TRANSPORDSTAGEUTILZNVOLRATIO TYPE STRING,
TRANSPORDSTAGEUTILZNLENRATIO TYPE STRING,
TRANSPORDSTAGEUTILZNQTYRATIO TYPE STRING,
TRANSPORDUTILZNUNIT TYPE STRING,
TRANSPORDSTAGEDISTANCE TYPE STRING,
TRANSPORDSTAGEDISTANCEUNIT TYPE STRING,
TRANSPORDSTAGENETDURATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITRANSPORDSTGANA_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_ITRANSPORDSTGANA_STR-MANDT sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORTATIONORDERSTAGEUUID sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORTATIONORDERUUID sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGESRCESTOPUUID sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEDESTSTOPUUID sy-vline 
WA_ITRANSPORDSTGANA_STR-CARRIERUUID sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORTATIONORDERSTAGE sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEDESTSTOPCATEGORY sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGETYPE sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGECATEGORY sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEPLNSTATUS sy-vline 
WA_ITRANSPORDSTGANA_STR-MEANSOFTRANSPORT sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORTATIONMODE sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORTATIONMODECATEGORY sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEAIRLINEIATACODE sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEAIRWAYBILL sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEVOYAGE sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEFLIGHT sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEVESSEL sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEIMOSHIP sy-vline 
WA_ITRANSPORDSTGANA_STR-REQUESTINGCOMPANYCODE sy-vline 
WA_ITRANSPORDSTGANA_STR-CARRIER sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGESCACCODE sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEMAXUTILZNRATIO sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEUTILZNMASSRATIO sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEUTILZNVOLRATIO sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEUTILZNLENRATIO sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEUTILZNQTYRATIO sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDUTILZNUNIT sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEDISTANCE sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGEDISTANCEUNIT sy-vline 
WA_ITRANSPORDSTGANA_STR-TRANSPORDSTAGENETDURATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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