ABAP Select data from SAP table ITRANSPALLOCE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITRANSPALLOCE
*  INTO TABLE @DATA(IT_ITRANSPALLOCE2).
*--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_ITRANSPALLOCE INDEX 1 INTO DATA(WA_ITRANSPALLOCE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITRANSPALLOCE>-MANDT = 1.
<ITRANSPALLOCE>-TRANSPORTATIONALLOCATIONUUID = 1.
<ITRANSPALLOCE>-TRANSPORTATIONALLOCATION = 1.
<ITRANSPALLOCE>-TRANSPALLOCCATEGORY = 1.
<ITRANSPALLOCE>-TRANSPALLOCTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITRANSPALLOCE-TRADELANEUUID, sy-vline,
  WA_ITRANSPALLOCE-SOURCELOCATIONUUID, sy-vline,
  WA_ITRANSPALLOCE-DESTINATIONLOCATIONUUID, sy-vline,
  WA_ITRANSPALLOCE-CARRIERUUID, sy-vline,
  WA_ITRANSPALLOCE-CARRIER, sy-vline,
  WA_ITRANSPALLOCE-CARRIERBUSPURPOSEISCOMPLETED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITRANSPALLOCE 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_ITRANSPALLOCE 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_ITRANSPALLOCE INTO WA_ITRANSPALLOCE.


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

*Conversion exit ALPHA, internal->external for field CARRIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITRANSPALLOCE-CARRIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITRANSPALLOCE-CARRIER.
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_ITRANSPALLOCE_STR, 
MANDT TYPE STRING,
TRANSPORTATIONALLOCATIONUUID TYPE STRING,
TRANSPORTATIONALLOCATION TYPE STRING,
TRANSPALLOCCATEGORY TYPE STRING,
TRANSPALLOCTYPE TYPE STRING,
TRADELANEUUID TYPE STRING,
SOURCELOCATIONUUID TYPE STRING,
DESTINATIONLOCATIONUUID TYPE STRING,
CARRIERUUID TYPE STRING,
CARRIER TYPE STRING,
CARRIERBUSPURPOSEISCOMPLETED TYPE STRING,
CARRIERAUTHORIZATIONGROUP TYPE STRING,
TRANSPALLOCVALDTYSTARTDATETIME TYPE STRING,
TRANSPALLOCVALDTYENDDATETIME TYPE STRING,
TRANSPALLOCBUCKETTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITRANSPALLOCE_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_ITRANSPALLOCE_STR-MANDT sy-vline 
WA_ITRANSPALLOCE_STR-TRANSPORTATIONALLOCATIONUUID sy-vline 
WA_ITRANSPALLOCE_STR-TRANSPORTATIONALLOCATION sy-vline 
WA_ITRANSPALLOCE_STR-TRANSPALLOCCATEGORY sy-vline 
WA_ITRANSPALLOCE_STR-TRANSPALLOCTYPE sy-vline 
WA_ITRANSPALLOCE_STR-TRADELANEUUID sy-vline 
WA_ITRANSPALLOCE_STR-SOURCELOCATIONUUID sy-vline 
WA_ITRANSPALLOCE_STR-DESTINATIONLOCATIONUUID sy-vline 
WA_ITRANSPALLOCE_STR-CARRIERUUID sy-vline 
WA_ITRANSPALLOCE_STR-CARRIER sy-vline 
WA_ITRANSPALLOCE_STR-CARRIERBUSPURPOSEISCOMPLETED sy-vline 
WA_ITRANSPALLOCE_STR-CARRIERAUTHORIZATIONGROUP sy-vline 
WA_ITRANSPALLOCE_STR-TRANSPALLOCVALDTYSTARTDATETIME sy-vline 
WA_ITRANSPALLOCE_STR-TRANSPALLOCVALDTYENDDATETIME sy-vline 
WA_ITRANSPALLOCE_STR-TRANSPALLOCBUCKETTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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