ABAP Select data from SAP table PFREIGHTAGR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFREIGHTAGR
*  INTO TABLE @DATA(IT_PFREIGHTAGR2).
*--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_PFREIGHTAGR INDEX 1 INTO DATA(WA_PFREIGHTAGR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PFREIGHTAGR>-MANDT = 1.
<PFREIGHTAGR>-TRANSPCALCSHEETITEMUUID = 1.
<PFREIGHTAGR>-TRANSPCHRGCALCSHEETUUID = 1.
<PFREIGHTAGR>-TRANSPCALCULATIONSHEETITEM = 1.
<PFREIGHTAGR>-TRANSPCHARGETYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFREIGHTAGR-TRANSPCALCRESOLUTIONBASE, sy-vline,
  WA_PFREIGHTAGR-TRANSPORTATIONRATEUUID, sy-vline,
  WA_PFREIGHTAGR-TRANSPCALCSHEETITEMCURRENCY, sy-vline,
  WA_PFREIGHTAGR-TRANSPCALCSHEETITEMAMOUNT, sy-vline,
  WA_PFREIGHTAGR-TRANSPCALCSHTITEMROUNDINGPRFL, sy-vline,
  WA_PFREIGHTAGR-TRANSPCALCULATIONMETHODCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFREIGHTAGR 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_PFREIGHTAGR 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_PFREIGHTAGR INTO WA_PFREIGHTAGR.


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

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

*Conversion exit ALPHA, internal->external for field TRANSPEXTERNALAGREEMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFREIGHTAGR-TRANSPEXTERNALAGREEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFREIGHTAGR-TRANSPEXTERNALAGREEMENT.
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_PFREIGHTAGR_STR, 
MANDT TYPE STRING,
TRANSPCALCSHEETITEMUUID TYPE STRING,
TRANSPCHRGCALCSHEETUUID TYPE STRING,
TRANSPCALCULATIONSHEETITEM TYPE STRING,
TRANSPCHARGETYPE TYPE STRING,
TRANSPCALCRESOLUTIONBASE TYPE STRING,
TRANSPORTATIONRATEUUID TYPE STRING,
TRANSPCALCSHEETITEMCURRENCY TYPE STRING,
TRANSPCALCSHEETITEMAMOUNT TYPE STRING,
TRANSPCALCSHTITEMROUNDINGPRFL TYPE STRING,
TRANSPCALCULATIONMETHODCODE TYPE STRING,
TRANSPCALCULATIONDATETYPE TYPE STRING,
TRANSPCALCSHEETITEMISMANDATORY TYPE STRING,
TRANSPCALCBASELINEUUID TYPE STRING,
TRANSPDIMNWEIGHTPROFILE TYPE STRING,
TRANSPORTATIONAGREEMENT TYPE STRING,
TRANSPEXTERNALAGREEMENT TYPE STRING,
TRANSPRATECLASSFCTN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFREIGHTAGR_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_PFREIGHTAGR_STR-MANDT sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCALCSHEETITEMUUID sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCHRGCALCSHEETUUID sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCALCULATIONSHEETITEM sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCHARGETYPE sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCALCRESOLUTIONBASE sy-vline 
WA_PFREIGHTAGR_STR-TRANSPORTATIONRATEUUID sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCALCSHEETITEMCURRENCY sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCALCSHEETITEMAMOUNT sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCALCSHTITEMROUNDINGPRFL sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCALCULATIONMETHODCODE sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCALCULATIONDATETYPE sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCALCSHEETITEMISMANDATORY sy-vline 
WA_PFREIGHTAGR_STR-TRANSPCALCBASELINEUUID sy-vline 
WA_PFREIGHTAGR_STR-TRANSPDIMNWEIGHTPROFILE sy-vline 
WA_PFREIGHTAGR_STR-TRANSPORTATIONAGREEMENT sy-vline 
WA_PFREIGHTAGR_STR-TRANSPEXTERNALAGREEMENT sy-vline 
WA_PFREIGHTAGR_STR-TRANSPRATECLASSFCTN sy-vline      INTO ld_text SEPARATED BY SPACE.

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