ABAP Select data from SAP table PSDEXIDTYMGDFN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSDEXIDTYMGDFN
*  INTO TABLE @DATA(IT_PSDEXIDTYMGDFN2).
*--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_PSDEXIDTYMGDFN INDEX 1 INTO DATA(WA_PSDEXIDTYMGDFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSDEXIDTYMGDFN>-MANDT = 1.
<PSDEXIDTYMGDFN>-BILLINGDOCUMENT = 1.
<PSDEXIDTYMGDFN>-BILLINGDOCUMENTITEM = 1.
<PSDEXIDTYMGDFN>-AEDAMOUNT = 1.
<PSDEXIDTYMGDFN>-BEDAMOUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSDEXIDTYMGDFN-SEDAMOUNT, sy-vline,
  WA_PSDEXIDTYMGDFN-NCCDAMOUNT, sy-vline,
  WA_PSDEXIDTYMGDFN-CESSAMOUNT, sy-vline,
  WA_PSDEXIDTYMGDFN-ECSAMOUNT, sy-vline,
  WA_PSDEXIDTYMGDFN-ADDITIONALTAX1VALUE, sy-vline,
  WA_PSDEXIDTYMGDFN-ADDITIONALTAX2VALUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSDEXIDTYMGDFN 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_PSDEXIDTYMGDFN 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_PSDEXIDTYMGDFN INTO WA_PSDEXIDTYMGDFN.


*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 BILLINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PSDEXIDTYMGDFN-BILLINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSDEXIDTYMGDFN-BILLINGDOCUMENT.
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_PSDEXIDTYMGDFN_STR, 
MANDT TYPE STRING,
BILLINGDOCUMENT TYPE STRING,
BILLINGDOCUMENTITEM TYPE STRING,
AEDAMOUNT TYPE STRING,
BEDAMOUNT TYPE STRING,
SEDAMOUNT TYPE STRING,
NCCDAMOUNT TYPE STRING,
CESSAMOUNT TYPE STRING,
ECSAMOUNT TYPE STRING,
ADDITIONALTAX1VALUE TYPE STRING,
ADDITIONALTAX2VALUE TYPE STRING,
ADDITIONALTAX3VALUE TYPE STRING,
AEDRATE TYPE STRING,
BEDRATE TYPE STRING,
SEDRATE TYPE STRING,
NCCDRATE TYPE STRING,
CESSRATE TYPE STRING,
ECSRATE TYPE STRING,
ADDITIONALTAX1RATE TYPE STRING,
ADDITIONALTAX2RATE TYPE STRING,
ADDITIONALTAX3RATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSDEXIDTYMGDFN_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_PSDEXIDTYMGDFN_STR-MANDT sy-vline 
WA_PSDEXIDTYMGDFN_STR-BILLINGDOCUMENT sy-vline 
WA_PSDEXIDTYMGDFN_STR-BILLINGDOCUMENTITEM sy-vline 
WA_PSDEXIDTYMGDFN_STR-AEDAMOUNT sy-vline 
WA_PSDEXIDTYMGDFN_STR-BEDAMOUNT sy-vline 
WA_PSDEXIDTYMGDFN_STR-SEDAMOUNT sy-vline 
WA_PSDEXIDTYMGDFN_STR-NCCDAMOUNT sy-vline 
WA_PSDEXIDTYMGDFN_STR-CESSAMOUNT sy-vline 
WA_PSDEXIDTYMGDFN_STR-ECSAMOUNT sy-vline 
WA_PSDEXIDTYMGDFN_STR-ADDITIONALTAX1VALUE sy-vline 
WA_PSDEXIDTYMGDFN_STR-ADDITIONALTAX2VALUE sy-vline 
WA_PSDEXIDTYMGDFN_STR-ADDITIONALTAX3VALUE sy-vline 
WA_PSDEXIDTYMGDFN_STR-AEDRATE sy-vline 
WA_PSDEXIDTYMGDFN_STR-BEDRATE sy-vline 
WA_PSDEXIDTYMGDFN_STR-SEDRATE sy-vline 
WA_PSDEXIDTYMGDFN_STR-NCCDRATE sy-vline 
WA_PSDEXIDTYMGDFN_STR-CESSRATE sy-vline 
WA_PSDEXIDTYMGDFN_STR-ECSRATE sy-vline 
WA_PSDEXIDTYMGDFN_STR-ADDITIONALTAX1RATE sy-vline 
WA_PSDEXIDTYMGDFN_STR-ADDITIONALTAX2RATE sy-vline 
WA_PSDEXIDTYMGDFN_STR-ADDITIONALTAX3RATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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