ABAP Select data from SAP table ISCNTAXTRANSFITEMTP_DR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISCNTAXTRANSFITEMTP_DR
*  INTO TABLE @DATA(IT_ISCNTAXTRANSFITEMTP_DR2).
*--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_ISCNTAXTRANSFITEMTP_DR INDEX 1 INTO DATA(WA_ISCNTAXTRANSFITEMTP_DR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISCNTAXTRANSFITEMTP_DR>-DRAFTUUID = 1.
<ISCNTAXTRANSFITEMTP_DR>-CN_TAXTRANSFITMUUID = 1.
<ISCNTAXTRANSFITEMTP_DR>-CN_TAXINVCUUID = 1.
<ISCNTAXTRANSFITEMTP_DR>-CN_TAXDECLNSMMRYUUID = 1.
<ISCNTAXTRANSFITEMTP_DR>-CN_TAXTRANSFITMNMBR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISCNTAXTRANSFITEMTP_DR-CN_TAXTRANSFITMSTS, sy-vline,
  WA_ISCNTAXTRANSFITEMTP_DR-CN_TAXTRANSFTYPE, sy-vline,
  WA_ISCNTAXTRANSFITEMTP_DR-CN_TAXINVCCRCY, sy-vline,
  WA_ISCNTAXTRANSFITEMTP_DR-CN_TAXTRANSFNETAMTININVCCRCY, sy-vline,
  WA_ISCNTAXTRANSFITEMTP_DR-CN_TAXTRANSFCMNT, sy-vline,
  WA_ISCNTAXTRANSFITEMTP_DR-CN_TAXINVCTRANSFITMISDELETED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISCNTAXTRANSFITEMTP_DR 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_ISCNTAXTRANSFITEMTP_DR 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_ISCNTAXTRANSFITEMTP_DR INTO WA_ISCNTAXTRANSFITEMTP_DR.


*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 AC152, internal->external for field CN_TAXTRANSFNETAMTININVCCRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ISCNTAXTRANSFITEMTP_DR-CN_TAXTRANSFNETAMTININVCCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISCNTAXTRANSFITEMTP_DR-CN_TAXTRANSFNETAMTININVCCRCY.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ISCNTAXTRANSFITEMTP_DR-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISCNTAXTRANSFITEMTP_DR-FISCALYEAR.
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_ISCNTAXTRANSFITEMTP_DR_STR, 
DRAFTUUID TYPE STRING,
CN_TAXTRANSFITMUUID TYPE STRING,
CN_TAXINVCUUID TYPE STRING,
CN_TAXDECLNSMMRYUUID TYPE STRING,
CN_TAXTRANSFITMNMBR TYPE STRING,
CN_TAXTRANSFITMSTS TYPE STRING,
CN_TAXTRANSFTYPE TYPE STRING,
CN_TAXINVCCRCY TYPE STRING,
CN_TAXTRANSFNETAMTININVCCRCY TYPE STRING,
CN_TAXTRANSFCMNT TYPE STRING,
CN_TAXINVCTRANSFITMISDELETED TYPE STRING,
COMPANYCODE TYPE STRING,
CN_TAXENTITYID TYPE STRING,
CN_TAXTRANSFTGTRATIOINPERCENT TYPE STRING,
RATIOUNIT TYPE STRING,
CN_TAXDECLNYEAR TYPE STRING,
CN_TAXDECLNMONTH TYPE STRING,
CN_TAXTRANSFJRNLENTR TYPE STRING,
FISCALYEAR TYPE STRING,
CN_TAXTRANSFJRNLENTRATTRIB TYPE STRING,
CN_TAXDECLNTIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONUTCDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISCNTAXTRANSFITEMTP_DR_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_ISCNTAXTRANSFITEMTP_DR_STR-DRAFTUUID sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXTRANSFITMUUID sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXINVCUUID sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXDECLNSMMRYUUID sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXTRANSFITMNMBR sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXTRANSFITMSTS sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXTRANSFTYPE sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXINVCCRCY sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXTRANSFNETAMTININVCCRCY sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXTRANSFCMNT sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXINVCTRANSFITMISDELETED sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-COMPANYCODE sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXENTITYID sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXTRANSFTGTRATIOINPERCENT sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-RATIOUNIT sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXDECLNYEAR sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXDECLNMONTH sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXTRANSFJRNLENTR sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-FISCALYEAR sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXTRANSFJRNLENTRATTRIB sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CN_TAXDECLNTIME sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CREATEDBYUSER sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-CREATIONUTCDATETIME sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-LASTCHANGEDBYUSER sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-LASTCHANGEDATETIME sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-HASACTIVEENTITY sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISCNTAXTRANSFITEMTP_DR_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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