ABAP Select data from SAP table OIURV_DOC_TAXDTL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIURV_DOC_TAXDTL
*  INTO TABLE @DATA(IT_OIURV_DOC_TAXDTL2).
*--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_OIURV_DOC_TAXDTL INDEX 1 INTO DATA(WA_OIURV_DOC_TAXDTL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIURV_DOC_TAXDTL>-MANDT = 1.
<OIURV_DOC_TAXDTL>-DOC_NO = 1.
<OIURV_DOC_TAXDTL>-DOC_YEAR = 1.
<OIURV_DOC_TAXDTL>-LINE_NO = 1.
<OIURV_DOC_TAXDTL>-POS_NO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIURV_DOC_TAXDTL-TAX_TYPE, sy-vline,
  WA_OIURV_DOC_TAXDTL-VL_TAX_RAT, sy-vline,
  WA_OIURV_DOC_TAXDTL-VAL_TAX_RAT, sy-vline,
  WA_OIURV_DOC_TAXDTL-FX_MCD, sy-vline,
  WA_OIURV_DOC_TAXDTL-FX_MCD_RAT, sy-vline,
  WA_OIURV_DOC_TAXDTL-TOT_TAX_PC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIURV_DOC_TAXDTL 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_OIURV_DOC_TAXDTL 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_OIURV_DOC_TAXDTL INTO WA_OIURV_DOC_TAXDTL.


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

*Conversion exit GJAHR, internal->external for field DOC_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_OIURV_DOC_TAXDTL-DOC_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIURV_DOC_TAXDTL-DOC_YEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIURV_DOC_TAXDTL-UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIURV_DOC_TAXDTL-UOM.
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_OIURV_DOC_TAXDTL_STR, 
MANDT TYPE STRING,
DOC_NO TYPE STRING,
DOC_YEAR TYPE STRING,
LINE_NO TYPE STRING,
POS_NO TYPE STRING,
TAX_TYPE TYPE STRING,
VL_TAX_RAT TYPE STRING,
VAL_TAX_RAT TYPE STRING,
FX_MCD TYPE STRING,
FX_MCD_RAT TYPE STRING,
TOT_TAX_PC TYPE STRING,
TOT_TAX_REIMB_PC TYPE STRING,
ACTL_ST_TAX_AM TYPE STRING,
ACTL_ST_TAX_RMB TYPE STRING,
ACTL_GR_ST_TX_AM TYPE STRING,
ACTL_TXVAL TYPE STRING,
ACTL_TXVL TYPE STRING,
ENTL_ST_TAX_AM TYPE STRING,
ENTL_ST_TAX_RMB TYPE STRING,
ENTL_TXVAL TYPE STRING,
ENTL_TXVL TYPE STRING,
SETT_ST_TAX_AM TYPE STRING,
SETT_ST_TAX_RMB TYPE STRING,
SETT_TXVAL TYPE STRING,
SETT_TXVL TYPE STRING,
UOM TYPE STRING,
CURR TYPE STRING,
INCL_TAX_FREE_05 TYPE STRING,
TAX_FREE_05_VAL TYPE STRING,
TAX_FREE_05_VL TYPE STRING,
TAX_FREE_05_WLR TYPE STRING,
ST_TAX_PROC_ALLW TYPE STRING,
TAX_CLS TYPE STRING,
TIER_TAX_IND TYPE STRING,
EOR TYPE STRING,
EOR_RI_DECM TYPE STRING,
EOR_VOL TYPE STRING,
EOR_VAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIURV_DOC_TAXDTL_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_OIURV_DOC_TAXDTL_STR-MANDT sy-vline 
WA_OIURV_DOC_TAXDTL_STR-DOC_NO sy-vline 
WA_OIURV_DOC_TAXDTL_STR-DOC_YEAR sy-vline 
WA_OIURV_DOC_TAXDTL_STR-LINE_NO sy-vline 
WA_OIURV_DOC_TAXDTL_STR-POS_NO sy-vline 
WA_OIURV_DOC_TAXDTL_STR-TAX_TYPE sy-vline 
WA_OIURV_DOC_TAXDTL_STR-VL_TAX_RAT sy-vline 
WA_OIURV_DOC_TAXDTL_STR-VAL_TAX_RAT sy-vline 
WA_OIURV_DOC_TAXDTL_STR-FX_MCD sy-vline 
WA_OIURV_DOC_TAXDTL_STR-FX_MCD_RAT sy-vline 
WA_OIURV_DOC_TAXDTL_STR-TOT_TAX_PC sy-vline 
WA_OIURV_DOC_TAXDTL_STR-TOT_TAX_REIMB_PC sy-vline 
WA_OIURV_DOC_TAXDTL_STR-ACTL_ST_TAX_AM sy-vline 
WA_OIURV_DOC_TAXDTL_STR-ACTL_ST_TAX_RMB sy-vline 
WA_OIURV_DOC_TAXDTL_STR-ACTL_GR_ST_TX_AM sy-vline 
WA_OIURV_DOC_TAXDTL_STR-ACTL_TXVAL sy-vline 
WA_OIURV_DOC_TAXDTL_STR-ACTL_TXVL sy-vline 
WA_OIURV_DOC_TAXDTL_STR-ENTL_ST_TAX_AM sy-vline 
WA_OIURV_DOC_TAXDTL_STR-ENTL_ST_TAX_RMB sy-vline 
WA_OIURV_DOC_TAXDTL_STR-ENTL_TXVAL sy-vline 
WA_OIURV_DOC_TAXDTL_STR-ENTL_TXVL sy-vline 
WA_OIURV_DOC_TAXDTL_STR-SETT_ST_TAX_AM sy-vline 
WA_OIURV_DOC_TAXDTL_STR-SETT_ST_TAX_RMB sy-vline 
WA_OIURV_DOC_TAXDTL_STR-SETT_TXVAL sy-vline 
WA_OIURV_DOC_TAXDTL_STR-SETT_TXVL sy-vline 
WA_OIURV_DOC_TAXDTL_STR-UOM sy-vline 
WA_OIURV_DOC_TAXDTL_STR-CURR sy-vline 
WA_OIURV_DOC_TAXDTL_STR-INCL_TAX_FREE_05 sy-vline 
WA_OIURV_DOC_TAXDTL_STR-TAX_FREE_05_VAL sy-vline 
WA_OIURV_DOC_TAXDTL_STR-TAX_FREE_05_VL sy-vline 
WA_OIURV_DOC_TAXDTL_STR-TAX_FREE_05_WLR sy-vline 
WA_OIURV_DOC_TAXDTL_STR-ST_TAX_PROC_ALLW sy-vline 
WA_OIURV_DOC_TAXDTL_STR-TAX_CLS sy-vline 
WA_OIURV_DOC_TAXDTL_STR-TIER_TAX_IND sy-vline 
WA_OIURV_DOC_TAXDTL_STR-EOR sy-vline 
WA_OIURV_DOC_TAXDTL_STR-EOR_RI_DECM sy-vline 
WA_OIURV_DOC_TAXDTL_STR-EOR_VOL sy-vline 
WA_OIURV_DOC_TAXDTL_STR-EOR_VAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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