ABAP Select data from SAP table HRPAYUS_S_TR_TAXVL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRPAYUS_S_TR_TAXVL
*  INTO TABLE @DATA(IT_HRPAYUS_S_TR_TAXVL2).
*--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_HRPAYUS_S_TR_TAXVL INDEX 1 INTO DATA(WA_HRPAYUS_S_TR_TAXVL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRPAYUS_S_TR_TAXVL>-MANDT = 1.
<HRPAYUS_S_TR_TAXVL>-TXCMP = 1.
<HRPAYUS_S_TR_TAXVL>-WKSIT = 1.
<HRPAYUS_S_TR_TAXVL>-TAXAU = 1.
<HRPAYUS_S_TR_TAXVL>-TAXTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRPAYUS_S_TR_TAXVL-PERNR, sy-vline,
  WA_HRPAYUS_S_TR_TAXVL-PAYDT, sy-vline,
  WA_HRPAYUS_S_TR_TAXVL-TBETR, sy-vline,
  WA_HRPAYUS_S_TR_TAXVL-TAXBT, sy-vline,
  WA_HRPAYUS_S_TR_TAXVL-FRMFG, sy-vline,
  WA_HRPAYUS_S_TR_TAXVL-GENDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRPAYUS_S_TR_TAXVL 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_HRPAYUS_S_TR_TAXVL 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_HRPAYUS_S_TR_TAXVL INTO WA_HRPAYUS_S_TR_TAXVL.


*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 GJAHR, internal->external for field FRYER
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_HRPAYUS_S_TR_TAXVL-FRYER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRPAYUS_S_TR_TAXVL-FRYER.
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_HRPAYUS_S_TR_TAXVL_STR, 
MANDT TYPE STRING,
TXCMP TYPE STRING,
WKSIT TYPE STRING,
TAXAU TYPE STRING,
TAXTY TYPE STRING,
PERNR TYPE STRING,
PAYDT TYPE STRING,
TBETR TYPE STRING,
TAXBT TYPE STRING,
FRMFG TYPE STRING,
GENDA TYPE STRING,
GENTM TYPE STRING,
SUSER TYPE STRING,
ABKRS TYPE STRING,
CDATE TYPE STRING,
FRMON TYPE STRING,
FRYER TYPE STRING,
TIMUN TYPE STRING,
TMUNR TYPE STRING,
NRFLG TYPE STRING,
VOIDD TYPE STRING,
ADATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRPAYUS_S_TR_TAXVL_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_HRPAYUS_S_TR_TAXVL_STR-MANDT sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-TXCMP sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-WKSIT sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-TAXAU sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-TAXTY sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-PERNR sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-PAYDT sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-TBETR sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-TAXBT sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-FRMFG sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-GENDA sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-GENTM sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-SUSER sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-ABKRS sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-CDATE sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-FRMON sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-FRYER sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-TIMUN sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-TMUNR sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-NRFLG sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-VOIDD sy-vline 
WA_HRPAYUS_S_TR_TAXVL_STR-ADATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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