ABAP Select data from SAP table PIN_SS_TAX_NR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIN_SS_TAX_NR
*  INTO TABLE @DATA(IT_PIN_SS_TAX_NR2).
*--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_PIN_SS_TAX_NR INDEX 1 INTO DATA(WA_PIN_SS_TAX_NR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIN_SS_TAX_NR>-GRTOT = 1.
<PIN_SS_TAX_NR>-GRTIN = 1.
<PIN_SS_TAX_NR>-TOTIN = 1.
<PIN_SS_TAX_NR>-ANTAX = 1.
<PIN_SS_TAX_NR>-SRCHG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIN_SS_TAX_NR-MEDIC, sy-vline,
  WA_PIN_SS_TAX_NR-TOTTY, sy-vline,
  WA_PIN_SS_TAX_NR-TOTPE, sy-vline,
  WA_PIN_SS_TAX_NR-NPSER, sy-vline,
  WA_PIN_SS_TAX_NR-EXEM, sy-vline,
  WA_PIN_SS_TAX_NR-AG4AB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIN_SS_TAX_NR 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_PIN_SS_TAX_NR 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_PIN_SS_TAX_NR INTO WA_PIN_SS_TAX_NR.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PIN_SS_TAX_NR_STR, 
GRTOT TYPE STRING,
GRTIN TYPE STRING,
TOTIN TYPE STRING,
ANTAX TYPE STRING,
SRCHG TYPE STRING,
MEDIC TYPE STRING,
TOTTY TYPE STRING,
TOTPE TYPE STRING,
NPSER TYPE STRING,
EXEM TYPE STRING,
AG4AB TYPE STRING,
IFHPAMT TYPE STRING,
TOTOS TYPE STRING,
SUMVI TYPE STRING,
TXCRT TYPE STRING,
ECESS TYPE STRING,
SEC89 TYPE STRING,
NETAX TYPE STRING,
ATAXR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIN_SS_TAX_NR_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_PIN_SS_TAX_NR_STR-GRTOT sy-vline 
WA_PIN_SS_TAX_NR_STR-GRTIN sy-vline 
WA_PIN_SS_TAX_NR_STR-TOTIN sy-vline 
WA_PIN_SS_TAX_NR_STR-ANTAX sy-vline 
WA_PIN_SS_TAX_NR_STR-SRCHG sy-vline 
WA_PIN_SS_TAX_NR_STR-MEDIC sy-vline 
WA_PIN_SS_TAX_NR_STR-TOTTY sy-vline 
WA_PIN_SS_TAX_NR_STR-TOTPE sy-vline 
WA_PIN_SS_TAX_NR_STR-NPSER sy-vline 
WA_PIN_SS_TAX_NR_STR-EXEM sy-vline 
WA_PIN_SS_TAX_NR_STR-AG4AB sy-vline 
WA_PIN_SS_TAX_NR_STR-IFHPAMT sy-vline 
WA_PIN_SS_TAX_NR_STR-TOTOS sy-vline 
WA_PIN_SS_TAX_NR_STR-SUMVI sy-vline 
WA_PIN_SS_TAX_NR_STR-TXCRT sy-vline 
WA_PIN_SS_TAX_NR_STR-ECESS sy-vline 
WA_PIN_SS_TAX_NR_STR-SEC89 sy-vline 
WA_PIN_SS_TAX_NR_STR-NETAX sy-vline 
WA_PIN_SS_TAX_NR_STR-ATAXR sy-vline      INTO ld_text SEPARATED BY SPACE.

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