ABAP Select data from SAP table PNZSRTAXRETBOX4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PNZSRTAXRETBOX4 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 PNZSRTAXRETBOX4. 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 PNZSRTAXRETBOX4 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_PNZSRTAXRETBOX4 TYPE STANDARD TABLE OF PNZSRTAXRETBOX4,
      WA_PNZSRTAXRETBOX4 TYPE PNZSRTAXRETBOX4,
      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: <PNZSRTAXRETBOX4> TYPE PNZSRTAXRETBOX4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PNZSRTAXRETBOX4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PNZSRTAXRETBOX4
  INTO TABLE IT_PNZSRTAXRETBOX4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PNZSRTAXRETBOX4
*  INTO TABLE @DATA(IT_PNZSRTAXRETBOX42).
*--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_PNZSRTAXRETBOX4 INDEX 1 INTO DATA(WA_PNZSRTAXRETBOX42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PNZSRTAXRETBOX4 ASSIGNING <PNZSRTAXRETBOX4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PNZSRTAXRETBOX4>-MANDT = 1.
<PNZSRTAXRETBOX4>-COMPANYCODE = 1.
<PNZSRTAXRETBOX4>-TAXBOX05AMOUNT = 1.
<PNZSRTAXRETBOX4>-TAXBOX06AMOUNT = 1.
<PNZSRTAXRETBOX4>-TAXBOX07AMOUNT = 1.

ENDLOOP.

LOOP AT IT_PNZSRTAXRETBOX4 INTO WA_PNZSRTAXRETBOX4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PNZSRTAXRETBOX4-TAXBOX08AMOUNT, sy-vline,
  WA_PNZSRTAXRETBOX4-TAXBOX09AMOUNT, sy-vline,
  WA_PNZSRTAXRETBOX4-TAXBOX10AMOUNT, sy-vline,
  WA_PNZSRTAXRETBOX4-TAXBOX10AMOUNTA, sy-vline,
  WA_PNZSRTAXRETBOX4-TAXBOX11AMOUNT, sy-vline,
  WA_PNZSRTAXRETBOX4-TAXBOX12AMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PNZSRTAXRETBOX4 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_PNZSRTAXRETBOX4 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_PNZSRTAXRETBOX4 INTO WA_PNZSRTAXRETBOX4.


*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_PNZSRTAXRETBOX4_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
TAXBOX05AMOUNT TYPE STRING,
TAXBOX06AMOUNT TYPE STRING,
TAXBOX07AMOUNT TYPE STRING,
TAXBOX08AMOUNT TYPE STRING,
TAXBOX09AMOUNT TYPE STRING,
TAXBOX10AMOUNT TYPE STRING,
TAXBOX10AMOUNTA TYPE STRING,
TAXBOX11AMOUNT TYPE STRING,
TAXBOX12AMOUNT TYPE STRING,
TAXBOX13AMOUNT TYPE STRING,
TAXBOX14AMOUNT TYPE STRING,
TAXBOX14AMOUNTA TYPE STRING,
REPORTINGCURRENCY TYPE STRING,
MONTH_CHECK TYPE STRING,
NOV_OUTPUT TYPE STRING,
MARCH_OUTPUT TYPE STRING,
REST_OUTPUT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PNZSRTAXRETBOX4_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_PNZSRTAXRETBOX4_STR-MANDT sy-vline 
WA_PNZSRTAXRETBOX4_STR-COMPANYCODE sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX05AMOUNT sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX06AMOUNT sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX07AMOUNT sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX08AMOUNT sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX09AMOUNT sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX10AMOUNT sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX10AMOUNTA sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX11AMOUNT sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX12AMOUNT sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX13AMOUNT sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX14AMOUNT sy-vline 
WA_PNZSRTAXRETBOX4_STR-TAXBOX14AMOUNTA sy-vline 
WA_PNZSRTAXRETBOX4_STR-REPORTINGCURRENCY sy-vline 
WA_PNZSRTAXRETBOX4_STR-MONTH_CHECK sy-vline 
WA_PNZSRTAXRETBOX4_STR-NOV_OUTPUT sy-vline 
WA_PNZSRTAXRETBOX4_STR-MARCH_OUTPUT sy-vline 
WA_PNZSRTAXRETBOX4_STR-REST_OUTPUT sy-vline      INTO ld_text SEPARATED BY SPACE.

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