ABAP Select data from SAP table J_3R_TRTAX into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3R_TRTAX 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 J_3R_TRTAX. 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 J_3R_TRTAX 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_J_3R_TRTAX TYPE STANDARD TABLE OF J_3R_TRTAX,
      WA_J_3R_TRTAX TYPE J_3R_TRTAX,
      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: <J_3R_TRTAX> TYPE J_3R_TRTAX.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3R_TRTAX.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3R_TRTAX
  INTO TABLE IT_J_3R_TRTAX.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3R_TRTAX
*  INTO TABLE @DATA(IT_J_3R_TRTAX2).
*--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_J_3R_TRTAX INDEX 1 INTO DATA(WA_J_3R_TRTAX2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3R_TRTAX ASSIGNING <J_3R_TRTAX>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3R_TRTAX>-ALV_TEXT = 1.
<J_3R_TRTAX>-FSD = 1.
<J_3R_TRTAX>-INN = 1.
<J_3R_TRTAX>-KPP = 1.
<J_3R_TRTAX>-DOC_TYPE = 1.

ENDLOOP.

LOOP AT IT_J_3R_TRTAX INTO WA_J_3R_TRTAX.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3R_TRTAX-CORR_NUM, sy-vline,
  WA_J_3R_TRTAX-REP_PERIOD, sy-vline,
  WA_J_3R_TRTAX-REP_YEAR, sy-vline,
  WA_J_3R_TRTAX-TAX_AUTH, sy-vline,
  WA_J_3R_TRTAX-TAX_AUTH_CODE, sy-vline,
  WA_J_3R_TRTAX-ORGANIZATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3R_TRTAX 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_J_3R_TRTAX 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_J_3R_TRTAX INTO WA_J_3R_TRTAX.


*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 TAX_AUTH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3R_TRTAX-TAX_AUTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3R_TRTAX-TAX_AUTH.
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_J_3R_TRTAX_STR, 
ALV_TEXT TYPE STRING,
FSD TYPE STRING,
INN TYPE STRING,
KPP TYPE STRING,
DOC_TYPE TYPE STRING,
CORR_NUM TYPE STRING,
REP_PERIOD TYPE STRING,
REP_YEAR TYPE STRING,
TAX_AUTH TYPE STRING,
TAX_AUTH_CODE TYPE STRING,
ORGANIZATION TYPE STRING,
OGRN TYPE STRING,
CONTACT_PHONE TYPE STRING,
PAGE_NUM TYPE STRING,
SHEET_NUM TYPE STRING,
CEO_NAME TYPE STRING,
CEO_INN TYPE STRING,
CHIEF_ACC_NAME TYPE STRING,
CHIEF_ACC_INN TYPE STRING,
REPR_NAME TYPE STRING,
REPR_INN TYPE STRING,
DOC_NUM TYPE STRING,
QUARTER TYPE STRING,
APPENDIX TYPE STRING,
OKVED_CODE TYPE STRING,
FOREIGN_COMP TYPE STRING,
NAME1 TYPE STRING,
VENDOR_NAME TYPE STRING,
P_AT_LOCATION TYPE STRING,
REORGANIZATION TYPE STRING,
REORGINN TYPE STRING,
REORGKPP TYPE STRING,
DECL_BY_REPR TYPE STRING,
TAXPAYER_ORG TYPE STRING,
S1D TYPE STRING,
INN TYPE STRING,
KPP TYPE STRING,
PAGE_NUM TYPE STRING,
S1T TYPE STRING,
S2D TYPE STRING,
INN TYPE STRING,
KPP TYPE STRING,
PAGE_NUM TYPE STRING,
S2T TYPE STRING,
S3D TYPE STRING,
INN TYPE STRING,
KPP TYPE STRING,
PAGE_NUM TYPE STRING,
S3T TYPE STRING,
S1M TYPE STRING,
S1S TYPE STRING,
DATE4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3R_TRTAX_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_J_3R_TRTAX_STR-ALV_TEXT sy-vline 
WA_J_3R_TRTAX_STR-FSD sy-vline 
WA_J_3R_TRTAX_STR-INN sy-vline 
WA_J_3R_TRTAX_STR-KPP sy-vline 
WA_J_3R_TRTAX_STR-DOC_TYPE sy-vline 
WA_J_3R_TRTAX_STR-CORR_NUM sy-vline 
WA_J_3R_TRTAX_STR-REP_PERIOD sy-vline 
WA_J_3R_TRTAX_STR-REP_YEAR sy-vline 
WA_J_3R_TRTAX_STR-TAX_AUTH sy-vline 
WA_J_3R_TRTAX_STR-TAX_AUTH_CODE sy-vline 
WA_J_3R_TRTAX_STR-ORGANIZATION sy-vline 
WA_J_3R_TRTAX_STR-OGRN sy-vline 
WA_J_3R_TRTAX_STR-CONTACT_PHONE sy-vline 
WA_J_3R_TRTAX_STR-PAGE_NUM sy-vline 
WA_J_3R_TRTAX_STR-SHEET_NUM sy-vline 
WA_J_3R_TRTAX_STR-CEO_NAME sy-vline 
WA_J_3R_TRTAX_STR-CEO_INN sy-vline 
WA_J_3R_TRTAX_STR-CHIEF_ACC_NAME sy-vline 
WA_J_3R_TRTAX_STR-CHIEF_ACC_INN sy-vline 
WA_J_3R_TRTAX_STR-REPR_NAME sy-vline 
WA_J_3R_TRTAX_STR-REPR_INN sy-vline 
WA_J_3R_TRTAX_STR-DOC_NUM sy-vline 
WA_J_3R_TRTAX_STR-QUARTER sy-vline 
WA_J_3R_TRTAX_STR-APPENDIX sy-vline 
WA_J_3R_TRTAX_STR-OKVED_CODE sy-vline 
WA_J_3R_TRTAX_STR-FOREIGN_COMP sy-vline 
WA_J_3R_TRTAX_STR-NAME1 sy-vline 
WA_J_3R_TRTAX_STR-VENDOR_NAME sy-vline 
WA_J_3R_TRTAX_STR-P_AT_LOCATION sy-vline 
WA_J_3R_TRTAX_STR-REORGANIZATION sy-vline 
WA_J_3R_TRTAX_STR-REORGINN sy-vline 
WA_J_3R_TRTAX_STR-REORGKPP sy-vline 
WA_J_3R_TRTAX_STR-DECL_BY_REPR sy-vline 
WA_J_3R_TRTAX_STR-TAXPAYER_ORG sy-vline 
WA_J_3R_TRTAX_STR-S1D sy-vline 
WA_J_3R_TRTAX_STR-INN sy-vline 
WA_J_3R_TRTAX_STR-KPP sy-vline 
WA_J_3R_TRTAX_STR-PAGE_NUM sy-vline 
WA_J_3R_TRTAX_STR-S1T sy-vline 
WA_J_3R_TRTAX_STR-S2D sy-vline 
WA_J_3R_TRTAX_STR-INN sy-vline 
WA_J_3R_TRTAX_STR-KPP sy-vline 
WA_J_3R_TRTAX_STR-PAGE_NUM sy-vline 
WA_J_3R_TRTAX_STR-S2T sy-vline 
WA_J_3R_TRTAX_STR-S3D sy-vline 
WA_J_3R_TRTAX_STR-INN sy-vline 
WA_J_3R_TRTAX_STR-KPP sy-vline 
WA_J_3R_TRTAX_STR-PAGE_NUM sy-vline 
WA_J_3R_TRTAX_STR-S3T sy-vline 
WA_J_3R_TRTAX_STR-S1M sy-vline 
WA_J_3R_TRTAX_STR-S1S sy-vline 
WA_J_3R_TRTAX_STR-DATE4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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