ABAP Select data from SAP table FICNTAXS_INPUT_DECLN_SMMRY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FICNTAXS_INPUT_DECLN_SMMRY
*  INTO TABLE @DATA(IT_FICNTAXS_INPUT_DECLN_SMMRY2).
*--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_FICNTAXS_INPUT_DECLN_SMMRY INDEX 1 INTO DATA(WA_FICNTAXS_INPUT_DECLN_SMMRY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FICNTAXS_INPUT_DECLN_SMMRY>-DECLN_SMMRY_UUID = 1.
<FICNTAXS_INPUT_DECLN_SMMRY>-COMPANY_CODE = 1.
<FICNTAXS_INPUT_DECLN_SMMRY>-DECLN_YEAR = 1.
<FICNTAXS_INPUT_DECLN_SMMRY>-DECLN_MONTH = 1.
<FICNTAXS_INPUT_DECLN_SMMRY>-CNTAX_ENTITY_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FICNTAXS_INPUT_DECLN_SMMRY-INVC_COUNT, sy-vline,
  WA_FICNTAXS_INPUT_DECLN_SMMRY-DECLN_STATUS, sy-vline,
  WA_FICNTAXS_INPUT_DECLN_SMMRY-CRCY_CODE, sy-vline,
  WA_FICNTAXS_INPUT_DECLN_SMMRY-TAX_TOT_AMT, sy-vline,
  WA_FICNTAXS_INPUT_DECLN_SMMRY-DECLN_TOT_AMT, sy-vline,
  WA_FICNTAXS_INPUT_DECLN_SMMRY-TRANSFOUT_TOT_AMT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FICNTAXS_INPUT_DECLN_SMMRY 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_FICNTAXS_INPUT_DECLN_SMMRY 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_FICNTAXS_INPUT_DECLN_SMMRY INTO WA_FICNTAXS_INPUT_DECLN_SMMRY.


*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 AU172, internal->external for field TRANSFOUT_TOT_AMT
CALL FUNCTION 'CONVERSION_EXIT_AU172_OUTPUT'
  EXPORTING
    input =                      WA_FICNTAXS_INPUT_DECLN_SMMRY-TRANSFOUT_TOT_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FICNTAXS_INPUT_DECLN_SMMRY-TRANSFOUT_TOT_AMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU172, internal->external for field TRANSFIN_TOT_AMT
CALL FUNCTION 'CONVERSION_EXIT_AU172_OUTPUT'
  EXPORTING
    input =                      WA_FICNTAXS_INPUT_DECLN_SMMRY-TRANSFIN_TOT_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FICNTAXS_INPUT_DECLN_SMMRY-TRANSFIN_TOT_AMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_FICNTAXS_INPUT_DECLN_SMMRY-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FICNTAXS_INPUT_DECLN_SMMRY-LANGUAGE.
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_FICNTAXS_INPUT_DECLN_SMMRY_STR, 
DECLN_SMMRY_UUID TYPE STRING,
COMPANY_CODE TYPE STRING,
DECLN_YEAR TYPE STRING,
DECLN_MONTH TYPE STRING,
CNTAX_ENTITY_ID TYPE STRING,
INVC_COUNT TYPE STRING,
DECLN_STATUS TYPE STRING,
CRCY_CODE TYPE STRING,
TAX_TOT_AMT TYPE STRING,
DECLN_TOT_AMT TYPE STRING,
TRANSFOUT_TOT_AMT TYPE STRING,
TRANSFIN_TOT_AMT TYPE STRING,
DECLN_USER TYPE STRING,
DECLN_TIME TYPE STRING,
DECLN_YEARMONTH TYPE STRING,
DECLN_STATUS_DESC TYPE STRING,
COMPANY_NAME TYPE STRING,
TAX_REG_NMBR TYPE STRING,
DECLN_BEGIN_DATE TYPE STRING,
DECLN_END_DATE TYPE STRING,
LANGUAGE TYPE STRING,
CNTAX_ENTITY_TXT TYPE STRING,
ACTIVITY TYPE STRING,
USER_NAME TYPE STRING,
DEDUCT_TOT_AMT TYPE STRING,
INVC_COUNT_NOT_DECLED TYPE STRING,
TAX_TOT_AMT_NOT_DECLED TYPE STRING,
DEDUCT_TOT_AMT_NOT_DCLD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FICNTAXS_INPUT_DECLN_SMMRY_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_FICNTAXS_INPUT_DECLN_SMMRY_STR-DECLN_SMMRY_UUID sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-COMPANY_CODE sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DECLN_YEAR sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DECLN_MONTH sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-CNTAX_ENTITY_ID sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-INVC_COUNT sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DECLN_STATUS sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-CRCY_CODE sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-TAX_TOT_AMT sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DECLN_TOT_AMT sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-TRANSFOUT_TOT_AMT sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-TRANSFIN_TOT_AMT sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DECLN_USER sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DECLN_TIME sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DECLN_YEARMONTH sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DECLN_STATUS_DESC sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-COMPANY_NAME sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-TAX_REG_NMBR sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DECLN_BEGIN_DATE sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DECLN_END_DATE sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-LANGUAGE sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-CNTAX_ENTITY_TXT sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-ACTIVITY sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-USER_NAME sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DEDUCT_TOT_AMT sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-INVC_COUNT_NOT_DECLED sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-TAX_TOT_AMT_NOT_DECLED sy-vline 
WA_FICNTAXS_INPUT_DECLN_SMMRY_STR-DEDUCT_TOT_AMT_NOT_DCLD sy-vline      INTO ld_text SEPARATED BY SPACE.

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