ABAP Select data from SAP table /SAPCE/FKBG_VAT_DECLARATION into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPCE/FKBG_VAT_DECLARATION 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 /SAPCE/FKBG_VAT_DECLARATION. 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 /SAPCE/FKBG_VAT_DECLARATION 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_/SAPCE/FKBG_VAT_DECLARATION TYPE STANDARD TABLE OF /SAPCE/FKBG_VAT_DECLARATION,
      WA_/SAPCE/FKBG_VAT_DECLARATION TYPE /SAPCE/FKBG_VAT_DECLARATION,
      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: </SAPCE/FKBG_VAT_DECLARATION> TYPE /SAPCE/FKBG_VAT_DECLARATION.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPCE/FKBG_VAT_DECLARATION
  INTO TABLE IT_/SAPCE/FKBG_VAT_DECLARATION.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPCE/FKBG_VAT_DECLARATION
*  INTO TABLE @DATA(IT_/SAPCE/FKBG_VAT_DECLARATION2).
*--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_/SAPCE/FKBG_VAT_DECLARATION INDEX 1 INTO DATA(WA_/SAPCE/FKBG_VAT_DECLARATION2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPCE/FKBG_VAT_DECLARATION ASSIGNING </SAPCE/FKBG_VAT_DECLARATION>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPCE/FKBG_VAT_DECLARATION>-BUKRS = 1.
</SAPCE/FKBG_VAT_DECLARATION>-GJAHR = 1.
</SAPCE/FKBG_VAT_DECLARATION>-MONAT = 1.
</SAPCE/FKBG_VAT_DECLARATION>-PRD = 1.
</SAPCE/FKBG_VAT_DECLARATION>-CNAME = 1.

ENDLOOP.

LOOP AT IT_/SAPCE/FKBG_VAT_DECLARATION INTO WA_/SAPCE/FKBG_VAT_DECLARATION.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPCE/FKBG_VAT_DECLARATION-CADRC, sy-vline,
  WA_/SAPCE/FKBG_VAT_DECLARATION-BUINR, sy-vline,
  WA_/SAPCE/FKBG_VAT_DECLARATION-BSTAT, sy-vline,
  WA_/SAPCE/FKBG_VAT_DECLARATION-WAERS, sy-vline,
  WA_/SAPCE/FKBG_VAT_DECLARATION-CELL01, sy-vline,
  WA_/SAPCE/FKBG_VAT_DECLARATION-CELL11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPCE/FKBG_VAT_DECLARATION 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_/SAPCE/FKBG_VAT_DECLARATION 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_/SAPCE/FKBG_VAT_DECLARATION INTO WA_/SAPCE/FKBG_VAT_DECLARATION.


*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 GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCE/FKBG_VAT_DECLARATION-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCE/FKBG_VAT_DECLARATION-GJAHR.
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_/SAPCE/FKBG_VAT_DECLARATION_STR, 
BUKRS TYPE STRING,
GJAHR TYPE STRING,
MONAT TYPE STRING,
PRD TYPE STRING,
CNAME TYPE STRING,
CADRC TYPE STRING,
BUINR TYPE STRING,
BSTAT TYPE STRING,
WAERS TYPE STRING,
CELL01 TYPE STRING,
CELL11 TYPE STRING,
CELL12 TYPE STRING,
CELL13 TYPE STRING,
CELL14 TYPE STRING,
CELL15 TYPE STRING,
CELL16 TYPE STRING,
CELL17 TYPE STRING,
CELL18 TYPE STRING,
CELL19 TYPE STRING,
CELL20 TYPE STRING,
CELL21 TYPE STRING,
CELL22 TYPE STRING,
CELL23 TYPE STRING,
CELL24 TYPE STRING,
CELL30 TYPE STRING,
CELL31 TYPE STRING,
CELL32 TYPE STRING,
CELL33 TYPE STRING,
CELL40 TYPE STRING,
CELL41 TYPE STRING,
CELL42 TYPE STRING,
CELL43 TYPE STRING,
CELL50 TYPE STRING,
CELL60 TYPE STRING,
CELL70 TYPE STRING,
CELL71 TYPE STRING,
CELL80 TYPE STRING,
CELL81 TYPE STRING,
CELL82 TYPE STRING,
PPERS TYPE STRING,
PCAPA TYPE STRING,
VRPSD TYPE STRING,
VRPIN TYPE STRING,
VRRPN TYPE STRING,
VRPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPCE/FKBG_VAT_DECLARATION_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_/SAPCE/FKBG_VAT_DECLARATION_STR-BUKRS sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-GJAHR sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-MONAT sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-PRD sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CNAME sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CADRC sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-BUINR sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-BSTAT sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-WAERS sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL01 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL11 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL12 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL13 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL14 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL15 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL16 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL17 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL18 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL19 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL20 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL21 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL22 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL23 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL24 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL30 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL31 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL32 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL33 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL40 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL41 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL42 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL43 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL50 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL60 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL70 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL71 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL80 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL81 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-CELL82 sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-PPERS sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-PCAPA sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-VRPSD sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-VRPIN sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-VRRPN sy-vline 
WA_/SAPCE/FKBG_VAT_DECLARATION_STR-VRPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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