ABAP Select data from SAP table /CEECV/BGFI_VAT_DECLAR_FILE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CEECV/BGFI_VAT_DECLAR_FILE
*  INTO TABLE @DATA(IT_/CEECV/BGFI_VAT_DECLAR_FILE2).
*--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_/CEECV/BGFI_VAT_DECLAR_FILE INDEX 1 INTO DATA(WA_/CEECV/BGFI_VAT_DECLAR_FILE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</CEECV/BGFI_VAT_DECLAR_FILE>-PERS_CODE = 1.
</CEECV/BGFI_VAT_DECLAR_FILE>-PERS_NAME = 1.
</CEECV/BGFI_VAT_DECLAR_FILE>-TAX_PERIOD = 1.
</CEECV/BGFI_VAT_DECLAR_FILE>-PERS_PIN = 1.
</CEECV/BGFI_VAT_DECLAR_FILE>-COUNTER_SAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/CEECV/BGFI_VAT_DECLAR_FILE-COUNTER_PUR, sy-vline,
  WA_/CEECV/BGFI_VAT_DECLAR_FILE-SAL_COL_09, sy-vline,
  WA_/CEECV/BGFI_VAT_DECLAR_FILE-SAL_COL_10, sy-vline,
  WA_/CEECV/BGFI_VAT_DECLAR_FILE-SAL_COL_11, sy-vline,
  WA_/CEECV/BGFI_VAT_DECLAR_FILE-SAL_COL_12, sy-vline,
  WA_/CEECV/BGFI_VAT_DECLAR_FILE-SAL_COL_13, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/CEECV/BGFI_VAT_DECLAR_FILE 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_/CEECV/BGFI_VAT_DECLAR_FILE 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_/CEECV/BGFI_VAT_DECLAR_FILE INTO WA_/CEECV/BGFI_VAT_DECLAR_FILE.


*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_/CEECV/BGFI_VAT_DECLAR_FILE_STR, 
PERS_CODE TYPE STRING,
PERS_NAME TYPE STRING,
TAX_PERIOD TYPE STRING,
PERS_PIN TYPE STRING,
COUNTER_SAL TYPE STRING,
COUNTER_PUR TYPE STRING,
SAL_COL_09 TYPE STRING,
SAL_COL_10 TYPE STRING,
SAL_COL_11 TYPE STRING,
SAL_COL_12 TYPE STRING,
SAL_COL_13 TYPE STRING,
SAL_COL_15 TYPE STRING,
SAL_COL_16 TYPE STRING,
SAL_COL_17 TYPE STRING,
SAL_COL_18 TYPE STRING,
SAL_COL_19 TYPE STRING,
SAL_COL_20 TYPE STRING,
SAL_COL_21 TYPE STRING,
SAL_COL_22 TYPE STRING,
SAL_COL_23 TYPE STRING,
SAL_COL_24 TYPE STRING,
PUR_COL_09 TYPE STRING,
PUR_COL_10 TYPE STRING,
PUR_COL_11 TYPE STRING,
PUR_COL_12 TYPE STRING,
PUR_COL_13 TYPE STRING,
PUR_COL_14 TYPE STRING,
PCELL33 TYPE STRING,
PCELL40 TYPE STRING,
PCELL20401 TYPE STRING,
PCELL20402 TYPE STRING,
PCELL70 TYPE STRING,
PCELL71 TYPE STRING,
PCELL80 TYPE STRING,
PCELL81 TYPE STRING,
PCELL82 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/CEECV/BGFI_VAT_DECLAR_FILE_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_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PERS_CODE sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PERS_NAME sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-TAX_PERIOD sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PERS_PIN sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-COUNTER_SAL sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-COUNTER_PUR sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_09 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_10 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_11 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_12 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_13 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_15 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_16 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_17 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_18 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_19 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_20 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_21 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_22 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_23 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-SAL_COL_24 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PUR_COL_09 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PUR_COL_10 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PUR_COL_11 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PUR_COL_12 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PUR_COL_13 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PUR_COL_14 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PCELL33 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PCELL40 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PCELL20401 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PCELL20402 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PCELL70 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PCELL71 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PCELL80 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PCELL81 sy-vline 
WA_/CEECV/BGFI_VAT_DECLAR_FILE_STR-PCELL82 sy-vline      INTO ld_text SEPARATED BY SPACE.

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