ABAP Select data from SAP table FIKZ_S_VATRET_MAIN_BLOCK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIKZ_S_VATRET_MAIN_BLOCK
*  INTO TABLE @DATA(IT_FIKZ_S_VATRET_MAIN_BLOCK2).
*--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_FIKZ_S_VATRET_MAIN_BLOCK INDEX 1 INTO DATA(WA_FIKZ_S_VATRET_MAIN_BLOCK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIKZ_S_VATRET_MAIN_BLOCK>-TOTAL = 1.
<FIKZ_S_VATRET_MAIN_BLOCK>-DESCRIPTION = 1.
<FIKZ_S_VATRET_MAIN_BLOCK>-BASEAMOUNT = 1.
<FIKZ_S_VATRET_MAIN_BLOCK>-TAXAMOUNT = 1.
<FIKZ_S_VATRET_MAIN_BLOCK>-CURRENCY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIKZ_S_VATRET_MAIN_BLOCK-I, sy-vline,
  WA_FIKZ_S_VATRET_MAIN_BLOCK-DESCRIPTION, sy-vline,
  WA_FIKZ_S_VATRET_MAIN_BLOCK-BASEAMOUNT, sy-vline,
  WA_FIKZ_S_VATRET_MAIN_BLOCK-TAXAMOUNT, sy-vline,
  WA_FIKZ_S_VATRET_MAIN_BLOCK-CURRENCY, sy-vline,
  WA_FIKZ_S_VATRET_MAIN_BLOCK-II, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIKZ_S_VATRET_MAIN_BLOCK 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_FIKZ_S_VATRET_MAIN_BLOCK 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_FIKZ_S_VATRET_MAIN_BLOCK INTO WA_FIKZ_S_VATRET_MAIN_BLOCK.


*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 AC152, internal->external for field BASEAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_VATRET_MAIN_BLOCK-BASEAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_VATRET_MAIN_BLOCK-BASEAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_VATRET_MAIN_BLOCK-TAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_VATRET_MAIN_BLOCK-TAXAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field BASEAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_VATRET_MAIN_BLOCK-BASEAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_VATRET_MAIN_BLOCK-BASEAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_VATRET_MAIN_BLOCK-TAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_VATRET_MAIN_BLOCK-TAXAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field BASEAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_VATRET_MAIN_BLOCK-BASEAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_VATRET_MAIN_BLOCK-BASEAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_VATRET_MAIN_BLOCK-TAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_VATRET_MAIN_BLOCK-TAXAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field BASEAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_VATRET_MAIN_BLOCK-BASEAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_VATRET_MAIN_BLOCK-BASEAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_VATRET_MAIN_BLOCK-TAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_VATRET_MAIN_BLOCK-TAXAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field BASEAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_VATRET_MAIN_BLOCK-BASEAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_VATRET_MAIN_BLOCK-BASEAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_VATRET_MAIN_BLOCK-TAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_VATRET_MAIN_BLOCK-TAXAMOUNT.
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_FIKZ_S_VATRET_MAIN_BLOCK_STR, 
TOTAL TYPE STRING,
DESCRIPTION TYPE STRING,
BASEAMOUNT TYPE STRING,
TAXAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
I TYPE STRING,
DESCRIPTION TYPE STRING,
BASEAMOUNT TYPE STRING,
TAXAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
II TYPE STRING,
DESCRIPTION TYPE STRING,
BASEAMOUNT TYPE STRING,
TAXAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
III TYPE STRING,
DESCRIPTION TYPE STRING,
BASEAMOUNT TYPE STRING,
TAXAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
IV TYPE STRING,
DESCRIPTION TYPE STRING,
BASEAMOUNT TYPE STRING,
TAXAMOUNT TYPE STRING,
CURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIKZ_S_VATRET_MAIN_BLOCK_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_FIKZ_S_VATRET_MAIN_BLOCK_STR-TOTAL sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-DESCRIPTION sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-BASEAMOUNT sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-TAXAMOUNT sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-CURRENCY sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-I sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-DESCRIPTION sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-BASEAMOUNT sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-TAXAMOUNT sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-CURRENCY sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-II sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-DESCRIPTION sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-BASEAMOUNT sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-TAXAMOUNT sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-CURRENCY sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-III sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-DESCRIPTION sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-BASEAMOUNT sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-TAXAMOUNT sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-CURRENCY sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-IV sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-DESCRIPTION sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-BASEAMOUNT sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-TAXAMOUNT sy-vline 
WA_FIKZ_S_VATRET_MAIN_BLOCK_STR-CURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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