ABAP Select data from SAP table FVD_CHK_IOA_OI_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FVD_CHK_IOA_OI_DATA
*  INTO TABLE @DATA(IT_FVD_CHK_IOA_OI_DATA2).
*--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_FVD_CHK_IOA_OI_DATA INDEX 1 INTO DATA(WA_FVD_CHK_IOA_OI_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FVD_CHK_IOA_OI_DATA>-MANDT = 1.
<FVD_CHK_IOA_OI_DATA>-BUKRS = 1.
<FVD_CHK_IOA_OI_DATA>-KUNNR = 1.
<FVD_CHK_IOA_OI_DATA>-BELNR = 1.
<FVD_CHK_IOA_OI_DATA>-BUZEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FVD_CHK_IOA_OI_DATA-GJAHR, sy-vline,
  WA_FVD_CHK_IOA_OI_DATA-VERTN, sy-vline,
  WA_FVD_CHK_IOA_OI_DATA-VBEWA, sy-vline,
  WA_FVD_CHK_IOA_OI_DATA-REBZG, sy-vline,
  WA_FVD_CHK_IOA_OI_DATA-REBZZ, sy-vline,
  WA_FVD_CHK_IOA_OI_DATA-REBZJ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FVD_CHK_IOA_OI_DATA 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_FVD_CHK_IOA_OI_DATA 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_FVD_CHK_IOA_OI_DATA INTO WA_FVD_CHK_IOA_OI_DATA.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FVD_CHK_IOA_OI_DATA-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FVD_CHK_IOA_OI_DATA-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FVD_CHK_IOA_OI_DATA-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FVD_CHK_IOA_OI_DATA-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FVD_CHK_IOA_OI_DATA-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FVD_CHK_IOA_OI_DATA-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FVD_CHK_IOA_OI_DATA-VERTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FVD_CHK_IOA_OI_DATA-VERTN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REBZG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FVD_CHK_IOA_OI_DATA-REBZG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FVD_CHK_IOA_OI_DATA-REBZG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field REBZJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FVD_CHK_IOA_OI_DATA-REBZJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FVD_CHK_IOA_OI_DATA-REBZJ.
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_FVD_CHK_IOA_OI_DATA_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
KUNNR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
GJAHR TYPE STRING,
VERTN TYPE STRING,
VBEWA TYPE STRING,
REBZG TYPE STRING,
REBZZ TYPE STRING,
REBZJ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FVD_CHK_IOA_OI_DATA_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_FVD_CHK_IOA_OI_DATA_STR-MANDT sy-vline 
WA_FVD_CHK_IOA_OI_DATA_STR-BUKRS sy-vline 
WA_FVD_CHK_IOA_OI_DATA_STR-KUNNR sy-vline 
WA_FVD_CHK_IOA_OI_DATA_STR-BELNR sy-vline 
WA_FVD_CHK_IOA_OI_DATA_STR-BUZEI sy-vline 
WA_FVD_CHK_IOA_OI_DATA_STR-GJAHR sy-vline 
WA_FVD_CHK_IOA_OI_DATA_STR-VERTN sy-vline 
WA_FVD_CHK_IOA_OI_DATA_STR-VBEWA sy-vline 
WA_FVD_CHK_IOA_OI_DATA_STR-REBZG sy-vline 
WA_FVD_CHK_IOA_OI_DATA_STR-REBZZ sy-vline 
WA_FVD_CHK_IOA_OI_DATA_STR-REBZJ sy-vline      INTO ld_text SEPARATED BY SPACE.

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