ABAP Select data from SAP table VTAI10 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VTAI10 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 VTAI10. 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 VTAI10 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_VTAI10 TYPE STANDARD TABLE OF VTAI10,
      WA_VTAI10 TYPE VTAI10,
      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: <VTAI10> TYPE VTAI10.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VTAI10.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VTAI10
  INTO TABLE IT_VTAI10.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTAI10
*  INTO TABLE @DATA(IT_VTAI102).
*--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_VTAI10 INDEX 1 INTO DATA(WA_VTAI102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VTAI10 ASSIGNING <VTAI10>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTAI10>-R1BEW = 1.
<VTAI10>-S1BEWART = 1.
<VTAI10>-T1BEWART = 1.
<VTAI10>-W1WAERS = 1.
<VTAI10>-B1BETR = 1.

ENDLOOP.

LOOP AT IT_VTAI10 INTO WA_VTAI10.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTAI10-R1PBANK, sy-vline,
  WA_VTAI10-R1UBANK, sy-vline,
  WA_VTAI10-R1UKONT, sy-vline,
  WA_VTAI10-K1HWKURS, sy-vline,
  WA_VTAI10-R2BEW, sy-vline,
  WA_VTAI10-S2BEWART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTAI10 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_VTAI10 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_VTAI10 INTO WA_VTAI10.


*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 EXCRT, internal->external for field K1HWKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_VTAI10-K1HWKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTAI10-K1HWKURS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field K2HWKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_VTAI10-K2HWKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTAI10-K2HWKURS.
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_VTAI10_STR, 
R1BEW TYPE STRING,
S1BEWART TYPE STRING,
T1BEWART TYPE STRING,
W1WAERS TYPE STRING,
B1BETR TYPE STRING,
R1PBANK TYPE STRING,
R1UBANK TYPE STRING,
R1UKONT TYPE STRING,
K1HWKURS TYPE STRING,
R2BEW TYPE STRING,
S2BEWART TYPE STRING,
T2BEWART TYPE STRING,
W2WAERS TYPE STRING,
B2BETR TYPE STRING,
R2PBANK TYPE STRING,
R2UBANK TYPE STRING,
R2UKONT TYPE STRING,
K2HWKURS TYPE STRING,
DVALUTA1 TYPE STRING,
DVALUTA2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTAI10_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_VTAI10_STR-R1BEW sy-vline 
WA_VTAI10_STR-S1BEWART sy-vline 
WA_VTAI10_STR-T1BEWART sy-vline 
WA_VTAI10_STR-W1WAERS sy-vline 
WA_VTAI10_STR-B1BETR sy-vline 
WA_VTAI10_STR-R1PBANK sy-vline 
WA_VTAI10_STR-R1UBANK sy-vline 
WA_VTAI10_STR-R1UKONT sy-vline 
WA_VTAI10_STR-K1HWKURS sy-vline 
WA_VTAI10_STR-R2BEW sy-vline 
WA_VTAI10_STR-S2BEWART sy-vline 
WA_VTAI10_STR-T2BEWART sy-vline 
WA_VTAI10_STR-W2WAERS sy-vline 
WA_VTAI10_STR-B2BETR sy-vline 
WA_VTAI10_STR-R2PBANK sy-vline 
WA_VTAI10_STR-R2UBANK sy-vline 
WA_VTAI10_STR-R2UKONT sy-vline 
WA_VTAI10_STR-K2HWKURS sy-vline 
WA_VTAI10_STR-DVALUTA1 sy-vline 
WA_VTAI10_STR-DVALUTA2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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