ABAP Select data from SAP table VTB_SI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTB_SI
*  INTO TABLE @DATA(IT_VTB_SI2).
*--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_VTB_SI INDEX 1 INTO DATA(WA_VTB_SI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTB_SI>-MANDT = 1.
<VTB_SI>-BUKRS = 1.
<VTB_SI>-RSICH = 1.
<VTB_SI>-KLTYP = 1.
<VTB_SI>-KLART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTB_SI-RMAINZUO, sy-vline,
  WA_VTB_SI-DBLFZ, sy-vline,
  WA_VTB_SI-DSICH, sy-vline,
  WA_VTB_SI-WTRANS, sy-vline,
  WA_VTB_SI-WBASIS, sy-vline,
  WA_VTB_SI-KSICH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTB_SI 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_VTB_SI 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_VTB_SI INTO WA_VTB_SI.


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

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

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

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

*Conversion exit EXCRT, internal->external for field KURSR
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_VTB_SI-KURSR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTB_SI-KURSR.
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_VTB_SI_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
RSICH TYPE STRING,
KLTYP TYPE STRING,
KLART TYPE STRING,
RMAINZUO TYPE STRING,
DBLFZ TYPE STRING,
DSICH TYPE STRING,
WTRANS TYPE STRING,
WBASIS TYPE STRING,
KSICH TYPE STRING,
WLWAERS TYPE STRING,
WFWAERS TYPE STRING,
BZTRANS TYPE STRING,
SSIGNT TYPE STRING,
BZBASIS TYPE STRING,
SSIGNB TYPE STRING,
KSCHNITT TYPE STRING,
KHIST TYPE STRING,
SKALIDB TYPE STRING,
SKALIDT TYPE STRING,
OBJNR TYPE STRING,
CRUSER TYPE STRING,
DCRDAT TYPE STRING,
TCRTIM TYPE STRING,
UPUSER TYPE STRING,
DUPDAT TYPE STRING,
TUPTIM TYPE STRING,
SSTATUS TYPE STRING,
BSALDO TYPE STRING,
SSIGNBS TYPE STRING,
XRSICH TYPE STRING,
ENTRYA TYPE STRING,
ENTRYS TYPE STRING,
XBZTRANS TYPE STRING,
SSIGNBT TYPE STRING,
XBZBASIS TYPE STRING,
SSIGNBB TYPE STRING,
XDSICH TYPE STRING,
XSTATUS TYPE STRING,
KSICHK TYPE STRING,
KURSR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTB_SI_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_VTB_SI_STR-MANDT sy-vline 
WA_VTB_SI_STR-BUKRS sy-vline 
WA_VTB_SI_STR-RSICH sy-vline 
WA_VTB_SI_STR-KLTYP sy-vline 
WA_VTB_SI_STR-KLART sy-vline 
WA_VTB_SI_STR-RMAINZUO sy-vline 
WA_VTB_SI_STR-DBLFZ sy-vline 
WA_VTB_SI_STR-DSICH sy-vline 
WA_VTB_SI_STR-WTRANS sy-vline 
WA_VTB_SI_STR-WBASIS sy-vline 
WA_VTB_SI_STR-KSICH sy-vline 
WA_VTB_SI_STR-WLWAERS sy-vline 
WA_VTB_SI_STR-WFWAERS sy-vline 
WA_VTB_SI_STR-BZTRANS sy-vline 
WA_VTB_SI_STR-SSIGNT sy-vline 
WA_VTB_SI_STR-BZBASIS sy-vline 
WA_VTB_SI_STR-SSIGNB sy-vline 
WA_VTB_SI_STR-KSCHNITT sy-vline 
WA_VTB_SI_STR-KHIST sy-vline 
WA_VTB_SI_STR-SKALIDB sy-vline 
WA_VTB_SI_STR-SKALIDT sy-vline 
WA_VTB_SI_STR-OBJNR sy-vline 
WA_VTB_SI_STR-CRUSER sy-vline 
WA_VTB_SI_STR-DCRDAT sy-vline 
WA_VTB_SI_STR-TCRTIM sy-vline 
WA_VTB_SI_STR-UPUSER sy-vline 
WA_VTB_SI_STR-DUPDAT sy-vline 
WA_VTB_SI_STR-TUPTIM sy-vline 
WA_VTB_SI_STR-SSTATUS sy-vline 
WA_VTB_SI_STR-BSALDO sy-vline 
WA_VTB_SI_STR-SSIGNBS sy-vline 
WA_VTB_SI_STR-XRSICH sy-vline 
WA_VTB_SI_STR-ENTRYA sy-vline 
WA_VTB_SI_STR-ENTRYS sy-vline 
WA_VTB_SI_STR-XBZTRANS sy-vline 
WA_VTB_SI_STR-SSIGNBT sy-vline 
WA_VTB_SI_STR-XBZBASIS sy-vline 
WA_VTB_SI_STR-SSIGNBB sy-vline 
WA_VTB_SI_STR-XDSICH sy-vline 
WA_VTB_SI_STR-XSTATUS sy-vline 
WA_VTB_SI_STR-KSICHK sy-vline 
WA_VTB_SI_STR-KURSR sy-vline      INTO ld_text SEPARATED BY SPACE.

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