ABAP Select data from SAP table BSVX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BSVX
*  INTO TABLE @DATA(IT_BSVX2).
*--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_BSVX INDEX 1 INTO DATA(WA_BSVX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BSVX>-IFLG_HELL = 1.
<BSVX>-IFLG_INV = 1.
<BSVX>-EFLG_HELL = 1.
<BSVX>-EFLG_INV = 1.
<BSVX>-IENTRIES = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BSVX-IENTRY_ACT, sy-vline,
  WA_BSVX-EENTRIES, sy-vline,
  WA_BSVX-VENTRIES, sy-vline,
  WA_BSVX-XENTRIES, sy-vline,
  WA_BSVX-EENTRY_ACT, sy-vline,
  WA_BSVX-LOOPS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BSVX 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_BSVX 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_BSVX INTO WA_BSVX.


*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_BSVX_STR, 
IFLG_HELL TYPE STRING,
IFLG_INV TYPE STRING,
EFLG_HELL TYPE STRING,
EFLG_INV TYPE STRING,
IENTRIES TYPE STRING,
IENTRY_ACT TYPE STRING,
EENTRIES TYPE STRING,
VENTRIES TYPE STRING,
XENTRIES TYPE STRING,
EENTRY_ACT TYPE STRING,
LOOPS TYPE STRING,
IINDEX_AUF TYPE STRING,
IINDEX_STA TYPE STRING,
IINDEX_END TYPE STRING,
EINDEX_AUF TYPE STRING,
EINDEX_STA TYPE STRING,
EINDEX_END TYPE STRING,
IINDEX_ACT TYPE STRING,
EINDEX_ACT TYPE STRING,
VINDEX_ACT TYPE STRING,
VINDEX_AUF TYPE STRING,
XINDEX_ACT TYPE STRING,
XINDEX_AUF TYPE STRING,
ENTRIESI TYPE STRING,
INDEAUFI TYPE STRING,
INDEAUFV TYPE STRING,
ENTRIESE TYPE STRING,
INDEAUFE TYPE STRING,
ENTREISV TYPE STRING,
ENTRIESX TYPE STRING,
INDEAUFX TYPE STRING,
STTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BSVX_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_BSVX_STR-IFLG_HELL sy-vline 
WA_BSVX_STR-IFLG_INV sy-vline 
WA_BSVX_STR-EFLG_HELL sy-vline 
WA_BSVX_STR-EFLG_INV sy-vline 
WA_BSVX_STR-IENTRIES sy-vline 
WA_BSVX_STR-IENTRY_ACT sy-vline 
WA_BSVX_STR-EENTRIES sy-vline 
WA_BSVX_STR-VENTRIES sy-vline 
WA_BSVX_STR-XENTRIES sy-vline 
WA_BSVX_STR-EENTRY_ACT sy-vline 
WA_BSVX_STR-LOOPS sy-vline 
WA_BSVX_STR-IINDEX_AUF sy-vline 
WA_BSVX_STR-IINDEX_STA sy-vline 
WA_BSVX_STR-IINDEX_END sy-vline 
WA_BSVX_STR-EINDEX_AUF sy-vline 
WA_BSVX_STR-EINDEX_STA sy-vline 
WA_BSVX_STR-EINDEX_END sy-vline 
WA_BSVX_STR-IINDEX_ACT sy-vline 
WA_BSVX_STR-EINDEX_ACT sy-vline 
WA_BSVX_STR-VINDEX_ACT sy-vline 
WA_BSVX_STR-VINDEX_AUF sy-vline 
WA_BSVX_STR-XINDEX_ACT sy-vline 
WA_BSVX_STR-XINDEX_AUF sy-vline 
WA_BSVX_STR-ENTRIESI sy-vline 
WA_BSVX_STR-INDEAUFI sy-vline 
WA_BSVX_STR-INDEAUFV sy-vline 
WA_BSVX_STR-ENTRIESE sy-vline 
WA_BSVX_STR-INDEAUFE sy-vline 
WA_BSVX_STR-ENTREISV sy-vline 
WA_BSVX_STR-ENTRIESX sy-vline 
WA_BSVX_STR-INDEAUFX sy-vline 
WA_BSVX_STR-STTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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