ABAP Select data from SAP table V_BSIUDTA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_BSIUDTA
*  INTO TABLE @DATA(IT_V_BSIUDTA2).
*--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_V_BSIUDTA INDEX 1 INTO DATA(WA_V_BSIUDTA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_BSIUDTA>-MANDT = 1.
<V_BSIUDTA>-TSTCASE = 1.
<V_BSIUDTA>-EMPLO_CODE = 1.
<V_BSIUDTA>-EMPLO_NAME = 1.
<V_BSIUDTA>-COMPA_CODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_BSIUDTA-GROUP_CODE, sy-vline,
  WA_V_BSIUDTA-CHECK_DATE, sy-vline,
  WA_V_BSIUDTA-PAYME_TYPE, sy-vline,
  WA_V_BSIUDTA-PAY_PERIOD, sy-vline,
  WA_V_BSIUDTA-YTD_PAY_PE, sy-vline,
  WA_V_BSIUDTA-VACAT_HOUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_BSIUDTA 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_V_BSIUDTA 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_V_BSIUDTA INTO WA_V_BSIUDTA.


*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_V_BSIUDTA_STR, 
MANDT TYPE STRING,
TSTCASE TYPE STRING,
EMPLO_CODE TYPE STRING,
EMPLO_NAME TYPE STRING,
COMPA_CODE TYPE STRING,
GROUP_CODE TYPE STRING,
CHECK_DATE TYPE STRING,
PAYME_TYPE TYPE STRING,
PAY_PERIOD TYPE STRING,
YTD_PAY_PE TYPE STRING,
VACAT_HOUR TYPE STRING,
STD_H_PAPE TYPE STRING,
NET_WAGES TYPE STRING,
EST_ANN_GR TYPE STRING,
EST_D_SP_I TYPE STRING,
GR_UP_CODE TYPE STRING,
RECIP_CODE TYPE STRING,
C_ANN_GROS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_BSIUDTA_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_V_BSIUDTA_STR-MANDT sy-vline 
WA_V_BSIUDTA_STR-TSTCASE sy-vline 
WA_V_BSIUDTA_STR-EMPLO_CODE sy-vline 
WA_V_BSIUDTA_STR-EMPLO_NAME sy-vline 
WA_V_BSIUDTA_STR-COMPA_CODE sy-vline 
WA_V_BSIUDTA_STR-GROUP_CODE sy-vline 
WA_V_BSIUDTA_STR-CHECK_DATE sy-vline 
WA_V_BSIUDTA_STR-PAYME_TYPE sy-vline 
WA_V_BSIUDTA_STR-PAY_PERIOD sy-vline 
WA_V_BSIUDTA_STR-YTD_PAY_PE sy-vline 
WA_V_BSIUDTA_STR-VACAT_HOUR sy-vline 
WA_V_BSIUDTA_STR-STD_H_PAPE sy-vline 
WA_V_BSIUDTA_STR-NET_WAGES sy-vline 
WA_V_BSIUDTA_STR-EST_ANN_GR sy-vline 
WA_V_BSIUDTA_STR-EST_D_SP_I sy-vline 
WA_V_BSIUDTA_STR-GR_UP_CODE sy-vline 
WA_V_BSIUDTA_STR-RECIP_CODE sy-vline 
WA_V_BSIUDTA_STR-C_ANN_GROS sy-vline      INTO ld_text SEPARATED BY SPACE.

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