ABAP Select data from SAP table PRUVC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRUVC
*  INTO TABLE @DATA(IT_PRUVC2).
*--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_PRUVC INDEX 1 INTO DATA(WA_PRUVC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRUVC>-STAT1 = 1.
<PRUVC>-STAT2 = 1.
<PRUVC>-STAT3 = 1.
<PRUVC>-AKTIVJN = 1.
<PRUVC>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRUVC-WERKS, sy-vline,
  WA_PRUVC-BTRTL, sy-vline,
  WA_PRUVC-KOSTL, sy-vline,
  WA_PRUVC-PERSG, sy-vline,
  WA_PRUVC-PERSK, sy-vline,
  WA_PRUVC-ABART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRUVC 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_PRUVC 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_PRUVC INTO WA_PRUVC.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRUVC-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUVC-KOSTL.
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_PRUVC_STR, 
STAT1 TYPE STRING,
STAT2 TYPE STRING,
STAT3 TYPE STRING,
AKTIVJN TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
KOSTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
ABART TYPE STRING,
PLANS TYPE STRING,
GSBER TYPE STRING,
VDSK1 TYPE STRING,
ANSVH TYPE STRING,
ORGEH TYPE STRING,
STELL TYPE STRING,
ZTERF TYPE STRING,
SCHKZ TYPE STRING,
EMPCT TYPE STRING,
BSGRD TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
ARBID TYPE STRING,
OBJID TYPE STRING,
SHORT TYPE STRING,
PERNR TYPE STRING,
CTTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRUVC_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_PRUVC_STR-STAT1 sy-vline 
WA_PRUVC_STR-STAT2 sy-vline 
WA_PRUVC_STR-STAT3 sy-vline 
WA_PRUVC_STR-AKTIVJN sy-vline 
WA_PRUVC_STR-BUKRS sy-vline 
WA_PRUVC_STR-WERKS sy-vline 
WA_PRUVC_STR-BTRTL sy-vline 
WA_PRUVC_STR-KOSTL sy-vline 
WA_PRUVC_STR-PERSG sy-vline 
WA_PRUVC_STR-PERSK sy-vline 
WA_PRUVC_STR-ABART sy-vline 
WA_PRUVC_STR-PLANS sy-vline 
WA_PRUVC_STR-GSBER sy-vline 
WA_PRUVC_STR-VDSK1 sy-vline 
WA_PRUVC_STR-ANSVH sy-vline 
WA_PRUVC_STR-ORGEH sy-vline 
WA_PRUVC_STR-STELL sy-vline 
WA_PRUVC_STR-ZTERF sy-vline 
WA_PRUVC_STR-SCHKZ sy-vline 
WA_PRUVC_STR-EMPCT sy-vline 
WA_PRUVC_STR-BSGRD sy-vline 
WA_PRUVC_STR-TRFAR sy-vline 
WA_PRUVC_STR-TRFGB sy-vline 
WA_PRUVC_STR-TRFGR sy-vline 
WA_PRUVC_STR-TRFST sy-vline 
WA_PRUVC_STR-ARBID sy-vline 
WA_PRUVC_STR-OBJID sy-vline 
WA_PRUVC_STR-SHORT sy-vline 
WA_PRUVC_STR-PERNR sy-vline 
WA_PRUVC_STR-CTTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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