ABAP Select data from SAP table PDRVTVFWER into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PDRVTVFWER 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 PDRVTVFWER. 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 PDRVTVFWER 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_PDRVTVFWER TYPE STANDARD TABLE OF PDRVTVFWER,
      WA_PDRVTVFWER TYPE PDRVTVFWER,
      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: <PDRVTVFWER> TYPE PDRVTVFWER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PDRVTVFWER
*  INTO TABLE @DATA(IT_PDRVTVFWER2).
*--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_PDRVTVFWER INDEX 1 INTO DATA(WA_PDRVTVFWER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PDRVTVFWER>-MANDT = 1.
<PDRVTVFWER>-COMPANYCODE = 1.
<PDRVTVFWER>-SECURITYID = 1.
<PDRVTVFWER>-LOTNO = 1.
<PDRVTVFWER>-PRODUCTCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PDRVTVFWER-PRODUCTTYPE, sy-vline,
  WA_PDRVTVFWER-ISSUER, sy-vline,
  WA_PDRVTVFWER-POSITIONCURRENCY, sy-vline,
  WA_PDRVTVFWER-DATELOTPOS, sy-vline,
  WA_PDRVTVFWER-OBJECTNUMBER, sy-vline,
  WA_PDRVTVFWER-SETTLMTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PDRVTVFWER 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_PDRVTVFWER 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_PDRVTVFWER INTO WA_PDRVTVFWER.


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

*Conversion exit ALPHA, internal->external for field ISSUER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PDRVTVFWER-ISSUER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDRVTVFWER-ISSUER.
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_PDRVTVFWER_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
SECURITYID TYPE STRING,
LOTNO TYPE STRING,
PRODUCTCATEGORY TYPE STRING,
PRODUCTTYPE TYPE STRING,
ISSUER TYPE STRING,
POSITIONCURRENCY TYPE STRING,
DATELOTPOS TYPE STRING,
OBJECTNUMBER TYPE STRING,
SETTLMTDATE TYPE STRING,
POSACCOUNT TYPE STRING,
LOTID TYPE STRING,
BUSTRANSID TYPE STRING,
FLAGLONGSHORT TYPE STRING,
STOCKEXCHANGE TYPE STRING,
GENVALNCLASS TYPE STRING,
CHANGEDON TYPE STRING,
CHANGEDTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PDRVTVFWER_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_PDRVTVFWER_STR-MANDT sy-vline 
WA_PDRVTVFWER_STR-COMPANYCODE sy-vline 
WA_PDRVTVFWER_STR-SECURITYID sy-vline 
WA_PDRVTVFWER_STR-LOTNO sy-vline 
WA_PDRVTVFWER_STR-PRODUCTCATEGORY sy-vline 
WA_PDRVTVFWER_STR-PRODUCTTYPE sy-vline 
WA_PDRVTVFWER_STR-ISSUER sy-vline 
WA_PDRVTVFWER_STR-POSITIONCURRENCY sy-vline 
WA_PDRVTVFWER_STR-DATELOTPOS sy-vline 
WA_PDRVTVFWER_STR-OBJECTNUMBER sy-vline 
WA_PDRVTVFWER_STR-SETTLMTDATE sy-vline 
WA_PDRVTVFWER_STR-POSACCOUNT sy-vline 
WA_PDRVTVFWER_STR-LOTID sy-vline 
WA_PDRVTVFWER_STR-BUSTRANSID sy-vline 
WA_PDRVTVFWER_STR-FLAGLONGSHORT sy-vline 
WA_PDRVTVFWER_STR-STOCKEXCHANGE sy-vline 
WA_PDRVTVFWER_STR-GENVALNCLASS sy-vline 
WA_PDRVTVFWER_STR-CHANGEDON sy-vline 
WA_PDRVTVFWER_STR-CHANGEDTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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