ABAP Select data from SAP table PV045 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PV045 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 PV045. 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 PV045 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_PV045 TYPE STANDARD TABLE OF PV045,
      WA_PV045 TYPE PV045,
      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: <PV045> TYPE PV045.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PV045.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PV045
  INTO TABLE IT_PV045.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PV045
*  INTO TABLE @DATA(IT_PV0452).
*--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_PV045 INDEX 1 INTO DATA(WA_PV0452).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PV045 ASSIGNING <PV045>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PV045>-PERNR = 1.
<PV045>-INFTY = 1.
<PV045>-SUBTY = 1.
<PV045>-OBJPS = 1.
<PV045>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_PV045 INTO WA_PV045.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PV045-ENDDA, sy-vline,
  WA_PV045-BEGDA, sy-vline,
  WA_PV045-SEQNR, sy-vline,
  WA_PV045-AEDTM, sy-vline,
  WA_PV045-UNAME, sy-vline,
  WA_PV045-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PV045 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_PV045 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_PV045 INTO WA_PV045.


*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_PV045_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
DLART TYPE STRING,
EXTDL TYPE STRING,
DATBW TYPE STRING,
DARBT TYPE STRING,
DBTCU TYPE STRING,
DKOND TYPE STRING,
INDIN TYPE STRING,
TILBG TYPE STRING,
ANRTE TYPE STRING,
ANRCU TYPE STRING,
TILBT TYPE STRING,
TILCU TYPE STRING,
DLEND TYPE STRING,
EFFIN TYPE STRING,
STFBI TYPE STRING,
STFCU TYPE STRING,
IND_REFIN TYPE STRING,
REISY TYPE STRING,
REASY TYPE STRING,
LANOA TYPE STRING,
LASYA TYPE STRING,
SRBEG TYPE STRING,
LPDAT TYPE STRING,
IRFIX TYPE STRING,
TAXED TYPE STRING,
BANKL TYPE STRING,
CINSR TYPE STRING,
DINSR TYPE STRING,
ICFIX TYPE STRING,
IREST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PV045_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_PV045_STR-PERNR sy-vline 
WA_PV045_STR-INFTY sy-vline 
WA_PV045_STR-SUBTY sy-vline 
WA_PV045_STR-OBJPS sy-vline 
WA_PV045_STR-SPRPS sy-vline 
WA_PV045_STR-ENDDA sy-vline 
WA_PV045_STR-BEGDA sy-vline 
WA_PV045_STR-SEQNR sy-vline 
WA_PV045_STR-AEDTM sy-vline 
WA_PV045_STR-UNAME sy-vline 
WA_PV045_STR-HISTO sy-vline 
WA_PV045_STR-ITXEX sy-vline 
WA_PV045_STR-REFEX sy-vline 
WA_PV045_STR-ORDEX sy-vline 
WA_PV045_STR-ITBLD sy-vline 
WA_PV045_STR-PREAS sy-vline 
WA_PV045_STR-FLAG1 sy-vline 
WA_PV045_STR-FLAG2 sy-vline 
WA_PV045_STR-FLAG3 sy-vline 
WA_PV045_STR-FLAG4 sy-vline 
WA_PV045_STR-RESE1 sy-vline 
WA_PV045_STR-RESE2 sy-vline 
WA_PV045_STR-GRPVL sy-vline 
WA_PV045_STR-DLART sy-vline 
WA_PV045_STR-EXTDL sy-vline 
WA_PV045_STR-DATBW sy-vline 
WA_PV045_STR-DARBT sy-vline 
WA_PV045_STR-DBTCU sy-vline 
WA_PV045_STR-DKOND sy-vline 
WA_PV045_STR-INDIN sy-vline 
WA_PV045_STR-TILBG sy-vline 
WA_PV045_STR-ANRTE sy-vline 
WA_PV045_STR-ANRCU sy-vline 
WA_PV045_STR-TILBT sy-vline 
WA_PV045_STR-TILCU sy-vline 
WA_PV045_STR-DLEND sy-vline 
WA_PV045_STR-EFFIN sy-vline 
WA_PV045_STR-STFBI sy-vline 
WA_PV045_STR-STFCU sy-vline 
WA_PV045_STR-IND_REFIN sy-vline 
WA_PV045_STR-REISY sy-vline 
WA_PV045_STR-REASY sy-vline 
WA_PV045_STR-LANOA sy-vline 
WA_PV045_STR-LASYA sy-vline 
WA_PV045_STR-SRBEG sy-vline 
WA_PV045_STR-LPDAT sy-vline 
WA_PV045_STR-IRFIX sy-vline 
WA_PV045_STR-TAXED sy-vline 
WA_PV045_STR-BANKL sy-vline 
WA_PV045_STR-CINSR sy-vline 
WA_PV045_STR-DINSR sy-vline 
WA_PV045_STR-ICFIX sy-vline 
WA_PV045_STR-IREST sy-vline      INTO ld_text SEPARATED BY SPACE.

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