ABAP Select data from SAP table P0326 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P0326 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 P0326. 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 P0326 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_P0326 TYPE STANDARD TABLE OF P0326,
      WA_P0326 TYPE P0326,
      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: <P0326> TYPE P0326.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P0326.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P0326
  INTO TABLE IT_P0326.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P0326
*  INTO TABLE @DATA(IT_P03262).
*--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_P0326 INDEX 1 INTO DATA(WA_P03262).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P0326 ASSIGNING <P0326>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P0326>-PERNR = 1.
<P0326>-INFTY = 1.
<P0326>-SUBTY = 1.
<P0326>-OBJPS = 1.
<P0326>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P0326 INTO WA_P0326.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P0326-ENDDA, sy-vline,
  WA_P0326-BEGDA, sy-vline,
  WA_P0326-SEQNR, sy-vline,
  WA_P0326-AEDTM, sy-vline,
  WA_P0326-UNAME, sy-vline,
  WA_P0326-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P0326 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_P0326 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_P0326 INTO WA_P0326.


*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_P0326_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,
ANRVB TYPE STRING,
VSNUM TYPE STRING,
BETRG TYPE STRING,
WAERS TYPE STRING,
KNDEP TYPE STRING,
KGSEP TYPE STRING,
FRWEP TYPE STRING,
GESEP TYPE STRING,
VORDZ TYPE STRING,
VERSJ TYPE STRING,
KZFRB TYPE STRING,
KNZRE TYPE STRING,
LGART TYPE STRING,
HVERS TYPE STRING,
HVBTR TYPE STRING,
HVWAE TYPE STRING,
PABNR TYPE STRING,
NABRE TYPE STRING,
RRBTR TYPE STRING,
RRWAE TYPE STRING,
VAVEP TYPE STRING,
VABEP TYPE STRING,
ZUFAK TYPE STRING,
ENTPK TYPE STRING,
EPVAEHE TYPE STRING,
BTVAEHE TYPE STRING,
CURVAEHE TYPE STRING,
VAAUSKV TYPE STRING,
EPVAGES TYPE STRING,
BTVAGES TYPE STRING,
CURVAGES TYPE STRING,
STARE TYPE STRING,
PABNR_2 TYPE STRING,
TRFGB TYPE STRING,
RENTENARTFAKTOR TYPE STRING,
RENTE_VEP TYPE STRING,
RENTE_BEP TYPE STRING,
BYKK TYPE STRING,
CURBYKK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P0326_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_P0326_STR-PERNR sy-vline 
WA_P0326_STR-INFTY sy-vline 
WA_P0326_STR-SUBTY sy-vline 
WA_P0326_STR-OBJPS sy-vline 
WA_P0326_STR-SPRPS sy-vline 
WA_P0326_STR-ENDDA sy-vline 
WA_P0326_STR-BEGDA sy-vline 
WA_P0326_STR-SEQNR sy-vline 
WA_P0326_STR-AEDTM sy-vline 
WA_P0326_STR-UNAME sy-vline 
WA_P0326_STR-HISTO sy-vline 
WA_P0326_STR-ITXEX sy-vline 
WA_P0326_STR-REFEX sy-vline 
WA_P0326_STR-ORDEX sy-vline 
WA_P0326_STR-ITBLD sy-vline 
WA_P0326_STR-PREAS sy-vline 
WA_P0326_STR-FLAG1 sy-vline 
WA_P0326_STR-FLAG2 sy-vline 
WA_P0326_STR-FLAG3 sy-vline 
WA_P0326_STR-FLAG4 sy-vline 
WA_P0326_STR-RESE1 sy-vline 
WA_P0326_STR-RESE2 sy-vline 
WA_P0326_STR-GRPVL sy-vline 
WA_P0326_STR-ANRVB sy-vline 
WA_P0326_STR-VSNUM sy-vline 
WA_P0326_STR-BETRG sy-vline 
WA_P0326_STR-WAERS sy-vline 
WA_P0326_STR-KNDEP sy-vline 
WA_P0326_STR-KGSEP sy-vline 
WA_P0326_STR-FRWEP sy-vline 
WA_P0326_STR-GESEP sy-vline 
WA_P0326_STR-VORDZ sy-vline 
WA_P0326_STR-VERSJ sy-vline 
WA_P0326_STR-KZFRB sy-vline 
WA_P0326_STR-KNZRE sy-vline 
WA_P0326_STR-LGART sy-vline 
WA_P0326_STR-HVERS sy-vline 
WA_P0326_STR-HVBTR sy-vline 
WA_P0326_STR-HVWAE sy-vline 
WA_P0326_STR-PABNR sy-vline 
WA_P0326_STR-NABRE sy-vline 
WA_P0326_STR-RRBTR sy-vline 
WA_P0326_STR-RRWAE sy-vline 
WA_P0326_STR-VAVEP sy-vline 
WA_P0326_STR-VABEP sy-vline 
WA_P0326_STR-ZUFAK sy-vline 
WA_P0326_STR-ENTPK sy-vline 
WA_P0326_STR-EPVAEHE sy-vline 
WA_P0326_STR-BTVAEHE sy-vline 
WA_P0326_STR-CURVAEHE sy-vline 
WA_P0326_STR-VAAUSKV sy-vline 
WA_P0326_STR-EPVAGES sy-vline 
WA_P0326_STR-BTVAGES sy-vline 
WA_P0326_STR-CURVAGES sy-vline 
WA_P0326_STR-STARE sy-vline 
WA_P0326_STR-PABNR_2 sy-vline 
WA_P0326_STR-TRFGB sy-vline 
WA_P0326_STR-RENTENARTFAKTOR sy-vline 
WA_P0326_STR-RENTE_VEP sy-vline 
WA_P0326_STR-RENTE_BEP sy-vline 
WA_P0326_STR-BYKK sy-vline 
WA_P0326_STR-CURBYKK sy-vline      INTO ld_text SEPARATED BY SPACE.

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