ABAP Select data from SAP table P3534 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P3534 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 P3534. 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 P3534 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_P3534 TYPE STANDARD TABLE OF P3534,
      WA_P3534 TYPE P3534,
      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: <P3534> TYPE P3534.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P3534.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P3534
  INTO TABLE IT_P3534.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P3534
*  INTO TABLE @DATA(IT_P35342).
*--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_P3534 INDEX 1 INTO DATA(WA_P35342).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P3534 ASSIGNING <P3534>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P3534>-PERNR = 1.
<P3534>-INFTY = 1.
<P3534>-SUBTY = 1.
<P3534>-OBJPS = 1.
<P3534>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P3534 INTO WA_P3534.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P3534-ENDDA, sy-vline,
  WA_P3534-BEGDA, sy-vline,
  WA_P3534-SEQNR, sy-vline,
  WA_P3534-AEDTM, sy-vline,
  WA_P3534-UNAME, sy-vline,
  WA_P3534-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P3534 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_P3534 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_P3534 INTO WA_P3534.


*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_P3534_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,
ORTYP TYPE STRING,
OPTYP TYPE STRING,
APRUN TYPE STRING,
OPAPD TYPE STRING,
OPRES TYPE STRING,
ORGUN TYPE STRING,
ORGPS TYPE STRING,
RTDAT TYPE STRING,
RTTYP TYPE STRING,
RTCER TYPE STRING,
ISSBY TYPE STRING,
RTAPD TYPE STRING,
RTPNS TYPE STRING,
RPCUR TYPE STRING,
PAYBY TYPE STRING,
GRBRT TYPE STRING,
GRFRT TYPE STRING,
HGPOS TYPE STRING,
DESCR TYPE STRING,
BENTY TYPE STRING,
RTBEN TYPE STRING,
BENDT TYPE STRING,
BENAP TYPE STRING,
SPWRK TYPE STRING,
SPLEN TYPE STRING,
SPZEH TYPE STRING,
ELRES TYPE STRING,
DRTID TYPE STRING,
RELOC TYPE STRING,
REPOS TYPE STRING,
DETDT TYPE STRING,
PLFUN TYPE STRING,
PLCUR TYPE STRING,
WRKUN TYPE STRING,
WRCUR TYPE STRING,
HLAWN TYPE STRING,
HLCUR TYPE STRING,
OTHER TYPE STRING,
OTCUR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P3534_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_P3534_STR-PERNR sy-vline 
WA_P3534_STR-INFTY sy-vline 
WA_P3534_STR-SUBTY sy-vline 
WA_P3534_STR-OBJPS sy-vline 
WA_P3534_STR-SPRPS sy-vline 
WA_P3534_STR-ENDDA sy-vline 
WA_P3534_STR-BEGDA sy-vline 
WA_P3534_STR-SEQNR sy-vline 
WA_P3534_STR-AEDTM sy-vline 
WA_P3534_STR-UNAME sy-vline 
WA_P3534_STR-HISTO sy-vline 
WA_P3534_STR-ITXEX sy-vline 
WA_P3534_STR-REFEX sy-vline 
WA_P3534_STR-ORDEX sy-vline 
WA_P3534_STR-ITBLD sy-vline 
WA_P3534_STR-PREAS sy-vline 
WA_P3534_STR-FLAG1 sy-vline 
WA_P3534_STR-FLAG2 sy-vline 
WA_P3534_STR-FLAG3 sy-vline 
WA_P3534_STR-FLAG4 sy-vline 
WA_P3534_STR-RESE1 sy-vline 
WA_P3534_STR-RESE2 sy-vline 
WA_P3534_STR-GRPVL sy-vline 
WA_P3534_STR-ORTYP sy-vline 
WA_P3534_STR-OPTYP sy-vline 
WA_P3534_STR-APRUN sy-vline 
WA_P3534_STR-OPAPD sy-vline 
WA_P3534_STR-OPRES sy-vline 
WA_P3534_STR-ORGUN sy-vline 
WA_P3534_STR-ORGPS sy-vline 
WA_P3534_STR-RTDAT sy-vline 
WA_P3534_STR-RTTYP sy-vline 
WA_P3534_STR-RTCER sy-vline 
WA_P3534_STR-ISSBY sy-vline 
WA_P3534_STR-RTAPD sy-vline 
WA_P3534_STR-RTPNS sy-vline 
WA_P3534_STR-RPCUR sy-vline 
WA_P3534_STR-PAYBY sy-vline 
WA_P3534_STR-GRBRT sy-vline 
WA_P3534_STR-GRFRT sy-vline 
WA_P3534_STR-HGPOS sy-vline 
WA_P3534_STR-DESCR sy-vline 
WA_P3534_STR-BENTY sy-vline 
WA_P3534_STR-RTBEN sy-vline 
WA_P3534_STR-BENDT sy-vline 
WA_P3534_STR-BENAP sy-vline 
WA_P3534_STR-SPWRK sy-vline 
WA_P3534_STR-SPLEN sy-vline 
WA_P3534_STR-SPZEH sy-vline 
WA_P3534_STR-ELRES sy-vline 
WA_P3534_STR-DRTID sy-vline 
WA_P3534_STR-RELOC sy-vline 
WA_P3534_STR-REPOS sy-vline 
WA_P3534_STR-DETDT sy-vline 
WA_P3534_STR-PLFUN sy-vline 
WA_P3534_STR-PLCUR sy-vline 
WA_P3534_STR-WRKUN sy-vline 
WA_P3534_STR-WRCUR sy-vline 
WA_P3534_STR-HLAWN sy-vline 
WA_P3534_STR-HLCUR sy-vline 
WA_P3534_STR-OTHER sy-vline 
WA_P3534_STR-OTCUR sy-vline      INTO ld_text SEPARATED BY SPACE.

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