ABAP Select data from SAP table PB3304 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PB3304 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 PB3304. 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 PB3304 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_PB3304 TYPE STANDARD TABLE OF PB3304,
      WA_PB3304 TYPE PB3304,
      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: <PB3304> TYPE PB3304.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PB3304.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PB3304
  INTO TABLE IT_PB3304.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PB3304
*  INTO TABLE @DATA(IT_PB33042).
*--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_PB3304 INDEX 1 INTO DATA(WA_PB33042).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PB3304 ASSIGNING <PB3304>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PB3304>-MANDT = 1.
<PB3304>-PERNR = 1.
<PB3304>-SUBTY = 1.
<PB3304>-OBJPS = 1.
<PB3304>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_PB3304 INTO WA_PB3304.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PB3304-ENDDA, sy-vline,
  WA_PB3304-BEGDA, sy-vline,
  WA_PB3304-SEQNR, sy-vline,
  WA_PB3304-AEDTM, sy-vline,
  WA_PB3304-UNAME, sy-vline,
  WA_PB3304-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PB3304 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_PB3304 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_PB3304 INTO WA_PB3304.


*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_PB3304_STR, 
MANDT TYPE STRING,
PERNR 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,
PSPRT TYPE STRING,
PSISS TYPE STRING,
PSEXP TYPE STRING,
VISAN TYPE STRING,
VSISS TYPE STRING,
VIEXP TYPE STRING,
IDNUM TYPE STRING,
IDISS TYPE STRING,
IDEXP TYPE STRING,
DOCT1 TYPE STRING,
DONR1 TYPE STRING,
DOIS1 TYPE STRING,
DOEX1 TYPE STRING,
DOCT2 TYPE STRING,
DONR2 TYPE STRING,
DOIS2 TYPE STRING,
DOEX2 TYPE STRING,
DOCT3 TYPE STRING,
DONR3 TYPE STRING,
DOIS3 TYPE STRING,
DOEX3 TYPE STRING,
DOCT4 TYPE STRING,
DONR4 TYPE STRING,
DOIS4 TYPE STRING,
DOEX4 TYPE STRING,
DOCT5 TYPE STRING,
DONR5 TYPE STRING,
DOIS5 TYPE STRING,
DOEX5 TYPE STRING,
DOCT6 TYPE STRING,
DONR6 TYPE STRING,
DOIS6 TYPE STRING,
DOEX6 TYPE STRING,
DOCT7 TYPE STRING,
DONR7 TYPE STRING,
DOIS7 TYPE STRING,
DOEX7 TYPE STRING,
DOCT8 TYPE STRING,
DONR8 TYPE STRING,
DOIS8 TYPE STRING,
DOEX8 TYPE STRING,
CYETD TYPE STRING,
EMPLM TYPE STRING,
EMPLR TYPE STRING,
EMPDT TYPE STRING,
ACCEN TYPE STRING,
LPAPD TYPE STRING,
LEGNO TYPE STRING,
KTART TYPE STRING,
ARFNM TYPE STRING,
ARSNM TYPE STRING,
ARTNM TYPE STRING,
ARLNM TYPE STRING,
ACDDG TYPE STRING,
SPECL TYPE STRING,
JOBNM TYPE STRING,
COMTY TYPE STRING,
SPOID TYPE STRING,
UNDEP TYPE STRING,
DPLND TYPE STRING,
CGRAD TYPE STRING,
SCHUID TYPE STRING,
COTRA TYPE STRING,
SBART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PB3304_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_PB3304_STR-MANDT sy-vline 
WA_PB3304_STR-PERNR sy-vline 
WA_PB3304_STR-SUBTY sy-vline 
WA_PB3304_STR-OBJPS sy-vline 
WA_PB3304_STR-SPRPS sy-vline 
WA_PB3304_STR-ENDDA sy-vline 
WA_PB3304_STR-BEGDA sy-vline 
WA_PB3304_STR-SEQNR sy-vline 
WA_PB3304_STR-AEDTM sy-vline 
WA_PB3304_STR-UNAME sy-vline 
WA_PB3304_STR-HISTO sy-vline 
WA_PB3304_STR-ITXEX sy-vline 
WA_PB3304_STR-REFEX sy-vline 
WA_PB3304_STR-ORDEX sy-vline 
WA_PB3304_STR-ITBLD sy-vline 
WA_PB3304_STR-PREAS sy-vline 
WA_PB3304_STR-FLAG1 sy-vline 
WA_PB3304_STR-FLAG2 sy-vline 
WA_PB3304_STR-FLAG3 sy-vline 
WA_PB3304_STR-FLAG4 sy-vline 
WA_PB3304_STR-RESE1 sy-vline 
WA_PB3304_STR-RESE2 sy-vline 
WA_PB3304_STR-GRPVL sy-vline 
WA_PB3304_STR-PSPRT sy-vline 
WA_PB3304_STR-PSISS sy-vline 
WA_PB3304_STR-PSEXP sy-vline 
WA_PB3304_STR-VISAN sy-vline 
WA_PB3304_STR-VSISS sy-vline 
WA_PB3304_STR-VIEXP sy-vline 
WA_PB3304_STR-IDNUM sy-vline 
WA_PB3304_STR-IDISS sy-vline 
WA_PB3304_STR-IDEXP sy-vline 
WA_PB3304_STR-DOCT1 sy-vline 
WA_PB3304_STR-DONR1 sy-vline 
WA_PB3304_STR-DOIS1 sy-vline 
WA_PB3304_STR-DOEX1 sy-vline 
WA_PB3304_STR-DOCT2 sy-vline 
WA_PB3304_STR-DONR2 sy-vline 
WA_PB3304_STR-DOIS2 sy-vline 
WA_PB3304_STR-DOEX2 sy-vline 
WA_PB3304_STR-DOCT3 sy-vline 
WA_PB3304_STR-DONR3 sy-vline 
WA_PB3304_STR-DOIS3 sy-vline 
WA_PB3304_STR-DOEX3 sy-vline 
WA_PB3304_STR-DOCT4 sy-vline 
WA_PB3304_STR-DONR4 sy-vline 
WA_PB3304_STR-DOIS4 sy-vline 
WA_PB3304_STR-DOEX4 sy-vline 
WA_PB3304_STR-DOCT5 sy-vline 
WA_PB3304_STR-DONR5 sy-vline 
WA_PB3304_STR-DOIS5 sy-vline 
WA_PB3304_STR-DOEX5 sy-vline 
WA_PB3304_STR-DOCT6 sy-vline 
WA_PB3304_STR-DONR6 sy-vline 
WA_PB3304_STR-DOIS6 sy-vline 
WA_PB3304_STR-DOEX6 sy-vline 
WA_PB3304_STR-DOCT7 sy-vline 
WA_PB3304_STR-DONR7 sy-vline 
WA_PB3304_STR-DOIS7 sy-vline 
WA_PB3304_STR-DOEX7 sy-vline 
WA_PB3304_STR-DOCT8 sy-vline 
WA_PB3304_STR-DONR8 sy-vline 
WA_PB3304_STR-DOIS8 sy-vline 
WA_PB3304_STR-DOEX8 sy-vline 
WA_PB3304_STR-CYETD sy-vline 
WA_PB3304_STR-EMPLM sy-vline 
WA_PB3304_STR-EMPLR sy-vline 
WA_PB3304_STR-EMPDT sy-vline 
WA_PB3304_STR-ACCEN sy-vline 
WA_PB3304_STR-LPAPD sy-vline 
WA_PB3304_STR-LEGNO sy-vline 
WA_PB3304_STR-KTART sy-vline 
WA_PB3304_STR-ARFNM sy-vline 
WA_PB3304_STR-ARSNM sy-vline 
WA_PB3304_STR-ARTNM sy-vline 
WA_PB3304_STR-ARLNM sy-vline 
WA_PB3304_STR-ACDDG sy-vline 
WA_PB3304_STR-SPECL sy-vline 
WA_PB3304_STR-JOBNM sy-vline 
WA_PB3304_STR-COMTY sy-vline 
WA_PB3304_STR-SPOID sy-vline 
WA_PB3304_STR-UNDEP sy-vline 
WA_PB3304_STR-DPLND sy-vline 
WA_PB3304_STR-CGRAD sy-vline 
WA_PB3304_STR-SCHUID sy-vline 
WA_PB3304_STR-COTRA sy-vline 
WA_PB3304_STR-SBART sy-vline      INTO ld_text SEPARATED BY SPACE.

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