ABAP Select data from SAP table P3003 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P3003 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 P3003. 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 P3003 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_P3003 TYPE STANDARD TABLE OF P3003,
      WA_P3003 TYPE P3003,
      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: <P3003> TYPE P3003.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P3003.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P3003
  INTO TABLE IT_P3003.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P3003
*  INTO TABLE @DATA(IT_P30032).
*--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_P3003 INDEX 1 INTO DATA(WA_P30032).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P3003 ASSIGNING <P3003>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P3003>-MANDT = 1.
<P3003>-PLVAR = 1.
<P3003>-OTYPE = 1.
<P3003>-OBJID = 1.
<P3003>-INFTY = 1.

ENDLOOP.

LOOP AT IT_P3003 INTO WA_P3003.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P3003-SUBTY, sy-vline,
  WA_P3003-ISTAT, sy-vline,
  WA_P3003-PRIOX, sy-vline,
  WA_P3003-BEGDA, sy-vline,
  WA_P3003-ENDDA, sy-vline,
  WA_P3003-VARYF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P3003 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_P3003 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_P3003 INTO WA_P3003.


*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 CUNIT, internal->external for field VGE01
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3003-VGE01
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3003-VGE01.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VGE02
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3003-VGE02
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3003-VGE02.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VGE03
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3003-VGE03
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3003-VGE03.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VGE04
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3003-VGE04
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3003-VGE04.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VGE05
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3003-VGE05
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3003-VGE05.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VGE06
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3003-VGE06
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3003-VGE06.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPDEV, internal->external for field PDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_P3003-PDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3003-PDEST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P3003-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3003-LIFNR.
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_P3003_STR, 
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
ISTAT TYPE STRING,
PRIOX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
VARYF TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
REASN TYPE STRING,
HISTO TYPE STRING,
ITXNR TYPE STRING,
KTSCH TYPE STRING,
KTSCH_REF TYPE STRING,
LOANZ TYPE STRING,
LOANZ_REF TYPE STRING,
LOART TYPE STRING,
LOART_REF TYPE STRING,
LOGRP TYPE STRING,
LOGRP_REF TYPE STRING,
QUALF TYPE STRING,
QUALF_REF TYPE STRING,
RASCH TYPE STRING,
RASCH_REF TYPE STRING,
STEUS TYPE STRING,
STEUS_REF TYPE STRING,
VGE01 TYPE STRING,
VGE02 TYPE STRING,
VGE03 TYPE STRING,
VGE04 TYPE STRING,
VGE05 TYPE STRING,
VGE06 TYPE STRING,
RSANZ TYPE STRING,
RSANZ_REF TYPE STRING,
PDEST TYPE STRING,
SLWID TYPE STRING,
SLWID_REF TYPE STRING,
LIFNR TYPE STRING,
LIFNR_REF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P3003_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_P3003_STR-MANDT sy-vline 
WA_P3003_STR-PLVAR sy-vline 
WA_P3003_STR-OTYPE sy-vline 
WA_P3003_STR-OBJID sy-vline 
WA_P3003_STR-INFTY sy-vline 
WA_P3003_STR-SUBTY sy-vline 
WA_P3003_STR-ISTAT sy-vline 
WA_P3003_STR-PRIOX sy-vline 
WA_P3003_STR-BEGDA sy-vline 
WA_P3003_STR-ENDDA sy-vline 
WA_P3003_STR-VARYF sy-vline 
WA_P3003_STR-SEQNR sy-vline 
WA_P3003_STR-AEDTM sy-vline 
WA_P3003_STR-UNAME sy-vline 
WA_P3003_STR-REASN sy-vline 
WA_P3003_STR-HISTO sy-vline 
WA_P3003_STR-ITXNR sy-vline 
WA_P3003_STR-KTSCH sy-vline 
WA_P3003_STR-KTSCH_REF sy-vline 
WA_P3003_STR-LOANZ sy-vline 
WA_P3003_STR-LOANZ_REF sy-vline 
WA_P3003_STR-LOART sy-vline 
WA_P3003_STR-LOART_REF sy-vline 
WA_P3003_STR-LOGRP sy-vline 
WA_P3003_STR-LOGRP_REF sy-vline 
WA_P3003_STR-QUALF sy-vline 
WA_P3003_STR-QUALF_REF sy-vline 
WA_P3003_STR-RASCH sy-vline 
WA_P3003_STR-RASCH_REF sy-vline 
WA_P3003_STR-STEUS sy-vline 
WA_P3003_STR-STEUS_REF sy-vline 
WA_P3003_STR-VGE01 sy-vline 
WA_P3003_STR-VGE02 sy-vline 
WA_P3003_STR-VGE03 sy-vline 
WA_P3003_STR-VGE04 sy-vline 
WA_P3003_STR-VGE05 sy-vline 
WA_P3003_STR-VGE06 sy-vline 
WA_P3003_STR-RSANZ sy-vline 
WA_P3003_STR-RSANZ_REF sy-vline 
WA_P3003_STR-PDEST sy-vline 
WA_P3003_STR-SLWID sy-vline 
WA_P3003_STR-SLWID_REF sy-vline 
WA_P3003_STR-LIFNR sy-vline 
WA_P3003_STR-LIFNR_REF sy-vline      INTO ld_text SEPARATED BY SPACE.

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