ABAP Select data from SAP table P3000 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P3000 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 P3000. 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 P3000 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_P3000 TYPE STANDARD TABLE OF P3000,
      WA_P3000 TYPE P3000,
      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: <P3000> TYPE P3000.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P3000.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P3000
  INTO TABLE IT_P3000.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P3000
*  INTO TABLE @DATA(IT_P30002).
*--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_P3000 INDEX 1 INTO DATA(WA_P30002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P3000 ASSIGNING <P3000>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P3000>-MANDT = 1.
<P3000>-PLVAR = 1.
<P3000>-OTYPE = 1.
<P3000>-OBJID = 1.
<P3000>-INFTY = 1.

ENDLOOP.

LOOP AT IT_P3000 INTO WA_P3000.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P3000-SUBTY, sy-vline,
  WA_P3000-ISTAT, sy-vline,
  WA_P3000-PRIOX, sy-vline,
  WA_P3000-BEGDA, sy-vline,
  WA_P3000-ENDDA, sy-vline,
  WA_P3000-VARYF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P3000 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_P3000 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_P3000 INTO WA_P3000.


*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 PARU1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3000-PARU1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3000-PARU1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3000-PARU2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3000-PARU2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU3
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3000-PARU3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3000-PARU3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU4
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3000-PARU4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3000-PARU4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU5
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3000-PARU5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3000-PARU5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU6
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_P3000-PARU6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P3000-PARU6.
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_P3000_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,
ARBPL TYPE STRING,
WERKS TYPE STRING,
VERWE TYPE STRING,
LVORM TYPE STRING,
PAR01 TYPE STRING,
PAR02 TYPE STRING,
PAR03 TYPE STRING,
PAR04 TYPE STRING,
PAR05 TYPE STRING,
PAR06 TYPE STRING,
PARU1 TYPE STRING,
PARU2 TYPE STRING,
PARU3 TYPE STRING,
PARU4 TYPE STRING,
PARU5 TYPE STRING,
PARU6 TYPE STRING,
PARV1 TYPE STRING,
PARV2 TYPE STRING,
PARV3 TYPE STRING,
PARV4 TYPE STRING,
PARV5 TYPE STRING,
PARV6 TYPE STRING,
PLANV TYPE STRING,
STAND TYPE STRING,
VERAN TYPE STRING,
VGWTS TYPE STRING,
VGM01 TYPE STRING,
VGM02 TYPE STRING,
VGM03 TYPE STRING,
VGM04 TYPE STRING,
VGM05 TYPE STRING,
VGM06 TYPE STRING,
XDEFA TYPE STRING,
XKOST TYPE STRING,
XSPRR TYPE STRING,
XTERM TYPE STRING,
ZGR01 TYPE STRING,
ZGR02 TYPE STRING,
ZGR03 TYPE STRING,
ZGR04 TYPE STRING,
ZGR05 TYPE STRING,
ZGR06 TYPE STRING,
ZGR01_REF TYPE STRING,
ZGR02_REF TYPE STRING,
ZGR03_REF TYPE STRING,
ZGR04_REF TYPE STRING,
ZGR05_REF TYPE STRING,
ZGR06_REF TYPE STRING,
PRVBE TYPE STRING,
SUBSYS TYPE STRING,
BDEGR TYPE STRING,
RGEKZ TYPE STRING,
BDEFLG TYPE STRING,
STOBJ TYPE STRING,
RESGR TYPE STRING,
LGORT_RES TYPE STRING,
MIXMAT TYPE STRING,
ISTBED_KZ TYPE STRING,
PPSKZ TYPE STRING,
SRTYPE TYPE STRING,
SNTYPE TYPE STRING,
S_LABOR_TRACK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P3000_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_P3000_STR-MANDT sy-vline 
WA_P3000_STR-PLVAR sy-vline 
WA_P3000_STR-OTYPE sy-vline 
WA_P3000_STR-OBJID sy-vline 
WA_P3000_STR-INFTY sy-vline 
WA_P3000_STR-SUBTY sy-vline 
WA_P3000_STR-ISTAT sy-vline 
WA_P3000_STR-PRIOX sy-vline 
WA_P3000_STR-BEGDA sy-vline 
WA_P3000_STR-ENDDA sy-vline 
WA_P3000_STR-VARYF sy-vline 
WA_P3000_STR-SEQNR sy-vline 
WA_P3000_STR-AEDTM sy-vline 
WA_P3000_STR-UNAME sy-vline 
WA_P3000_STR-REASN sy-vline 
WA_P3000_STR-HISTO sy-vline 
WA_P3000_STR-ITXNR sy-vline 
WA_P3000_STR-ARBPL sy-vline 
WA_P3000_STR-WERKS sy-vline 
WA_P3000_STR-VERWE sy-vline 
WA_P3000_STR-LVORM sy-vline 
WA_P3000_STR-PAR01 sy-vline 
WA_P3000_STR-PAR02 sy-vline 
WA_P3000_STR-PAR03 sy-vline 
WA_P3000_STR-PAR04 sy-vline 
WA_P3000_STR-PAR05 sy-vline 
WA_P3000_STR-PAR06 sy-vline 
WA_P3000_STR-PARU1 sy-vline 
WA_P3000_STR-PARU2 sy-vline 
WA_P3000_STR-PARU3 sy-vline 
WA_P3000_STR-PARU4 sy-vline 
WA_P3000_STR-PARU5 sy-vline 
WA_P3000_STR-PARU6 sy-vline 
WA_P3000_STR-PARV1 sy-vline 
WA_P3000_STR-PARV2 sy-vline 
WA_P3000_STR-PARV3 sy-vline 
WA_P3000_STR-PARV4 sy-vline 
WA_P3000_STR-PARV5 sy-vline 
WA_P3000_STR-PARV6 sy-vline 
WA_P3000_STR-PLANV sy-vline 
WA_P3000_STR-STAND sy-vline 
WA_P3000_STR-VERAN sy-vline 
WA_P3000_STR-VGWTS sy-vline 
WA_P3000_STR-VGM01 sy-vline 
WA_P3000_STR-VGM02 sy-vline 
WA_P3000_STR-VGM03 sy-vline 
WA_P3000_STR-VGM04 sy-vline 
WA_P3000_STR-VGM05 sy-vline 
WA_P3000_STR-VGM06 sy-vline 
WA_P3000_STR-XDEFA sy-vline 
WA_P3000_STR-XKOST sy-vline 
WA_P3000_STR-XSPRR sy-vline 
WA_P3000_STR-XTERM sy-vline 
WA_P3000_STR-ZGR01 sy-vline 
WA_P3000_STR-ZGR02 sy-vline 
WA_P3000_STR-ZGR03 sy-vline 
WA_P3000_STR-ZGR04 sy-vline 
WA_P3000_STR-ZGR05 sy-vline 
WA_P3000_STR-ZGR06 sy-vline 
WA_P3000_STR-ZGR01_REF sy-vline 
WA_P3000_STR-ZGR02_REF sy-vline 
WA_P3000_STR-ZGR03_REF sy-vline 
WA_P3000_STR-ZGR04_REF sy-vline 
WA_P3000_STR-ZGR05_REF sy-vline 
WA_P3000_STR-ZGR06_REF sy-vline 
WA_P3000_STR-PRVBE sy-vline 
WA_P3000_STR-SUBSYS sy-vline 
WA_P3000_STR-BDEGR sy-vline 
WA_P3000_STR-RGEKZ sy-vline 
WA_P3000_STR-BDEFLG sy-vline 
WA_P3000_STR-STOBJ sy-vline 
WA_P3000_STR-RESGR sy-vline 
WA_P3000_STR-LGORT_RES sy-vline 
WA_P3000_STR-MIXMAT sy-vline 
WA_P3000_STR-ISTBED_KZ sy-vline 
WA_P3000_STR-PPSKZ sy-vline 
WA_P3000_STR-SRTYPE sy-vline 
WA_P3000_STR-SNTYPE sy-vline 
WA_P3000_STR-S_LABOR_TRACK sy-vline      INTO ld_text SEPARATED BY SPACE.

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