ABAP Select data from SAP table PEX2000REF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PEX2000REF 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 PEX2000REF. 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 PEX2000REF 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_PEX2000REF TYPE STANDARD TABLE OF PEX2000REF,
      WA_PEX2000REF TYPE PEX2000REF,
      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: <PEX2000REF> TYPE PEX2000REF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PEX2000REF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PEX2000REF
  INTO TABLE IT_PEX2000REF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PEX2000REF
*  INTO TABLE @DATA(IT_PEX2000REF2).
*--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_PEX2000REF INDEX 1 INTO DATA(WA_PEX2000REF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PEX2000REF ASSIGNING <PEX2000REF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PEX2000REF>-MANDT = 1.
<PEX2000REF>-LOGSYS = 1.
<PEX2000REF>-AWTYP = 1.
<PEX2000REF>-AWKEY = 1.
<PEX2000REF>-STOKZ = 1.

ENDLOOP.

LOOP AT IT_PEX2000REF INTO WA_PEX2000REF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PEX2000REF-CUSTFLD, sy-vline,
  WA_PEX2000REF-PERNR, sy-vline,
  WA_PEX2000REF-BEGDA, sy-vline,
  WA_PEX2000REF-ENDDA, sy-vline,
  WA_PEX2000REF-SPRPS, sy-vline,
  WA_PEX2000REF-AWART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PEX2000REF 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_PEX2000REF 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_PEX2000REF INTO WA_PEX2000REF.


*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 ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PS_POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-PS_POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-PS_POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-NPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-NPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRZNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-PRZNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-PRZNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LSTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-LSTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-LSTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SKOST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-SKOST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-SKOST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SGRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-SGRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-SGRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_PEX2000REF-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEX2000REF-FIPEX.
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_PEX2000REF_STR, 
MANDT TYPE STRING,
LOGSYS TYPE STRING,
AWTYP TYPE STRING,
AWKEY TYPE STRING,
STOKZ TYPE STRING,
CUSTFLD TYPE STRING,
PERNR TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SPRPS TYPE STRING,
AWART TYPE STRING,
BEGUZ TYPE STRING,
ENDUZ TYPE STRING,
STDAZ TYPE STRING,
VTKEN TYPE STRING,
ALLDF TYPE STRING,
VERSL TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
PRAKN TYPE STRING,
PRAKZ TYPE STRING,
OTYPE TYPE STRING,
PLANS TYPE STRING,
AUFKZ TYPE STRING,
BWGRL TYPE STRING,
WAERS TYPE STRING,
WTART TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
LTLST TYPE STRING,
AUFNR TYPE STRING,
KSTRG TYPE STRING,
PS_POSID TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PRZNR TYPE STRING,
FISTL TYPE STRING,
FIPOS TYPE STRING,
GEBER TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
LSTNR TYPE STRING,
STELL TYPE STRING,
SBUKR TYPE STRING,
SGSBR TYPE STRING,
SKOST TYPE STRING,
LSTAR TYPE STRING,
SGTXT TYPE STRING,
DART TYPE STRING,
UDART TYPE STRING,
FKBER TYPE STRING,
GRANT_NBR TYPE STRING,
SGEBER TYPE STRING,
SFKBER TYPE STRING,
SGRANT_NBR TYPE STRING,
FIPEX TYPE STRING,
BUDGET_PD TYPE STRING,
SBUDGET_PD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PEX2000REF_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_PEX2000REF_STR-MANDT sy-vline 
WA_PEX2000REF_STR-LOGSYS sy-vline 
WA_PEX2000REF_STR-AWTYP sy-vline 
WA_PEX2000REF_STR-AWKEY sy-vline 
WA_PEX2000REF_STR-STOKZ sy-vline 
WA_PEX2000REF_STR-CUSTFLD sy-vline 
WA_PEX2000REF_STR-PERNR sy-vline 
WA_PEX2000REF_STR-BEGDA sy-vline 
WA_PEX2000REF_STR-ENDDA sy-vline 
WA_PEX2000REF_STR-SPRPS sy-vline 
WA_PEX2000REF_STR-AWART sy-vline 
WA_PEX2000REF_STR-BEGUZ sy-vline 
WA_PEX2000REF_STR-ENDUZ sy-vline 
WA_PEX2000REF_STR-STDAZ sy-vline 
WA_PEX2000REF_STR-VTKEN sy-vline 
WA_PEX2000REF_STR-ALLDF sy-vline 
WA_PEX2000REF_STR-VERSL sy-vline 
WA_PEX2000REF_STR-TRFGR sy-vline 
WA_PEX2000REF_STR-TRFST sy-vline 
WA_PEX2000REF_STR-PRAKN sy-vline 
WA_PEX2000REF_STR-PRAKZ sy-vline 
WA_PEX2000REF_STR-OTYPE sy-vline 
WA_PEX2000REF_STR-PLANS sy-vline 
WA_PEX2000REF_STR-AUFKZ sy-vline 
WA_PEX2000REF_STR-BWGRL sy-vline 
WA_PEX2000REF_STR-WAERS sy-vline 
WA_PEX2000REF_STR-WTART sy-vline 
WA_PEX2000REF_STR-BUKRS sy-vline 
WA_PEX2000REF_STR-GSBER sy-vline 
WA_PEX2000REF_STR-KOSTL sy-vline 
WA_PEX2000REF_STR-LTLST sy-vline 
WA_PEX2000REF_STR-AUFNR sy-vline 
WA_PEX2000REF_STR-KSTRG sy-vline 
WA_PEX2000REF_STR-PS_POSID sy-vline 
WA_PEX2000REF_STR-NPLNR sy-vline 
WA_PEX2000REF_STR-VORNR sy-vline 
WA_PEX2000REF_STR-KDAUF sy-vline 
WA_PEX2000REF_STR-KDPOS sy-vline 
WA_PEX2000REF_STR-PRZNR sy-vline 
WA_PEX2000REF_STR-FISTL sy-vline 
WA_PEX2000REF_STR-FIPOS sy-vline 
WA_PEX2000REF_STR-GEBER sy-vline 
WA_PEX2000REF_STR-EBELN sy-vline 
WA_PEX2000REF_STR-EBELP sy-vline 
WA_PEX2000REF_STR-LSTNR sy-vline 
WA_PEX2000REF_STR-STELL sy-vline 
WA_PEX2000REF_STR-SBUKR sy-vline 
WA_PEX2000REF_STR-SGSBR sy-vline 
WA_PEX2000REF_STR-SKOST sy-vline 
WA_PEX2000REF_STR-LSTAR sy-vline 
WA_PEX2000REF_STR-SGTXT sy-vline 
WA_PEX2000REF_STR-DART sy-vline 
WA_PEX2000REF_STR-UDART sy-vline 
WA_PEX2000REF_STR-FKBER sy-vline 
WA_PEX2000REF_STR-GRANT_NBR sy-vline 
WA_PEX2000REF_STR-SGEBER sy-vline 
WA_PEX2000REF_STR-SFKBER sy-vline 
WA_PEX2000REF_STR-SGRANT_NBR sy-vline 
WA_PEX2000REF_STR-FIPEX sy-vline 
WA_PEX2000REF_STR-BUDGET_PD sy-vline 
WA_PEX2000REF_STR-SBUDGET_PD sy-vline      INTO ld_text SEPARATED BY SPACE.

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