ABAP Select data from SAP table OI0_IFEKPOOAITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OI0_IFEKPOOAITEM 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 OI0_IFEKPOOAITEM. 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 OI0_IFEKPOOAITEM 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_OI0_IFEKPOOAITEM TYPE STANDARD TABLE OF OI0_IFEKPOOAITEM,
      WA_OI0_IFEKPOOAITEM TYPE OI0_IFEKPOOAITEM,
      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: <OI0_IFEKPOOAITEM> TYPE OI0_IFEKPOOAITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OI0_IFEKPOOAITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OI0_IFEKPOOAITEM
  INTO TABLE IT_OI0_IFEKPOOAITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OI0_IFEKPOOAITEM
*  INTO TABLE @DATA(IT_OI0_IFEKPOOAITEM2).
*--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_OI0_IFEKPOOAITEM INDEX 1 INTO DATA(WA_OI0_IFEKPOOAITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OI0_IFEKPOOAITEM ASSIGNING <OI0_IFEKPOOAITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OI0_IFEKPOOAITEM>-EBELP = 1.
<OI0_IFEKPOOAITEM>-LOEKZ = 1.
<OI0_IFEKPOOAITEM>-TXZ01 = 1.
<OI0_IFEKPOOAITEM>-MATNR = 1.
<OI0_IFEKPOOAITEM>-EMATN = 1.

ENDLOOP.

LOOP AT IT_OI0_IFEKPOOAITEM INTO WA_OI0_IFEKPOOAITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OI0_IFEKPOOAITEM-WERKS, sy-vline,
  WA_OI0_IFEKPOOAITEM-LGORT, sy-vline,
  WA_OI0_IFEKPOOAITEM-BEDNR, sy-vline,
  WA_OI0_IFEKPOOAITEM-MATKL, sy-vline,
  WA_OI0_IFEKPOOAITEM-INFNR, sy-vline,
  WA_OI0_IFEKPOOAITEM-IDNLF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OI0_IFEKPOOAITEM 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_OI0_IFEKPOOAITEM 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_OI0_IFEKPOOAITEM INTO WA_OI0_IFEKPOOAITEM.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field EMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-EMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-EMATN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-INFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-INFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BPRME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-BPRME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-BPRME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-KONNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-KONNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field REVLV
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-REVLV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-REVLV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOLIF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-KOLIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-KOLIF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EMLIF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-EMLIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-EMLIF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AKTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-AKTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-AKTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PUNEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-PUNEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-PUNEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field SAISJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-SAISJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-SAISJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-ANFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-ANFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BANFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-BANFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-BANFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFBS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OI0_IFEKPOOAITEM-REFBS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OI0_IFEKPOOAITEM-REFBS.
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_OI0_IFEKPOOAITEM_STR, 
EBELP TYPE STRING,
LOEKZ TYPE STRING,
TXZ01 TYPE STRING,
MATNR TYPE STRING,
EMATN TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
BEDNR TYPE STRING,
MATKL TYPE STRING,
INFNR TYPE STRING,
IDNLF TYPE STRING,
KTMNG TYPE STRING,
MEINS TYPE STRING,
BPRME TYPE STRING,
BPUMZ TYPE STRING,
BPUMN TYPE STRING,
NETPR TYPE STRING,
PEINH TYPE STRING,
WEBAZ TYPE STRING,
MWSKZ TYPE STRING,
BONUS TYPE STRING,
INSMK TYPE STRING,
SPINF TYPE STRING,
PRSDR TYPE STRING,
SCHPR TYPE STRING,
MAHN1 TYPE STRING,
MAHN2 TYPE STRING,
MAHN3 TYPE STRING,
UEBTO TYPE STRING,
UEBTK TYPE STRING,
UNTTO TYPE STRING,
BWTAR TYPE STRING,
PSTYP TYPE STRING,
KNTTP TYPE STRING,
VRTKZ TYPE STRING,
TWRKZ TYPE STRING,
WEPOS TYPE STRING,
WEUNB TYPE STRING,
REPOS TYPE STRING,
WEBRE TYPE STRING,
KZABS TYPE STRING,
LABNR TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,
EVERS TYPE STRING,
KUNNR TYPE STRING,
EKKOL TYPE STRING,
SKTOF TYPE STRING,
PLIFZ TYPE STRING,
NTGEW TYPE STRING,
GEWEI TYPE STRING,
TXJCD TYPE STRING,
SSQSS TYPE STRING,
BSTAE TYPE STRING,
REVLV TYPE STRING,
GEBER TYPE STRING,
FISTL TYPE STRING,
FIPOS TYPE STRING,
MEPRF TYPE STRING,
PRDAT TYPE STRING,
BRGEW TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
KOLIF TYPE STRING,
LTSNR TYPE STRING,
UEBPO TYPE STRING,
LEWED TYPE STRING,
EMLIF TYPE STRING,
LBLKZ TYPE STRING,
KANBA TYPE STRING,
XERSY TYPE STRING,
AKTNR TYPE STRING,
ANZPU TYPE STRING,
PUNEI TYPE STRING,
SAISO TYPE STRING,
SAISJ TYPE STRING,
EBON2 TYPE STRING,
EBON3 TYPE STRING,
EBONF TYPE STRING,
MHDRZ TYPE STRING,
ANFNR TYPE STRING,
ANFPS TYPE STRING,
BANFN TYPE STRING,
BNFPO TYPE STRING,
REFBS TYPE STRING,
REFPS TYPE STRING,
UPTYP TYPE STRING,
RETPO TYPE STRING,
AUREL TYPE STRING,
BSGRU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OI0_IFEKPOOAITEM_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_OI0_IFEKPOOAITEM_STR-EBELP sy-vline 
WA_OI0_IFEKPOOAITEM_STR-LOEKZ sy-vline 
WA_OI0_IFEKPOOAITEM_STR-TXZ01 sy-vline 
WA_OI0_IFEKPOOAITEM_STR-MATNR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-EMATN sy-vline 
WA_OI0_IFEKPOOAITEM_STR-WERKS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-LGORT sy-vline 
WA_OI0_IFEKPOOAITEM_STR-BEDNR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-MATKL sy-vline 
WA_OI0_IFEKPOOAITEM_STR-INFNR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-IDNLF sy-vline 
WA_OI0_IFEKPOOAITEM_STR-KTMNG sy-vline 
WA_OI0_IFEKPOOAITEM_STR-MEINS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-BPRME sy-vline 
WA_OI0_IFEKPOOAITEM_STR-BPUMZ sy-vline 
WA_OI0_IFEKPOOAITEM_STR-BPUMN sy-vline 
WA_OI0_IFEKPOOAITEM_STR-NETPR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-PEINH sy-vline 
WA_OI0_IFEKPOOAITEM_STR-WEBAZ sy-vline 
WA_OI0_IFEKPOOAITEM_STR-MWSKZ sy-vline 
WA_OI0_IFEKPOOAITEM_STR-BONUS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-INSMK sy-vline 
WA_OI0_IFEKPOOAITEM_STR-SPINF sy-vline 
WA_OI0_IFEKPOOAITEM_STR-PRSDR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-SCHPR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-MAHN1 sy-vline 
WA_OI0_IFEKPOOAITEM_STR-MAHN2 sy-vline 
WA_OI0_IFEKPOOAITEM_STR-MAHN3 sy-vline 
WA_OI0_IFEKPOOAITEM_STR-UEBTO sy-vline 
WA_OI0_IFEKPOOAITEM_STR-UEBTK sy-vline 
WA_OI0_IFEKPOOAITEM_STR-UNTTO sy-vline 
WA_OI0_IFEKPOOAITEM_STR-BWTAR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-PSTYP sy-vline 
WA_OI0_IFEKPOOAITEM_STR-KNTTP sy-vline 
WA_OI0_IFEKPOOAITEM_STR-VRTKZ sy-vline 
WA_OI0_IFEKPOOAITEM_STR-TWRKZ sy-vline 
WA_OI0_IFEKPOOAITEM_STR-WEPOS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-WEUNB sy-vline 
WA_OI0_IFEKPOOAITEM_STR-REPOS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-WEBRE sy-vline 
WA_OI0_IFEKPOOAITEM_STR-KZABS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-LABNR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-KONNR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-KTPNR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-EVERS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-KUNNR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-EKKOL sy-vline 
WA_OI0_IFEKPOOAITEM_STR-SKTOF sy-vline 
WA_OI0_IFEKPOOAITEM_STR-PLIFZ sy-vline 
WA_OI0_IFEKPOOAITEM_STR-NTGEW sy-vline 
WA_OI0_IFEKPOOAITEM_STR-GEWEI sy-vline 
WA_OI0_IFEKPOOAITEM_STR-TXJCD sy-vline 
WA_OI0_IFEKPOOAITEM_STR-SSQSS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-BSTAE sy-vline 
WA_OI0_IFEKPOOAITEM_STR-REVLV sy-vline 
WA_OI0_IFEKPOOAITEM_STR-GEBER sy-vline 
WA_OI0_IFEKPOOAITEM_STR-FISTL sy-vline 
WA_OI0_IFEKPOOAITEM_STR-FIPOS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-MEPRF sy-vline 
WA_OI0_IFEKPOOAITEM_STR-PRDAT sy-vline 
WA_OI0_IFEKPOOAITEM_STR-BRGEW sy-vline 
WA_OI0_IFEKPOOAITEM_STR-VOLUM sy-vline 
WA_OI0_IFEKPOOAITEM_STR-VOLEH sy-vline 
WA_OI0_IFEKPOOAITEM_STR-INCO1 sy-vline 
WA_OI0_IFEKPOOAITEM_STR-INCO2 sy-vline 
WA_OI0_IFEKPOOAITEM_STR-KOLIF sy-vline 
WA_OI0_IFEKPOOAITEM_STR-LTSNR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-UEBPO sy-vline 
WA_OI0_IFEKPOOAITEM_STR-LEWED sy-vline 
WA_OI0_IFEKPOOAITEM_STR-EMLIF sy-vline 
WA_OI0_IFEKPOOAITEM_STR-LBLKZ sy-vline 
WA_OI0_IFEKPOOAITEM_STR-KANBA sy-vline 
WA_OI0_IFEKPOOAITEM_STR-XERSY sy-vline 
WA_OI0_IFEKPOOAITEM_STR-AKTNR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-ANZPU sy-vline 
WA_OI0_IFEKPOOAITEM_STR-PUNEI sy-vline 
WA_OI0_IFEKPOOAITEM_STR-SAISO sy-vline 
WA_OI0_IFEKPOOAITEM_STR-SAISJ sy-vline 
WA_OI0_IFEKPOOAITEM_STR-EBON2 sy-vline 
WA_OI0_IFEKPOOAITEM_STR-EBON3 sy-vline 
WA_OI0_IFEKPOOAITEM_STR-EBONF sy-vline 
WA_OI0_IFEKPOOAITEM_STR-MHDRZ sy-vline 
WA_OI0_IFEKPOOAITEM_STR-ANFNR sy-vline 
WA_OI0_IFEKPOOAITEM_STR-ANFPS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-BANFN sy-vline 
WA_OI0_IFEKPOOAITEM_STR-BNFPO sy-vline 
WA_OI0_IFEKPOOAITEM_STR-REFBS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-REFPS sy-vline 
WA_OI0_IFEKPOOAITEM_STR-UPTYP sy-vline 
WA_OI0_IFEKPOOAITEM_STR-RETPO sy-vline 
WA_OI0_IFEKPOOAITEM_STR-AUREL sy-vline 
WA_OI0_IFEKPOOAITEM_STR-BSGRU sy-vline      INTO ld_text SEPARATED BY SPACE.

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