ABAP Select data from SAP table IJVNPIITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IJVNPIITEM
*  INTO TABLE @DATA(IT_IJVNPIITEM2).
*--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_IJVNPIITEM INDEX 1 INTO DATA(WA_IJVNPIITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IJVNPIITEM>-MANDT = 1.
<IJVNPIITEM>-UNIQUEITEMIDENTIFIER = 1.
<IJVNPIITEM>-FISCALYEAR = 1.
<IJVNPIITEM>-POSTINGPERIOD = 1.
<IJVNPIITEM>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IJVNPIITEM-JNTVNTRINTERESTTYPE, sy-vline,
  WA_IJVNPIITEM-JOINTVENTUREPARTNER, sy-vline,
  WA_IJVNPIITEM-JNTVNTRNETPROFITINTRSTGRP, sy-vline,
  WA_IJVNPIITEM-JOINTVENTURE, sy-vline,
  WA_IJVNPIITEM-JOINTVENTUREEQUITYTYPE, sy-vline,
  WA_IJVNPIITEM-JNTOPGAGRMTEQUITYGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IJVNPIITEM 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_IJVNPIITEM 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_IJVNPIITEM INTO WA_IJVNPIITEM.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field JOINTVENTUREBILLINGTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IJVNPIITEM-JOINTVENTUREBILLINGTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IJVNPIITEM-JOINTVENTUREBILLINGTYPE.
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_IJVNPIITEM_STR, 
MANDT TYPE STRING,
UNIQUEITEMIDENTIFIER TYPE STRING,
FISCALYEAR TYPE STRING,
POSTINGPERIOD TYPE STRING,
COMPANYCODE TYPE STRING,
JNTVNTRINTERESTTYPE TYPE STRING,
JOINTVENTUREPARTNER TYPE STRING,
JNTVNTRNETPROFITINTRSTGRP TYPE STRING,
JOINTVENTURE TYPE STRING,
JOINTVENTUREEQUITYTYPE TYPE STRING,
JNTOPGAGRMTEQUITYGRP TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
JNTVNTRACCTGISEXPNORREVN TYPE STRING,
JOINTVENTUREBILLINGTYPE TYPE STRING,
JVANETPRFTGRPPYOUTPCT TYPE STRING,
JNTVNTRPAYISSTPPD TYPE STRING,
PYOUTAMTINCOCODECRCY TYPE STRING,
STARTINGBALANCEAMTINCOCODECRCY TYPE STRING,
STARTINGBALANCEAMTINGLOBALCRCY TYPE STRING,
STRTGBALAMTINFREEDFNDCRCY1 TYPE STRING,
STRTGBALAMTINFREEDFNDCRCY2 TYPE STRING,
STRTGBALAMTINFREEDFNDCRCY3 TYPE STRING,
STRTGBALAMTINFREEDFNDCRCY4 TYPE STRING,
STRTGBALAMTINFREEDFNDCRCY5 TYPE STRING,
STRTGBALAMTINFREEDFNDCRCY6 TYPE STRING,
STRTGBALAMTINFREEDFNDCRCY7 TYPE STRING,
STRTGBALAMTINFREEDFNDCRCY8 TYPE STRING,
CURPERDAMTINCCRCY TYPE STRING,
CURPERDAMTINGCRCY TYPE STRING,
CURPERDAMTINFDCRCY1 TYPE STRING,
CURPERDAMTINFDCRCY2 TYPE STRING,
CURPERDAMTINFDCRCY3 TYPE STRING,
CURPERDAMTINFDCRCY4 TYPE STRING,
CURPERDAMTINFDCRCY5 TYPE STRING,
CURPERDAMTINFDCRCY6 TYPE STRING,
CURPERDAMTINFDCRCY7 TYPE STRING,
CURPERDAMTINFDCRCY8 TYPE STRING,
ENDINGBALANCEAMTINCOCODECRCY TYPE STRING,
ENDINGBALANCEAMTINGLOBALCRCY TYPE STRING,
ENDINGBALAMTINFREEDFNDCRCY1 TYPE STRING,
ENDINGBALAMTINFREEDFNDCRCY2 TYPE STRING,
ENDINGBALAMTINFREEDFNDCRCY3 TYPE STRING,
ENDINGBALAMTINFREEDFNDCRCY4 TYPE STRING,
ENDINGBALAMTINFREEDFNDCRCY5 TYPE STRING,
ENDINGBALAMTINFREEDFNDCRCY6 TYPE STRING,
ENDINGBALAMTINFREEDFNDCRCY7 TYPE STRING,
ENDINGBALAMTINFREEDFNDCRCY8 TYPE STRING,
JVAENDBALINCOCODECRCYWITHPYOUT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IJVNPIITEM_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_IJVNPIITEM_STR-MANDT sy-vline 
WA_IJVNPIITEM_STR-UNIQUEITEMIDENTIFIER sy-vline 
WA_IJVNPIITEM_STR-FISCALYEAR sy-vline 
WA_IJVNPIITEM_STR-POSTINGPERIOD sy-vline 
WA_IJVNPIITEM_STR-COMPANYCODE sy-vline 
WA_IJVNPIITEM_STR-JNTVNTRINTERESTTYPE sy-vline 
WA_IJVNPIITEM_STR-JOINTVENTUREPARTNER sy-vline 
WA_IJVNPIITEM_STR-JNTVNTRNETPROFITINTRSTGRP sy-vline 
WA_IJVNPIITEM_STR-JOINTVENTURE sy-vline 
WA_IJVNPIITEM_STR-JOINTVENTUREEQUITYTYPE sy-vline 
WA_IJVNPIITEM_STR-JNTOPGAGRMTEQUITYGRP sy-vline 
WA_IJVNPIITEM_STR-COMPANYCODECURRENCY sy-vline 
WA_IJVNPIITEM_STR-JNTVNTRACCTGISEXPNORREVN sy-vline 
WA_IJVNPIITEM_STR-JOINTVENTUREBILLINGTYPE sy-vline 
WA_IJVNPIITEM_STR-JVANETPRFTGRPPYOUTPCT sy-vline 
WA_IJVNPIITEM_STR-JNTVNTRPAYISSTPPD sy-vline 
WA_IJVNPIITEM_STR-PYOUTAMTINCOCODECRCY sy-vline 
WA_IJVNPIITEM_STR-STARTINGBALANCEAMTINCOCODECRCY sy-vline 
WA_IJVNPIITEM_STR-STARTINGBALANCEAMTINGLOBALCRCY sy-vline 
WA_IJVNPIITEM_STR-STRTGBALAMTINFREEDFNDCRCY1 sy-vline 
WA_IJVNPIITEM_STR-STRTGBALAMTINFREEDFNDCRCY2 sy-vline 
WA_IJVNPIITEM_STR-STRTGBALAMTINFREEDFNDCRCY3 sy-vline 
WA_IJVNPIITEM_STR-STRTGBALAMTINFREEDFNDCRCY4 sy-vline 
WA_IJVNPIITEM_STR-STRTGBALAMTINFREEDFNDCRCY5 sy-vline 
WA_IJVNPIITEM_STR-STRTGBALAMTINFREEDFNDCRCY6 sy-vline 
WA_IJVNPIITEM_STR-STRTGBALAMTINFREEDFNDCRCY7 sy-vline 
WA_IJVNPIITEM_STR-STRTGBALAMTINFREEDFNDCRCY8 sy-vline 
WA_IJVNPIITEM_STR-CURPERDAMTINCCRCY sy-vline 
WA_IJVNPIITEM_STR-CURPERDAMTINGCRCY sy-vline 
WA_IJVNPIITEM_STR-CURPERDAMTINFDCRCY1 sy-vline 
WA_IJVNPIITEM_STR-CURPERDAMTINFDCRCY2 sy-vline 
WA_IJVNPIITEM_STR-CURPERDAMTINFDCRCY3 sy-vline 
WA_IJVNPIITEM_STR-CURPERDAMTINFDCRCY4 sy-vline 
WA_IJVNPIITEM_STR-CURPERDAMTINFDCRCY5 sy-vline 
WA_IJVNPIITEM_STR-CURPERDAMTINFDCRCY6 sy-vline 
WA_IJVNPIITEM_STR-CURPERDAMTINFDCRCY7 sy-vline 
WA_IJVNPIITEM_STR-CURPERDAMTINFDCRCY8 sy-vline 
WA_IJVNPIITEM_STR-ENDINGBALANCEAMTINCOCODECRCY sy-vline 
WA_IJVNPIITEM_STR-ENDINGBALANCEAMTINGLOBALCRCY sy-vline 
WA_IJVNPIITEM_STR-ENDINGBALAMTINFREEDFNDCRCY1 sy-vline 
WA_IJVNPIITEM_STR-ENDINGBALAMTINFREEDFNDCRCY2 sy-vline 
WA_IJVNPIITEM_STR-ENDINGBALAMTINFREEDFNDCRCY3 sy-vline 
WA_IJVNPIITEM_STR-ENDINGBALAMTINFREEDFNDCRCY4 sy-vline 
WA_IJVNPIITEM_STR-ENDINGBALAMTINFREEDFNDCRCY5 sy-vline 
WA_IJVNPIITEM_STR-ENDINGBALAMTINFREEDFNDCRCY6 sy-vline 
WA_IJVNPIITEM_STR-ENDINGBALAMTINFREEDFNDCRCY7 sy-vline 
WA_IJVNPIITEM_STR-ENDINGBALAMTINFREEDFNDCRCY8 sy-vline 
WA_IJVNPIITEM_STR-JVAENDBALINCOCODECRCYWITHPYOUT sy-vline      INTO ld_text SEPARATED BY SPACE.

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