ABAP Select data from SAP table CJVCIITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CJVCIITEM
*  INTO TABLE @DATA(IT_CJVCIITEM2).
*--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_CJVCIITEM INDEX 1 INTO DATA(WA_CJVCIITEM2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CJVCIITEM-COMPANYCODE, sy-vline,
  WA_CJVCIITEM-JNTVNTRINTERESTTYPE, sy-vline,
  WA_CJVCIITEM-JOINTVENTUREPARTNER, sy-vline,
  WA_CJVCIITEM-JNTVNTRCARRIEDINTRSTGRP, sy-vline,
  WA_CJVCIITEM-JOINTVENTURE, sy-vline,
  WA_CJVCIITEM-JOINTVENTUREEQUITYTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CJVCIITEM 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_CJVCIITEM 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_CJVCIITEM INTO WA_CJVCIITEM.


*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_CJVCIITEM-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CJVCIITEM-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field JOINTVENTUREBILLINGTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CJVCIITEM-JOINTVENTUREBILLINGTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CJVCIITEM-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_CJVCIITEM_STR, 
MANDT TYPE STRING,
DOCUMENT_ID TYPE STRING,
UNIQUEITEMIDENTIFIER TYPE STRING,
FISCALYEAR TYPE STRING,
POSTINGPERIOD TYPE STRING,
COMPANYCODE TYPE STRING,
JNTVNTRINTERESTTYPE TYPE STRING,
JOINTVENTUREPARTNER TYPE STRING,
JNTVNTRCARRIEDINTRSTGRP TYPE STRING,
JOINTVENTURE TYPE STRING,
JOINTVENTUREEQUITYTYPE TYPE STRING,
JNTOPGAGRMTEQUITYGRP TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
JNTVNTRACCTGISEXPNORREVN TYPE STRING,
JNTVNTRPENALTYCATEGORY TYPE STRING,
JOINTVENTUREBILLINGTYPE TYPE STRING,
JNTVNTRNONSIGNATORYRCVRYPCT TYPE STRING,
JNTVNTRPAYISSTPPD TYPE STRING,
PNLTYAMTINCOCODECRCY TYPE STRING,
STARTINGBALANCEAMTINTRANSCRCY TYPE STRING,
CURPERDAMTINBLTCRCY TYPE STRING,
ENDINGBALANCEAMTINTRANSCRCY TYPE STRING,
STARTINGBALANCEAMTINCOCODECRCY TYPE STRING,
CURRENTAMTINCOCODECRCY TYPE STRING,
ENDINGBALANCEAMTINCOCODECRCY TYPE STRING,
TOTENDBALINTRANSCRCYWITHPNLTY TYPE STRING,
JOINTVENTUREBILLINGTYPETEXT TYPE STRING,
JNTVNTRFDPCUSTFIELD1 TYPE STRING,
JNTVNTRFDPCUSTFIELD2 TYPE STRING,
JNTVNTRFDPCUSTFIELD3 TYPE STRING,
JNTVNTRFDPCUSTFIELD4 TYPE STRING,
JNTVNTRFDPCUSTFIELD5 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CJVCIITEM_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_CJVCIITEM_STR-MANDT sy-vline 
WA_CJVCIITEM_STR-DOCUMENT_ID sy-vline 
WA_CJVCIITEM_STR-UNIQUEITEMIDENTIFIER sy-vline 
WA_CJVCIITEM_STR-FISCALYEAR sy-vline 
WA_CJVCIITEM_STR-POSTINGPERIOD sy-vline 
WA_CJVCIITEM_STR-COMPANYCODE sy-vline 
WA_CJVCIITEM_STR-JNTVNTRINTERESTTYPE sy-vline 
WA_CJVCIITEM_STR-JOINTVENTUREPARTNER sy-vline 
WA_CJVCIITEM_STR-JNTVNTRCARRIEDINTRSTGRP sy-vline 
WA_CJVCIITEM_STR-JOINTVENTURE sy-vline 
WA_CJVCIITEM_STR-JOINTVENTUREEQUITYTYPE sy-vline 
WA_CJVCIITEM_STR-JNTOPGAGRMTEQUITYGRP sy-vline 
WA_CJVCIITEM_STR-TRANSACTIONCURRENCY sy-vline 
WA_CJVCIITEM_STR-COMPANYCODECURRENCY sy-vline 
WA_CJVCIITEM_STR-JNTVNTRACCTGISEXPNORREVN sy-vline 
WA_CJVCIITEM_STR-JNTVNTRPENALTYCATEGORY sy-vline 
WA_CJVCIITEM_STR-JOINTVENTUREBILLINGTYPE sy-vline 
WA_CJVCIITEM_STR-JNTVNTRNONSIGNATORYRCVRYPCT sy-vline 
WA_CJVCIITEM_STR-JNTVNTRPAYISSTPPD sy-vline 
WA_CJVCIITEM_STR-PNLTYAMTINCOCODECRCY sy-vline 
WA_CJVCIITEM_STR-STARTINGBALANCEAMTINTRANSCRCY sy-vline 
WA_CJVCIITEM_STR-CURPERDAMTINBLTCRCY sy-vline 
WA_CJVCIITEM_STR-ENDINGBALANCEAMTINTRANSCRCY sy-vline 
WA_CJVCIITEM_STR-STARTINGBALANCEAMTINCOCODECRCY sy-vline 
WA_CJVCIITEM_STR-CURRENTAMTINCOCODECRCY sy-vline 
WA_CJVCIITEM_STR-ENDINGBALANCEAMTINCOCODECRCY sy-vline 
WA_CJVCIITEM_STR-TOTENDBALINTRANSCRCYWITHPNLTY sy-vline 
WA_CJVCIITEM_STR-JOINTVENTUREBILLINGTYPETEXT sy-vline 
WA_CJVCIITEM_STR-JNTVNTRFDPCUSTFIELD1 sy-vline 
WA_CJVCIITEM_STR-JNTVNTRFDPCUSTFIELD2 sy-vline 
WA_CJVCIITEM_STR-JNTVNTRFDPCUSTFIELD3 sy-vline 
WA_CJVCIITEM_STR-JNTVNTRFDPCUSTFIELD4 sy-vline 
WA_CJVCIITEM_STR-JNTVNTRFDPCUSTFIELD5 sy-vline      INTO ld_text SEPARATED BY SPACE.

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