ABAP Select data from SAP table IJVCOPARAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IJVCOPARAM
*  INTO TABLE @DATA(IT_IJVCOPARAM2).
*--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_IJVCOPARAM INDEX 1 INTO DATA(WA_IJVCOPARAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IJVCOPARAM>-MANDT = 1.
<IJVCOPARAM>-COMPANYCODE = 1.
<IJVCOPARAM>-JNTVNTRINCEPTIONTODATEBILLG = 1.
<IJVCOPARAM>-JOINTVENTUREREGION = 1.
<IJVCOPARAM>-OPERATOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IJVCOPARAM-JOINTVENTURECORPORATE, sy-vline,
  WA_IJVCOPARAM-JOINTVENTURECORPORATEEQUITYGRP, sy-vline,
  WA_IJVCOPARAM-JVACORPFUNDEDRCVRYCODE, sy-vline,
  WA_IJVCOPARAM-JVAVENTUREFUNDEDCORPRCVRYCODE, sy-vline,
  WA_IJVCOPARAM-TAXCODE, sy-vline,
  WA_IJVCOPARAM-JNTVNTROUTTAXCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IJVCOPARAM 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_IJVCOPARAM 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_IJVCOPARAM INTO WA_IJVCOPARAM.


*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 OPERATOR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IJVCOPARAM-OPERATOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IJVCOPARAM-OPERATOR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field LEDGER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IJVCOPARAM-LEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IJVCOPARAM-LEDGER.
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_IJVCOPARAM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
JNTVNTRINCEPTIONTODATEBILLG TYPE STRING,
JOINTVENTUREREGION TYPE STRING,
OPERATOR TYPE STRING,
JOINTVENTURECORPORATE TYPE STRING,
JOINTVENTURECORPORATEEQUITYGRP TYPE STRING,
JVACORPFUNDEDRCVRYCODE TYPE STRING,
JVAVENTUREFUNDEDCORPRCVRYCODE TYPE STRING,
TAXCODE TYPE STRING,
JNTVNTROUTTAXCODE TYPE STRING,
JNTVNTRTAXJURISDICTION TYPE STRING,
JNTVNTRCONSTRUCTIONEXCLSNSET TYPE STRING,
JNTVNTRCATASTROPHEEXCLSNSET TYPE STRING,
JVAEXCLSNACCTSETPERCENTPRODG TYPE STRING,
JVAEXCLSNACCTSETPERCENTDEV TYPE STRING,
JNTVNTRCAPITALEXCLSNSET TYPE STRING,
JNTVNTRNONCOMPULSORYRATE TYPE STRING,
LEDGER TYPE STRING,
CURRENCY TYPE STRING,
JNTVNTRBILLGTHLDDEBIT TYPE STRING,
JNTVNTRBILLGTHLDCREDIT TYPE STRING,
INVOICINGLEVEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IJVCOPARAM_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_IJVCOPARAM_STR-MANDT sy-vline 
WA_IJVCOPARAM_STR-COMPANYCODE sy-vline 
WA_IJVCOPARAM_STR-JNTVNTRINCEPTIONTODATEBILLG sy-vline 
WA_IJVCOPARAM_STR-JOINTVENTUREREGION sy-vline 
WA_IJVCOPARAM_STR-OPERATOR sy-vline 
WA_IJVCOPARAM_STR-JOINTVENTURECORPORATE sy-vline 
WA_IJVCOPARAM_STR-JOINTVENTURECORPORATEEQUITYGRP sy-vline 
WA_IJVCOPARAM_STR-JVACORPFUNDEDRCVRYCODE sy-vline 
WA_IJVCOPARAM_STR-JVAVENTUREFUNDEDCORPRCVRYCODE sy-vline 
WA_IJVCOPARAM_STR-TAXCODE sy-vline 
WA_IJVCOPARAM_STR-JNTVNTROUTTAXCODE sy-vline 
WA_IJVCOPARAM_STR-JNTVNTRTAXJURISDICTION sy-vline 
WA_IJVCOPARAM_STR-JNTVNTRCONSTRUCTIONEXCLSNSET sy-vline 
WA_IJVCOPARAM_STR-JNTVNTRCATASTROPHEEXCLSNSET sy-vline 
WA_IJVCOPARAM_STR-JVAEXCLSNACCTSETPERCENTPRODG sy-vline 
WA_IJVCOPARAM_STR-JVAEXCLSNACCTSETPERCENTDEV sy-vline 
WA_IJVCOPARAM_STR-JNTVNTRCAPITALEXCLSNSET sy-vline 
WA_IJVCOPARAM_STR-JNTVNTRNONCOMPULSORYRATE sy-vline 
WA_IJVCOPARAM_STR-LEDGER sy-vline 
WA_IJVCOPARAM_STR-CURRENCY sy-vline 
WA_IJVCOPARAM_STR-JNTVNTRBILLGTHLDDEBIT sy-vline 
WA_IJVCOPARAM_STR-JNTVNTRBILLGTHLDCREDIT sy-vline 
WA_IJVCOPARAM_STR-INVOICINGLEVEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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