ABAP Select data from SAP table ICCCNDNUSG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICCCNDNUSG
*  INTO TABLE @DATA(IT_ICCCNDNUSG2).
*--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_ICCCNDNUSG INDEX 1 INTO DATA(WA_ICCCNDNUSG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICCCNDNUSG>-MANDT = 1.
<ICCCNDNUSG>-DOCRELATIONSHIPUUID = 1.
<ICCCNDNUSG>-PRICINGDOCUMENT = 1.
<ICCCNDNUSG>-PRICINGPROCEDURESTEP = 1.
<ICCCNDNUSG>-PRICINGPROCEDURECOUNTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICCCNDNUSG-CONDITIONCONTRACT, sy-vline,
  WA_ICCCNDNUSG-CNDNCONTRUUID, sy-vline,
  WA_ICCCNDNUSG-BILLINGDOCUMENT, sy-vline,
  WA_ICCCNDNUSG-BILLINGDOCUMENTITEM, sy-vline,
  WA_ICCCNDNUSG-CONDITIONRECORD, sy-vline,
  WA_ICCCNDNUSG-CONDITIONSEQUENTIALNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICCCNDNUSG 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_ICCCNDNUSG 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_ICCCNDNUSG INTO WA_ICCCNDNUSG.


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

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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ICCCNDNUSG-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICCCNDNUSG-FISCALYEAR.
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_ICCCNDNUSG_STR, 
MANDT TYPE STRING,
DOCRELATIONSHIPUUID TYPE STRING,
PRICINGDOCUMENT TYPE STRING,
PRICINGPROCEDURESTEP TYPE STRING,
PRICINGPROCEDURECOUNTER TYPE STRING,
CONDITIONCONTRACT TYPE STRING,
CNDNCONTRUUID TYPE STRING,
BILLINGDOCUMENT TYPE STRING,
BILLINGDOCUMENTITEM TYPE STRING,
CONDITIONRECORD TYPE STRING,
CONDITIONSEQUENTIALNUMBER TYPE STRING,
CONDITIONSEQUENTIALNUMBERSHORT TYPE STRING,
CONDITIONAPPLICATION TYPE STRING,
CONDITIONTYPE TYPE STRING,
CONDITIONAMOUNT TYPE STRING,
CONDITIONCURRENCY TYPE STRING,
AR_DOCUMENTPOSTINGDATE TYPE STRING,
SETTLMTDATE TYPE STRING,
SETTLMTDATESEQUENTIALID TYPE STRING,
REFSETTLMTDATE TYPE STRING,
REFSETTLMTDATESEQUENTIALID TYPE STRING,
FISCALYEAR TYPE STRING,
PLANT TYPE STRING,
COMPANYCODE TYPE STRING,
CNDNCONTRACCRRVSLSTS TYPE STRING,
CNDNCONTRACCRSOURCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICCCNDNUSG_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_ICCCNDNUSG_STR-MANDT sy-vline 
WA_ICCCNDNUSG_STR-DOCRELATIONSHIPUUID sy-vline 
WA_ICCCNDNUSG_STR-PRICINGDOCUMENT sy-vline 
WA_ICCCNDNUSG_STR-PRICINGPROCEDURESTEP sy-vline 
WA_ICCCNDNUSG_STR-PRICINGPROCEDURECOUNTER sy-vline 
WA_ICCCNDNUSG_STR-CONDITIONCONTRACT sy-vline 
WA_ICCCNDNUSG_STR-CNDNCONTRUUID sy-vline 
WA_ICCCNDNUSG_STR-BILLINGDOCUMENT sy-vline 
WA_ICCCNDNUSG_STR-BILLINGDOCUMENTITEM sy-vline 
WA_ICCCNDNUSG_STR-CONDITIONRECORD sy-vline 
WA_ICCCNDNUSG_STR-CONDITIONSEQUENTIALNUMBER sy-vline 
WA_ICCCNDNUSG_STR-CONDITIONSEQUENTIALNUMBERSHORT sy-vline 
WA_ICCCNDNUSG_STR-CONDITIONAPPLICATION sy-vline 
WA_ICCCNDNUSG_STR-CONDITIONTYPE sy-vline 
WA_ICCCNDNUSG_STR-CONDITIONAMOUNT sy-vline 
WA_ICCCNDNUSG_STR-CONDITIONCURRENCY sy-vline 
WA_ICCCNDNUSG_STR-AR_DOCUMENTPOSTINGDATE sy-vline 
WA_ICCCNDNUSG_STR-SETTLMTDATE sy-vline 
WA_ICCCNDNUSG_STR-SETTLMTDATESEQUENTIALID sy-vline 
WA_ICCCNDNUSG_STR-REFSETTLMTDATE sy-vline 
WA_ICCCNDNUSG_STR-REFSETTLMTDATESEQUENTIALID sy-vline 
WA_ICCCNDNUSG_STR-FISCALYEAR sy-vline 
WA_ICCCNDNUSG_STR-PLANT sy-vline 
WA_ICCCNDNUSG_STR-COMPANYCODE sy-vline 
WA_ICCCNDNUSG_STR-CNDNCONTRACCRRVSLSTS sy-vline 
WA_ICCCNDNUSG_STR-CNDNCONTRACCRSOURCE sy-vline      INTO ld_text SEPARATED BY SPACE.

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