ABAP Select data from SAP table CCAINVCFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCAINVCFO
*  INTO TABLE @DATA(IT_CCAINVCFO2).
*--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_CCAINVCFO INDEX 1 INTO DATA(WA_CCAINVCFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCAINVCFO>-MANDT = 1.
<CCAINVCFO>-CAINVOICINGDOCUMENT = 1.
<CCAINVCFO>-BUSINESSPARTNER = 1.
<CCAINVCFO>-CANETDUEDATE = 1.
<CCAINVCFO>-CACLEARINGSTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCAINVCFO-AMOUNTINDISPLAYCURRENCY, sy-vline,
  WA_CCAINVCFO-OPENAMOUNTINDISPLAYCRCY, sy-vline,
  WA_CCAINVCFO-OPENDUEAMOUNTINDISPLAYCRCY, sy-vline,
  WA_CCAINVCFO-TRANSACTIONCURRENCY, sy-vline,
  WA_CCAINVCFO-CAINVCGBASEDATE, sy-vline,
  WA_CCAINVCFO-CAINVCGDOCHASCONTROLDOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCAINVCFO 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_CCAINVCFO 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_CCAINVCFO INTO WA_CCAINVCFO.


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

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

*Conversion exit ALPHA, internal->external for field CACONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCAINVCFO-CACONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAINVCFO-CACONTRACT.
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_CCAINVCFO_STR, 
MANDT TYPE STRING,
CAINVOICINGDOCUMENT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CANETDUEDATE TYPE STRING,
CACLEARINGSTATUS TYPE STRING,
AMOUNTINDISPLAYCURRENCY TYPE STRING,
OPENAMOUNTINDISPLAYCRCY TYPE STRING,
OPENDUEAMOUNTINDISPLAYCRCY TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
CAINVCGBASEDATE TYPE STRING,
CAINVCGDOCHASCONTROLDOC TYPE STRING,
CAINVCGDOCISLOCKEDFORPRINTING TYPE STRING,
CAINVCGDOCLOCKEDFORPRINTTEXT TYPE STRING,
CAINVCGDOCUMENTPRINTDATE TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
COMPANYCODE TYPE STRING,
CAPROVIDERCONTRACTAUTHZNGROUP TYPE STRING,
CACONTRACT TYPE STRING,
CASUBAPPLICATION TYPE STRING,
CASUBAPPLICATIONTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCAINVCFO_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_CCAINVCFO_STR-MANDT sy-vline 
WA_CCAINVCFO_STR-CAINVOICINGDOCUMENT sy-vline 
WA_CCAINVCFO_STR-BUSINESSPARTNER sy-vline 
WA_CCAINVCFO_STR-CANETDUEDATE sy-vline 
WA_CCAINVCFO_STR-CACLEARINGSTATUS sy-vline 
WA_CCAINVCFO_STR-AMOUNTINDISPLAYCURRENCY sy-vline 
WA_CCAINVCFO_STR-OPENAMOUNTINDISPLAYCRCY sy-vline 
WA_CCAINVCFO_STR-OPENDUEAMOUNTINDISPLAYCRCY sy-vline 
WA_CCAINVCFO_STR-TRANSACTIONCURRENCY sy-vline 
WA_CCAINVCFO_STR-CAINVCGBASEDATE sy-vline 
WA_CCAINVCFO_STR-CAINVCGDOCHASCONTROLDOC sy-vline 
WA_CCAINVCFO_STR-CAINVCGDOCISLOCKEDFORPRINTING sy-vline 
WA_CCAINVCFO_STR-CAINVCGDOCLOCKEDFORPRINTTEXT sy-vline 
WA_CCAINVCFO_STR-CAINVCGDOCUMENTPRINTDATE sy-vline 
WA_CCAINVCFO_STR-CONTRACTACCOUNT sy-vline 
WA_CCAINVCFO_STR-COMPANYCODE sy-vline 
WA_CCAINVCFO_STR-CAPROVIDERCONTRACTAUTHZNGROUP sy-vline 
WA_CCAINVCFO_STR-CACONTRACT sy-vline 
WA_CCAINVCFO_STR-CASUBAPPLICATION sy-vline 
WA_CCAINVCFO_STR-CASUBAPPLICATIONTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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