ABAP Select data from SAP table CFIN_AVCI_DOCE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CFIN_AVCI_DOCE
*  INTO TABLE @DATA(IT_CFIN_AVCI_DOCE2).
*--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_CFIN_AVCI_DOCE INDEX 1 INTO DATA(WA_CFIN_AVCI_DOCE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CFIN_AVCI_DOCE>-MANDT = 1.
<CFIN_AVCI_DOCE>-AV_DBKEY = 1.
<CFIN_AVCI_DOCE>-SOURCESYSTEMLOGICALSYSTEM = 1.
<CFIN_AVCI_DOCE>-CFINREPLICATEDBILLINGDOCUMENT = 1.
<CFIN_AVCI_DOCE>-SOLDTOPARTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CFIN_AVCI_DOCE-SDDOCUMENTCATEGORY, sy-vline,
  WA_CFIN_AVCI_DOCE-CREATIONDATE, sy-vline,
  WA_CFIN_AVCI_DOCE-COMPANYCODE, sy-vline,
  WA_CFIN_AVCI_DOCE-CANCELLEDBILLINGDOCUMENT, sy-vline,
  WA_CFIN_AVCI_DOCE-BILLINGDOCUMENTDATE, sy-vline,
  WA_CFIN_AVCI_DOCE-TRANSACTIONCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CFIN_AVCI_DOCE 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_CFIN_AVCI_DOCE 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_CFIN_AVCI_DOCE INTO WA_CFIN_AVCI_DOCE.


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

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

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

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

*Conversion exit EXCRT, internal->external for field ACCOUNTINGEXCHANGERATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_CFIN_AVCI_DOCE-ACCOUNTINGEXCHANGERATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFIN_AVCI_DOCE-ACCOUNTINGEXCHANGERATE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BILLTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CFIN_AVCI_DOCE-BILLTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFIN_AVCI_DOCE-BILLTOPARTY.
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_CFIN_AVCI_DOCE_STR, 
MANDT TYPE STRING,
AV_DBKEY TYPE STRING,
SOURCESYSTEMLOGICALSYSTEM TYPE STRING,
CFINREPLICATEDBILLINGDOCUMENT TYPE STRING,
SOLDTOPARTY TYPE STRING,
SDDOCUMENTCATEGORY TYPE STRING,
CREATIONDATE TYPE STRING,
COMPANYCODE TYPE STRING,
CANCELLEDBILLINGDOCUMENT TYPE STRING,
BILLINGDOCUMENTDATE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
ACCOUNTINGEXCHANGERATE TYPE STRING,
PAYERPARTY TYPE STRING,
TAXDEPARTURECOUNTRY TYPE STRING,
EXCHANGERATEDATE TYPE STRING,
BILLINGDOCUMENTISCANCELLED TYPE STRING,
VATREGISTRATIONORIGIN TYPE STRING,
BILLINGDOCUMENTCATEGORY TYPE STRING,
ISDELETED TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
BILLTOPARTY TYPE STRING,
DUMMY_AVCI_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CFIN_AVCI_DOCE_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_CFIN_AVCI_DOCE_STR-MANDT sy-vline 
WA_CFIN_AVCI_DOCE_STR-AV_DBKEY sy-vline 
WA_CFIN_AVCI_DOCE_STR-SOURCESYSTEMLOGICALSYSTEM sy-vline 
WA_CFIN_AVCI_DOCE_STR-CFINREPLICATEDBILLINGDOCUMENT sy-vline 
WA_CFIN_AVCI_DOCE_STR-SOLDTOPARTY sy-vline 
WA_CFIN_AVCI_DOCE_STR-SDDOCUMENTCATEGORY sy-vline 
WA_CFIN_AVCI_DOCE_STR-CREATIONDATE sy-vline 
WA_CFIN_AVCI_DOCE_STR-COMPANYCODE sy-vline 
WA_CFIN_AVCI_DOCE_STR-CANCELLEDBILLINGDOCUMENT sy-vline 
WA_CFIN_AVCI_DOCE_STR-BILLINGDOCUMENTDATE sy-vline 
WA_CFIN_AVCI_DOCE_STR-TRANSACTIONCURRENCY sy-vline 
WA_CFIN_AVCI_DOCE_STR-ACCOUNTINGEXCHANGERATE sy-vline 
WA_CFIN_AVCI_DOCE_STR-PAYERPARTY sy-vline 
WA_CFIN_AVCI_DOCE_STR-TAXDEPARTURECOUNTRY sy-vline 
WA_CFIN_AVCI_DOCE_STR-EXCHANGERATEDATE sy-vline 
WA_CFIN_AVCI_DOCE_STR-BILLINGDOCUMENTISCANCELLED sy-vline 
WA_CFIN_AVCI_DOCE_STR-VATREGISTRATIONORIGIN sy-vline 
WA_CFIN_AVCI_DOCE_STR-BILLINGDOCUMENTCATEGORY sy-vline 
WA_CFIN_AVCI_DOCE_STR-ISDELETED sy-vline 
WA_CFIN_AVCI_DOCE_STR-LASTCHANGEDATETIME sy-vline 
WA_CFIN_AVCI_DOCE_STR-BILLTOPARTY sy-vline 
WA_CFIN_AVCI_DOCE_STR-DUMMY_AVCI_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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