ABAP Select data from SAP table CAPFLWJE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CAPFLWJE
*  INTO TABLE @DATA(IT_CAPFLWJE2).
*--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_CAPFLWJE INDEX 1 INTO DATA(WA_CAPFLWJE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CAPFLWJE>-MANDT = 1.
<CAPFLWJE>-ACCOUNTINGDOCUMENT = 1.
<CAPFLWJE>-COMPANYCODE = 1.
<CAPFLWJE>-FISCALYEAR = 1.
<CAPFLWJE>-SUPPLIER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CAPFLWJE-ACCOUNTINGDOCUMENTTYPE, sy-vline,
  WA_CAPFLWJE-ACCOUNTINGDOCUMENTTYPENAME, sy-vline,
  WA_CAPFLWJE-POSTINGDATE, sy-vline,
  WA_CAPFLWJE-REFERENCEDOCUMENTTYPE, sy-vline,
  WA_CAPFLWJE-ORIGINALREFERENCEDOCUMENT, sy-vline,
  WA_CAPFLWJE-DOCUMENTREFERENCEID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CAPFLWJE 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_CAPFLWJE 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_CAPFLWJE INTO WA_CAPFLWJE.


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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CAPFLWJE-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAPFLWJE-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field LEDGER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CAPFLWJE-LEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAPFLWJE-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_CAPFLWJE_STR, 
MANDT TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
SUPPLIER TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
ACCOUNTINGDOCUMENTTYPENAME TYPE STRING,
POSTINGDATE TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
ORIGINALREFERENCEDOCUMENT TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
ACCOUNTINGDOCCREATEDBYUSER TYPE STRING,
FULLNAME TYPE STRING,
SUPPLIERNAME TYPE STRING,
TAXCODE TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
DOCUMENTDATE TYPE STRING,
NETDUEDATE TYPE STRING,
PAYMENTBLOCKINGREASON TYPE STRING,
ACCOUNTINGDOCUMENTCATEGORY TYPE STRING,
SUPPLIERINVOICEISCREDITMEMO TYPE STRING,
SUPPLIERINVOICE TYPE STRING,
LEDGER TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
COMPANYCODENAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CAPFLWJE_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_CAPFLWJE_STR-MANDT sy-vline 
WA_CAPFLWJE_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_CAPFLWJE_STR-COMPANYCODE sy-vline 
WA_CAPFLWJE_STR-FISCALYEAR sy-vline 
WA_CAPFLWJE_STR-SUPPLIER sy-vline 
WA_CAPFLWJE_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_CAPFLWJE_STR-ACCOUNTINGDOCUMENTTYPENAME sy-vline 
WA_CAPFLWJE_STR-POSTINGDATE sy-vline 
WA_CAPFLWJE_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_CAPFLWJE_STR-ORIGINALREFERENCEDOCUMENT sy-vline 
WA_CAPFLWJE_STR-DOCUMENTREFERENCEID sy-vline 
WA_CAPFLWJE_STR-ACCOUNTINGDOCCREATEDBYUSER sy-vline 
WA_CAPFLWJE_STR-FULLNAME sy-vline 
WA_CAPFLWJE_STR-SUPPLIERNAME sy-vline 
WA_CAPFLWJE_STR-TAXCODE sy-vline 
WA_CAPFLWJE_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_CAPFLWJE_STR-TRANSACTIONCURRENCY sy-vline 
WA_CAPFLWJE_STR-DOCUMENTDATE sy-vline 
WA_CAPFLWJE_STR-NETDUEDATE sy-vline 
WA_CAPFLWJE_STR-PAYMENTBLOCKINGREASON sy-vline 
WA_CAPFLWJE_STR-ACCOUNTINGDOCUMENTCATEGORY sy-vline 
WA_CAPFLWJE_STR-SUPPLIERINVOICEISCREDITMEMO sy-vline 
WA_CAPFLWJE_STR-SUPPLIERINVOICE sy-vline 
WA_CAPFLWJE_STR-LEDGER sy-vline 
WA_CAPFLWJE_STR-AUTHORIZATIONGROUP sy-vline 
WA_CAPFLWJE_STR-COMPANYCODENAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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