ABAP Select data from SAP table FINS_CFIN_S_AV_PO_EX_ACCAS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINS_CFIN_S_AV_PO_EX_ACCAS
*  INTO TABLE @DATA(IT_FINS_CFIN_S_AV_PO_EX_ACCAS2).
*--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_FINS_CFIN_S_AV_PO_EX_ACCAS INDEX 1 INTO DATA(WA_FINS_CFIN_S_AV_PO_EX_ACCAS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINS_CFIN_S_AV_PO_EX_ACCAS>-SOURCESYSTEMLOGICALSYSTEM = 1.
<FINS_CFIN_S_AV_PO_EX_ACCAS>-CFINRPLDPURCHASINGDOCUMENT = 1.
<FINS_CFIN_S_AV_PO_EX_ACCAS>-CFINRPLDPURCHASINGDOCUMENTITEM = 1.
<FINS_CFIN_S_AV_PO_EX_ACCAS>-CFINRPLDPURGDOCACCTASSGMT = 1.
<FINS_CFIN_S_AV_PO_EX_ACCAS>-ISDELETED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINS_CFIN_S_AV_PO_EX_ACCAS-QUANTITY, sy-vline,
  WA_FINS_CFIN_S_AV_PO_EX_ACCAS-MULTIPLEACCTASSGMTDISTRPERCENT, sy-vline,
  WA_FINS_CFIN_S_AV_PO_EX_ACCAS-PURGDOCNETAMOUNT, sy-vline,
  WA_FINS_CFIN_S_AV_PO_EX_ACCAS-LASTCHANGEDATETIME, sy-vline,
  WA_FINS_CFIN_S_AV_PO_EX_ACCAS-ORDERQUANTITYUNIT, sy-vline,
  WA_FINS_CFIN_S_AV_PO_EX_ACCAS-DOCUMENTCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINS_CFIN_S_AV_PO_EX_ACCAS 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_FINS_CFIN_S_AV_PO_EX_ACCAS 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_FINS_CFIN_S_AV_PO_EX_ACCAS INTO WA_FINS_CFIN_S_AV_PO_EX_ACCAS.


*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_FINS_CFIN_S_AV_PO_EX_ACCAS-SOURCESYSTEMLOGICALSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_CFIN_S_AV_PO_EX_ACCAS-SOURCESYSTEMLOGICALSYSTEM.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FINS_CFIN_S_AV_PO_EX_ACCAS-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_CFIN_S_AV_PO_EX_ACCAS-ORDERQUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field ORDERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINS_CFIN_S_AV_PO_EX_ACCAS-ORDERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_CFIN_S_AV_PO_EX_ACCAS-ORDERID.
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_FINS_CFIN_S_AV_PO_EX_ACCAS_STR, 
SOURCESYSTEMLOGICALSYSTEM TYPE STRING,
CFINRPLDPURCHASINGDOCUMENT TYPE STRING,
CFINRPLDPURCHASINGDOCUMENTITEM TYPE STRING,
CFINRPLDPURGDOCACCTASSGMT TYPE STRING,
ISDELETED TYPE STRING,
QUANTITY TYPE STRING,
MULTIPLEACCTASSGMTDISTRPERCENT TYPE STRING,
PURGDOCNETAMOUNT TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
GLACCOUNT TYPE STRING,
COSTCENTER TYPE STRING,
MASTERFIXEDASSET TYPE STRING,
FIXEDASSET TYPE STRING,
ORDERID TYPE STRING,
COMPANYCODE TYPE STRING,
WBSELEMENTEXTERNALID TYPE STRING,
FUNCTIONALAREA TYPE STRING,
NONDEDUCTIBLEINPUTTAXAMOUNT TYPE STRING,
GOODSRECEPIENTNAME TYPE STRING,
CREATIONDATE TYPE STRING,
ISDELTA TYPE STRING,
TOBEDELETED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINS_CFIN_S_AV_PO_EX_ACCAS_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_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-SOURCESYSTEMLOGICALSYSTEM sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-CFINRPLDPURCHASINGDOCUMENT sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-CFINRPLDPURCHASINGDOCUMENTITEM sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-CFINRPLDPURGDOCACCTASSGMT sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-ISDELETED sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-QUANTITY sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-MULTIPLEACCTASSGMTDISTRPERCENT sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-PURGDOCNETAMOUNT sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-LASTCHANGEDATETIME sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-ORDERQUANTITYUNIT sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-DOCUMENTCURRENCY sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-GLACCOUNT sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-COSTCENTER sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-MASTERFIXEDASSET sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-FIXEDASSET sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-ORDERID sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-COMPANYCODE sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-WBSELEMENTEXTERNALID sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-FUNCTIONALAREA sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-NONDEDUCTIBLEINPUTTAXAMOUNT sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-GOODSRECEPIENTNAME sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-CREATIONDATE sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-ISDELTA sy-vline 
WA_FINS_CFIN_S_AV_PO_EX_ACCAS_STR-TOBEDELETED sy-vline      INTO ld_text SEPARATED BY SPACE.

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