ABAP Select data from SAP table CCABLGREQINVDOCI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCABLGREQINVDOCI
*  INTO TABLE @DATA(IT_CCABLGREQINVDOCI2).
*--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_CCABLGREQINVDOCI INDEX 1 INTO DATA(WA_CCABLGREQINVDOCI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCABLGREQINVDOCI>-MANDT = 1.
<CCABLGREQINVDOCI>-CAINVOICINGDOCUMENT = 1.
<CCABLGREQINVDOCI>-CAINVCGDOCITEM = 1.
<CCABLGREQINVDOCI>-CAISDOCITEMSIMULATED = 1.
<CCABLGREQINVDOCI>-CAINVCGDOCUMENTITEMTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCABLGREQINVDOCI-CACONTRACT, sy-vline,
  WA_CCABLGREQINVDOCI-COMPANYCODE, sy-vline,
  WA_CCABLGREQINVDOCI-TRANSACTIONCURRENCY, sy-vline,
  WA_CCABLGREQINVDOCI-CAAMOUNTINTRANSACTIONCURRENCY, sy-vline,
  WA_CCABLGREQINVDOCI-CABILLGREQPREVDEBITAMOUNT, sy-vline,
  WA_CCABLGREQINVDOCI-CABILLGREQPREVCRDTAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCABLGREQINVDOCI 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_CCABLGREQINVDOCI 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_CCABLGREQINVDOCI INTO WA_CCABLGREQINVDOCI.


*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 CACONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCABLGREQINVDOCI-CACONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCABLGREQINVDOCI-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_CCABLGREQINVDOCI_STR, 
MANDT TYPE STRING,
CAINVOICINGDOCUMENT TYPE STRING,
CAINVCGDOCITEM TYPE STRING,
CAISDOCITEMSIMULATED TYPE STRING,
CAINVCGDOCUMENTITEMTYPE TYPE STRING,
CACONTRACT TYPE STRING,
COMPANYCODE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
CAAMOUNTINTRANSACTIONCURRENCY TYPE STRING,
CABILLGREQPREVDEBITAMOUNT TYPE STRING,
CABILLGREQPREVCRDTAMOUNT TYPE STRING,
CABILLGREQITMAMOUNT TYPE STRING,
CABILLGREQITMAMOUNTCURRENCY TYPE STRING,
CAINVCGREFERENCEOBJECT TYPE STRING,
CAREFERENCEOBJECTID TYPE STRING,
CAINVCGREFERENCEOBJECTAUX TYPE STRING,
CAREFERENCEOBJECTIDAUX TYPE STRING,
CATAXISINCLUDED TYPE STRING,
CAINVCGTAXGROUPINGKEY TYPE STRING,
TAXCODE TYPE STRING,
CATAXRATEINPERCENT TYPE STRING,
CAINVCGDOCITEMEDITIONENABLED TYPE STRING,
CAAPPLICATIONAREA TYPE STRING,
CASUBAPPLICATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCABLGREQINVDOCI_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_CCABLGREQINVDOCI_STR-MANDT sy-vline 
WA_CCABLGREQINVDOCI_STR-CAINVOICINGDOCUMENT sy-vline 
WA_CCABLGREQINVDOCI_STR-CAINVCGDOCITEM sy-vline 
WA_CCABLGREQINVDOCI_STR-CAISDOCITEMSIMULATED sy-vline 
WA_CCABLGREQINVDOCI_STR-CAINVCGDOCUMENTITEMTYPE sy-vline 
WA_CCABLGREQINVDOCI_STR-CACONTRACT sy-vline 
WA_CCABLGREQINVDOCI_STR-COMPANYCODE sy-vline 
WA_CCABLGREQINVDOCI_STR-TRANSACTIONCURRENCY sy-vline 
WA_CCABLGREQINVDOCI_STR-CAAMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_CCABLGREQINVDOCI_STR-CABILLGREQPREVDEBITAMOUNT sy-vline 
WA_CCABLGREQINVDOCI_STR-CABILLGREQPREVCRDTAMOUNT sy-vline 
WA_CCABLGREQINVDOCI_STR-CABILLGREQITMAMOUNT sy-vline 
WA_CCABLGREQINVDOCI_STR-CABILLGREQITMAMOUNTCURRENCY sy-vline 
WA_CCABLGREQINVDOCI_STR-CAINVCGREFERENCEOBJECT sy-vline 
WA_CCABLGREQINVDOCI_STR-CAREFERENCEOBJECTID sy-vline 
WA_CCABLGREQINVDOCI_STR-CAINVCGREFERENCEOBJECTAUX sy-vline 
WA_CCABLGREQINVDOCI_STR-CAREFERENCEOBJECTIDAUX sy-vline 
WA_CCABLGREQINVDOCI_STR-CATAXISINCLUDED sy-vline 
WA_CCABLGREQINVDOCI_STR-CAINVCGTAXGROUPINGKEY sy-vline 
WA_CCABLGREQINVDOCI_STR-TAXCODE sy-vline 
WA_CCABLGREQINVDOCI_STR-CATAXRATEINPERCENT sy-vline 
WA_CCABLGREQINVDOCI_STR-CAINVCGDOCITEMEDITIONENABLED sy-vline 
WA_CCABLGREQINVDOCI_STR-CAAPPLICATIONAREA sy-vline 
WA_CCABLGREQINVDOCI_STR-CASUBAPPLICATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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