ABAP Select data from SAP table CCAINVBILL_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCAINVBILL_S
*  INTO TABLE @DATA(IT_CCAINVBILL_S2).
*--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_CCAINVBILL_S INDEX 1 INTO DATA(WA_CCAINVBILL_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCAINVBILL_S>-MANDT = 1.
<CCAINVBILL_S>-CABILLGDOCUMENT = 1.
<CCAINVBILL_S>-CABILLGDOCSOURCEITEM = 1.
<CCAINVBILL_S>-CABILLGRECORDTYPE = 1.
<CCAINVBILL_S>-CACNSMPNITMCLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCAINVBILL_S-CABLLBLEITMCLASS, sy-vline,
  WA_CCAINVBILL_S-CABILLGSUBPROCESS, sy-vline,
  WA_CCAINVBILL_S-CABLLBLEITMTYPE, sy-vline,
  WA_CCAINVBILL_S-CABILLGDOCCREATIONDATE, sy-vline,
  WA_CCAINVBILL_S-CABILLGGROUPINGSOURCEITEMS, sy-vline,
  WA_CCAINVBILL_S-CABILLGISDOCUMENTSIMULATED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCAINVBILL_S 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_CCAINVBILL_S 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_CCAINVBILL_S INTO WA_CCAINVBILL_S.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CCAINVBILL_S_STR, 
MANDT TYPE STRING,
CABILLGDOCUMENT TYPE STRING,
CABILLGDOCSOURCEITEM TYPE STRING,
CABILLGRECORDTYPE TYPE STRING,
CACNSMPNITMCLASS TYPE STRING,
CABLLBLEITMCLASS TYPE STRING,
CABILLGSUBPROCESS TYPE STRING,
CABLLBLEITMTYPE TYPE STRING,
CABILLGDOCCREATIONDATE TYPE STRING,
CABILLGGROUPINGSOURCEITEMS TYPE STRING,
CABILLGISDOCUMENTSIMULATED TYPE STRING,
CABLLBLEITMSTATUS TYPE STRING,
CABLLBLEITMRECORDTYPE TYPE STRING,
CABLLBLEITMDATABASETABLE TYPE STRING,
CABILLGGROUPINGBILLABLEITEM TYPE STRING,
CABLLBLEITMSOURCETRANSTYPE TYPE STRING,
CABILLGSOURCETRANSREFTYPE TYPE STRING,
CABILLGSOURCETRANSREF TYPE STRING,
CABLLBLEITMPRIMARY TYPE STRING,
CABLLBLEITMPRIMARYTYPE TYPE STRING,
CABLLBLEITMORIGINMONTH TYPE STRING,
CABLLBLEITMCREATIONMONTH TYPE STRING,
CABLLBLEITMAMOUNT TYPE STRING,
CABLLBLEITMCURRENCY TYPE STRING,
CABLLBLEITMNUMBER TYPE STRING,
CACNSMPNITMCLASSTEXT TYPE STRING,
CABLLBLEITMCLASSTEXT TYPE STRING,
CABLLBLEITMTYPETEXT TYPE STRING,
CABLLBLEITMSRCETRANSTYPETEXT TYPE STRING,
CABILLGSUBPROCESSTEXT TYPE STRING,
CABILLGRECORDTYPETEXT TYPE STRING,
CABLLBLEITMSTATUSTEXT TYPE STRING,
CABLLBLEITMRECORDTYPETEXT TYPE STRING,
CABILLGSOURCETRANSREFTYPTEXT TYPE STRING,
CABLLBLEITMPRIMARYTYPETEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCAINVBILL_S_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_CCAINVBILL_S_STR-MANDT sy-vline 
WA_CCAINVBILL_S_STR-CABILLGDOCUMENT sy-vline 
WA_CCAINVBILL_S_STR-CABILLGDOCSOURCEITEM sy-vline 
WA_CCAINVBILL_S_STR-CABILLGRECORDTYPE sy-vline 
WA_CCAINVBILL_S_STR-CACNSMPNITMCLASS sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMCLASS sy-vline 
WA_CCAINVBILL_S_STR-CABILLGSUBPROCESS sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMTYPE sy-vline 
WA_CCAINVBILL_S_STR-CABILLGDOCCREATIONDATE sy-vline 
WA_CCAINVBILL_S_STR-CABILLGGROUPINGSOURCEITEMS sy-vline 
WA_CCAINVBILL_S_STR-CABILLGISDOCUMENTSIMULATED sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMSTATUS sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMRECORDTYPE sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMDATABASETABLE sy-vline 
WA_CCAINVBILL_S_STR-CABILLGGROUPINGBILLABLEITEM sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMSOURCETRANSTYPE sy-vline 
WA_CCAINVBILL_S_STR-CABILLGSOURCETRANSREFTYPE sy-vline 
WA_CCAINVBILL_S_STR-CABILLGSOURCETRANSREF sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMPRIMARY sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMPRIMARYTYPE sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMORIGINMONTH sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMCREATIONMONTH sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMAMOUNT sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMCURRENCY sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMNUMBER sy-vline 
WA_CCAINVBILL_S_STR-CACNSMPNITMCLASSTEXT sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMCLASSTEXT sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMTYPETEXT sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMSRCETRANSTYPETEXT sy-vline 
WA_CCAINVBILL_S_STR-CABILLGSUBPROCESSTEXT sy-vline 
WA_CCAINVBILL_S_STR-CABILLGRECORDTYPETEXT sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMSTATUSTEXT sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMRECORDTYPETEXT sy-vline 
WA_CCAINVBILL_S_STR-CABILLGSOURCETRANSREFTYPTEXT sy-vline 
WA_CCAINVBILL_S_STR-CABLLBLEITMPRIMARYTYPETEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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