ABAP Select data from SAP table ICAINVBILL_I into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICAINVBILL_I
*  INTO TABLE @DATA(IT_ICAINVBILL_I2).
*--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_ICAINVBILL_I INDEX 1 INTO DATA(WA_ICAINVBILL_I2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICAINVBILL_I>-MANDT = 1.
<ICAINVBILL_I>-CABILLGDOCUMENT = 1.
<ICAINVBILL_I>-CABILLGDOCITEM = 1.
<ICAINVBILL_I>-CAISDOCITEMSIMULATED = 1.
<ICAINVBILL_I>-CABILLGDOCUMENTITEMTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICAINVBILL_I-CACONTRACT, sy-vline,
  WA_ICAINVBILL_I-COMPANYCODE, sy-vline,
  WA_ICAINVBILL_I-CAMAINTRANSACTION, sy-vline,
  WA_ICAINVBILL_I-CASUBTRANSACTION, sy-vline,
  WA_ICAINVBILL_I-CAINVCGISITEMPOSTINGRELEVANT, sy-vline,
  WA_ICAINVBILL_I-CAINVCGISITEMPRINTINGRELEVANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICAINVBILL_I 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_ICAINVBILL_I 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_ICAINVBILL_I INTO WA_ICAINVBILL_I.


*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_ICAINVBILL_I-CACONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICAINVBILL_I-CACONTRACT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICAINVBILL_I-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICAINVBILL_I-PROFITCENTER.
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_ICAINVBILL_I_STR, 
MANDT TYPE STRING,
CABILLGDOCUMENT TYPE STRING,
CABILLGDOCITEM TYPE STRING,
CAISDOCITEMSIMULATED TYPE STRING,
CABILLGDOCUMENTITEMTYPE TYPE STRING,
CACONTRACT TYPE STRING,
COMPANYCODE TYPE STRING,
CAMAINTRANSACTION TYPE STRING,
CASUBTRANSACTION TYPE STRING,
CAINVCGISITEMPOSTINGRELEVANT TYPE STRING,
CAINVCGISITEMPRINTINGRELEVANT TYPE STRING,
CABILLGDOCITEMAMOUNT TYPE STRING,
CABILLGCURRENCY TYPE STRING,
CATAXISINCLUDED TYPE STRING,
TAXCODE TYPE STRING,
UNITOFMEASURE TYPE STRING,
CABILLGDOCITEMEXTERNALNUMBER TYPE STRING,
CABILLGDOCITEMISREVERSAL TYPE STRING,
CAINVCGDOCITEMISREVERSAL TYPE STRING,
CAINVCGCORRECTIONCATEGORY TYPE STRING,
CAINVCGISNOTBPRELEVANT TYPE STRING,
CAINVCGSUBSTITUTEGROUPPRINTING TYPE STRING,
CAITEMPERIODSTARTDATE TYPE STRING,
CAITEMPERIODENDDATE TYPE STRING,
CANETDUEDATE TYPE STRING,
DIVISION TYPE STRING,
BUSINESSAREA TYPE STRING,
BUSINESSPLACE TYPE STRING,
SEGMENT TYPE STRING,
PROFITCENTER TYPE STRING,
CAACCOUNTDETERMINATIONCODE TYPE STRING,
CATAXDETNTYPE TYPE STRING,
CATAXCOUNTRY TYPE STRING,
CATAXDATETYPE TYPE STRING,
CABILLGTAXGROUP TYPE STRING,
CAEXTERNALTAXDATE TYPE STRING,
CATAXDETERMINATIONCODE TYPE STRING,
CAALTVTAXDETERMINATIONCODE TYPE STRING,
CAALTVTAXCODE TYPE STRING,
CAOTHERTAXCODE TYPE STRING,
TAXJURISDICTION TYPE STRING,
WITHHOLDINGTAXCODE TYPE STRING,
CAISDOWNPAYMENTREQUEST TYPE STRING,
CASTATISTICALITEMCODE TYPE STRING,
CABILLGDEFERREDREVENUECATEGORY TYPE STRING,
CABILLGDEFERREDREVENUEDATE TYPE STRING,
CAINVCGDFRRDREVENUESTATUS TYPE STRING,
CAISREVENUEACCOUNTINGRELEVANT TYPE STRING,
CAREVENUEACCOUNTINGSERVICETYPE TYPE STRING,
CAINVCGACCRUALPOSTINGTYPE TYPE STRING,
CABILLGDOCITEMISBIRELEVANT TYPE STRING,
CABILLGDOCITEMISFICORELEVANT TYPE STRING,
CAPROVIDERCONTRACTITEMNUMBER TYPE STRING,
CASUBAPPLICATION TYPE STRING,
CAISPREPAID TYPE STRING,
CABILLGISPREPAIDBALANCECHG TYPE STRING,
CABILLGPARTNERSETTLEMENTCAT TYPE STRING,
CABILLGDOCITEMCRTNMETHOD TYPE STRING,
CABILLGFUNCTION TYPE STRING,
CABILLGGRPGOFADDITIONALITEMS TYPE STRING,
CABILLGGRPGOFPAYMENTDATA TYPE STRING,
CABILLGGROUPINGSOURCEITEMS TYPE STRING,
CADISCBASEITMGROUP TYPE STRING,
CAREASONSECURITYDEPOSIT TYPE STRING,
CABILLGREQREASON TYPE STRING,
CABLLBLEITMDISCOUNTKEY TYPE STRING,
CABLLBLEITMDISCOUNTVERSION TYPE STRING,
CABILLINGQUANTITY TYPE STRING,
CABILLGQUANTITYBEFOREDECPOINT TYPE STRING,
CABILLGQUANTITYAFTERDECPOINT TYPE STRING,
CADEPENDENTITEMTYPE TYPE STRING,
CONDITIONTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICAINVBILL_I_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_ICAINVBILL_I_STR-MANDT sy-vline 
WA_ICAINVBILL_I_STR-CABILLGDOCUMENT sy-vline 
WA_ICAINVBILL_I_STR-CABILLGDOCITEM sy-vline 
WA_ICAINVBILL_I_STR-CAISDOCITEMSIMULATED sy-vline 
WA_ICAINVBILL_I_STR-CABILLGDOCUMENTITEMTYPE sy-vline 
WA_ICAINVBILL_I_STR-CACONTRACT sy-vline 
WA_ICAINVBILL_I_STR-COMPANYCODE sy-vline 
WA_ICAINVBILL_I_STR-CAMAINTRANSACTION sy-vline 
WA_ICAINVBILL_I_STR-CASUBTRANSACTION sy-vline 
WA_ICAINVBILL_I_STR-CAINVCGISITEMPOSTINGRELEVANT sy-vline 
WA_ICAINVBILL_I_STR-CAINVCGISITEMPRINTINGRELEVANT sy-vline 
WA_ICAINVBILL_I_STR-CABILLGDOCITEMAMOUNT sy-vline 
WA_ICAINVBILL_I_STR-CABILLGCURRENCY sy-vline 
WA_ICAINVBILL_I_STR-CATAXISINCLUDED sy-vline 
WA_ICAINVBILL_I_STR-TAXCODE sy-vline 
WA_ICAINVBILL_I_STR-UNITOFMEASURE sy-vline 
WA_ICAINVBILL_I_STR-CABILLGDOCITEMEXTERNALNUMBER sy-vline 
WA_ICAINVBILL_I_STR-CABILLGDOCITEMISREVERSAL sy-vline 
WA_ICAINVBILL_I_STR-CAINVCGDOCITEMISREVERSAL sy-vline 
WA_ICAINVBILL_I_STR-CAINVCGCORRECTIONCATEGORY sy-vline 
WA_ICAINVBILL_I_STR-CAINVCGISNOTBPRELEVANT sy-vline 
WA_ICAINVBILL_I_STR-CAINVCGSUBSTITUTEGROUPPRINTING sy-vline 
WA_ICAINVBILL_I_STR-CAITEMPERIODSTARTDATE sy-vline 
WA_ICAINVBILL_I_STR-CAITEMPERIODENDDATE sy-vline 
WA_ICAINVBILL_I_STR-CANETDUEDATE sy-vline 
WA_ICAINVBILL_I_STR-DIVISION sy-vline 
WA_ICAINVBILL_I_STR-BUSINESSAREA sy-vline 
WA_ICAINVBILL_I_STR-BUSINESSPLACE sy-vline 
WA_ICAINVBILL_I_STR-SEGMENT sy-vline 
WA_ICAINVBILL_I_STR-PROFITCENTER sy-vline 
WA_ICAINVBILL_I_STR-CAACCOUNTDETERMINATIONCODE sy-vline 
WA_ICAINVBILL_I_STR-CATAXDETNTYPE sy-vline 
WA_ICAINVBILL_I_STR-CATAXCOUNTRY sy-vline 
WA_ICAINVBILL_I_STR-CATAXDATETYPE sy-vline 
WA_ICAINVBILL_I_STR-CABILLGTAXGROUP sy-vline 
WA_ICAINVBILL_I_STR-CAEXTERNALTAXDATE sy-vline 
WA_ICAINVBILL_I_STR-CATAXDETERMINATIONCODE sy-vline 
WA_ICAINVBILL_I_STR-CAALTVTAXDETERMINATIONCODE sy-vline 
WA_ICAINVBILL_I_STR-CAALTVTAXCODE sy-vline 
WA_ICAINVBILL_I_STR-CAOTHERTAXCODE sy-vline 
WA_ICAINVBILL_I_STR-TAXJURISDICTION sy-vline 
WA_ICAINVBILL_I_STR-WITHHOLDINGTAXCODE sy-vline 
WA_ICAINVBILL_I_STR-CAISDOWNPAYMENTREQUEST sy-vline 
WA_ICAINVBILL_I_STR-CASTATISTICALITEMCODE sy-vline 
WA_ICAINVBILL_I_STR-CABILLGDEFERREDREVENUECATEGORY sy-vline 
WA_ICAINVBILL_I_STR-CABILLGDEFERREDREVENUEDATE sy-vline 
WA_ICAINVBILL_I_STR-CAINVCGDFRRDREVENUESTATUS sy-vline 
WA_ICAINVBILL_I_STR-CAISREVENUEACCOUNTINGRELEVANT sy-vline 
WA_ICAINVBILL_I_STR-CAREVENUEACCOUNTINGSERVICETYPE sy-vline 
WA_ICAINVBILL_I_STR-CAINVCGACCRUALPOSTINGTYPE sy-vline 
WA_ICAINVBILL_I_STR-CABILLGDOCITEMISBIRELEVANT sy-vline 
WA_ICAINVBILL_I_STR-CABILLGDOCITEMISFICORELEVANT sy-vline 
WA_ICAINVBILL_I_STR-CAPROVIDERCONTRACTITEMNUMBER sy-vline 
WA_ICAINVBILL_I_STR-CASUBAPPLICATION sy-vline 
WA_ICAINVBILL_I_STR-CAISPREPAID sy-vline 
WA_ICAINVBILL_I_STR-CABILLGISPREPAIDBALANCECHG sy-vline 
WA_ICAINVBILL_I_STR-CABILLGPARTNERSETTLEMENTCAT sy-vline 
WA_ICAINVBILL_I_STR-CABILLGDOCITEMCRTNMETHOD sy-vline 
WA_ICAINVBILL_I_STR-CABILLGFUNCTION sy-vline 
WA_ICAINVBILL_I_STR-CABILLGGRPGOFADDITIONALITEMS sy-vline 
WA_ICAINVBILL_I_STR-CABILLGGRPGOFPAYMENTDATA sy-vline 
WA_ICAINVBILL_I_STR-CABILLGGROUPINGSOURCEITEMS sy-vline 
WA_ICAINVBILL_I_STR-CADISCBASEITMGROUP sy-vline 
WA_ICAINVBILL_I_STR-CAREASONSECURITYDEPOSIT sy-vline 
WA_ICAINVBILL_I_STR-CABILLGREQREASON sy-vline 
WA_ICAINVBILL_I_STR-CABLLBLEITMDISCOUNTKEY sy-vline 
WA_ICAINVBILL_I_STR-CABLLBLEITMDISCOUNTVERSION sy-vline 
WA_ICAINVBILL_I_STR-CABILLINGQUANTITY sy-vline 
WA_ICAINVBILL_I_STR-CABILLGQUANTITYBEFOREDECPOINT sy-vline 
WA_ICAINVBILL_I_STR-CABILLGQUANTITYAFTERDECPOINT sy-vline 
WA_ICAINVBILL_I_STR-CADEPENDENTITEMTYPE sy-vline 
WA_ICAINVBILL_I_STR-CONDITIONTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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