ABAP Select data from SAP table BAPI_BILLCONTR_I_CHANGEX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_BILLCONTR_I_CHANGEX
*  INTO TABLE @DATA(IT_BAPI_BILLCONTR_I_CHANGEX2).
*--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_BAPI_BILLCONTR_I_CHANGEX INDEX 1 INTO DATA(WA_BAPI_BILLCONTR_I_CHANGEX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_BILLCONTR_I_CHANGEX>-CONTRACTITEMID = 1.
<BAPI_BILLCONTR_I_CHANGEX>-VALIDFROM = 1.
<BAPI_BILLCONTR_I_CHANGEX>-VALIDTO = 1.
<BAPI_BILLCONTR_I_CHANGEX>-CANCL = 1.
<BAPI_BILLCONTR_I_CHANGEX>-CONTRACTITEM_DESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_BILLCONTR_I_CHANGEX-CONTRACTACCOUNT, sy-vline,
  WA_BAPI_BILLCONTR_I_CHANGEX-PREPAIDACCOUNT, sy-vline,
  WA_BAPI_BILLCONTR_I_CHANGEX-SALESORG, sy-vline,
  WA_BAPI_BILLCONTR_I_CHANGEX-DISTR_CHAN, sy-vline,
  WA_BAPI_BILLCONTR_I_CHANGEX-DIVISION, sy-vline,
  WA_BAPI_BILLCONTR_I_CHANGEX-SALES_ATTR1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_BILLCONTR_I_CHANGEX 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_BAPI_BILLCONTR_I_CHANGEX 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_BAPI_BILLCONTR_I_CHANGEX INTO WA_BAPI_BILLCONTR_I_CHANGEX.


*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_BAPI_BILLCONTR_I_CHANGEX_STR, 
CONTRACTITEMID TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
CANCL TYPE STRING,
CONTRACTITEM_DESCRIPTION TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
PREPAIDACCOUNT TYPE STRING,
SALESORG TYPE STRING,
DISTR_CHAN TYPE STRING,
DIVISION TYPE STRING,
SALES_ATTR1 TYPE STRING,
SALES_ATTR2 TYPE STRING,
PRODUCT TYPE STRING,
CYCLE TYPE STRING,
INV_SCHEDULE TYPE STRING,
AGREEMENT TYPE STRING,
AGREEMENT_PRODUCT TYPE STRING,
SERVICERECIPIENT TYPE STRING,
PARTNER_SETTLEMENT_RULE TYPE STRING,
SHARING_CONTRACT TYPE STRING,
ORDERID TYPE STRING,
WBS_ELEMENT TYPE STRING,
CONTRACTITEMPARENTID TYPE STRING,
RATING_AREA TYPE STRING,
REVACC_RELEVANT TYPE STRING,
REVACC_REFTYPE TYPE STRING,
REVACC_REFID TYPE STRING,
PRODUCT_SP TYPE STRING,
TRANSACTION_PRICE TYPE STRING,
TRPRC_CURRENCY TYPE STRING,
TRPRC_CURRENCY_ISO TYPE STRING,
TRPRC_FREQUENCY_UNIT TYPE STRING,
TRPRC_FREQUENCY_DURATION TYPE STRING,
STANDALONE_SELLING_PRICE TYPE STRING,
SSPRC_CURRENCY TYPE STRING,
SSPRC_CURRENCY_ISO TYPE STRING,
SSPRC_FREQUENCY_UNIT TYPE STRING,
SSPRC_FREQUENCY_DURATION TYPE STRING,
VALTO_CTRTERM TYPE STRING,
VALTO_CTRTERM_LOCL TYPE STRING,
CHANGE_REASON TYPE STRING,
TOTAL_TRANSACTION_PRICE TYPE STRING,
TOTAL_SSP TYPE STRING,
ADDR_SERVICE_RECIPIENT TYPE STRING,
STATUS TYPE STRING,
CUOBJ TYPE STRING,
BILLPLANNO TYPE STRING,
DUNN_PROC TYPE STRING,
XDISCOEXEMPT TYPE STRING,
TAX_COUNTRY TYPE STRING,
DUNN_PARAM_ACTIVE TYPE STRING,
PAY_PARAM_ACTIVE TYPE STRING,
PAYMENT_TERMS TYPE STRING,
METHOD_INC TYPE STRING,
ALTER_PAYER TYPE STRING,
ADDR_ALT_PAYER TYPE STRING,
BANK_INC TYPE STRING,
SEPA_MANDATE_ID TYPE STRING,
CCARD_INC TYPE STRING,
METHOD_OUTG TYPE STRING,
ALTER_PAYEE TYPE STRING,
ADDR_ALT_PAYEE TYPE STRING,
BANK_OUTG TYPE STRING,
CCARD_OUTG TYPE STRING,
QUANTITY TYPE STRING,
QUANTITYUNIT TYPE STRING,
ISOCODE_UNIT TYPE STRING,
VALFROM_CTRTERM TYPE STRING,
VALFROM_CTRTERM_LOCL TYPE STRING,
RECURR_SERVICE_TYPE TYPE STRING,
CHARGE_TYPE TYPE STRING,
PURCH_NO_C TYPE STRING,
PURCH_DATE TYPE STRING,
RA_OI_ORIG TYPE STRING,
PRODUCT_SOLD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_BILLCONTR_I_CHANGEX_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_BAPI_BILLCONTR_I_CHANGEX_STR-CONTRACTITEMID sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-VALIDFROM sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-VALIDTO sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-CANCL sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-CONTRACTITEM_DESCRIPTION sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-CONTRACTACCOUNT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-PREPAIDACCOUNT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-SALESORG sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-DISTR_CHAN sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-DIVISION sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-SALES_ATTR1 sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-SALES_ATTR2 sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-PRODUCT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-CYCLE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-INV_SCHEDULE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-AGREEMENT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-AGREEMENT_PRODUCT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-SERVICERECIPIENT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-PARTNER_SETTLEMENT_RULE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-SHARING_CONTRACT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-ORDERID sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-WBS_ELEMENT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-CONTRACTITEMPARENTID sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-RATING_AREA sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-REVACC_RELEVANT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-REVACC_REFTYPE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-REVACC_REFID sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-PRODUCT_SP sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-TRANSACTION_PRICE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-TRPRC_CURRENCY sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-TRPRC_CURRENCY_ISO sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-TRPRC_FREQUENCY_UNIT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-TRPRC_FREQUENCY_DURATION sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-STANDALONE_SELLING_PRICE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-SSPRC_CURRENCY sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-SSPRC_CURRENCY_ISO sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-SSPRC_FREQUENCY_UNIT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-SSPRC_FREQUENCY_DURATION sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-VALTO_CTRTERM sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-VALTO_CTRTERM_LOCL sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-CHANGE_REASON sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-TOTAL_TRANSACTION_PRICE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-TOTAL_SSP sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-ADDR_SERVICE_RECIPIENT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-STATUS sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-CUOBJ sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-BILLPLANNO sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-DUNN_PROC sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-XDISCOEXEMPT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-TAX_COUNTRY sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-DUNN_PARAM_ACTIVE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-PAY_PARAM_ACTIVE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-PAYMENT_TERMS sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-METHOD_INC sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-ALTER_PAYER sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-ADDR_ALT_PAYER sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-BANK_INC sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-SEPA_MANDATE_ID sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-CCARD_INC sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-METHOD_OUTG sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-ALTER_PAYEE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-ADDR_ALT_PAYEE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-BANK_OUTG sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-CCARD_OUTG sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-QUANTITY sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-QUANTITYUNIT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-ISOCODE_UNIT sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-VALFROM_CTRTERM sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-VALFROM_CTRTERM_LOCL sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-RECURR_SERVICE_TYPE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-CHARGE_TYPE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-PURCH_NO_C sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-PURCH_DATE sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-RA_OI_ORIG sy-vline 
WA_BAPI_BILLCONTR_I_CHANGEX_STR-PRODUCT_SOLD sy-vline      INTO ld_text SEPARATED BY SPACE.

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