ABAP Select data from SAP table BBP_IMS_INV_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBP_IMS_INV_HEADER
*  INTO TABLE @DATA(IT_BBP_IMS_INV_HEADER2).
*--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_BBP_IMS_INV_HEADER INDEX 1 INTO DATA(WA_BBP_IMS_INV_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBP_IMS_INV_HEADER>-INVOICE_ID = 1.
<BBP_IMS_INV_HEADER>-INVOICE_NO = 1.
<BBP_IMS_INV_HEADER>-ACC_NO = 1.
<BBP_IMS_INV_HEADER>-REQUESTER_ID = 1.
<BBP_IMS_INV_HEADER>-INVOICE_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBP_IMS_INV_HEADER-SOURCE, sy-vline,
  WA_BBP_IMS_INV_HEADER-POSTING_DATE, sy-vline,
  WA_BBP_IMS_INV_HEADER-VENDOR_ID, sy-vline,
  WA_BBP_IMS_INV_HEADER-VENDOR_DESC, sy-vline,
  WA_BBP_IMS_INV_HEADER-PAYMENT_TERMS, sy-vline,
  WA_BBP_IMS_INV_HEADER-CURR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBP_IMS_INV_HEADER 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_BBP_IMS_INV_HEADER 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_BBP_IMS_INV_HEADER INTO WA_BBP_IMS_INV_HEADER.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBP_IMS_INV_HEADER-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBP_IMS_INV_HEADER-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_BBP_IMS_INV_HEADER-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBP_IMS_INV_HEADER-GJAHR.
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_BBP_IMS_INV_HEADER_STR, 
INVOICE_ID TYPE STRING,
INVOICE_NO TYPE STRING,
ACC_NO TYPE STRING,
REQUESTER_ID TYPE STRING,
INVOICE_DATE TYPE STRING,
SOURCE TYPE STRING,
POSTING_DATE TYPE STRING,
VENDOR_ID TYPE STRING,
VENDOR_DESC TYPE STRING,
PAYMENT_TERMS TYPE STRING,
CURR TYPE STRING,
SUBTOTAL TYPE STRING,
TAX TYPE STRING,
SHIPPING TYPE STRING,
BALANCEDUE TYPE STRING,
VENDOR_CITY TYPE STRING,
VENDOR_POSTL_COD1 TYPE STRING,
VENDOR_STREET TYPE STRING,
VENDOR_HOUSE_NO TYPE STRING,
VENDOR_REGION TYPE STRING,
VENDOR_TEL1_NUMBR TYPE STRING,
VENDOR_TEL1_EXT TYPE STRING,
VENDOR_FAX_NUMBER TYPE STRING,
VENDOR_FAX_EXTENS TYPE STRING,
VENDOR_COUNTRY TYPE STRING,
COMP_CITY TYPE STRING,
COMP_POSTL_COD1 TYPE STRING,
COMP_STREET TYPE STRING,
COMP_HOUSE_NO TYPE STRING,
COMP_REGION TYPE STRING,
COMP_COUNTRY TYPE STRING,
COMP_DESC TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBP_IMS_INV_HEADER_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_BBP_IMS_INV_HEADER_STR-INVOICE_ID sy-vline 
WA_BBP_IMS_INV_HEADER_STR-INVOICE_NO sy-vline 
WA_BBP_IMS_INV_HEADER_STR-ACC_NO sy-vline 
WA_BBP_IMS_INV_HEADER_STR-REQUESTER_ID sy-vline 
WA_BBP_IMS_INV_HEADER_STR-INVOICE_DATE sy-vline 
WA_BBP_IMS_INV_HEADER_STR-SOURCE sy-vline 
WA_BBP_IMS_INV_HEADER_STR-POSTING_DATE sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_ID sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_DESC sy-vline 
WA_BBP_IMS_INV_HEADER_STR-PAYMENT_TERMS sy-vline 
WA_BBP_IMS_INV_HEADER_STR-CURR sy-vline 
WA_BBP_IMS_INV_HEADER_STR-SUBTOTAL sy-vline 
WA_BBP_IMS_INV_HEADER_STR-TAX sy-vline 
WA_BBP_IMS_INV_HEADER_STR-SHIPPING sy-vline 
WA_BBP_IMS_INV_HEADER_STR-BALANCEDUE sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_CITY sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_POSTL_COD1 sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_STREET sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_HOUSE_NO sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_REGION sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_TEL1_NUMBR sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_TEL1_EXT sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_FAX_NUMBER sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_FAX_EXTENS sy-vline 
WA_BBP_IMS_INV_HEADER_STR-VENDOR_COUNTRY sy-vline 
WA_BBP_IMS_INV_HEADER_STR-COMP_CITY sy-vline 
WA_BBP_IMS_INV_HEADER_STR-COMP_POSTL_COD1 sy-vline 
WA_BBP_IMS_INV_HEADER_STR-COMP_STREET sy-vline 
WA_BBP_IMS_INV_HEADER_STR-COMP_HOUSE_NO sy-vline 
WA_BBP_IMS_INV_HEADER_STR-COMP_REGION sy-vline 
WA_BBP_IMS_INV_HEADER_STR-COMP_COUNTRY sy-vline 
WA_BBP_IMS_INV_HEADER_STR-COMP_DESC sy-vline 
WA_BBP_IMS_INV_HEADER_STR-BUKRS sy-vline 
WA_BBP_IMS_INV_HEADER_STR-BELNR sy-vline 
WA_BBP_IMS_INV_HEADER_STR-GJAHR sy-vline 
WA_BBP_IMS_INV_HEADER_STR-NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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