ABAP Select data from SAP table BUS_NAVIGATIONX_BUPA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BUS_NAVIGATIONX_BUPA
*  INTO TABLE @DATA(IT_BUS_NAVIGATIONX_BUPA2).
*--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_BUS_NAVIGATIONX_BUPA INDEX 1 INTO DATA(WA_BUS_NAVIGATIONX_BUPA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BUS_NAVIGATIONX_BUPA>-TRANSACTION_TIME = 1.
<BUS_NAVIGATIONX_BUPA>-ACTIVITY = 1.
<BUS_NAVIGATIONX_BUPA>-CREATION_TYPE = 1.
<BUS_NAVIGATIONX_BUPA>-CREATION_NUMBER = 1.
<BUS_NAVIGATIONX_BUPA>-CREATION_GROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BUS_NAVIGATIONX_BUPA-PARTNER_ROLE, sy-vline,
  WA_BUS_NAVIGATIONX_BUPA-PARTNER_ROLES, sy-vline,
  WA_BUS_NAVIGATIONX_BUPA-PARTNER_ROLE_IF_EXISTS, sy-vline,
  WA_BUS_NAVIGATIONX_BUPA-SUB_HEADER_ID, sy-vline,
  WA_BUS_NAVIGATIONX_BUPA-SUB_HEADER_TAB, sy-vline,
  WA_BUS_NAVIGATIONX_BUPA-FIELD_VALUES, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BUS_NAVIGATIONX_BUPA 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_BUS_NAVIGATIONX_BUPA 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_BUS_NAVIGATIONX_BUPA INTO WA_BUS_NAVIGATIONX_BUPA.


*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_BUS_NAVIGATIONX_BUPA_STR, 
TRANSACTION_TIME TYPE STRING,
ACTIVITY TYPE STRING,
CREATION_TYPE TYPE STRING,
CREATION_NUMBER TYPE STRING,
CREATION_GROUP TYPE STRING,
PARTNER_ROLE TYPE STRING,
PARTNER_ROLES TYPE STRING,
PARTNER_ROLE_IF_EXISTS TYPE STRING,
SUB_HEADER_ID TYPE STRING,
SUB_HEADER_TAB TYPE STRING,
FIELD_VALUES TYPE STRING,
ROLE_VALIDITY TYPE STRING,
CHANGEABLE_ROLES TYPE STRING,
PARTNER_TS TYPE STRING,
DEFAULT_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BUS_NAVIGATIONX_BUPA_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_BUS_NAVIGATIONX_BUPA_STR-TRANSACTION_TIME sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-ACTIVITY sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-CREATION_TYPE sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-CREATION_NUMBER sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-CREATION_GROUP sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-PARTNER_ROLE sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-PARTNER_ROLES sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-PARTNER_ROLE_IF_EXISTS sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-SUB_HEADER_ID sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-SUB_HEADER_TAB sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-FIELD_VALUES sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-ROLE_VALIDITY sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-CHANGEABLE_ROLES sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-PARTNER_TS sy-vline 
WA_BUS_NAVIGATIONX_BUPA_STR-DEFAULT_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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