ABAP Select data from SAP table BAPI_RE_BUS_ENTITY_DATX into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPI_RE_BUS_ENTITY_DATX 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_RE_BUS_ENTITY_DATX. 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_RE_BUS_ENTITY_DATX 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_RE_BUS_ENTITY_DATX TYPE STANDARD TABLE OF BAPI_RE_BUS_ENTITY_DATX,
      WA_BAPI_RE_BUS_ENTITY_DATX TYPE BAPI_RE_BUS_ENTITY_DATX,
      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_RE_BUS_ENTITY_DATX> TYPE BAPI_RE_BUS_ENTITY_DATX.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_RE_BUS_ENTITY_DATX
*  INTO TABLE @DATA(IT_BAPI_RE_BUS_ENTITY_DATX2).
*--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_RE_BUS_ENTITY_DATX INDEX 1 INTO DATA(WA_BAPI_RE_BUS_ENTITY_DATX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_RE_BUS_ENTITY_DATX>-SET_ALL = 1.
<BAPI_RE_BUS_ENTITY_DATX>-BUSINESS_ENTITY_TEXT = 1.
<BAPI_RE_BUS_ENTITY_DATX>-MAINTENANCE_AREA = 1.
<BAPI_RE_BUS_ENTITY_DATX>-TRANSPORT_CONNECTION = 1.
<BAPI_RE_BUS_ENTITY_DATX>-LOCATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_RE_BUS_ENTITY_DATX-DISTRICT_LOCATION, sy-vline,
  WA_BAPI_RE_BUS_ENTITY_DATX-REGIONAL_LOCATION, sy-vline,
  WA_BAPI_RE_BUS_ENTITY_DATX-REPR_LIST_OF_RENTS, sy-vline,
  WA_BAPI_RE_BUS_ENTITY_DATX-UNIT_AREA, sy-vline,
  WA_BAPI_RE_BUS_ENTITY_DATX-UNIT_VOLUME, sy-vline,
  WA_BAPI_RE_BUS_ENTITY_DATX-UNIT_LENGTH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_RE_BUS_ENTITY_DATX 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_RE_BUS_ENTITY_DATX 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_RE_BUS_ENTITY_DATX INTO WA_BAPI_RE_BUS_ENTITY_DATX.


*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_RE_BUS_ENTITY_DATX_STR, 
SET_ALL TYPE STRING,
BUSINESS_ENTITY_TEXT TYPE STRING,
MAINTENANCE_AREA TYPE STRING,
TRANSPORT_CONNECTION TYPE STRING,
LOCATION TYPE STRING,
DISTRICT_LOCATION TYPE STRING,
REGIONAL_LOCATION TYPE STRING,
REPR_LIST_OF_RENTS TYPE STRING,
UNIT_AREA TYPE STRING,
UNIT_VOLUME TYPE STRING,
UNIT_LENGTH TYPE STRING,
TENANCY_LAW TYPE STRING,
PREDEF_OPERATION_COSTS TYPE STRING,
PREDEF_HEATING_EXPENSES TYPE STRING,
AUTHORIZATION_GROUP TYPE STRING,
AUTO_FUNC_LOC_DISABLED TYPE STRING,
OBJECT_VALID_FROM TYPE STRING,
OBJECT_VALID_TO TYPE STRING,
RESPONSIBLE TYPE STRING,
STAT_PROF TYPE STRING,
NEIGHBORHOOD_01 TYPE STRING,
NEIGHBORHOOD_02 TYPE STRING,
NEIGHBORHOOD_03 TYPE STRING,
MANDATE_OBJECT_ID TYPE STRING,
MANDATE_MNG_OBJECT_ID TYPE STRING,
MANDATE_CR_OBJECT_ID TYPE STRING,
FUNCTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_RE_BUS_ENTITY_DATX_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_RE_BUS_ENTITY_DATX_STR-SET_ALL sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-BUSINESS_ENTITY_TEXT sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-MAINTENANCE_AREA sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-TRANSPORT_CONNECTION sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-LOCATION sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-DISTRICT_LOCATION sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-REGIONAL_LOCATION sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-REPR_LIST_OF_RENTS sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-UNIT_AREA sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-UNIT_VOLUME sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-UNIT_LENGTH sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-TENANCY_LAW sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-PREDEF_OPERATION_COSTS sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-PREDEF_HEATING_EXPENSES sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-AUTHORIZATION_GROUP sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-AUTO_FUNC_LOC_DISABLED sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-OBJECT_VALID_FROM sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-OBJECT_VALID_TO sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-RESPONSIBLE sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-STAT_PROF sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-NEIGHBORHOOD_01 sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-NEIGHBORHOOD_02 sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-NEIGHBORHOOD_03 sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-MANDATE_OBJECT_ID sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-MANDATE_MNG_OBJECT_ID sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-MANDATE_CR_OBJECT_ID sy-vline 
WA_BAPI_RE_BUS_ENTITY_DATX_STR-FUNCTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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