ABAP Select data from SAP table BAPI_RE_RENTAL_OBJECT_DAT 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_RENTAL_OBJECT_DAT 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_RENTAL_OBJECT_DAT. 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_RENTAL_OBJECT_DAT 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_RENTAL_OBJECT_DAT TYPE STANDARD TABLE OF BAPI_RE_RENTAL_OBJECT_DAT,
      WA_BAPI_RE_RENTAL_OBJECT_DAT TYPE BAPI_RE_RENTAL_OBJECT_DAT,
      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_RENTAL_OBJECT_DAT> TYPE BAPI_RE_RENTAL_OBJECT_DAT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_RE_RENTAL_OBJECT_DAT
*  INTO TABLE @DATA(IT_BAPI_RE_RENTAL_OBJECT_DAT2).
*--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_RENTAL_OBJECT_DAT INDEX 1 INTO DATA(WA_BAPI_RE_RENTAL_OBJECT_DAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_RE_RENTAL_OBJECT_DAT>-RENTAL_OBJECT_TEXT = 1.
<BAPI_RE_RENTAL_OBJECT_DAT>-PROPERTY = 1.
<BAPI_RE_RENTAL_OBJECT_DAT>-BUILDING = 1.
<BAPI_RE_RENTAL_OBJECT_DAT>-RENTAL_UNIT_OLD_SYSTEM = 1.
<BAPI_RE_RENTAL_OBJECT_DAT>-INITIAL_USAGE_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_RE_RENTAL_OBJECT_DAT-SUBSEQUENT_RENTAL_DATE, sy-vline,
  WA_BAPI_RE_RENTAL_OBJECT_DAT-RESERVED_FROM, sy-vline,
  WA_BAPI_RE_RENTAL_OBJECT_DAT-RESERVED_TO, sy-vline,
  WA_BAPI_RE_RENTAL_OBJECT_DAT-BUILDING_PART, sy-vline,
  WA_BAPI_RE_RENTAL_OBJECT_DAT-FIXTURES_FITTINGS_CATEGORY, sy-vline,
  WA_BAPI_RE_RENTAL_OBJECT_DAT-INCR_OR_REDUCT_TO_REP_RENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_RE_RENTAL_OBJECT_DAT 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_RENTAL_OBJECT_DAT 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_RENTAL_OBJECT_DAT INTO WA_BAPI_RE_RENTAL_OBJECT_DAT.


*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 SGRNR, internal->external for field PROPERTY
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_RENTAL_OBJECT_DAT-PROPERTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_RENTAL_OBJECT_DAT-PROPERTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field BUILDING
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_RENTAL_OBJECT_DAT-BUILDING
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_RENTAL_OBJECT_DAT-BUILDING.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit REDAT, internal->external for field OBJECT_VALID_TO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_RENTAL_OBJECT_DAT-OBJECT_VALID_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_RENTAL_OBJECT_DAT-OBJECT_VALID_TO.
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_BAPI_RE_RENTAL_OBJECT_DAT_STR, 
RENTAL_OBJECT_TEXT TYPE STRING,
PROPERTY TYPE STRING,
BUILDING TYPE STRING,
RENTAL_UNIT_OLD_SYSTEM TYPE STRING,
INITIAL_USAGE_DATE TYPE STRING,
SUBSEQUENT_RENTAL_DATE TYPE STRING,
RESERVED_FROM TYPE STRING,
RESERVED_TO TYPE STRING,
BUILDING_PART TYPE STRING,
FIXTURES_FITTINGS_CATEGORY TYPE STRING,
INCR_OR_REDUCT_TO_REP_RENT TYPE STRING,
BASE_VAL_FOR_GROUPING_IN_RLR TYPE STRING,
PERC_VAL_FOR_GROUPING_IN_RLR TYPE STRING,
PERCENTAGE_RATE_INCREASE TYPE STRING,
RSN_FOR_VARIANCE_IN_PERC_INC TYPE STRING,
PARKING_SPACE_NO TYPE STRING,
IS_SEPARATE_OWNERSHIP TYPE STRING,
FLOOR TYPE STRING,
LOCATION_ON_FLOOR TYPE STRING,
TOP_FLOOR TYPE STRING,
MODERNIZATION_DATE TYPE STRING,
IS_COMMON_USAGE_POSSIBLE TYPE STRING,
FIRST_POSTING_DATE TYPE STRING,
AUTHORIZATION_GROUP TYPE STRING,
HAS_CURR_OCC_PRINC TYPE STRING,
OBJECT_VALID_FROM TYPE STRING,
OBJECT_VALID_TO TYPE STRING,
RESPONSIBLE TYPE STRING,
STAT_PROF TYPE STRING,
CASH_FLOW_LOCKED_TO_DATE TYPE STRING,
NOT_CONSIDER_RE_SEARCH TYPE STRING,
NEIGHBORHOOD_01 TYPE STRING,
NEIGHBORHOOD_02 TYPE STRING,
NEIGHBORHOOD_03 TYPE STRING,
IS_COMMON_PROPERTY TYPE STRING,
MANDATE_OBJECT_ID TYPE STRING,
MANDATE_MNG_OBJECT_ID TYPE STRING,
MANDATE_CR_OBJECT_ID TYPE STRING,
USES_REPR_LIST_OF_RENTS TYPE STRING,
CASH_FLOW_START_DATE TYPE STRING,
POSTING_START_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_RE_RENTAL_OBJECT_DAT_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_RENTAL_OBJECT_DAT_STR-RENTAL_OBJECT_TEXT sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-PROPERTY sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-BUILDING sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-RENTAL_UNIT_OLD_SYSTEM sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-INITIAL_USAGE_DATE sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-SUBSEQUENT_RENTAL_DATE sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-RESERVED_FROM sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-RESERVED_TO sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-BUILDING_PART sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-FIXTURES_FITTINGS_CATEGORY sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-INCR_OR_REDUCT_TO_REP_RENT sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-BASE_VAL_FOR_GROUPING_IN_RLR sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-PERC_VAL_FOR_GROUPING_IN_RLR sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-PERCENTAGE_RATE_INCREASE sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-RSN_FOR_VARIANCE_IN_PERC_INC sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-PARKING_SPACE_NO sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-IS_SEPARATE_OWNERSHIP sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-FLOOR sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-LOCATION_ON_FLOOR sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-TOP_FLOOR sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-MODERNIZATION_DATE sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-IS_COMMON_USAGE_POSSIBLE sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-FIRST_POSTING_DATE sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-AUTHORIZATION_GROUP sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-HAS_CURR_OCC_PRINC sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-OBJECT_VALID_FROM sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-OBJECT_VALID_TO sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-RESPONSIBLE sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-STAT_PROF sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-CASH_FLOW_LOCKED_TO_DATE sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-NOT_CONSIDER_RE_SEARCH sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-NEIGHBORHOOD_01 sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-NEIGHBORHOOD_02 sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-NEIGHBORHOOD_03 sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-IS_COMMON_PROPERTY sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-MANDATE_OBJECT_ID sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-MANDATE_MNG_OBJECT_ID sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-MANDATE_CR_OBJECT_ID sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-USES_REPR_LIST_OF_RENTS sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-CASH_FLOW_START_DATE sy-vline 
WA_BAPI_RE_RENTAL_OBJECT_DAT_STR-POSTING_START_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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