ABAP Select data from SAP table BAPI_RE_RENT_OBJ_REL_INT 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_RENT_OBJ_REL_INT 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_RENT_OBJ_REL_INT. 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_RENT_OBJ_REL_INT 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_RENT_OBJ_REL_INT TYPE STANDARD TABLE OF BAPI_RE_RENT_OBJ_REL_INT,
      WA_BAPI_RE_RENT_OBJ_REL_INT TYPE BAPI_RE_RENT_OBJ_REL_INT,
      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_RENT_OBJ_REL_INT> TYPE BAPI_RE_RENT_OBJ_REL_INT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_RE_RENT_OBJ_REL_INT
*  INTO TABLE @DATA(IT_BAPI_RE_RENT_OBJ_REL_INT2).
*--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_RENT_OBJ_REL_INT INDEX 1 INTO DATA(WA_BAPI_RE_RENT_OBJ_REL_INT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_RE_RENT_OBJ_REL_INT>-OBJNR = 1.
<BAPI_RE_RENT_OBJ_REL_INT>-OBJTYPE = 1.
<BAPI_RE_RENT_OBJ_REL_INT>-OBJID = 1.
<BAPI_RE_RENT_OBJ_REL_INT>-INTRENOSRC = 1.
<BAPI_RE_RENT_OBJ_REL_INT>-SMENRPS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_RE_RENT_OBJ_REL_INT-INTRENOTRG, sy-vline,
  WA_BAPI_RE_RENT_OBJ_REL_INT-SMENRRS, sy-vline,
  WA_BAPI_RE_RENT_OBJ_REL_INT-VALIDFROM, sy-vline,
  WA_BAPI_RE_RENT_OBJ_REL_INT-VALIDTO, sy-vline,
  WA_BAPI_RE_RENT_OBJ_REL_INT-TYPESRC, sy-vline,
  WA_BAPI_RE_RENT_OBJ_REL_INT-TYPETRG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_RE_RENT_OBJ_REL_INT 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_RENT_OBJ_REL_INT 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_RENT_OBJ_REL_INT INTO WA_BAPI_RE_RENT_OBJ_REL_INT.


*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 SMENR, internal->external for field SMENRPS
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_RENT_OBJ_REL_INT-SMENRPS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_RENT_OBJ_REL_INT-SMENRPS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field SMENRRS
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_RENT_OBJ_REL_INT-SMENRRS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_RENT_OBJ_REL_INT-SMENRRS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_RENT_OBJ_REL_INT-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_RENT_OBJ_REL_INT-VALIDTO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit REDAT, internal->external for field MEASVALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_RENT_OBJ_REL_INT-MEASVALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_RENT_OBJ_REL_INT-MEASVALIDTO.
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_RENT_OBJ_REL_INT_STR, 
OBJNR TYPE STRING,
OBJTYPE TYPE STRING,
OBJID TYPE STRING,
INTRENOSRC TYPE STRING,
SMENRPS TYPE STRING,
INTRENOTRG TYPE STRING,
SMENRRS TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
TYPESRC TYPE STRING,
TYPETRG TYPE STRING,
MEAS TYPE STRING,
MEASVALIDFROM TYPE STRING,
MEASVALIDTO TYPE STRING,
ASSIGNPART TYPE STRING,
ASSIGNFULL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_RE_RENT_OBJ_REL_INT_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_RENT_OBJ_REL_INT_STR-OBJNR sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-OBJTYPE sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-OBJID sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-INTRENOSRC sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-SMENRPS sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-INTRENOTRG sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-SMENRRS sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-VALIDFROM sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-VALIDTO sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-TYPESRC sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-TYPETRG sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-MEAS sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-MEASVALIDFROM sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-MEASVALIDTO sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-ASSIGNPART sy-vline 
WA_BAPI_RE_RENT_OBJ_REL_INT_STR-ASSIGNFULL sy-vline      INTO ld_text SEPARATED BY SPACE.

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