ABAP Select data from SAP table REBD_RENTAL_OBJECT_IDENT_CI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REBD_RENTAL_OBJECT_IDENT_CI
*  INTO TABLE @DATA(IT_REBD_RENTAL_OBJECT_IDENT_CI2).
*--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_REBD_RENTAL_OBJECT_IDENT_CI INDEX 1 INTO DATA(WA_REBD_RENTAL_OBJECT_IDENT_CI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REBD_RENTAL_OBJECT_IDENT_CI>-OBJNR = 1.
<REBD_RENTAL_OBJECT_IDENT_CI>-OBJTYPE = 1.
<REBD_RENTAL_OBJECT_IDENT_CI>-OBJID = 1.
<REBD_RENTAL_OBJECT_IDENT_CI>-DUMMYFIELD = 1.
<REBD_RENTAL_OBJECT_IDENT_CI>-EDID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REBD_RENTAL_OBJECT_IDENT_CI-EGID, sy-vline,
  WA_REBD_RENTAL_OBJECT_IDENT_CI-FLOOR, sy-vline,
  WA_REBD_RENTAL_OBJECT_IDENT_CI-FLOORLOC, sy-vline,
  WA_REBD_RENTAL_OBJECT_IDENT_CI-EWID, sy-vline,
  WA_REBD_RENTAL_OBJECT_IDENT_CI-KITCHEN, sy-vline,
  WA_REBD_RENTAL_OBJECT_IDENT_CI-ADMINNO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REBD_RENTAL_OBJECT_IDENT_CI 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_REBD_RENTAL_OBJECT_IDENT_CI 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_REBD_RENTAL_OBJECT_IDENT_CI INTO WA_REBD_RENTAL_OBJECT_IDENT_CI.


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

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

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

*Conversion exit ALPHA, internal->external for field DOORNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REBD_RENTAL_OBJECT_IDENT_CI-DOORNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBD_RENTAL_OBJECT_IDENT_CI-DOORNO.
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_REBD_RENTAL_OBJECT_IDENT_CI_STR, 
OBJNR TYPE STRING,
OBJTYPE TYPE STRING,
OBJID TYPE STRING,
DUMMYFIELD TYPE STRING,
EDID TYPE STRING,
EGID TYPE STRING,
FLOOR TYPE STRING,
FLOORLOC TYPE STRING,
EWID TYPE STRING,
KITCHEN TYPE STRING,
ADMINNO TYPE STRING,
DOORNO TYPE STRING,
OBJCOND TYPE STRING,
YEARDECONSTR TYPE STRING,
NUMROOMS TYPE STRING,
LIVINGAREA TYPE STRING,
USAGETYPE TYPE STRING,
GEMEINDECH TYPE STRING,
PROTCV TYPE STRING,
LLPMON TYPE STRING,
CAREHOME TYPE STRING,
STATMON TYPE STRING,
VPT TYPE STRING,
VPTCURRENCY TYPE STRING,
CONDK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REBD_RENTAL_OBJECT_IDENT_CI_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_REBD_RENTAL_OBJECT_IDENT_CI_STR-OBJNR sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-OBJTYPE sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-OBJID sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-DUMMYFIELD sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-EDID sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-EGID sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-FLOOR sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-FLOORLOC sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-EWID sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-KITCHEN sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-ADMINNO sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-DOORNO sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-OBJCOND sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-YEARDECONSTR sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-NUMROOMS sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-LIVINGAREA sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-USAGETYPE sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-GEMEINDECH sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-PROTCV sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-LLPMON sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-CAREHOME sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-STATMON sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-VPT sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-VPTCURRENCY sy-vline 
WA_REBD_RENTAL_OBJECT_IDENT_CI_STR-CONDK sy-vline      INTO ld_text SEPARATED BY SPACE.

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