ABAP Select data from SAP table REBDOBJRSDETAILFLDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REBDOBJRSDETAILFLDS
*  INTO TABLE @DATA(IT_REBDOBJRSDETAILFLDS2).
*--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_REBDOBJRSDETAILFLDS INDEX 1 INTO DATA(WA_REBDOBJRSDETAILFLDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REBDOBJRSDETAILFLDS>-MANDT = 1.
<REBDOBJRSDETAILFLDS>-POOLSPACE = 1.
<REBDOBJRSDETAILFLDS>-XPOOLSPACE = 1.
<REBDOBJRSDETAILFLDS>-RENTALSPACE = 1.
<REBDOBJRSDETAILFLDS>-INTRENO_RS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REBDOBJRSDETAILFLDS-SMENR, sy-vline,
  WA_REBDOBJRSDETAILFLDS-XRENTALSPACE, sy-vline,
  WA_REBDOBJRSDETAILFLDS-VALIDFROM, sy-vline,
  WA_REBDOBJRSDETAILFLDS-VALIDTO, sy-vline,
  WA_REBDOBJRSDETAILFLDS-MEAS, sy-vline,
  WA_REBDOBJRSDETAILFLDS-XSMEAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REBDOBJRSDETAILFLDS 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_REBDOBJRSDETAILFLDS 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_REBDOBJRSDETAILFLDS INTO WA_REBDOBJRSDETAILFLDS.


*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 SMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_REBDOBJRSDETAILFLDS-SMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBDOBJRSDETAILFLDS-SMENR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MEASUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REBDOBJRSDETAILFLDS-MEASUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBDOBJRSDETAILFLDS-MEASUNIT.
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_REBDOBJRSDETAILFLDS_STR, 
MANDT TYPE STRING,
POOLSPACE TYPE STRING,
XPOOLSPACE TYPE STRING,
RENTALSPACE TYPE STRING,
INTRENO_RS TYPE STRING,
SMENR TYPE STRING,
XRENTALSPACE TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
MEAS TYPE STRING,
XSMEAS TYPE STRING,
MEASAVAIL TYPE STRING,
MEASVALUECMPL TYPE STRING,
MEASSELECTED TYPE STRING,
MEASWANTED TYPE STRING,
MEASSELECTEDPERC TYPE STRING,
MEASUNIT TYPE STRING,
MEASMASTER TYPE STRING,
RSSTATUS TYPE STRING,
MEASSTATUS TYPE STRING,
CELLTAB TYPE STRING,
COLORTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REBDOBJRSDETAILFLDS_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_REBDOBJRSDETAILFLDS_STR-MANDT sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-POOLSPACE sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-XPOOLSPACE sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-RENTALSPACE sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-INTRENO_RS sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-SMENR sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-XRENTALSPACE sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-VALIDFROM sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-VALIDTO sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-MEAS sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-XSMEAS sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-MEASAVAIL sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-MEASVALUECMPL sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-MEASSELECTED sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-MEASWANTED sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-MEASSELECTEDPERC sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-MEASUNIT sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-MEASMASTER sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-RSSTATUS sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-MEASSTATUS sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-CELLTAB sy-vline 
WA_REBDOBJRSDETAILFLDS_STR-COLORTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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