ABAP Select data from SAP table IREBUSENTITY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IREBUSENTITY
*  INTO TABLE @DATA(IT_IREBUSENTITY2).
*--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_IREBUSENTITY INDEX 1 INTO DATA(WA_IREBUSENTITY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IREBUSENTITY>-MANDT = 1.
<IREBUSENTITY>-INTERNALREALESTATENUMBER = 1.
<IREBUSENTITY>-COMPANYCODE = 1.
<IREBUSENTITY>-REBUSINESSENTITY = 1.
<IREBUSENTITY>-RESTATUSOBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IREBUSENTITY-REINTERNALFINNUMBER, sy-vline,
  WA_IREBUSENTITY-RECREATIONTYPE, sy-vline,
  WA_IREBUSENTITY-CREATEDBYUSER, sy-vline,
  WA_IREBUSENTITY-CREATIONDATE, sy-vline,
  WA_IREBUSENTITY-CREATIONTIME, sy-vline,
  WA_IREBUSENTITY-RESOURCEOFCREATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IREBUSENTITY 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_IREBUSENTITY 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_IREBUSENTITY INTO WA_IREBUSENTITY.


*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 CUNIT, internal->external for field REAREAUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IREBUSENTITY-REAREAUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IREBUSENTITY-REAREAUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RECUBICUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IREBUSENTITY-RECUBICUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IREBUSENTITY-RECUBICUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RELENGTHUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IREBUSENTITY-RELENGTHUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IREBUSENTITY-RELENGTHUNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field REFUNCTIONOFOBJECT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IREBUSENTITY-REFUNCTIONOFOBJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IREBUSENTITY-REFUNCTIONOFOBJECT.
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_IREBUSENTITY_STR, 
MANDT TYPE STRING,
INTERNALREALESTATENUMBER TYPE STRING,
COMPANYCODE TYPE STRING,
REBUSINESSENTITY TYPE STRING,
RESTATUSOBJECT TYPE STRING,
REINTERNALFINNUMBER TYPE STRING,
RECREATIONTYPE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
RESOURCEOFCREATION TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
RESOURCEOFCHANGE TYPE STRING,
RESPONSIBLE TYPE STRING,
REUSEREXCLUSIVE TYPE STRING,
REAUTHORIZATIONGROUP TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
REBUSINESSENTITYNAME TYPE STRING,
CURRENCY TYPE STRING,
REAREAUNIT TYPE STRING,
RECUBICUNIT TYPE STRING,
RELENGTHUNIT TYPE STRING,
REMAINTENANCEDISTRICT TYPE STRING,
REREGIONALLOCATION TYPE STRING,
RETRANSPORTCONNECTIONBUSENTITY TYPE STRING,
RELOCATIONNUMBERBUSENTITY TYPE STRING,
REDISTRICTLOCATION TYPE STRING,
RETENANCYLAW TYPE STRING,
RELISTOFRENTS TYPE STRING,
REPRDFNDOPERATINGCOSTSETTLMT TYPE STRING,
REPRDFNDHEATINGCOSTSETTLMT TYPE STRING,
REAUTOMCRTNOFFUNCNLLOCISOFF TYPE STRING,
RENEIGHBORHOOD01TEXT TYPE STRING,
RENEIGHBORHOOD02TEXT TYPE STRING,
RENEIGHBORHOOD03TEXT TYPE STRING,
REFUNCTIONOFOBJECT TYPE STRING,
REALESTATEOBJECTTYPE TYPE STRING,
REIDENTIFICATIONKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IREBUSENTITY_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_IREBUSENTITY_STR-MANDT sy-vline 
WA_IREBUSENTITY_STR-INTERNALREALESTATENUMBER sy-vline 
WA_IREBUSENTITY_STR-COMPANYCODE sy-vline 
WA_IREBUSENTITY_STR-REBUSINESSENTITY sy-vline 
WA_IREBUSENTITY_STR-RESTATUSOBJECT sy-vline 
WA_IREBUSENTITY_STR-REINTERNALFINNUMBER sy-vline 
WA_IREBUSENTITY_STR-RECREATIONTYPE sy-vline 
WA_IREBUSENTITY_STR-CREATEDBYUSER sy-vline 
WA_IREBUSENTITY_STR-CREATIONDATE sy-vline 
WA_IREBUSENTITY_STR-CREATIONTIME sy-vline 
WA_IREBUSENTITY_STR-RESOURCEOFCREATION sy-vline 
WA_IREBUSENTITY_STR-LASTCHANGEDBYUSER sy-vline 
WA_IREBUSENTITY_STR-LASTCHANGEDATE sy-vline 
WA_IREBUSENTITY_STR-LASTCHANGETIME sy-vline 
WA_IREBUSENTITY_STR-RESOURCEOFCHANGE sy-vline 
WA_IREBUSENTITY_STR-RESPONSIBLE sy-vline 
WA_IREBUSENTITY_STR-REUSEREXCLUSIVE sy-vline 
WA_IREBUSENTITY_STR-REAUTHORIZATIONGROUP sy-vline 
WA_IREBUSENTITY_STR-VALIDITYSTARTDATE sy-vline 
WA_IREBUSENTITY_STR-VALIDITYENDDATE sy-vline 
WA_IREBUSENTITY_STR-REBUSINESSENTITYNAME sy-vline 
WA_IREBUSENTITY_STR-CURRENCY sy-vline 
WA_IREBUSENTITY_STR-REAREAUNIT sy-vline 
WA_IREBUSENTITY_STR-RECUBICUNIT sy-vline 
WA_IREBUSENTITY_STR-RELENGTHUNIT sy-vline 
WA_IREBUSENTITY_STR-REMAINTENANCEDISTRICT sy-vline 
WA_IREBUSENTITY_STR-REREGIONALLOCATION sy-vline 
WA_IREBUSENTITY_STR-RETRANSPORTCONNECTIONBUSENTITY sy-vline 
WA_IREBUSENTITY_STR-RELOCATIONNUMBERBUSENTITY sy-vline 
WA_IREBUSENTITY_STR-REDISTRICTLOCATION sy-vline 
WA_IREBUSENTITY_STR-RETENANCYLAW sy-vline 
WA_IREBUSENTITY_STR-RELISTOFRENTS sy-vline 
WA_IREBUSENTITY_STR-REPRDFNDOPERATINGCOSTSETTLMT sy-vline 
WA_IREBUSENTITY_STR-REPRDFNDHEATINGCOSTSETTLMT sy-vline 
WA_IREBUSENTITY_STR-REAUTOMCRTNOFFUNCNLLOCISOFF sy-vline 
WA_IREBUSENTITY_STR-RENEIGHBORHOOD01TEXT sy-vline 
WA_IREBUSENTITY_STR-RENEIGHBORHOOD02TEXT sy-vline 
WA_IREBUSENTITY_STR-RENEIGHBORHOOD03TEXT sy-vline 
WA_IREBUSENTITY_STR-REFUNCTIONOFOBJECT sy-vline 
WA_IREBUSENTITY_STR-REALESTATEOBJECTTYPE sy-vline 
WA_IREBUSENTITY_STR-REIDENTIFICATIONKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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