ABAP Select data from SAP table BAPI_RE_TC_OBJECT 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_TC_OBJECT 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_TC_OBJECT. 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_TC_OBJECT 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_TC_OBJECT TYPE STANDARD TABLE OF BAPI_RE_TC_OBJECT,
      WA_BAPI_RE_TC_OBJECT TYPE BAPI_RE_TC_OBJECT,
      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_TC_OBJECT> TYPE BAPI_RE_TC_OBJECT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_RE_TC_OBJECT
*  INTO TABLE @DATA(IT_BAPI_RE_TC_OBJECT2).
*--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_TC_OBJECT INDEX 1 INTO DATA(WA_BAPI_RE_TC_OBJECT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_RE_TC_OBJECT>-IDENT_OBJECT_TYPE = 1.
<BAPI_RE_TC_OBJECT>-IDENT_KEY = 1.
<BAPI_RE_TC_OBJECT>-CREATION_USER = 1.
<BAPI_RE_TC_OBJECT>-CREATION_DATE = 1.
<BAPI_RE_TC_OBJECT>-CREATION_TIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_RE_TC_OBJECT-LASTCHANGE_USER, sy-vline,
  WA_BAPI_RE_TC_OBJECT-LASTCHANGE_DATE, sy-vline,
  WA_BAPI_RE_TC_OBJECT-LASTCHANGE_TIME, sy-vline,
  WA_BAPI_RE_TC_OBJECT-AUTHORIZATION_GROUP, sy-vline,
  WA_BAPI_RE_TC_OBJECT-RESPONSIBLE, sy-vline,
  WA_BAPI_RE_TC_OBJECT-STAT_PROF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_RE_TC_OBJECT 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_TC_OBJECT 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_TC_OBJECT INTO WA_BAPI_RE_TC_OBJECT.


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

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

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

*Conversion exit REDAT, internal->external for field SERVICE_PERIOD_END
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_TC_OBJECT-SERVICE_PERIOD_END
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_TC_OBJECT-SERVICE_PERIOD_END.
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_TC_OBJECT_STR, 
IDENT_OBJECT_TYPE TYPE STRING,
IDENT_KEY TYPE STRING,
CREATION_USER TYPE STRING,
CREATION_DATE TYPE STRING,
CREATION_TIME TYPE STRING,
LASTCHANGE_USER TYPE STRING,
LASTCHANGE_DATE TYPE STRING,
LASTCHANGE_TIME TYPE STRING,
AUTHORIZATION_GROUP TYPE STRING,
RESPONSIBLE TYPE STRING,
STAT_PROF TYPE STRING,
COMP_CODE TYPE STRING,
TC_OBJECT_NUMBER TYPE STRING,
TC_OBJECT_TEXT TYPE STRING,
TC_OBJECT_TYPE TYPE STRING,
TC_PERIOD_START TYPE STRING,
TC_PERIOD_END TYPE STRING,
FIRST_USAGE_DATE TYPE STRING,
SERVICE_PERIOD_START TYPE STRING,
SERVICE_PERIOD_END TYPE STRING,
TC_OBJECT_STATUS TYPE STRING,
CURRENCY TYPE STRING,
CURRENCY_ISO TYPE STRING,
ACCOUNTING_OBJECT_TYPE TYPE STRING,
ACCOUNTING_OBJECT_ID TYPE STRING,
FIRST_TC_DATE TYPE STRING,
ADDITIONAL_TEXT TYPE STRING,
TC_BASE_STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_RE_TC_OBJECT_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_TC_OBJECT_STR-IDENT_OBJECT_TYPE sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-IDENT_KEY sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-CREATION_USER sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-CREATION_DATE sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-CREATION_TIME sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-LASTCHANGE_USER sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-LASTCHANGE_DATE sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-LASTCHANGE_TIME sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-AUTHORIZATION_GROUP sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-RESPONSIBLE sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-STAT_PROF sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-COMP_CODE sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-TC_OBJECT_NUMBER sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-TC_OBJECT_TEXT sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-TC_OBJECT_TYPE sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-TC_PERIOD_START sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-TC_PERIOD_END sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-FIRST_USAGE_DATE sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-SERVICE_PERIOD_START sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-SERVICE_PERIOD_END sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-TC_OBJECT_STATUS sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-CURRENCY sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-CURRENCY_ISO sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-ACCOUNTING_OBJECT_TYPE sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-ACCOUNTING_OBJECT_ID sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-FIRST_TC_DATE sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-ADDITIONAL_TEXT sy-vline 
WA_BAPI_RE_TC_OBJECT_STR-TC_BASE_STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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