ABAP Select data from SAP table REXC_CH_AJR_OBJECT_C into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXC_CH_AJR_OBJECT_C
*  INTO TABLE @DATA(IT_REXC_CH_AJR_OBJECT_C2).
*--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_REXC_CH_AJR_OBJECT_C INDEX 1 INTO DATA(WA_REXC_CH_AJR_OBJECT_C2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXC_CH_AJR_OBJECT_C>-BUKRS = 1.
<REXC_CH_AJR_OBJECT_C>-RECNNR = 1.
<REXC_CH_AJR_OBJECT_C>-RECNTXT = 1.
<REXC_CH_AJR_OBJECT_C>-XRECNTYPE = 1.
<REXC_CH_AJR_OBJECT_C>-OBJNRSRC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXC_CH_AJR_OBJECT_C-OBJASSTYPE, sy-vline,
  WA_REXC_CH_AJR_OBJECT_C-OBJNRTRG, sy-vline,
  WA_REXC_CH_AJR_OBJECT_C-VALIDFROM, sy-vline,
  WA_REXC_CH_AJR_OBJECT_C-VALIDTO, sy-vline,
  WA_REXC_CH_AJR_OBJECT_C-OBJTYPESRC, sy-vline,
  WA_REXC_CH_AJR_OBJECT_C-OBJTYPETRG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXC_CH_AJR_OBJECT_C 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_REXC_CH_AJR_OBJECT_C 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_REXC_CH_AJR_OBJECT_C INTO WA_REXC_CH_AJR_OBJECT_C.


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

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

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

*Conversion exit ALPHA, internal->external for field XSTOCKK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REXC_CH_AJR_OBJECT_C-XSTOCKK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXC_CH_AJR_OBJECT_C-XSTOCKK.
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_REXC_CH_AJR_OBJECT_C_STR, 
BUKRS TYPE STRING,
RECNNR TYPE STRING,
RECNTXT TYPE STRING,
XRECNTYPE TYPE STRING,
OBJNRSRC TYPE STRING,
OBJASSTYPE TYPE STRING,
OBJNRTRG TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
OBJTYPESRC TYPE STRING,
OBJTYPETRG TYPE STRING,
XOBJTYPESRC TYPE STRING,
XOBJTYPETRG TYPE STRING,
IDENTSRC TYPE STRING,
IDENTTRG TYPE STRING,
IDENTKEYSRC TYPE STRING,
IDENTKEYTRG TYPE STRING,
DESCRIPTIONSRC TYPE STRING,
DESCRIPTIONTRG TYPE STRING,
XLOBJTYPESRC TYPE STRING,
XLOBJTYPETRG TYPE STRING,
ADROBJTYP TYPE STRING,
ADROBJNR TYPE STRING,
OBTYP TYPE STRING,
ADRNR TYPE STRING,
ADRNR_ORI TYPE STRING,
OBJNR_HI TYPE STRING,
ADRZUS TYPE STRING,
XADDRESS TYPE STRING,
CITY1 TYPE STRING,
CITY2 TYPE STRING,
POST_CODE1 TYPE STRING,
STREET TYPE STRING,
HOUSE_NUM1 TYPE STRING,
HOUSE_NUM2 TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
XMETXT TYPE STRING,
XWETEXT TYPE STRING,
XGRTXT TYPE STRING,
XGETXT TYPE STRING,
XLROTYPE TYPE STRING,
XMBEZ TYPE STRING,
XSTOCKK TYPE STRING,
XSTOCKL TYPE STRING,
XKLGESCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REXC_CH_AJR_OBJECT_C_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_REXC_CH_AJR_OBJECT_C_STR-BUKRS sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-RECNNR sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-RECNTXT sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XRECNTYPE sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-OBJNRSRC sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-OBJASSTYPE sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-OBJNRTRG sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-VALIDFROM sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-VALIDTO sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-OBJTYPESRC sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-OBJTYPETRG sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XOBJTYPESRC sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XOBJTYPETRG sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-IDENTSRC sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-IDENTTRG sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-IDENTKEYSRC sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-IDENTKEYTRG sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-DESCRIPTIONSRC sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-DESCRIPTIONTRG sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XLOBJTYPESRC sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XLOBJTYPETRG sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-ADROBJTYP sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-ADROBJNR sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-OBTYP sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-ADRNR sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-ADRNR_ORI sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-OBJNR_HI sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-ADRZUS sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XADDRESS sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-CITY1 sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-CITY2 sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-POST_CODE1 sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-STREET sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-HOUSE_NUM1 sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-HOUSE_NUM2 sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-COUNTRY sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-REGION sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XMETXT sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XWETEXT sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XGRTXT sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XGETXT sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XLROTYPE sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XMBEZ sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XSTOCKK sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XSTOCKL sy-vline 
WA_REXC_CH_AJR_OBJECT_C_STR-XKLGESCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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