ABAP Select data from SAP table REXA_GUI_OP_RECORD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXA_GUI_OP_RECORD
*  INTO TABLE @DATA(IT_REXA_GUI_OP_RECORD2).
*--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_REXA_GUI_OP_RECORD INDEX 1 INTO DATA(WA_REXA_GUI_OP_RECORD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXA_GUI_OP_RECORD>-BUKRS = 1.
<REXA_GUI_OP_RECORD>-AMOUNT = 1.
<REXA_GUI_OP_RECORD>-GROSSAMOUNT = 1.
<REXA_GUI_OP_RECORD>-NETAMOUNT = 1.
<REXA_GUI_OP_RECORD>-TAXAMOUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXA_GUI_OP_RECORD-CURRENCY, sy-vline,
  WA_REXA_GUI_OP_RECORD-PARTNER, sy-vline,
  WA_REXA_GUI_OP_RECORD-RECNNR, sy-vline,
  WA_REXA_GUI_OP_RECORD-CNACCT, sy-vline,
  WA_REXA_GUI_OP_RECORD-PSTNGDATE, sy-vline,
  WA_REXA_GUI_OP_RECORD-DOCDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXA_GUI_OP_RECORD 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_REXA_GUI_OP_RECORD 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_REXA_GUI_OP_RECORD INTO WA_REXA_GUI_OP_RECORD.


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

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

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

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

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

*Conversion exit FMCIL, internal->external for field COMMITMENTITEM
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_REXA_GUI_OP_RECORD-COMMITMENTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXA_GUI_OP_RECORD-COMMITMENTITEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REXA_GUI_OP_RECORD-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXA_GUI_OP_RECORD-VTREF.
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_REXA_GUI_OP_RECORD_STR, 
BUKRS TYPE STRING,
AMOUNT TYPE STRING,
GROSSAMOUNT TYPE STRING,
NETAMOUNT TYPE STRING,
TAXAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
PARTNER TYPE STRING,
RECNNR TYPE STRING,
CNACCT TYPE STRING,
PSTNGDATE TYPE STRING,
DOCDATE TYPE STRING,
BLINEDATE TYPE STRING,
HEADERTXT TYPE STRING,
ITEMTXT TYPE STRING,
FLOWTYPE TYPE STRING,
ACCDETKEY TYPE STRING,
TAXTYPE TYPE STRING,
TAXGROUP TYPE STRING,
PARTNEROBJ TYPE STRING,
PARTNEROBJNR TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
FUND TYPE STRING,
FUNDSCENTER TYPE STRING,
COMMITMENTITEM TYPE STRING,
FUNCTIONALAREA TYPE STRING,
GRANTNUMBER TYPE STRING,
MEASURE TYPE STRING,
BUDGETPERIOD TYPE STRING,
PYMTMETH TYPE STRING,
PYMTBLOCK TYPE STRING,
BANKDETAILID TYPE STRING,
NOTETOPAYEE TYPE STRING,
DUNNBLOCK TYPE STRING,
SEPAMNDID TYPE STRING,
SEPARECCRDID TYPE STRING,
NETAMOUNTENTRY TYPE STRING,
RECNTXT TYPE STRING,
CCTXT TYPE STRING,
XBPNAME TYPE STRING,
OBJTEXT TYPE STRING,
XCNACCT TYPE STRING,
VTREF TYPE STRING,
SUBAP TYPE STRING,
OPACT TYPE STRING,
XOPACT TYPE STRING,
EXTREFERENCENO TYPE STRING,
TAXDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REXA_GUI_OP_RECORD_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_REXA_GUI_OP_RECORD_STR-BUKRS sy-vline 
WA_REXA_GUI_OP_RECORD_STR-AMOUNT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-GROSSAMOUNT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-NETAMOUNT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-TAXAMOUNT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-CURRENCY sy-vline 
WA_REXA_GUI_OP_RECORD_STR-PARTNER sy-vline 
WA_REXA_GUI_OP_RECORD_STR-RECNNR sy-vline 
WA_REXA_GUI_OP_RECORD_STR-CNACCT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-PSTNGDATE sy-vline 
WA_REXA_GUI_OP_RECORD_STR-DOCDATE sy-vline 
WA_REXA_GUI_OP_RECORD_STR-BLINEDATE sy-vline 
WA_REXA_GUI_OP_RECORD_STR-HEADERTXT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-ITEMTXT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-FLOWTYPE sy-vline 
WA_REXA_GUI_OP_RECORD_STR-ACCDETKEY sy-vline 
WA_REXA_GUI_OP_RECORD_STR-TAXTYPE sy-vline 
WA_REXA_GUI_OP_RECORD_STR-TAXGROUP sy-vline 
WA_REXA_GUI_OP_RECORD_STR-PARTNEROBJ sy-vline 
WA_REXA_GUI_OP_RECORD_STR-PARTNEROBJNR sy-vline 
WA_REXA_GUI_OP_RECORD_STR-GSBER sy-vline 
WA_REXA_GUI_OP_RECORD_STR-PRCTR sy-vline 
WA_REXA_GUI_OP_RECORD_STR-FUND sy-vline 
WA_REXA_GUI_OP_RECORD_STR-FUNDSCENTER sy-vline 
WA_REXA_GUI_OP_RECORD_STR-COMMITMENTITEM sy-vline 
WA_REXA_GUI_OP_RECORD_STR-FUNCTIONALAREA sy-vline 
WA_REXA_GUI_OP_RECORD_STR-GRANTNUMBER sy-vline 
WA_REXA_GUI_OP_RECORD_STR-MEASURE sy-vline 
WA_REXA_GUI_OP_RECORD_STR-BUDGETPERIOD sy-vline 
WA_REXA_GUI_OP_RECORD_STR-PYMTMETH sy-vline 
WA_REXA_GUI_OP_RECORD_STR-PYMTBLOCK sy-vline 
WA_REXA_GUI_OP_RECORD_STR-BANKDETAILID sy-vline 
WA_REXA_GUI_OP_RECORD_STR-NOTETOPAYEE sy-vline 
WA_REXA_GUI_OP_RECORD_STR-DUNNBLOCK sy-vline 
WA_REXA_GUI_OP_RECORD_STR-SEPAMNDID sy-vline 
WA_REXA_GUI_OP_RECORD_STR-SEPARECCRDID sy-vline 
WA_REXA_GUI_OP_RECORD_STR-NETAMOUNTENTRY sy-vline 
WA_REXA_GUI_OP_RECORD_STR-RECNTXT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-CCTXT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-XBPNAME sy-vline 
WA_REXA_GUI_OP_RECORD_STR-OBJTEXT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-XCNACCT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-VTREF sy-vline 
WA_REXA_GUI_OP_RECORD_STR-SUBAP sy-vline 
WA_REXA_GUI_OP_RECORD_STR-OPACT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-XOPACT sy-vline 
WA_REXA_GUI_OP_RECORD_STR-EXTREFERENCENO sy-vline 
WA_REXA_GUI_OP_RECORD_STR-TAXDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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