ABAP Select data from SAP table RDGAPIEXCEPT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RDGAPIEXCEPT
*  INTO TABLE @DATA(IT_RDGAPIEXCEPT2).
*--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_RDGAPIEXCEPT INDEX 1 INTO DATA(WA_RDGAPIEXCEPT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RDGAPIEXCEPT>-ERRORMODE = 1.
<RDGAPIEXCEPT>-ERRORINFO = 1.
<RDGAPIEXCEPT>-ERRORCLASS = 1.
<RDGAPIEXCEPT>-ERRORPARAM = 1.
<RDGAPIEXCEPT>-LOGLOCKMOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RDGAPIEXCEPT-EXTINFO, sy-vline,
  WA_RDGAPIEXCEPT-LINEMOD, sy-vline,
  WA_RDGAPIEXCEPT-MANDT, sy-vline,
  WA_RDGAPIEXCEPT-LWDG, sy-vline,
  WA_RDGAPIEXCEPT-EXCEPTID, sy-vline,
  WA_RDGAPIEXCEPT-VERSION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RDGAPIEXCEPT 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_RDGAPIEXCEPT 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_RDGAPIEXCEPT INTO WA_RDGAPIEXCEPT.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RDGAPIEXCEPT_STR, 
ERRORMODE TYPE STRING,
ERRORINFO TYPE STRING,
ERRORCLASS TYPE STRING,
ERRORPARAM TYPE STRING,
LOGLOCKMOD TYPE STRING,
EXTINFO TYPE STRING,
LINEMOD TYPE STRING,
MANDT TYPE STRING,
LWDG TYPE STRING,
EXCEPTID TYPE STRING,
VERSION TYPE STRING,
DELFLG TYPE STRING,
BLOCKEDFLG TYPE STRING,
DISTRIBFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
EXCEPT_VALFR TYPE STRING,
EXCEPT_VALTO TYPE STRING,
ENTPR_SPECFLG TYPE STRING,
UNNO_SPECFLG TYPE STRING,
CNTRY_SPECFLG TYPE STRING,
EXCEPTPROFILE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RDGAPIEXCEPT_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_RDGAPIEXCEPT_STR-ERRORMODE sy-vline 
WA_RDGAPIEXCEPT_STR-ERRORINFO sy-vline 
WA_RDGAPIEXCEPT_STR-ERRORCLASS sy-vline 
WA_RDGAPIEXCEPT_STR-ERRORPARAM sy-vline 
WA_RDGAPIEXCEPT_STR-LOGLOCKMOD sy-vline 
WA_RDGAPIEXCEPT_STR-EXTINFO sy-vline 
WA_RDGAPIEXCEPT_STR-LINEMOD sy-vline 
WA_RDGAPIEXCEPT_STR-MANDT sy-vline 
WA_RDGAPIEXCEPT_STR-LWDG sy-vline 
WA_RDGAPIEXCEPT_STR-EXCEPTID sy-vline 
WA_RDGAPIEXCEPT_STR-VERSION sy-vline 
WA_RDGAPIEXCEPT_STR-DELFLG sy-vline 
WA_RDGAPIEXCEPT_STR-BLOCKEDFLG sy-vline 
WA_RDGAPIEXCEPT_STR-DISTRIBFLG sy-vline 
WA_RDGAPIEXCEPT_STR-CRDAT sy-vline 
WA_RDGAPIEXCEPT_STR-CRNAM sy-vline 
WA_RDGAPIEXCEPT_STR-UPDDAT sy-vline 
WA_RDGAPIEXCEPT_STR-UPDNAM sy-vline 
WA_RDGAPIEXCEPT_STR-EXCEPT_VALFR sy-vline 
WA_RDGAPIEXCEPT_STR-EXCEPT_VALTO sy-vline 
WA_RDGAPIEXCEPT_STR-ENTPR_SPECFLG sy-vline 
WA_RDGAPIEXCEPT_STR-UNNO_SPECFLG sy-vline 
WA_RDGAPIEXCEPT_STR-CNTRY_SPECFLG sy-vline 
WA_RDGAPIEXCEPT_STR-EXCEPTPROFILE sy-vline      INTO ld_text SEPARATED BY SPACE.

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