ABAP Select data from SAP table DRF_S_RUNTIME_PARAMETER_EXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DRF_S_RUNTIME_PARAMETER_EXT
*  INTO TABLE @DATA(IT_DRF_S_RUNTIME_PARAMETER_EXT2).
*--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_DRF_S_RUNTIME_PARAMETER_EXT INDEX 1 INTO DATA(WA_DRF_S_RUNTIME_PARAMETER_EXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DRF_S_RUNTIME_PARAMETER_EXT>-BAL = 1.
<DRF_S_RUNTIME_PARAMETER_EXT>-LANGUAGE_FILTER_INSTANCE = 1.
<DRF_S_RUNTIME_PARAMETER_EXT>-APPL = 1.
<DRF_S_RUNTIME_PARAMETER_EXT>-OUTB_IMPL = 1.
<DRF_S_RUNTIME_PARAMETER_EXT>-FOBJ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DRF_S_RUNTIME_PARAMETER_EXT-BO, sy-vline,
  WA_DRF_S_RUNTIME_PARAMETER_EXT-DLMOD, sy-vline,
  WA_DRF_S_RUNTIME_PARAMETER_EXT-RUNMOD, sy-vline,
  WA_DRF_S_RUNTIME_PARAMETER_EXT-COMM_CHANNEL, sy-vline,
  WA_DRF_S_RUNTIME_PARAMETER_EXT-SERVICE_OPERATION, sy-vline,
  WA_DRF_S_RUNTIME_PARAMETER_EXT-PROXY_CLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DRF_S_RUNTIME_PARAMETER_EXT 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_DRF_S_RUNTIME_PARAMETER_EXT 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_DRF_S_RUNTIME_PARAMETER_EXT INTO WA_DRF_S_RUNTIME_PARAMETER_EXT.


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

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

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

*Conversion exit ALPHA, internal->external for field USMD_CREQUEST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DRF_S_RUNTIME_PARAMETER_EXT-USMD_CREQUEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DRF_S_RUNTIME_PARAMETER_EXT-USMD_CREQUEST.
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_DRF_S_RUNTIME_PARAMETER_EXT_STR, 
BAL TYPE STRING,
LANGUAGE_FILTER_INSTANCE TYPE STRING,
APPL TYPE STRING,
OUTB_IMPL TYPE STRING,
FOBJ TYPE STRING,
BO TYPE STRING,
DLMOD TYPE STRING,
RUNMOD TYPE STRING,
COMM_CHANNEL TYPE STRING,
SERVICE_OPERATION TYPE STRING,
PROXY_CLASS TYPE STRING,
TESTRUN TYPE STRING,
RECONMOD TYPE STRING,
RETURN_MESSAGE TYPE STRING,
FULLPATH TYPE STRING,
START_DATE TYPE STRING,
START_TIME TYPE STRING,
USMD_TRVARI TYPE STRING,
FILTER_TP TYPE STRING,
RUN_ID TYPE STRING,
RERUN_ID TYPE STRING,
LOGHANDLE TYPE STRING,
IGNORE_CONFIGURED_FILTER TYPE STRING,
DELETE_DATA TYPE STRING,
PARALLEL_ACTIVE TYPE STRING,
SERVER_GROUP TYPE STRING,
MAX_NO_PARALLEL_TASKS TYPE STRING,
BUSINESS_SYSTEM TYPE STRING,
BUS_SYS_ID TYPE STRING,
LOGSYS TYPE STRING,
RFCDEST TYPE STRING,
FILE_PATH TYPE STRING,
FILE_NAME TYPE STRING,
DEF_STORAGE_SERV TYPE STRING,
UNICODE_SYSTEM TYPE STRING,
UNICODE_CODE_PAG TYPE STRING,
DEL_CP TYPE STRING,
TIME_INTERVAL_SUPPLIED TYPE STRING,
CRT_DATE_LOWER_LIMIT TYPE STRING,
CRT_TIME_LOWER_LIMIT TYPE STRING,
CRT_DATE_UPPER_LIMIT TYPE STRING,
CRT_TIME_UPPER_LIMIT TYPE STRING,
TO_C_LANGUAGE TYPE STRING,
TO_C_NODE TYPE STRING,
ADDITIONAL_PARAMETER TYPE STRING,
EDITION_FROM TYPE STRING,
EDITION_TO TYPE STRING,
MSG_LINK TYPE STRING,
OUTB_PARAMETER TYPE STRING,
PARAMOD TYPE STRING,
USMD_CREQUEST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DRF_S_RUNTIME_PARAMETER_EXT_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_DRF_S_RUNTIME_PARAMETER_EXT_STR-BAL sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-LANGUAGE_FILTER_INSTANCE sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-APPL sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-OUTB_IMPL sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-FOBJ sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-BO sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-DLMOD sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-RUNMOD sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-COMM_CHANNEL sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-SERVICE_OPERATION sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-PROXY_CLASS sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-TESTRUN sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-RECONMOD sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-RETURN_MESSAGE sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-FULLPATH sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-START_DATE sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-START_TIME sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-USMD_TRVARI sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-FILTER_TP sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-RUN_ID sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-RERUN_ID sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-LOGHANDLE sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-IGNORE_CONFIGURED_FILTER sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-DELETE_DATA sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-PARALLEL_ACTIVE sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-SERVER_GROUP sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-MAX_NO_PARALLEL_TASKS sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-BUSINESS_SYSTEM sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-BUS_SYS_ID sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-LOGSYS sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-RFCDEST sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-FILE_PATH sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-FILE_NAME sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-DEF_STORAGE_SERV sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-UNICODE_SYSTEM sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-UNICODE_CODE_PAG sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-DEL_CP sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-TIME_INTERVAL_SUPPLIED sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-CRT_DATE_LOWER_LIMIT sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-CRT_TIME_LOWER_LIMIT sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-CRT_DATE_UPPER_LIMIT sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-CRT_TIME_UPPER_LIMIT sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-TO_C_LANGUAGE sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-TO_C_NODE sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-ADDITIONAL_PARAMETER sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-EDITION_FROM sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-EDITION_TO sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-MSG_LINK sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-OUTB_PARAMETER sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-PARAMOD sy-vline 
WA_DRF_S_RUNTIME_PARAMETER_EXT_STR-USMD_CREQUEST sy-vline      INTO ld_text SEPARATED BY SPACE.

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