ABAP Select data from SAP table V_RSDDSTATDTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_RSDDSTATDTP
*  INTO TABLE @DATA(IT_V_RSDDSTATDTP2).
*--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_V_RSDDSTATDTP INDEX 1 INTO DATA(WA_V_RSDDSTATDTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_RSDDSTATDTP>-INSTANCE = 1.
<V_RSDDSTATDTP>-DTP = 1.
<V_RSDDSTATDTP>-DPAKID = 1.
<V_RSDDSTATDTP>-UNAME = 1.
<V_RSDDSTATDTP>-LOGSYS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_RSDDSTATDTP-SRC, sy-vline,
  WA_V_RSDDSTATDTP-SRCTP, sy-vline,
  WA_V_RSDDSTATDTP-SRCTLOGO, sy-vline,
  WA_V_RSDDSTATDTP-SRCTLOGOSUB, sy-vline,
  WA_V_RSDDSTATDTP-TGT, sy-vline,
  WA_V_RSDDSTATDTP-TGTTP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_RSDDSTATDTP 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_V_RSDDSTATDTP 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_V_RSDDSTATDTP INTO WA_V_RSDDSTATDTP.


*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_V_RSDDSTATDTP-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_RSDDSTATDTP-LOGSYS.
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_V_RSDDSTATDTP_STR, 
INSTANCE TYPE STRING,
DTP TYPE STRING,
DPAKID TYPE STRING,
UNAME TYPE STRING,
LOGSYS TYPE STRING,
SRC TYPE STRING,
SRCTP TYPE STRING,
SRCTLOGO TYPE STRING,
SRCTLOGOSUB TYPE STRING,
TGT TYPE STRING,
TGTTP TYPE STRING,
TGTTLOGO TYPE STRING,
TGTTLOGOSUB TYPE STRING,
PROCESSMODE TYPE STRING,
STEP TYPE STRING,
SUBSTEP TYPE STRING,
CMD TYPE STRING,
TSTMP_START TYPE STRING,
TSTMP_FINISH TYPE STRING,
RECORDS_START TYPE STRING,
RECORDS_FINISH TYPE STRING,
SIZE_START TYPE STRING,
SIZE_FINISH TYPE STRING,
EVENTID TYPE STRING,
REQUID TYPE STRING,
LOG_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_RSDDSTATDTP_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_V_RSDDSTATDTP_STR-INSTANCE sy-vline 
WA_V_RSDDSTATDTP_STR-DTP sy-vline 
WA_V_RSDDSTATDTP_STR-DPAKID sy-vline 
WA_V_RSDDSTATDTP_STR-UNAME sy-vline 
WA_V_RSDDSTATDTP_STR-LOGSYS sy-vline 
WA_V_RSDDSTATDTP_STR-SRC sy-vline 
WA_V_RSDDSTATDTP_STR-SRCTP sy-vline 
WA_V_RSDDSTATDTP_STR-SRCTLOGO sy-vline 
WA_V_RSDDSTATDTP_STR-SRCTLOGOSUB sy-vline 
WA_V_RSDDSTATDTP_STR-TGT sy-vline 
WA_V_RSDDSTATDTP_STR-TGTTP sy-vline 
WA_V_RSDDSTATDTP_STR-TGTTLOGO sy-vline 
WA_V_RSDDSTATDTP_STR-TGTTLOGOSUB sy-vline 
WA_V_RSDDSTATDTP_STR-PROCESSMODE sy-vline 
WA_V_RSDDSTATDTP_STR-STEP sy-vline 
WA_V_RSDDSTATDTP_STR-SUBSTEP sy-vline 
WA_V_RSDDSTATDTP_STR-CMD sy-vline 
WA_V_RSDDSTATDTP_STR-TSTMP_START sy-vline 
WA_V_RSDDSTATDTP_STR-TSTMP_FINISH sy-vline 
WA_V_RSDDSTATDTP_STR-RECORDS_START sy-vline 
WA_V_RSDDSTATDTP_STR-RECORDS_FINISH sy-vline 
WA_V_RSDDSTATDTP_STR-SIZE_START sy-vline 
WA_V_RSDDSTATDTP_STR-SIZE_FINISH sy-vline 
WA_V_RSDDSTATDTP_STR-EVENTID sy-vline 
WA_V_RSDDSTATDTP_STR-REQUID sy-vline 
WA_V_RSDDSTATDTP_STR-LOG_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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