ABAP Select data from SAP table RN2COMM_LOGSTAT_COMPLETE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2COMM_LOGSTAT_COMPLETE 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 RN2COMM_LOGSTAT_COMPLETE. 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 RN2COMM_LOGSTAT_COMPLETE 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_RN2COMM_LOGSTAT_COMPLETE TYPE STANDARD TABLE OF RN2COMM_LOGSTAT_COMPLETE,
      WA_RN2COMM_LOGSTAT_COMPLETE TYPE RN2COMM_LOGSTAT_COMPLETE,
      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: <RN2COMM_LOGSTAT_COMPLETE> TYPE RN2COMM_LOGSTAT_COMPLETE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2COMM_LOGSTAT_COMPLETE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2COMM_LOGSTAT_COMPLETE
  INTO TABLE IT_RN2COMM_LOGSTAT_COMPLETE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2COMM_LOGSTAT_COMPLETE
*  INTO TABLE @DATA(IT_RN2COMM_LOGSTAT_COMPLETE2).
*--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_RN2COMM_LOGSTAT_COMPLETE INDEX 1 INTO DATA(WA_RN2COMM_LOGSTAT_COMPLETE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2COMM_LOGSTAT_COMPLETE ASSIGNING <RN2COMM_LOGSTAT_COMPLETE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2COMM_LOGSTAT_COMPLETE>-MANDT = 1.
<RN2COMM_LOGSTAT_COMPLETE>-TEMP_KEY = 1.
<RN2COMM_LOGSTAT_COMPLETE>-DISPATCH_REQUEST = 1.
<RN2COMM_LOGSTAT_COMPLETE>-STATUS = 1.
<RN2COMM_LOGSTAT_COMPLETE>-DIRECTION = 1.

ENDLOOP.

LOOP AT IT_RN2COMM_LOGSTAT_COMPLETE INTO WA_RN2COMM_LOGSTAT_COMPLETE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2COMM_LOGSTAT_COMPLETE-TYPE, sy-vline,
  WA_RN2COMM_LOGSTAT_COMPLETE-INST, sy-vline,
  WA_RN2COMM_LOGSTAT_COMPLETE-OBJ_KEY, sy-vline,
  WA_RN2COMM_LOGSTAT_COMPLETE-OBJ_VR, sy-vline,
  WA_RN2COMM_LOGSTAT_COMPLETE-EXT_KEY, sy-vline,
  WA_RN2COMM_LOGSTAT_COMPLETE-EXT_VR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2COMM_LOGSTAT_COMPLETE 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_RN2COMM_LOGSTAT_COMPLETE 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_RN2COMM_LOGSTAT_COMPLETE INTO WA_RN2COMM_LOGSTAT_COMPLETE.


*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 INST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2COMM_LOGSTAT_COMPLETE-INST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2COMM_LOGSTAT_COMPLETE-INST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SENDR_INST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2COMM_LOGSTAT_COMPLETE-SENDR_INST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2COMM_LOGSTAT_COMPLETE-SENDR_INST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SENDR_WARD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2COMM_LOGSTAT_COMPLETE-SENDR_WARD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2COMM_LOGSTAT_COMPLETE-SENDR_WARD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SENDR_PERS_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2COMM_LOGSTAT_COMPLETE-SENDR_PERS_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2COMM_LOGSTAT_COMPLETE-SENDR_PERS_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECPT_WARD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2COMM_LOGSTAT_COMPLETE-RECPT_WARD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2COMM_LOGSTAT_COMPLETE-RECPT_WARD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECPT_PERS_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN2COMM_LOGSTAT_COMPLETE-RECPT_PERS_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2COMM_LOGSTAT_COMPLETE-RECPT_PERS_ID.
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_RN2COMM_LOGSTAT_COMPLETE_STR, 
MANDT TYPE STRING,
TEMP_KEY TYPE STRING,
DISPATCH_REQUEST TYPE STRING,
STATUS TYPE STRING,
DIRECTION TYPE STRING,
TYPE TYPE STRING,
INST TYPE STRING,
OBJ_KEY TYPE STRING,
OBJ_VR TYPE STRING,
EXT_KEY TYPE STRING,
EXT_VR TYPE STRING,
PARTNER_SYS TYPE STRING,
STORE_USER TYPE STRING,
TIMESTAMP TYPE STRING,
REF_TEMP_KEY TYPE STRING,
HAS_NOTE TYPE STRING,
HAS_MORE_INFO TYPE STRING,
SENDR_INST TYPE STRING,
SENDR_INSTNAME TYPE STRING,
SENDR_WARD TYPE STRING,
SENDR_WARDNAME TYPE STRING,
SENDR_PERS_ID TYPE STRING,
SENDR_PERS_NAME TYPE STRING,
SENDR_PERS_FNAME TYPE STRING,
SENDR_PERS_TITLE TYPE STRING,
RECPT_WARD TYPE STRING,
RECPT_PERS_ID TYPE STRING,
RECPT_PERS_NAME TYPE STRING,
RECPT_PERS_FNAME TYPE STRING,
RECPT_PERS_TITLE TYPE STRING,
PAT_NAME TYPE STRING,
PAT_FNAME TYPE STRING,
PAT_TITLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2COMM_LOGSTAT_COMPLETE_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_RN2COMM_LOGSTAT_COMPLETE_STR-MANDT sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-TEMP_KEY sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-DISPATCH_REQUEST sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-STATUS sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-DIRECTION sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-TYPE sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-INST sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-OBJ_KEY sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-OBJ_VR sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-EXT_KEY sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-EXT_VR sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-PARTNER_SYS sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-STORE_USER sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-TIMESTAMP sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-REF_TEMP_KEY sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-HAS_NOTE sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-HAS_MORE_INFO sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-SENDR_INST sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-SENDR_INSTNAME sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-SENDR_WARD sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-SENDR_WARDNAME sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-SENDR_PERS_ID sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-SENDR_PERS_NAME sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-SENDR_PERS_FNAME sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-SENDR_PERS_TITLE sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-RECPT_WARD sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-RECPT_PERS_ID sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-RECPT_PERS_NAME sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-RECPT_PERS_FNAME sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-RECPT_PERS_TITLE sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-PAT_NAME sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-PAT_FNAME sy-vline 
WA_RN2COMM_LOGSTAT_COMPLETE_STR-PAT_TITLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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