ABAP Select data from SAP table RMPS_PROTOCOL_DISP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMPS_PROTOCOL_DISP
*  INTO TABLE @DATA(IT_RMPS_PROTOCOL_DISP2).
*--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_RMPS_PROTOCOL_DISP INDEX 1 INTO DATA(WA_RMPS_PROTOCOL_DISP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMPS_PROTOCOL_DISP>-BOX = 1.
<RMPS_PROTOCOL_DISP>-SPS_ID = 1.
<RMPS_PROTOCOL_DISP>-RMS_ID = 1.
<RMPS_PROTOCOL_DISP>-SPS_NAME = 1.
<RMPS_PROTOCOL_DISP>-ACT_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMPS_PROTOCOL_DISP-TEXT, sy-vline,
  WA_RMPS_PROTOCOL_DISP-CONCEPT, sy-vline,
  WA_RMPS_PROTOCOL_DISP-LANGU, sy-vline,
  WA_RMPS_PROTOCOL_DISP-OBJECT, sy-vline,
  WA_RMPS_PROTOCOL_DISP-LFD_NUM, sy-vline,
  WA_RMPS_PROTOCOL_DISP-FLAG_CNTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMPS_PROTOCOL_DISP 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_RMPS_PROTOCOL_DISP 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_RMPS_PROTOCOL_DISP INTO WA_RMPS_PROTOCOL_DISP.


*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 ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RMPS_PROTOCOL_DISP-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMPS_PROTOCOL_DISP-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SOURCE_LAN
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RMPS_PROTOCOL_DISP-SOURCE_LAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMPS_PROTOCOL_DISP-SOURCE_LAN.
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_RMPS_PROTOCOL_DISP_STR, 
BOX TYPE STRING,
SPS_ID TYPE STRING,
RMS_ID TYPE STRING,
SPS_NAME TYPE STRING,
ACT_ID TYPE STRING,
TEXT TYPE STRING,
CONCEPT TYPE STRING,
LANGU TYPE STRING,
OBJECT TYPE STRING,
LFD_NUM TYPE STRING,
FLAG_CNTXT TYPE STRING,
LAST_REL TYPE STRING,
LAST_IREL TYPE STRING,
COUNTRY TYPE STRING,
EXTENSION TYPE STRING,
ADD_CNTXT TYPE STRING,
CREA_NAME TYPE STRING,
CREA_TSTUT TYPE STRING,
CHAN_NAME TYPE STRING,
CHAN_TSTUT TYPE STRING,
SOURCE_LAN TYPE STRING,
FLAG_COM TYPE STRING,
FLAG_CORR TYPE STRING,
STATUS TYPE STRING,
VERSION TYPE STRING,
LENGTH TYPE STRING,
TEXT TYPE STRING,
ACT_OTR_REF TYPE STRING,
OVER_LOG_LEVEL TYPE STRING,
LOG_LEVEL TYPE STRING,
DEF_LOG_LEVEL TYPE STRING,
ELE_LOG_LEVEL TYPE STRING,
IS_ACTIVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMPS_PROTOCOL_DISP_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_RMPS_PROTOCOL_DISP_STR-BOX sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-SPS_ID sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-RMS_ID sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-SPS_NAME sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-ACT_ID sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-TEXT sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-CONCEPT sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-LANGU sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-OBJECT sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-LFD_NUM sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-FLAG_CNTXT sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-LAST_REL sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-LAST_IREL sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-COUNTRY sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-EXTENSION sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-ADD_CNTXT sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-CREA_NAME sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-CREA_TSTUT sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-CHAN_NAME sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-CHAN_TSTUT sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-SOURCE_LAN sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-FLAG_COM sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-FLAG_CORR sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-STATUS sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-VERSION sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-LENGTH sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-TEXT sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-ACT_OTR_REF sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-OVER_LOG_LEVEL sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-LOG_LEVEL sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-DEF_LOG_LEVEL sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-ELE_LOG_LEVEL sy-vline 
WA_RMPS_PROTOCOL_DISP_STR-IS_ACTIVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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