ABAP Select data from SAP table RMPS_SCREEN_RESUB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RMPS_SCREEN_RESUB 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_SCREEN_RESUB. 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_SCREEN_RESUB 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_SCREEN_RESUB TYPE STANDARD TABLE OF RMPS_SCREEN_RESUB,
      WA_RMPS_SCREEN_RESUB TYPE RMPS_SCREEN_RESUB,
      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_SCREEN_RESUB> TYPE RMPS_SCREEN_RESUB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMPS_SCREEN_RESUB
*  INTO TABLE @DATA(IT_RMPS_SCREEN_RESUB2).
*--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_SCREEN_RESUB INDEX 1 INTO DATA(WA_RMPS_SCREEN_RESUB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMPS_SCREEN_RESUB>-MANDT = 1.
<RMPS_SCREEN_RESUB>-GUID = 1.
<RMPS_SCREEN_RESUB>-RMSID = 1.
<RMPS_SCREEN_RESUB>-AGENT = 1.
<RMPS_SCREEN_RESUB>-PDIRID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMPS_SCREEN_RESUB-PRIORITY, sy-vline,
  WA_RMPS_SCREEN_RESUB-RESDAT, sy-vline,
  WA_RMPS_SCREEN_RESUB-DUEDAT, sy-vline,
  WA_RMPS_SCREEN_RESUB-STATUS, sy-vline,
  WA_RMPS_SCREEN_RESUB-CREATED_TIME, sy-vline,
  WA_RMPS_SCREEN_RESUB-CREATED_USER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMPS_SCREEN_RESUB 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_SCREEN_RESUB 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_SCREEN_RESUB INTO WA_RMPS_SCREEN_RESUB.


*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 TSTPS, internal->external for field CREATED_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_RMPS_SCREEN_RESUB-CREATED_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMPS_SCREEN_RESUB-CREATED_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CHANGED_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_RMPS_SCREEN_RESUB-CHANGED_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMPS_SCREEN_RESUB-CHANGED_TIME.
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_SCREEN_RESUB_STR, 
MANDT TYPE STRING,
GUID TYPE STRING,
RMSID TYPE STRING,
AGENT TYPE STRING,
PDIRID TYPE STRING,
PRIORITY TYPE STRING,
RESDAT TYPE STRING,
DUEDAT TYPE STRING,
STATUS TYPE STRING,
CREATED_TIME TYPE STRING,
CREATED_USER TYPE STRING,
CHANGED_TIME TYPE STRING,
CHANGED_USER TYPE STRING,
PATTERN TYPE STRING,
ICON TYPE STRING,
TEXT TYPE STRING,
ACTIONTEXT TYPE STRING,
PERIOD TYPE STRING,
PERIOD_UNIT TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
STATUS_TEXT TYPE STRING,
STEXT TYPE STRING,
PATTERN_TEXT TYPE STRING,
ITEM_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMPS_SCREEN_RESUB_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_SCREEN_RESUB_STR-MANDT sy-vline 
WA_RMPS_SCREEN_RESUB_STR-GUID sy-vline 
WA_RMPS_SCREEN_RESUB_STR-RMSID sy-vline 
WA_RMPS_SCREEN_RESUB_STR-AGENT sy-vline 
WA_RMPS_SCREEN_RESUB_STR-PDIRID sy-vline 
WA_RMPS_SCREEN_RESUB_STR-PRIORITY sy-vline 
WA_RMPS_SCREEN_RESUB_STR-RESDAT sy-vline 
WA_RMPS_SCREEN_RESUB_STR-DUEDAT sy-vline 
WA_RMPS_SCREEN_RESUB_STR-STATUS sy-vline 
WA_RMPS_SCREEN_RESUB_STR-CREATED_TIME sy-vline 
WA_RMPS_SCREEN_RESUB_STR-CREATED_USER sy-vline 
WA_RMPS_SCREEN_RESUB_STR-CHANGED_TIME sy-vline 
WA_RMPS_SCREEN_RESUB_STR-CHANGED_USER sy-vline 
WA_RMPS_SCREEN_RESUB_STR-PATTERN sy-vline 
WA_RMPS_SCREEN_RESUB_STR-ICON sy-vline 
WA_RMPS_SCREEN_RESUB_STR-TEXT sy-vline 
WA_RMPS_SCREEN_RESUB_STR-ACTIONTEXT sy-vline 
WA_RMPS_SCREEN_RESUB_STR-PERIOD sy-vline 
WA_RMPS_SCREEN_RESUB_STR-PERIOD_UNIT sy-vline 
WA_RMPS_SCREEN_RESUB_STR-OTYPE sy-vline 
WA_RMPS_SCREEN_RESUB_STR-OBJID sy-vline 
WA_RMPS_SCREEN_RESUB_STR-STATUS_TEXT sy-vline 
WA_RMPS_SCREEN_RESUB_STR-STEXT sy-vline 
WA_RMPS_SCREEN_RESUB_STR-PATTERN_TEXT sy-vline 
WA_RMPS_SCREEN_RESUB_STR-ITEM_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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