ABAP Select data from SAP table RN1MCI_PROC_DISPLAY into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1MCI_PROC_DISPLAY 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 RN1MCI_PROC_DISPLAY. 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 RN1MCI_PROC_DISPLAY 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_RN1MCI_PROC_DISPLAY TYPE STANDARD TABLE OF RN1MCI_PROC_DISPLAY,
      WA_RN1MCI_PROC_DISPLAY TYPE RN1MCI_PROC_DISPLAY,
      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: <RN1MCI_PROC_DISPLAY> TYPE RN1MCI_PROC_DISPLAY.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1MCI_PROC_DISPLAY.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1MCI_PROC_DISPLAY
  INTO TABLE IT_RN1MCI_PROC_DISPLAY.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1MCI_PROC_DISPLAY
*  INTO TABLE @DATA(IT_RN1MCI_PROC_DISPLAY2).
*--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_RN1MCI_PROC_DISPLAY INDEX 1 INTO DATA(WA_RN1MCI_PROC_DISPLAY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1MCI_PROC_DISPLAY ASSIGNING <RN1MCI_PROC_DISPLAY>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1MCI_PROC_DISPLAY>-DATA = 1.
<RN1MCI_PROC_DISPLAY>-MANDT = 1.
<RN1MCI_PROC_DISPLAY>-NAME = 1.
<RN1MCI_PROC_DISPLAY>-PGROUP = 1.
<RN1MCI_PROC_DISPLAY>-STATUS = 1.

ENDLOOP.

LOOP AT IT_RN1MCI_PROC_DISPLAY INTO WA_RN1MCI_PROC_DISPLAY.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1MCI_PROC_DISPLAY-ERDAT, sy-vline,
  WA_RN1MCI_PROC_DISPLAY-ERTIM, sy-vline,
  WA_RN1MCI_PROC_DISPLAY-ERUSR, sy-vline,
  WA_RN1MCI_PROC_DISPLAY-UPDAT, sy-vline,
  WA_RN1MCI_PROC_DISPLAY-UPTIM, sy-vline,
  WA_RN1MCI_PROC_DISPLAY-UPUSR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1MCI_PROC_DISPLAY 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_RN1MCI_PROC_DISPLAY 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_RN1MCI_PROC_DISPLAY INTO WA_RN1MCI_PROC_DISPLAY.


*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 SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RN1MCI_PROC_DISPLAY-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1MCI_PROC_DISPLAY-SPRAS.
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_RN1MCI_PROC_DISPLAY_STR, 
DATA TYPE STRING,
MANDT TYPE STRING,
NAME TYPE STRING,
PGROUP TYPE STRING,
STATUS TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
ERUSR TYPE STRING,
UPDAT TYPE STRING,
UPTIM TYPE STRING,
UPUSR TYPE STRING,
LODAT TYPE STRING,
LOTIM TYPE STRING,
LOUSR TYPE STRING,
LOEKZ TYPE STRING,
SPRAS TYPE STRING,
TEXT TYPE STRING,
INFO TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
BUTTON1 TYPE STRING,
BUTTON2 TYPE STRING,
BUTTON3 TYPE STRING,
BUTTON4 TYPE STRING,
BUTTON5 TYPE STRING,
STATE1 TYPE STRING,
STATE2 TYPE STRING,
STATE3 TYPE STRING,
STATE4 TYPE STRING,
STATE5 TYPE STRING,
TEXT1 TYPE STRING,
CELLSTYLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1MCI_PROC_DISPLAY_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_RN1MCI_PROC_DISPLAY_STR-DATA sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-MANDT sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-NAME sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-PGROUP sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-STATUS sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-ERDAT sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-ERTIM sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-ERUSR sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-UPDAT sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-UPTIM sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-UPUSR sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-LODAT sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-LOTIM sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-LOUSR sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-LOEKZ sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-SPRAS sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-TEXT sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-INFO sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-ICON1 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-ICON2 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-ICON3 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-BUTTON1 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-BUTTON2 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-BUTTON3 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-BUTTON4 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-BUTTON5 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-STATE1 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-STATE2 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-STATE3 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-STATE4 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-STATE5 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-TEXT1 sy-vline 
WA_RN1MCI_PROC_DISPLAY_STR-CELLSTYLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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