ABAP Select data from SAP table IMDIKEYMAPOVWBP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMDIKEYMAPOVWBP
*  INTO TABLE @DATA(IT_IMDIKEYMAPOVWBP2).
*--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_IMDIKEYMAPOVWBP INDEX 1 INTO DATA(WA_IMDIKEYMAPOVWBP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMDIKEYMAPOVWBP>-MANDT = 1.
<IMDIKEYMAPOVWBP>-KEYID = 1.
<IMDIKEYMAPOVWBP>-OBJECTGROUPMERGEID = 1.
<IMDIKEYMAPOVWBP>-OBJECTID = 1.
<IMDIKEYMAPOVWBP>-OBJECTTYPECODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMDIKEYMAPOVWBP-OBJECTTYPECODETEXT, sy-vline,
  WA_IMDIKEYMAPOVWBP-OBJECTIDENTIFIERTYPE, sy-vline,
  WA_IMDIKEYMAPOVWBP-OBJECTIDENTIFIERTYPETEXT, sy-vline,
  WA_IMDIKEYMAPOVWBP-DESTINATION, sy-vline,
  WA_IMDIKEYMAPOVWBP-BUSINESSSYSTEM, sy-vline,
  WA_IMDIKEYMAPOVWBP-MAPPINGGROUPID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMDIKEYMAPOVWBP 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_IMDIKEYMAPOVWBP 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_IMDIKEYMAPOVWBP INTO WA_IMDIKEYMAPOVWBP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_IMDIKEYMAPOVWBP_STR, 
MANDT TYPE STRING,
KEYID TYPE STRING,
OBJECTGROUPMERGEID TYPE STRING,
OBJECTID TYPE STRING,
OBJECTTYPECODE TYPE STRING,
OBJECTTYPECODETEXT TYPE STRING,
OBJECTIDENTIFIERTYPE TYPE STRING,
OBJECTIDENTIFIERTYPETEXT TYPE STRING,
DESTINATION TYPE STRING,
BUSINESSSYSTEM TYPE STRING,
MAPPINGGROUPID TYPE STRING,
OBJECTINSTANCEKEY TYPE STRING,
ISLOCALBUSINESSSYSTEM TYPE STRING,
COUNTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMDIKEYMAPOVWBP_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_IMDIKEYMAPOVWBP_STR-MANDT sy-vline 
WA_IMDIKEYMAPOVWBP_STR-KEYID sy-vline 
WA_IMDIKEYMAPOVWBP_STR-OBJECTGROUPMERGEID sy-vline 
WA_IMDIKEYMAPOVWBP_STR-OBJECTID sy-vline 
WA_IMDIKEYMAPOVWBP_STR-OBJECTTYPECODE sy-vline 
WA_IMDIKEYMAPOVWBP_STR-OBJECTTYPECODETEXT sy-vline 
WA_IMDIKEYMAPOVWBP_STR-OBJECTIDENTIFIERTYPE sy-vline 
WA_IMDIKEYMAPOVWBP_STR-OBJECTIDENTIFIERTYPETEXT sy-vline 
WA_IMDIKEYMAPOVWBP_STR-DESTINATION sy-vline 
WA_IMDIKEYMAPOVWBP_STR-BUSINESSSYSTEM sy-vline 
WA_IMDIKEYMAPOVWBP_STR-MAPPINGGROUPID sy-vline 
WA_IMDIKEYMAPOVWBP_STR-OBJECTINSTANCEKEY sy-vline 
WA_IMDIKEYMAPOVWBP_STR-ISLOCALBUSINESSSYSTEM sy-vline 
WA_IMDIKEYMAPOVWBP_STR-COUNTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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