ABAP Select data from SAP table MPES_SFO_OBJECT_KEY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MPES_SFO_OBJECT_KEY
*  INTO TABLE @DATA(IT_MPES_SFO_OBJECT_KEY2).
*--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_MPES_SFO_OBJECT_KEY INDEX 1 INTO DATA(WA_MPES_SFO_OBJECT_KEY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MPES_SFO_OBJECT_KEY>-AUFNR = 1.
<MPES_SFO_OBJECT_KEY>-VSNMR = 1.
<MPES_SFO_OBJECT_KEY>-AUFPL = 1.
<MPES_SFO_OBJECT_KEY>-RSNUM = 1.
<MPES_SFO_OBJECT_KEY>-POSNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MPES_SFO_OBJECT_KEY-PLNFL, sy-vline,
  WA_MPES_SFO_OBJECT_KEY-APLZL, sy-vline,
  WA_MPES_SFO_OBJECT_KEY-RSPOS, sy-vline,
  WA_MPES_SFO_OBJECT_KEY-RSART, sy-vline,
  WA_MPES_SFO_OBJECT_KEY-PZLFH, sy-vline,
  WA_MPES_SFO_OBJECT_KEY-DOKAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MPES_SFO_OBJECT_KEY 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_MPES_SFO_OBJECT_KEY 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_MPES_SFO_OBJECT_KEY INTO WA_MPES_SFO_OBJECT_KEY.


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

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_MPES_SFO_OBJECT_KEY-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPES_SFO_OBJECT_KEY-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field CMP_POSNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_MPES_SFO_OBJECT_KEY-CMP_POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPES_SFO_OBJECT_KEY-CMP_POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MPES_SFO_OBJECT_KEY-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPES_SFO_OBJECT_KEY-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OAN_ELEMENT_EXT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPES_SFO_OBJECT_KEY-OAN_ELEMENT_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPES_SFO_OBJECT_KEY-OAN_ELEMENT_EXT.
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_MPES_SFO_OBJECT_KEY_STR, 
AUFNR TYPE STRING,
VSNMR TYPE STRING,
AUFPL TYPE STRING,
RSNUM TYPE STRING,
POSNR TYPE STRING,
PLNFL TYPE STRING,
APLZL TYPE STRING,
RSPOS TYPE STRING,
RSART TYPE STRING,
PZLFH TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
OBJKY TYPE STRING,
OAN_INSTANCE_ID TYPE STRING,
OAN_ID TYPE STRING,
OAN_VERSION_NO TYPE STRING,
OA_ID TYPE STRING,
OA_VERSION_NO TYPE STRING,
SEQ_TEXT TYPE STRING,
VORNR TYPE STRING,
SUMNR TYPE STRING,
OPR_TEXT TYPE STRING,
CMP_POSNR TYPE STRING,
MATNR TYPE STRING,
MATXT TYPE STRING,
PSNFH TYPE STRING,
FHMNR TYPE STRING,
OAN_TEXT TYPE STRING,
OAN_ELEMENT_EXT TYPE STRING,
OA_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MPES_SFO_OBJECT_KEY_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_MPES_SFO_OBJECT_KEY_STR-AUFNR sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-VSNMR sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-AUFPL sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-RSNUM sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-POSNR sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-PLNFL sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-APLZL sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-RSPOS sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-RSART sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-PZLFH sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-DOKAR sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-DOKNR sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-DOKVR sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-DOKTL sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-OBJKY sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-OAN_INSTANCE_ID sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-OAN_ID sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-OAN_VERSION_NO sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-OA_ID sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-OA_VERSION_NO sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-SEQ_TEXT sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-VORNR sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-SUMNR sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-OPR_TEXT sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-CMP_POSNR sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-MATNR sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-MATXT sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-PSNFH sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-FHMNR sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-OAN_TEXT sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-OAN_ELEMENT_EXT sy-vline 
WA_MPES_SFO_OBJECT_KEY_STR-OA_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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