ABAP Select data from SAP table /PLMI/S_GSS_MR_PI_VTX into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PLMI/S_GSS_MR_PI_VTX 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 /PLMI/S_GSS_MR_PI_VTX. 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 /PLMI/S_GSS_MR_PI_VTX 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_/PLMI/S_GSS_MR_PI_VTX TYPE STANDARD TABLE OF /PLMI/S_GSS_MR_PI_VTX,
      WA_/PLMI/S_GSS_MR_PI_VTX TYPE /PLMI/S_GSS_MR_PI_VTX,
      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: </PLMI/S_GSS_MR_PI_VTX> TYPE /PLMI/S_GSS_MR_PI_VTX.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PLMI/S_GSS_MR_PI_VTX
  INTO TABLE IT_/PLMI/S_GSS_MR_PI_VTX.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PLMI/S_GSS_MR_PI_VTX
*  INTO TABLE @DATA(IT_/PLMI/S_GSS_MR_PI_VTX2).
*--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_/PLMI/S_GSS_MR_PI_VTX INDEX 1 INTO DATA(WA_/PLMI/S_GSS_MR_PI_VTX2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PLMI/S_GSS_MR_PI_VTX ASSIGNING </PLMI/S_GSS_MR_PI_VTX>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PLMI/S_GSS_MR_PI_VTX>-KEY_V = 1.
</PLMI/S_GSS_MR_PI_VTX>-ASPECT = 1.
</PLMI/S_GSS_MR_PI_VTX>-ID = 1.
</PLMI/S_GSS_MR_PI_VTX>-KEY_V_PRED = 1.
</PLMI/S_GSS_MR_PI_VTX>-ASPECT = 1.

ENDLOOP.

LOOP AT IT_/PLMI/S_GSS_MR_PI_VTX INTO WA_/PLMI/S_GSS_MR_PI_VTX.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PLMI/S_GSS_MR_PI_VTX-ID, sy-vline,
  WA_/PLMI/S_GSS_MR_PI_VTX-R_APPL_ENHANCE, sy-vline,
  WA_/PLMI/S_GSS_MR_PI_VTX-FTRNR, sy-vline,
  WA_/PLMI/S_GSS_MR_PI_VTX-CSKTX, sy-vline,
  WA_/PLMI/S_GSS_MR_PI_VTX-COSTR, sy-vline,
  WA_/PLMI/S_GSS_MR_PI_VTX-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PLMI/S_GSS_MR_PI_VTX 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_/PLMI/S_GSS_MR_PI_VTX 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_/PLMI/S_GSS_MR_PI_VTX INTO WA_/PLMI/S_GSS_MR_PI_VTX.


*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 NUMCV, internal->external for field FTRNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_/PLMI/S_GSS_MR_PI_VTX-FTRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMI/S_GSS_MR_PI_VTX-FTRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PLMI/S_GSS_MR_PI_VTX-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMI/S_GSS_MR_PI_VTX-AENNR.
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_/PLMI/S_GSS_MR_PI_VTX_STR, 
KEY_V TYPE STRING,
ASPECT TYPE STRING,
ID TYPE STRING,
KEY_V_PRED TYPE STRING,
ASPECT TYPE STRING,
ID TYPE STRING,
R_APPL_ENHANCE TYPE STRING,
FTRNR TYPE STRING,
CSKTX TYPE STRING,
COSTR TYPE STRING,
WERKS TYPE STRING,
KEY_V_PREV_SIBLING TYPE STRING,
ASPECT TYPE STRING,
ID TYPE STRING,
KEY_V_SOURCE TYPE STRING,
ASPECT TYPE STRING,
ID TYPE STRING,
PI_CHAR_VALS TYPE STRING,
AENNR TYPE STRING,
DATUV TYPE STRING,
ANNAM TYPE STRING,
ANDAT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
UPD_AS_INS_TARGET_ID TYPE STRING,
MODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PLMI/S_GSS_MR_PI_VTX_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_/PLMI/S_GSS_MR_PI_VTX_STR-KEY_V sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-ASPECT sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-ID sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-KEY_V_PRED sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-ASPECT sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-ID sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-R_APPL_ENHANCE sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-FTRNR sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-CSKTX sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-COSTR sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-WERKS sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-KEY_V_PREV_SIBLING sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-ASPECT sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-ID sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-KEY_V_SOURCE sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-ASPECT sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-ID sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-PI_CHAR_VALS sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-AENNR sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-DATUV sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-ANNAM sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-ANDAT sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-AENAM sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-AEDAT sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-UPD_AS_INS_TARGET_ID sy-vline 
WA_/PLMI/S_GSS_MR_PI_VTX_STR-MODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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