ABAP Select data from SAP table UPOT_UDM_SRC_VD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UPOT_UDM_SRC_VD
*  INTO TABLE @DATA(IT_UPOT_UDM_SRC_VD2).
*--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_UPOT_UDM_SRC_VD INDEX 1 INTO DATA(WA_UPOT_UDM_SRC_VD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UPOT_UDM_SRC_VD>-MANDT = 1.
<UPOT_UDM_SRC_VD>-ALC_SRC_GUID = 1.
<UPOT_UDM_SRC_VD>-ALLOC_RUN_ID = 1.
<UPOT_UDM_SRC_VD>-GHO_NETOBJ_TYPE = 1.
<UPOT_UDM_SRC_VD>-TPLNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UPOT_UDM_SRC_VD-ALLOC_START, sy-vline,
  WA_UPOT_UDM_SRC_VD-ALLOC_END, sy-vline,
  WA_UPOT_UDM_SRC_VD-EFFECTIVE_FROM, sy-vline,
  WA_UPOT_UDM_SRC_VD-EFFECTIVE_TO, sy-vline,
  WA_UPOT_UDM_SRC_VD-NETOBJ_STATUS, sy-vline,
  WA_UPOT_UDM_SRC_VD-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UPOT_UDM_SRC_VD 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_UPOT_UDM_SRC_VD 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_UPOT_UDM_SRC_VD INTO WA_UPOT_UDM_SRC_VD.


*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 TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_UPOT_UDM_SRC_VD-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPOT_UDM_SRC_VD-TPLNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_UPOT_UDM_SRC_VD-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPOT_UDM_SRC_VD-PSPNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PLNAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_UPOT_UDM_SRC_VD-PLNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPOT_UDM_SRC_VD-PLNAL.
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_UPOT_UDM_SRC_VD_STR, 
MANDT TYPE STRING,
ALC_SRC_GUID TYPE STRING,
ALLOC_RUN_ID TYPE STRING,
GHO_NETOBJ_TYPE TYPE STRING,
TPLNR TYPE STRING,
ALLOC_START TYPE STRING,
ALLOC_END TYPE STRING,
EFFECTIVE_FROM TYPE STRING,
EFFECTIVE_TO TYPE STRING,
NETOBJ_STATUS TYPE STRING,
BUKRS TYPE STRING,
COST_CENTRE TYPE STRING,
OP_FL TYPE STRING,
PN_MEAS_GRP TYPE STRING,
OPTIONAL TYPE STRING,
PRD_MTH_CD TYPE STRING,
OPERATOR TYPE STRING,
PSPNR TYPE STRING,
GHO_WELLCLASS_ID TYPE STRING,
RLF_USAGE_FL_MTR TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
AUART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UPOT_UDM_SRC_VD_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_UPOT_UDM_SRC_VD_STR-MANDT sy-vline 
WA_UPOT_UDM_SRC_VD_STR-ALC_SRC_GUID sy-vline 
WA_UPOT_UDM_SRC_VD_STR-ALLOC_RUN_ID sy-vline 
WA_UPOT_UDM_SRC_VD_STR-GHO_NETOBJ_TYPE sy-vline 
WA_UPOT_UDM_SRC_VD_STR-TPLNR sy-vline 
WA_UPOT_UDM_SRC_VD_STR-ALLOC_START sy-vline 
WA_UPOT_UDM_SRC_VD_STR-ALLOC_END sy-vline 
WA_UPOT_UDM_SRC_VD_STR-EFFECTIVE_FROM sy-vline 
WA_UPOT_UDM_SRC_VD_STR-EFFECTIVE_TO sy-vline 
WA_UPOT_UDM_SRC_VD_STR-NETOBJ_STATUS sy-vline 
WA_UPOT_UDM_SRC_VD_STR-BUKRS sy-vline 
WA_UPOT_UDM_SRC_VD_STR-COST_CENTRE sy-vline 
WA_UPOT_UDM_SRC_VD_STR-OP_FL sy-vline 
WA_UPOT_UDM_SRC_VD_STR-PN_MEAS_GRP sy-vline 
WA_UPOT_UDM_SRC_VD_STR-OPTIONAL sy-vline 
WA_UPOT_UDM_SRC_VD_STR-PRD_MTH_CD sy-vline 
WA_UPOT_UDM_SRC_VD_STR-OPERATOR sy-vline 
WA_UPOT_UDM_SRC_VD_STR-PSPNR sy-vline 
WA_UPOT_UDM_SRC_VD_STR-GHO_WELLCLASS_ID sy-vline 
WA_UPOT_UDM_SRC_VD_STR-RLF_USAGE_FL_MTR sy-vline 
WA_UPOT_UDM_SRC_VD_STR-PLNTY sy-vline 
WA_UPOT_UDM_SRC_VD_STR-PLNNR sy-vline 
WA_UPOT_UDM_SRC_VD_STR-PLNAL sy-vline 
WA_UPOT_UDM_SRC_VD_STR-AUART sy-vline      INTO ld_text SEPARATED BY SPACE.

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