ABAP Select data from SAP table UPOS_MIG_DEH_UOM_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UPOS_MIG_DEH_UOM_DATA
*  INTO TABLE @DATA(IT_UPOS_MIG_DEH_UOM_DATA2).
*--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_UPOS_MIG_DEH_UOM_DATA INDEX 1 INTO DATA(WA_UPOS_MIG_DEH_UOM_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UPOS_MIG_DEH_UOM_DATA>-NETOBJ_TYPE = 1.
<UPOS_MIG_DEH_UOM_DATA>-TPLKZ = 1.
<UPOS_MIG_DEH_UOM_DATA>-NETOBJ_ID = 1.
<UPOS_MIG_DEH_UOM_DATA>-TPLNR = 1.
<UPOS_MIG_DEH_UOM_DATA>-DEH_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UPOS_MIG_DEH_UOM_DATA-EDITM, sy-vline,
  WA_UPOS_MIG_DEH_UOM_DATA-DEH_DESCR, sy-vline,
  WA_UPOS_MIG_DEH_UOM_DATA-FLTYP, sy-vline,
  WA_UPOS_MIG_DEH_UOM_DATA-VALID_FROM_DATE, sy-vline,
  WA_UPOS_MIG_DEH_UOM_DATA-VALID_TO_DATE, sy-vline,
  WA_UPOS_MIG_DEH_UOM_DATA-ALKEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UPOS_MIG_DEH_UOM_DATA 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_UPOS_MIG_DEH_UOM_DATA 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_UPOS_MIG_DEH_UOM_DATA INTO WA_UPOS_MIG_DEH_UOM_DATA.


*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 GHONO, internal->external for field NETOBJ_ID
CALL FUNCTION 'CONVERSION_EXIT_GHONO_OUTPUT'
  EXPORTING
    input =                      WA_UPOS_MIG_DEH_UOM_DATA-NETOBJ_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPOS_MIG_DEH_UOM_DATA-NETOBJ_ID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field COST_CENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_UPOS_MIG_DEH_UOM_DATA-COST_CENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPOS_MIG_DEH_UOM_DATA-COST_CENTER.
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_UPOS_MIG_DEH_UOM_DATA_STR, 
NETOBJ_TYPE TYPE STRING,
TPLKZ TYPE STRING,
NETOBJ_ID TYPE STRING,
TPLNR TYPE STRING,
DEH_TYPE TYPE STRING,
EDITM TYPE STRING,
DEH_DESCR TYPE STRING,
FLTYP TYPE STRING,
VALID_FROM_DATE TYPE STRING,
VALID_TO_DATE TYPE STRING,
ALKEY TYPE STRING,
ALTXT TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
COUNTRY_DESC TYPE STRING,
REGION_DESC TYPE STRING,
SEC_GEO_LOC TYPE STRING,
SHORE_IND TYPE STRING,
COMPANY_CODE TYPE STRING,
COST_CENTER TYPE STRING,
LATITUDE TYPE STRING,
LONGITUDE TYPE STRING,
OP_FL TYPE STRING,
RLF_USAGE_FL TYPE STRING,
LAT_DIR_CD TYPE STRING,
LNG_DIR_CD TYPE STRING,
IS_EXIST_IN_UOM TYPE STRING,
IS_LOC_CHANGE TYPE STRING,
IS_GLOC_CHANGE TYPE STRING,
IS_GENRAL_DATA_CHANGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UPOS_MIG_DEH_UOM_DATA_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_UPOS_MIG_DEH_UOM_DATA_STR-NETOBJ_TYPE sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-TPLKZ sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-NETOBJ_ID sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-TPLNR sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-DEH_TYPE sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-EDITM sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-DEH_DESCR sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-FLTYP sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-VALID_FROM_DATE sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-VALID_TO_DATE sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-ALKEY sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-ALTXT sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-COUNTRY sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-REGION sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-COUNTRY_DESC sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-REGION_DESC sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-SEC_GEO_LOC sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-SHORE_IND sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-COMPANY_CODE sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-COST_CENTER sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-LATITUDE sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-LONGITUDE sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-OP_FL sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-RLF_USAGE_FL sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-LAT_DIR_CD sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-LNG_DIR_CD sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-IS_EXIST_IN_UOM sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-IS_LOC_CHANGE sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-IS_GLOC_CHANGE sy-vline 
WA_UPOS_MIG_DEH_UOM_DATA_STR-IS_GENRAL_DATA_CHANGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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