ABAP Select data from SAP table UPOS_MIG_PN_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_PN_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_PN_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_PN_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_PN_UOM_DATA TYPE STANDARD TABLE OF UPOS_MIG_PN_UOM_DATA,
      WA_UPOS_MIG_PN_UOM_DATA TYPE UPOS_MIG_PN_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_PN_UOM_DATA> TYPE UPOS_MIG_PN_UOM_DATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UPOS_MIG_PN_UOM_DATA
*  INTO TABLE @DATA(IT_UPOS_MIG_PN_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_PN_UOM_DATA INDEX 1 INTO DATA(WA_UPOS_MIG_PN_UOM_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UPOS_MIG_PN_UOM_DATA>-GHO_NETOBJ_TYPE = 1.
<UPOS_MIG_PN_UOM_DATA>-TPLNR = 1.
<UPOS_MIG_PN_UOM_DATA>-GHO_PN_DESC = 1.
<UPOS_MIG_PN_UOM_DATA>-SYSTEM_ID = 1.
<UPOS_MIG_PN_UOM_DATA>-GHO_PN_TZ = 1.

ENDLOOP.

LOOP AT IT_UPOS_MIG_PN_UOM_DATA INTO WA_UPOS_MIG_PN_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_PN_UOM_DATA-GHO_PN_SBD, sy-vline,
  WA_UPOS_MIG_PN_UOM_DATA-GHO_PN_NW_ALLOC, sy-vline,
  WA_UPOS_MIG_PN_UOM_DATA-NETID, sy-vline,
  WA_UPOS_MIG_PN_UOM_DATA-OPERATOR, sy-vline,
  WA_UPOS_MIG_PN_UOM_DATA-STATUS_PROFILE, sy-vline,
  WA_UPOS_MIG_PN_UOM_DATA-AUDIT_PROFILE_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UPOS_MIG_PN_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_PN_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_PN_UOM_DATA INTO WA_UPOS_MIG_PN_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 TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_UPOS_MIG_PN_UOM_DATA-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPOS_MIG_PN_UOM_DATA-TPLNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field RESZN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_UPOS_MIG_PN_UOM_DATA-RESZN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPOS_MIG_PN_UOM_DATA-RESZN.
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_PN_UOM_DATA_STR, 
GHO_NETOBJ_TYPE TYPE STRING,
TPLNR TYPE STRING,
GHO_PN_DESC TYPE STRING,
SYSTEM_ID TYPE STRING,
GHO_PN_TZ TYPE STRING,
GHO_PN_SBD TYPE STRING,
GHO_PN_NW_ALLOC TYPE STRING,
NETID TYPE STRING,
OPERATOR TYPE STRING,
STATUS_PROFILE TYPE STRING,
AUDIT_PROFILE_ID TYPE STRING,
CHEM_ANA_LEVEL TYPE STRING,
USER_STATUS_PROFILE TYPE STRING,
PN_HIERARCHY TYPE STRING,
NETOBJ_ID TYPE STRING,
NETOBJ_ID_CHG TYPE STRING,
TPLKZ TYPE STRING,
TXT_TPLKZ TYPE STRING,
EDITM TYPE STRING,
FLTYP TYPE STRING,
GHO_VALID_FROM TYPE STRING,
GHO_VALID_TO TYPE STRING,
ALKEY TYPE STRING,
ALTXT TYPE STRING,
TPLCP TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
SEC_GEO_LOC TYPE STRING,
SEC_GEO_DESC TYPE STRING,
ADRNR TYPE STRING,
COUNTRY_DESC TYPE STRING,
REGION_DESC TYPE STRING,
GHO_RESERVOIR TYPE STRING,
GHO_CONCESSION TYPE STRING,
GHO_PLATFORM TYPE STRING,
GHO_FIELD TYPE STRING,
FIELD_DESC TYPE STRING,
PLAT_DESC TYPE STRING,
RES_DESC TYPE STRING,
CON_DESC TYPE STRING,
RESZN TYPE STRING,
NAME TYPE STRING,
IS_LOC_CHANGE TYPE STRING,
IS_GD_CHANGE TYPE STRING,
IS_EXIST_IN_UOM TYPE STRING,
BUKRS TYPE STRING,
IS_COMP_CODE_CHANGE TYPE STRING,
IS_GENRAL_DATA_CHANGE TYPE STRING,
MEDIUM TYPE STRING,
FREQUENCY TYPE STRING,
IS_FREQ_CHANGE TYPE STRING,
IS_MEDIUM_CHANGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UPOS_MIG_PN_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_PN_UOM_DATA_STR-GHO_NETOBJ_TYPE sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-TPLNR sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-GHO_PN_DESC sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-SYSTEM_ID sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-GHO_PN_TZ sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-GHO_PN_SBD sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-GHO_PN_NW_ALLOC sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-NETID sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-OPERATOR sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-STATUS_PROFILE sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-AUDIT_PROFILE_ID sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-CHEM_ANA_LEVEL sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-USER_STATUS_PROFILE sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-PN_HIERARCHY sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-NETOBJ_ID sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-NETOBJ_ID_CHG sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-TPLKZ sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-TXT_TPLKZ sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-EDITM sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-FLTYP sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-GHO_VALID_FROM sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-GHO_VALID_TO sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-ALKEY sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-ALTXT sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-TPLCP sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-COUNTRY sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-REGION sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-SEC_GEO_LOC sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-SEC_GEO_DESC sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-ADRNR sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-COUNTRY_DESC sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-REGION_DESC sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-GHO_RESERVOIR sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-GHO_CONCESSION sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-GHO_PLATFORM sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-GHO_FIELD sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-FIELD_DESC sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-PLAT_DESC sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-RES_DESC sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-CON_DESC sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-RESZN sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-NAME sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-IS_LOC_CHANGE sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-IS_GD_CHANGE sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-IS_EXIST_IN_UOM sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-BUKRS sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-IS_COMP_CODE_CHANGE sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-IS_GENRAL_DATA_CHANGE sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-MEDIUM sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-FREQUENCY sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-IS_FREQ_CHANGE sy-vline 
WA_UPOS_MIG_PN_UOM_DATA_STR-IS_MEDIUM_CHANGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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