ABAP Select data from SAP table /SCMB/DM_REL_ITM_STR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCMB/DM_REL_ITM_STR
*  INTO TABLE @DATA(IT_/SCMB/DM_REL_ITM_STR2).
*--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_/SCMB/DM_REL_ITM_STR INDEX 1 INTO DATA(WA_/SCMB/DM_REL_ITM_STR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCMB/DM_REL_ITM_STR>-VRSIOID = 1.
</SCMB/DM_REL_ITM_STR>-ITMID = 1.
</SCMB/DM_REL_ITM_STR>-ORDID = 1.
</SCMB/DM_REL_ITM_STR>-CURR_ID = 1.
</SCMB/DM_REL_ITM_STR>-ORTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCMB/DM_REL_ITM_STR-CURR_CREA_TSTMP, sy-vline,
  WA_/SCMB/DM_REL_ITM_STR-RELEASE_HORIZON, sy-vline,
  WA_/SCMB/DM_REL_ITM_STR-PREV_ID, sy-vline,
  WA_/SCMB/DM_REL_ITM_STR-PREV_TSTMP, sy-vline,
  WA_/SCMB/DM_REL_ITM_STR-RECEIVED_QTY, sy-vline,
  WA_/SCMB/DM_REL_ITM_STR-RECEIVED_UNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCMB/DM_REL_ITM_STR 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_/SCMB/DM_REL_ITM_STR 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_/SCMB/DM_REL_ITM_STR INTO WA_/SCMB/DM_REL_ITM_STR.


*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 RELCV, internal->external for field CURR_ID
CALL FUNCTION 'CONVERSION_EXIT_RELCV_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-CURR_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-CURR_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CURR_CREA_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-CURR_CREA_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-CURR_CREA_TSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit RELCV, internal->external for field PREV_ID
CALL FUNCTION 'CONVERSION_EXIT_RELCV_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-PREV_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-PREV_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field PREV_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-PREV_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-PREV_TSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RECEIVED_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-RECEIVED_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-RECEIVED_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RECON_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-RECON_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-RECON_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DLVCV, internal->external for field LAST_DEL_ID
CALL FUNCTION 'CONVERSION_EXIT_DLVCV_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-LAST_DEL_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-LAST_DEL_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LAST_DEL_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-LAST_DEL_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-LAST_DEL_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit RELCV, internal->external for field REL_ID
CALL FUNCTION 'CONVERSION_EXIT_RELCV_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-REL_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-REL_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CUM_REL_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-CUM_REL_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-CUM_REL_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field ASN_RESET_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-ASN_RESET_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-ASN_RESET_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CRETST
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-CRETST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-CRETST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CHGTST
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-CHGTST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-CHGTST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ORDER_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/DM_REL_ITM_STR-ORDER_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/DM_REL_ITM_STR-ORDER_UNIT.
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_/SCMB/DM_REL_ITM_STR_STR, 
VRSIOID TYPE STRING,
ITMID TYPE STRING,
ORDID TYPE STRING,
CURR_ID TYPE STRING,
ORTYPE TYPE STRING,
CURR_CREA_TSTMP TYPE STRING,
RELEASE_HORIZON TYPE STRING,
PREV_ID TYPE STRING,
PREV_TSTMP TYPE STRING,
RECEIVED_QTY TYPE STRING,
RECEIVED_UNIT TYPE STRING,
RECON_QTY TYPE STRING,
RECON_UNIT TYPE STRING,
RECON_TSTMP TYPE STRING,
LAST_DEL_ID TYPE STRING,
LAST_DEL_ARRIV TYPE STRING,
LAST_DEL_QTY TYPE STRING,
LAST_DEL_UNIT TYPE STRING,
ACKNOWLEDGED TYPE STRING,
REJECTED TYPE STRING,
DOWNLOADED TYPE STRING,
PRINTED TYPE STRING,
VIEWED TYPE STRING,
REL_ID TYPE STRING,
UNLOAD_ID TYPE STRING,
UNLOAD_DUNS4 TYPE STRING,
UNLOAD_GLN TYPE STRING,
ACTION_CODE TYPE STRING,
PURPOSE_CODE TYPE STRING,
CUM_REL_SHIP TYPE STRING,
CUM_REL_UNIT TYPE STRING,
MAT_AUTHOR_DATE TYPE STRING,
FAB_AUTHOR_DATE TYPE STRING,
TRANSHIP_LOCNO TYPE STRING,
GR_LOCNO TYPE STRING,
FOLLOW_UP_CONF TYPE STRING,
FOLLOW_UP_DELV TYPE STRING,
KANBAN_IND TYPE STRING,
ASN_RESET_DATE TYPE STRING,
CREUSR TYPE STRING,
CRETST TYPE STRING,
CHGUSR TYPE STRING,
CHGTST TYPE STRING,
CHGMODE TYPE STRING,
OBJCHG TYPE STRING,
STATUSCHNG TYPE STRING,
REVISION_LEVEL TYPE STRING,
PURCH_GROUP TYPE STRING,
ORDER_UNIT TYPE STRING,
ORDER_UNIT_UMREZ TYPE STRING,
ORDER_UNIT_UMREN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCMB/DM_REL_ITM_STR_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_/SCMB/DM_REL_ITM_STR_STR-VRSIOID sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-ITMID sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-ORDID sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-CURR_ID sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-ORTYPE sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-CURR_CREA_TSTMP sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-RELEASE_HORIZON sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-PREV_ID sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-PREV_TSTMP sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-RECEIVED_QTY sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-RECEIVED_UNIT sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-RECON_QTY sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-RECON_UNIT sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-RECON_TSTMP sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-LAST_DEL_ID sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-LAST_DEL_ARRIV sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-LAST_DEL_QTY sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-LAST_DEL_UNIT sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-ACKNOWLEDGED sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-REJECTED sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-DOWNLOADED sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-PRINTED sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-VIEWED sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-REL_ID sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-UNLOAD_ID sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-UNLOAD_DUNS4 sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-UNLOAD_GLN sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-ACTION_CODE sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-PURPOSE_CODE sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-CUM_REL_SHIP sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-CUM_REL_UNIT sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-MAT_AUTHOR_DATE sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-FAB_AUTHOR_DATE sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-TRANSHIP_LOCNO sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-GR_LOCNO sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-FOLLOW_UP_CONF sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-FOLLOW_UP_DELV sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-KANBAN_IND sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-ASN_RESET_DATE sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-CREUSR sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-CRETST sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-CHGUSR sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-CHGTST sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-CHGMODE sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-OBJCHG sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-STATUSCHNG sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-REVISION_LEVEL sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-PURCH_GROUP sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-ORDER_UNIT sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-ORDER_UNIT_UMREZ sy-vline 
WA_/SCMB/DM_REL_ITM_STR_STR-ORDER_UNIT_UMREN sy-vline      INTO ld_text SEPARATED BY SPACE.

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