ABAP Select data from SAP table /SCMTMS/S_PLN_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCMTMS/S_PLN_ITEM
*  INTO TABLE @DATA(IT_/SCMTMS/S_PLN_ITEM2).
*--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_/SCMTMS/S_PLN_ITEM INDEX 1 INTO DATA(WA_/SCMTMS/S_PLN_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCMTMS/S_PLN_ITEM>-ITEM_KEY = 1.
</SCMTMS/S_PLN_ITEM>-PARENT_ITEM_KEY = 1.
</SCMTMS/S_PLN_ITEM>-ITEM_CAT = 1.
</SCMTMS/S_PLN_ITEM>-PLATENUMBER = 1.
</SCMTMS/S_PLN_ITEM>-RES_TIME_CHECK_REL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCMTMS/S_PLN_ITEM-MULTI_RESOURCE, sy-vline,
  WA_/SCMTMS/S_PLN_ITEM-COUNTRY_VEHIC_ID, sy-vline,
  WA_/SCMTMS/S_PLN_ITEM-TURES_TCO, sy-vline,
  WA_/SCMTMS/S_PLN_ITEM-TURES_CAT, sy-vline,
  WA_/SCMTMS/S_PLN_ITEM-SHIPPER_OWN, sy-vline,
  WA_/SCMTMS/S_PLN_ITEM-PROVISION_REQ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCMTMS/S_PLN_ITEM 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_/SCMTMS/S_PLN_ITEM 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_/SCMTMS/S_PLN_ITEM INTO WA_/SCMTMS/S_PLN_ITEM.


*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 QTYRN, internal->external for field AIR_EXCH_RATE
CALL FUNCTION 'CONVERSION_EXIT_QTYRN_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/S_PLN_ITEM-AIR_EXCH_RATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/S_PLN_ITEM-AIR_EXCH_RATE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field TEMP_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/S_PLN_ITEM-TEMP_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/S_PLN_ITEM-TEMP_UOM.
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_/SCMTMS/S_PLN_ITEM_STR, 
ITEM_KEY TYPE STRING,
PARENT_ITEM_KEY TYPE STRING,
ITEM_CAT TYPE STRING,
PLATENUMBER TYPE STRING,
RES_TIME_CHECK_REL TYPE STRING,
MULTI_RESOURCE TYPE STRING,
COUNTRY_VEHIC_ID TYPE STRING,
TURES_TCO TYPE STRING,
TURES_CAT TYPE STRING,
SHIPPER_OWN TYPE STRING,
PROVISION_REQ TYPE STRING,
EMPTY_RETURN_REQ TYPE STRING,
ORGANIZED_BY_ORDPARTY TYPE STRING,
VENT_SETT_CODE TYPE STRING,
AIR_EXCH_RATE TYPE STRING,
AIR_EXCH_UOM TYPE STRING,
CONS_CONT TYPE STRING,
SCHED_KEY TYPE STRING,
SCHED_DEP TYPE STRING,
VOYAGE_ID TYPE STRING,
FLIGHT_CODE TYPE STRING,
VESSEL_ID TYPE STRING,
IMO_ID TYPE STRING,
CONF_STATUS TYPE STRING,
FLIGHT_NUMBER TYPE STRING,
CT_SEQ TYPE STRING,
CT_TYPE TYPE STRING,
TEMP_CTRL_MIN TYPE STRING,
TEMP_CTRL_MAX TYPE STRING,
TEMP_UOM TYPE STRING,
AIR_HUMIDITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCMTMS/S_PLN_ITEM_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_/SCMTMS/S_PLN_ITEM_STR-ITEM_KEY sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-PARENT_ITEM_KEY sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-ITEM_CAT sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-PLATENUMBER sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-RES_TIME_CHECK_REL sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-MULTI_RESOURCE sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-COUNTRY_VEHIC_ID sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-TURES_TCO sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-TURES_CAT sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-SHIPPER_OWN sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-PROVISION_REQ sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-EMPTY_RETURN_REQ sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-ORGANIZED_BY_ORDPARTY sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-VENT_SETT_CODE sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-AIR_EXCH_RATE sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-AIR_EXCH_UOM sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-CONS_CONT sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-SCHED_KEY sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-SCHED_DEP sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-VOYAGE_ID sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-FLIGHT_CODE sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-VESSEL_ID sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-IMO_ID sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-CONF_STATUS sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-FLIGHT_NUMBER sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-CT_SEQ sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-CT_TYPE sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-TEMP_CTRL_MIN sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-TEMP_CTRL_MAX sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-TEMP_UOM sy-vline 
WA_/SCMTMS/S_PLN_ITEM_STR-AIR_HUMIDITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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