ABAP Select data from SAP table SPCT_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SPCT_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 SPCT_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 SPCT_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_SPCT_ITEM TYPE STANDARD TABLE OF SPCT_ITEM,
      WA_SPCT_ITEM TYPE SPCT_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: <SPCT_ITEM> TYPE SPCT_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SPCT_ITEM
*  INTO TABLE @DATA(IT_SPCT_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_SPCT_ITEM INDEX 1 INTO DATA(WA_SPCT_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SPCT_ITEM>-ITEM_ID = 1.
<SPCT_ITEM>-ITEM_ID_EXT = 1.
<SPCT_ITEM>-HIGH_LEVEL_ITEM_ID = 1.
<SPCT_ITEM>-PRODUCT_ID = 1.
<SPCT_ITEM>-PRODUCT_ERP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SPCT_ITEM-DECOUPLE_SUBITEMS, sy-vline,
  WA_SPCT_ITEM-MULTIPLICITY, sy-vline,
  WA_SPCT_ITEM-PRICING_RELEVANT, sy-vline,
  WA_SPCT_ITEM-RETURN_FLAG, sy-vline,
  WA_SPCT_ITEM-STATISTICAL, sy-vline,
  WA_SPCT_ITEM-UNCHANGEABLE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SPCT_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_SPCT_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_SPCT_ITEM INTO WA_SPCT_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 ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SPCT_ITEM-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SPCT_ITEM-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PRID1, internal->external for field PRODUCT_ID
CALL FUNCTION 'CONVERSION_EXIT_PRID1_OUTPUT'
  EXPORTING
    input =                      WA_SPCT_ITEM-PRODUCT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SPCT_ITEM-PRODUCT_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRODUCT_LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SPCT_ITEM-PRODUCT_LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SPCT_ITEM-PRODUCT_LOGSYS.
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_SPCT_ITEM_STR, 
ITEM_ID TYPE STRING,
ITEM_ID_EXT TYPE STRING,
HIGH_LEVEL_ITEM_ID TYPE STRING,
PRODUCT_ID TYPE STRING,
PRODUCT_ERP TYPE STRING,
DECOUPLE_SUBITEMS TYPE STRING,
MULTIPLICITY TYPE STRING,
PRICING_RELEVANT TYPE STRING,
RETURN_FLAG TYPE STRING,
STATISTICAL TYPE STRING,
UNCHANGEABLE TYPE STRING,
FIX_GROUP TYPE STRING,
EXCH_RATE_DATE TYPE STRING,
EXCH_RATE_TYPE TYPE STRING,
EXCH_RATE TYPE STRING,
ITEM_QUANTITY TYPE STRING,
ITEM_QUANTITY_UNIT TYPE STRING,
NUMERATOR TYPE STRING,
DENOMINATOR TYPE STRING,
EXPONENT TYPE STRING,
GROSS_WEIGHT TYPE STRING,
NET_WEIGHT TYPE STRING,
WEIGHT_UNIT TYPE STRING,
VOLUM TYPE STRING,
VOLUME_UNIT TYPE STRING,
POINTS TYPE STRING,
POINTS_UNIT TYPE STRING,
DAYS_PER_MONTH TYPE STRING,
DAYS_PER_YEAR TYPE STRING,
HOLIDAYS TYPE STRING,
DATE_FROM_B TYPE STRING,
DATE_TO_B TYPE STRING,
DAYS_B TYPE STRING,
WEEKS_B TYPE STRING,
MONTHS_B TYPE STRING,
YEARS_B TYPE STRING,
DATE_FROM_S TYPE STRING,
DATE_TO_S TYPE STRING,
DAYS_S TYPE STRING,
WEEKS_S TYPE STRING,
MONTHS_S TYPE STRING,
YEARS_S TYPE STRING,
TIMESTAMP_S TYPE STRING,
CONFIG_DATA TYPE STRING,
KB_NAME TYPE STRING,
KB_DATE TYPE STRING,
KB_LOGSYS TYPE STRING,
KB_VERSION TYPE STRING,
KB_PROFILE TYPE STRING,
KB_ID TYPE STRING,
EXT_CONFIG TYPE STRING,
HEADER TYPE STRING,
ROOT_ID TYPE STRING,
SCE TYPE STRING,
NAME TYPE STRING,
VERSION TYPE STRING,
LOGSYS TYPE STRING,
PROFILE TYPE STRING,
LANGUAGE TYPE STRING,
COMPLETE TYPE STRING,
CONSISTENT TYPE STRING,
INFO TYPE STRING,
BUILD TYPE STRING,
PART_OF TYPE STRING,
INSTANCES TYPE STRING,
VALUES TYPE STRING,
VARIANT_CONDITIONS TYPE STRING,
PRODUCT_ID TYPE STRING,
PRODUCT_TYPE TYPE STRING,
PRODUCT_LOGSYS TYPE STRING,
CONTEXT TYPE STRING,
IS_CONFIG_PART TYPE STRING,
ITEM_CALLBACK_INFO TYPE STRING,
ITEM_TYP TYPE STRING,
ATTRIBUTES TYPE STRING,
TIMESTAMPS TYPE STRING,
EXT_DATASOURCE TYPE STRING,
VARIANT_CONDITION TYPE STRING,
ITEM_COPY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SPCT_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_SPCT_ITEM_STR-ITEM_ID sy-vline 
WA_SPCT_ITEM_STR-ITEM_ID_EXT sy-vline 
WA_SPCT_ITEM_STR-HIGH_LEVEL_ITEM_ID sy-vline 
WA_SPCT_ITEM_STR-PRODUCT_ID sy-vline 
WA_SPCT_ITEM_STR-PRODUCT_ERP sy-vline 
WA_SPCT_ITEM_STR-DECOUPLE_SUBITEMS sy-vline 
WA_SPCT_ITEM_STR-MULTIPLICITY sy-vline 
WA_SPCT_ITEM_STR-PRICING_RELEVANT sy-vline 
WA_SPCT_ITEM_STR-RETURN_FLAG sy-vline 
WA_SPCT_ITEM_STR-STATISTICAL sy-vline 
WA_SPCT_ITEM_STR-UNCHANGEABLE sy-vline 
WA_SPCT_ITEM_STR-FIX_GROUP sy-vline 
WA_SPCT_ITEM_STR-EXCH_RATE_DATE sy-vline 
WA_SPCT_ITEM_STR-EXCH_RATE_TYPE sy-vline 
WA_SPCT_ITEM_STR-EXCH_RATE sy-vline 
WA_SPCT_ITEM_STR-ITEM_QUANTITY sy-vline 
WA_SPCT_ITEM_STR-ITEM_QUANTITY_UNIT sy-vline 
WA_SPCT_ITEM_STR-NUMERATOR sy-vline 
WA_SPCT_ITEM_STR-DENOMINATOR sy-vline 
WA_SPCT_ITEM_STR-EXPONENT sy-vline 
WA_SPCT_ITEM_STR-GROSS_WEIGHT sy-vline 
WA_SPCT_ITEM_STR-NET_WEIGHT sy-vline 
WA_SPCT_ITEM_STR-WEIGHT_UNIT sy-vline 
WA_SPCT_ITEM_STR-VOLUM sy-vline 
WA_SPCT_ITEM_STR-VOLUME_UNIT sy-vline 
WA_SPCT_ITEM_STR-POINTS sy-vline 
WA_SPCT_ITEM_STR-POINTS_UNIT sy-vline 
WA_SPCT_ITEM_STR-DAYS_PER_MONTH sy-vline 
WA_SPCT_ITEM_STR-DAYS_PER_YEAR sy-vline 
WA_SPCT_ITEM_STR-HOLIDAYS sy-vline 
WA_SPCT_ITEM_STR-DATE_FROM_B sy-vline 
WA_SPCT_ITEM_STR-DATE_TO_B sy-vline 
WA_SPCT_ITEM_STR-DAYS_B sy-vline 
WA_SPCT_ITEM_STR-WEEKS_B sy-vline 
WA_SPCT_ITEM_STR-MONTHS_B sy-vline 
WA_SPCT_ITEM_STR-YEARS_B sy-vline 
WA_SPCT_ITEM_STR-DATE_FROM_S sy-vline 
WA_SPCT_ITEM_STR-DATE_TO_S sy-vline 
WA_SPCT_ITEM_STR-DAYS_S sy-vline 
WA_SPCT_ITEM_STR-WEEKS_S sy-vline 
WA_SPCT_ITEM_STR-MONTHS_S sy-vline 
WA_SPCT_ITEM_STR-YEARS_S sy-vline 
WA_SPCT_ITEM_STR-TIMESTAMP_S sy-vline 
WA_SPCT_ITEM_STR-CONFIG_DATA sy-vline 
WA_SPCT_ITEM_STR-KB_NAME sy-vline 
WA_SPCT_ITEM_STR-KB_DATE sy-vline 
WA_SPCT_ITEM_STR-KB_LOGSYS sy-vline 
WA_SPCT_ITEM_STR-KB_VERSION sy-vline 
WA_SPCT_ITEM_STR-KB_PROFILE sy-vline 
WA_SPCT_ITEM_STR-KB_ID sy-vline 
WA_SPCT_ITEM_STR-EXT_CONFIG sy-vline 
WA_SPCT_ITEM_STR-HEADER sy-vline 
WA_SPCT_ITEM_STR-ROOT_ID sy-vline 
WA_SPCT_ITEM_STR-SCE sy-vline 
WA_SPCT_ITEM_STR-NAME sy-vline 
WA_SPCT_ITEM_STR-VERSION sy-vline 
WA_SPCT_ITEM_STR-LOGSYS sy-vline 
WA_SPCT_ITEM_STR-PROFILE sy-vline 
WA_SPCT_ITEM_STR-LANGUAGE sy-vline 
WA_SPCT_ITEM_STR-COMPLETE sy-vline 
WA_SPCT_ITEM_STR-CONSISTENT sy-vline 
WA_SPCT_ITEM_STR-INFO sy-vline 
WA_SPCT_ITEM_STR-BUILD sy-vline 
WA_SPCT_ITEM_STR-PART_OF sy-vline 
WA_SPCT_ITEM_STR-INSTANCES sy-vline 
WA_SPCT_ITEM_STR-VALUES sy-vline 
WA_SPCT_ITEM_STR-VARIANT_CONDITIONS sy-vline 
WA_SPCT_ITEM_STR-PRODUCT_ID sy-vline 
WA_SPCT_ITEM_STR-PRODUCT_TYPE sy-vline 
WA_SPCT_ITEM_STR-PRODUCT_LOGSYS sy-vline 
WA_SPCT_ITEM_STR-CONTEXT sy-vline 
WA_SPCT_ITEM_STR-IS_CONFIG_PART sy-vline 
WA_SPCT_ITEM_STR-ITEM_CALLBACK_INFO sy-vline 
WA_SPCT_ITEM_STR-ITEM_TYP sy-vline 
WA_SPCT_ITEM_STR-ATTRIBUTES sy-vline 
WA_SPCT_ITEM_STR-TIMESTAMPS sy-vline 
WA_SPCT_ITEM_STR-EXT_DATASOURCE sy-vline 
WA_SPCT_ITEM_STR-VARIANT_CONDITION sy-vline 
WA_SPCT_ITEM_STR-ITEM_COPY sy-vline      INTO ld_text SEPARATED BY SPACE.

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