ABAP Select data from SAP table BBPS_EXTREQ_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BBPS_EXTREQ_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 BBPS_EXTREQ_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 BBPS_EXTREQ_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_BBPS_EXTREQ_ITEM TYPE STANDARD TABLE OF BBPS_EXTREQ_ITEM,
      WA_BBPS_EXTREQ_ITEM TYPE BBPS_EXTREQ_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: <BBPS_EXTREQ_ITEM> TYPE BBPS_EXTREQ_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBPS_EXTREQ_ITEM
*  INTO TABLE @DATA(IT_BBPS_EXTREQ_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_BBPS_EXTREQ_ITEM INDEX 1 INTO DATA(WA_BBPS_EXTREQ_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBPS_EXTREQ_ITEM>-ITEM_GUID = 1.
<BBPS_EXTREQ_ITEM>-ITEM_NUMBER = 1.
<BBPS_EXTREQ_ITEM>-PARENT = 1.
<BBPS_EXTREQ_ITEM>-DESCRIPTION = 1.
<BBPS_EXTREQ_ITEM>-LANGU_ISO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBPS_EXTREQ_ITEM-METHOD, sy-vline,
  WA_BBPS_EXTREQ_ITEM-PRODUCT_GUID, sy-vline,
  WA_BBPS_EXTREQ_ITEM-PRODUCT_ID, sy-vline,
  WA_BBPS_EXTREQ_ITEM-PRODUCT_TYPE, sy-vline,
  WA_BBPS_EXTREQ_ITEM-PARTNER_PROD, sy-vline,
  WA_BBPS_EXTREQ_ITEM-MANU_PROD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBPS_EXTREQ_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_BBPS_EXTREQ_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_BBPS_EXTREQ_ITEM INTO WA_BBPS_EXTREQ_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 PRID1, internal->external for field PRODUCT_ID
CALL FUNCTION 'CONVERSION_EXIT_PRID1_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_EXTREQ_ITEM-PRODUCT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_EXTREQ_ITEM-PRODUCT_ID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GTIN1, internal->external for field PRODUCT_GTIN
CALL FUNCTION 'CONVERSION_EXIT_GTIN1_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_EXTREQ_ITEM-PRODUCT_GTIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_EXTREQ_ITEM-PRODUCT_GTIN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit NUMCV, internal->external for field REV_LEV
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_EXTREQ_ITEM-REV_LEV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_EXTREQ_ITEM-REV_LEV.
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_BBPS_EXTREQ_ITEM_STR, 
ITEM_GUID TYPE STRING,
ITEM_NUMBER TYPE STRING,
PARENT TYPE STRING,
DESCRIPTION TYPE STRING,
LANGU_ISO TYPE STRING,
METHOD TYPE STRING,
PRODUCT_GUID TYPE STRING,
PRODUCT_ID TYPE STRING,
PRODUCT_TYPE TYPE STRING,
PARTNER_PROD TYPE STRING,
MANU_PROD TYPE STRING,
MFR_NO_EXT TYPE STRING,
CATEGORY_ID TYPE STRING,
SCHEMA_TYPE TYPE STRING,
CT_CATEGORY_ID TYPE STRING,
ITM_EX_CT_UN_ID TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
UNIT_ISO TYPE STRING,
PRICE TYPE STRING,
PRICE_UNIT TYPE STRING,
CURRENCY TYPE STRING,
DIRECT_PROC TYPE STRING,
DELIV_DATE TYPE STRING,
EXT_DEMID TYPE STRING,
EXT_DEM_POSID TYPE STRING,
PRODUCT_GTIN TYPE STRING,
CTR_NUMBER TYPE STRING,
CTR_ITEM_NUMBER TYPE STRING,
DP_STGE_LOC TYPE STRING,
ITEM_TYPE TYPE STRING,
ORIGIN_ORDER_ID TYPE STRING,
ORIGIN_ITEM_ID TYPE STRING,
THIRD_PARTY TYPE STRING,
GROUPING_LEVEL TYPE STRING,
PERIOD_START TYPE STRING,
PERIOD_END TYPE STRING,
EXT_DEM_KEY TYPE STRING,
EXT_DEM_POSKEY TYPE STRING,
PROJECT_ID TYPE STRING,
PROJECT_TASK_ID TYPE STRING,
PROJECT_ROLE_ID TYPE STRING,
REV_LEV TYPE STRING,
SERVICE_ITEM_KEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBPS_EXTREQ_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_BBPS_EXTREQ_ITEM_STR-ITEM_GUID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-ITEM_NUMBER sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PARENT sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-DESCRIPTION sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-LANGU_ISO sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-METHOD sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PRODUCT_GUID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PRODUCT_ID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PRODUCT_TYPE sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PARTNER_PROD sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-MANU_PROD sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-MFR_NO_EXT sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-CATEGORY_ID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-SCHEMA_TYPE sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-CT_CATEGORY_ID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-ITM_EX_CT_UN_ID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-QUANTITY sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-UNIT sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-UNIT_ISO sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PRICE sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PRICE_UNIT sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-CURRENCY sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-DIRECT_PROC sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-DELIV_DATE sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-EXT_DEMID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-EXT_DEM_POSID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PRODUCT_GTIN sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-CTR_NUMBER sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-CTR_ITEM_NUMBER sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-DP_STGE_LOC sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-ITEM_TYPE sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-ORIGIN_ORDER_ID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-ORIGIN_ITEM_ID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-THIRD_PARTY sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-GROUPING_LEVEL sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PERIOD_START sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PERIOD_END sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-EXT_DEM_KEY sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-EXT_DEM_POSKEY sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PROJECT_ID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PROJECT_TASK_ID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-PROJECT_ROLE_ID sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-REV_LEV sy-vline 
WA_BBPS_EXTREQ_ITEM_STR-SERVICE_ITEM_KEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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