ABAP Select data from SAP table BBPS_SEL_SEARCH_FIELD_PO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BBPS_SEL_SEARCH_FIELD_PO 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_SEL_SEARCH_FIELD_PO. 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_SEL_SEARCH_FIELD_PO 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_SEL_SEARCH_FIELD_PO TYPE STANDARD TABLE OF BBPS_SEL_SEARCH_FIELD_PO,
      WA_BBPS_SEL_SEARCH_FIELD_PO TYPE BBPS_SEL_SEARCH_FIELD_PO,
      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_SEL_SEARCH_FIELD_PO> TYPE BBPS_SEL_SEARCH_FIELD_PO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBPS_SEL_SEARCH_FIELD_PO
*  INTO TABLE @DATA(IT_BBPS_SEL_SEARCH_FIELD_PO2).
*--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_SEL_SEARCH_FIELD_PO INDEX 1 INTO DATA(WA_BBPS_SEL_SEARCH_FIELD_PO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBPS_SEL_SEARCH_FIELD_PO>-SELECTION_DATE = 1.
<BBPS_SEL_SEARCH_FIELD_PO>-CREATE_DATE_FROM = 1.
<BBPS_SEL_SEARCH_FIELD_PO>-CREATE_DATE_TO = 1.
<BBPS_SEL_SEARCH_FIELD_PO>-OBJECT_ID = 1.
<BBPS_SEL_SEARCH_FIELD_PO>-OBJECT_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBPS_SEL_SEARCH_FIELD_PO-VENDOR, sy-vline,
  WA_BBPS_SEL_SEARCH_FIELD_PO-REQUESTOR, sy-vline,
  WA_BBPS_SEL_SEARCH_FIELD_PO-PURCH_GRP, sy-vline,
  WA_BBPS_SEL_SEARCH_FIELD_PO-ITEM_NAME, sy-vline,
  WA_BBPS_SEL_SEARCH_FIELD_PO-PRODUCT, sy-vline,
  WA_BBPS_SEL_SEARCH_FIELD_PO-PARTNER_PROD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBPS_SEL_SEARCH_FIELD_PO 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_SEL_SEARCH_FIELD_PO 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_SEL_SEARCH_FIELD_PO INTO WA_BBPS_SEL_SEARCH_FIELD_PO.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field REF_OBJECT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_SEL_SEARCH_FIELD_PO-REF_OBJECT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_SEL_SEARCH_FIELD_PO-REF_OBJECT_ID.
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_SEL_SEARCH_FIELD_PO_STR, 
SELECTION_DATE TYPE STRING,
CREATE_DATE_FROM TYPE STRING,
CREATE_DATE_TO TYPE STRING,
OBJECT_ID TYPE STRING,
OBJECT_NAME TYPE STRING,
VENDOR TYPE STRING,
REQUESTOR TYPE STRING,
PURCH_GRP TYPE STRING,
ITEM_NAME TYPE STRING,
PRODUCT TYPE STRING,
PARTNER_PROD TYPE STRING,
CATEGORY TYPE STRING,
WITH_HIERARCHY TYPE STRING,
CTR_HDR_NUMBER TYPE STRING,
DESVENDOR TYPE STRING,
RECIPIENT TYPE STRING,
SC_NAME TYPE STRING,
REF_OBJECT_ID TYPE STRING,
PURCH_ORG TYPE STRING,
VENDOR_GUID TYPE STRING,
REQUESTOR_GUID TYPE STRING,
RECIPIENT_GUID TYPE STRING,
DESVENDOR_GUID TYPE STRING,
PRODUCT_GUID TYPE STRING,
CATEGORY_GUID TYPE STRING,
CTR_HDR_GUID TYPE STRING,
ACC_CAT TYPE STRING,
ACC_STR TYPE STRING,
DELIVERY_DATE_FROM TYPE STRING,
DELIVERY_DATE_TO TYPE STRING,
INCOMPLETE TYPE STRING,
STATUS_MIXED TYPE STRING,
WITH_VERSION TYPE STRING,
COMPANY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBPS_SEL_SEARCH_FIELD_PO_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_SEL_SEARCH_FIELD_PO_STR-SELECTION_DATE sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-CREATE_DATE_FROM sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-CREATE_DATE_TO sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-OBJECT_ID sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-OBJECT_NAME sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-VENDOR sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-REQUESTOR sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-PURCH_GRP sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-ITEM_NAME sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-PRODUCT sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-PARTNER_PROD sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-CATEGORY sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-WITH_HIERARCHY sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-CTR_HDR_NUMBER sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-DESVENDOR sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-RECIPIENT sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-SC_NAME sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-REF_OBJECT_ID sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-PURCH_ORG sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-VENDOR_GUID sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-REQUESTOR_GUID sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-RECIPIENT_GUID sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-DESVENDOR_GUID sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-PRODUCT_GUID sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-CATEGORY_GUID sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-CTR_HDR_GUID sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-ACC_CAT sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-ACC_STR sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-DELIVERY_DATE_FROM sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-DELIVERY_DATE_TO sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-INCOMPLETE sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-STATUS_MIXED sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-WITH_VERSION sy-vline 
WA_BBPS_SEL_SEARCH_FIELD_PO_STR-COMPANY sy-vline      INTO ld_text SEPARATED BY SPACE.

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