ABAP Select data from SAP table BBPS_WS_QUESTIONNAIRE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BBPS_WS_QUESTIONNAIRE 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_WS_QUESTIONNAIRE. 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_WS_QUESTIONNAIRE 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_WS_QUESTIONNAIRE TYPE STANDARD TABLE OF BBPS_WS_QUESTIONNAIRE,
      WA_BBPS_WS_QUESTIONNAIRE TYPE BBPS_WS_QUESTIONNAIRE,
      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_WS_QUESTIONNAIRE> TYPE BBPS_WS_QUESTIONNAIRE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBPS_WS_QUESTIONNAIRE
*  INTO TABLE @DATA(IT_BBPS_WS_QUESTIONNAIRE2).
*--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_WS_QUESTIONNAIRE INDEX 1 INTO DATA(WA_BBPS_WS_QUESTIONNAIRE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBPS_WS_QUESTIONNAIRE>-APPLICATION = 1.
<BBPS_WS_QUESTIONNAIRE>-ID = 1.
<BBPS_WS_QUESTIONNAIRE>-DESCRIPTION = 1.
<BBPS_WS_QUESTIONNAIRE>-PROCESS_MODE = 1.
<BBPS_WS_QUESTIONNAIRE>-DATA_GUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBPS_WS_QUESTIONNAIRE-SURVEY_ID, sy-vline,
  WA_BBPS_WS_QUESTIONNAIRE-METHOD, sy-vline,
  WA_BBPS_WS_QUESTIONNAIRE-CREATION_DATE, sy-vline,
  WA_BBPS_WS_QUESTIONNAIRE-CREATION_TIME, sy-vline,
  WA_BBPS_WS_QUESTIONNAIRE-OBJECT_GUID, sy-vline,
  WA_BBPS_WS_QUESTIONNAIRE-OBJECT_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBPS_WS_QUESTIONNAIRE 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_WS_QUESTIONNAIRE 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_WS_QUESTIONNAIRE INTO WA_BBPS_WS_QUESTIONNAIRE.


*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_WS_QUESTIONNAIRE-OBJECT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_WS_QUESTIONNAIRE-OBJECT_ID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit PRID1, internal->external for field PRODUCT_ID
CALL FUNCTION 'CONVERSION_EXIT_PRID1_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_WS_QUESTIONNAIRE-PRODUCT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_WS_QUESTIONNAIRE-PRODUCT_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_WS_QUESTIONNAIRE_STR, 
APPLICATION TYPE STRING,
ID TYPE STRING,
DESCRIPTION TYPE STRING,
PROCESS_MODE TYPE STRING,
DATA_GUID TYPE STRING,
SURVEY_ID TYPE STRING,
METHOD TYPE STRING,
CREATION_DATE TYPE STRING,
CREATION_TIME TYPE STRING,
OBJECT_GUID TYPE STRING,
OBJECT_ID TYPE STRING,
OBJECT_NAME TYPE STRING,
POSTING_DATE TYPE STRING,
VENDOR_NAME TYPE STRING,
SRVPROV_ID TYPE STRING,
SRVPROV_NAME TYPE STRING,
LOCATION_ID TYPE STRING,
PO_GUID TYPE STRING,
PO_NUMBER TYPE STRING,
PO_NAME TYPE STRING,
PO_ITEM_GUID TYPE STRING,
PO_ITEM_NO TYPE STRING,
ITEM_GUID TYPE STRING,
ITEM_NUMBER TYPE STRING,
CATEGORY_GUID TYPE STRING,
CATEGORY_NAME TYPE STRING,
PRODUCT_GUID TYPE STRING,
PRODUCT_NAME TYPE STRING,
OBJECT_TYPE TYPE STRING,
VENDOR_ID TYPE STRING,
PROC_ORG_ID TYPE STRING,
CATEGORY_ID TYPE STRING,
LOGSYS_SOURCE TYPE STRING,
PRODUCT_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBPS_WS_QUESTIONNAIRE_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_WS_QUESTIONNAIRE_STR-APPLICATION sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-ID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-DESCRIPTION sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-PROCESS_MODE sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-DATA_GUID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-SURVEY_ID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-METHOD sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-CREATION_DATE sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-CREATION_TIME sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-OBJECT_GUID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-OBJECT_ID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-OBJECT_NAME sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-POSTING_DATE sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-VENDOR_NAME sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-SRVPROV_ID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-SRVPROV_NAME sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-LOCATION_ID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-PO_GUID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-PO_NUMBER sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-PO_NAME sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-PO_ITEM_GUID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-PO_ITEM_NO sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-ITEM_GUID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-ITEM_NUMBER sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-CATEGORY_GUID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-CATEGORY_NAME sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-PRODUCT_GUID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-PRODUCT_NAME sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-OBJECT_TYPE sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-VENDOR_ID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-PROC_ORG_ID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-CATEGORY_ID sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-LOGSYS_SOURCE sy-vline 
WA_BBPS_WS_QUESTIONNAIRE_STR-PRODUCT_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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