ABAP Select data from SAP table QNAOS_OBJ_DATA_PRINT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP QNAOS_OBJ_DATA_PRINT 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 QNAOS_OBJ_DATA_PRINT. 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 QNAOS_OBJ_DATA_PRINT 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_QNAOS_OBJ_DATA_PRINT TYPE STANDARD TABLE OF QNAOS_OBJ_DATA_PRINT,
      WA_QNAOS_OBJ_DATA_PRINT TYPE QNAOS_OBJ_DATA_PRINT,
      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: <QNAOS_OBJ_DATA_PRINT> TYPE QNAOS_OBJ_DATA_PRINT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QNAOS_OBJ_DATA_PRINT
*  INTO TABLE @DATA(IT_QNAOS_OBJ_DATA_PRINT2).
*--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_QNAOS_OBJ_DATA_PRINT INDEX 1 INTO DATA(WA_QNAOS_OBJ_DATA_PRINT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QNAOS_OBJ_DATA_PRINT>-OBJECT_GUID = 1.
<QNAOS_OBJ_DATA_PRINT>-QMNUM = 1.
<QNAOS_OBJ_DATA_PRINT>-FENUM = 1.
<QNAOS_OBJ_DATA_PRINT>-SORT_NO = 1.
<QNAOS_OBJ_DATA_PRINT>-OBJCAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QNAOS_OBJ_DATA_PRINT-OBJECT_TEXT, sy-vline,
  WA_QNAOS_OBJ_DATA_PRINT-SHORTTEXT, sy-vline,
  WA_QNAOS_OBJ_DATA_PRINT-CREATED_BY, sy-vline,
  WA_QNAOS_OBJ_DATA_PRINT-CREATED_ON_DATE, sy-vline,
  WA_QNAOS_OBJ_DATA_PRINT-CREATED_AT_TIME, sy-vline,
  WA_QNAOS_OBJ_DATA_PRINT-LAST_CHGD_BY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QNAOS_OBJ_DATA_PRINT 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_QNAOS_OBJ_DATA_PRINT 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_QNAOS_OBJ_DATA_PRINT INTO WA_QNAOS_OBJ_DATA_PRINT.


*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 QMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QNAOS_OBJ_DATA_PRINT-QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QNAOS_OBJ_DATA_PRINT-QMNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field SERIAL_NO
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_QNAOS_OBJ_DATA_PRINT-SERIAL_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QNAOS_OBJ_DATA_PRINT-SERIAL_NO.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit NUMCV, internal->external for field OPERATION_ID
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_QNAOS_OBJ_DATA_PRINT-OPERATION_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QNAOS_OBJ_DATA_PRINT-OPERATION_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DELIVERY_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QNAOS_OBJ_DATA_PRINT-DELIVERY_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QNAOS_OBJ_DATA_PRINT-DELIVERY_NO.
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_QNAOS_OBJ_DATA_PRINT_STR, 
OBJECT_GUID TYPE STRING,
QMNUM TYPE STRING,
FENUM TYPE STRING,
SORT_NO TYPE STRING,
OBJCAT TYPE STRING,
OBJECT_TEXT TYPE STRING,
SHORTTEXT TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON_DATE TYPE STRING,
CREATED_AT_TIME TYPE STRING,
LAST_CHGD_BY TYPE STRING,
LAST_CHGD_ON_DATE TYPE STRING,
LAST_CHGD_AT_TIME TYPE STRING,
BATCH_NO TYPE STRING,
STORLOC_BATCH TYPE STRING,
STATUS_BATCH TYPE STRING,
EXPIRY_DATE TYPE STRING,
SERIAL_NO TYPE STRING,
SERIAL_NO_EQUI TYPE STRING,
INSPLOT_NO TYPE STRING,
ORDER_NO TYPE STRING,
OPERATION_ID TYPE STRING,
DELIVERY_NO TYPE STRING,
DELIV_ITEM_NO TYPE STRING,
OBJCAT_TEXT TYPE STRING,
CONCATENATED_KEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QNAOS_OBJ_DATA_PRINT_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_QNAOS_OBJ_DATA_PRINT_STR-OBJECT_GUID sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-QMNUM sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-FENUM sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-SORT_NO sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-OBJCAT sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-OBJECT_TEXT sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-SHORTTEXT sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-CREATED_BY sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-CREATED_ON_DATE sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-CREATED_AT_TIME sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-LAST_CHGD_BY sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-LAST_CHGD_ON_DATE sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-LAST_CHGD_AT_TIME sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-BATCH_NO sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-STORLOC_BATCH sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-STATUS_BATCH sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-EXPIRY_DATE sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-SERIAL_NO sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-SERIAL_NO_EQUI sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-INSPLOT_NO sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-ORDER_NO sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-OPERATION_ID sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-DELIVERY_NO sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-DELIV_ITEM_NO sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-OBJCAT_TEXT sy-vline 
WA_QNAOS_OBJ_DATA_PRINT_STR-CONCATENATED_KEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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