ABAP Select data from SAP table QMS_QNOTIF_ITEM_EXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QMS_QNOTIF_ITEM_EXT
*  INTO TABLE @DATA(IT_QMS_QNOTIF_ITEM_EXT2).
*--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_QMS_QNOTIF_ITEM_EXT INDEX 1 INTO DATA(WA_QMS_QNOTIF_ITEM_EXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QMS_QNOTIF_ITEM_EXT>-DEFECTUUID = 1.
<QMS_QNOTIF_ITEM_EXT>-DUMMY_QMFE_INCL_EEW_PS = 1.
<QMS_QNOTIF_ITEM_EXT>-PRVBE = 1.
<QMS_QNOTIF_ITEM_EXT>-VLPLA = 1.
<QMS_QNOTIF_ITEM_EXT>-LGNUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QMS_QNOTIF_ITEM_EXT-VLTYP, sy-vline,
  WA_QMS_QNOTIF_ITEM_EXT-WERKS, sy-vline,
  WA_QMS_QNOTIF_ITEM_EXT-LGORT, sy-vline,
  WA_QMS_QNOTIF_ITEM_EXT-DEFECTCAUSEDBY, sy-vline,
  WA_QMS_QNOTIF_ITEM_EXT-CHARG, sy-vline,
  WA_QMS_QNOTIF_ITEM_EXT-KOSTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QMS_QNOTIF_ITEM_EXT 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_QMS_QNOTIF_ITEM_EXT 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_QMS_QNOTIF_ITEM_EXT INTO WA_QMS_QNOTIF_ITEM_EXT.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QMS_QNOTIF_ITEM_EXT-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QMS_QNOTIF_ITEM_EXT-KOSTL.
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_QMS_QNOTIF_ITEM_EXT_STR, 
DEFECTUUID TYPE STRING,
DUMMY_QMFE_INCL_EEW_PS TYPE STRING,
PRVBE TYPE STRING,
VLPLA TYPE STRING,
LGNUM TYPE STRING,
VLTYP TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
DEFECTCAUSEDBY TYPE STRING,
CHARG TYPE STRING,
KOSTL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QMS_QNOTIF_ITEM_EXT_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_QMS_QNOTIF_ITEM_EXT_STR-DEFECTUUID sy-vline 
WA_QMS_QNOTIF_ITEM_EXT_STR-DUMMY_QMFE_INCL_EEW_PS sy-vline 
WA_QMS_QNOTIF_ITEM_EXT_STR-PRVBE sy-vline 
WA_QMS_QNOTIF_ITEM_EXT_STR-VLPLA sy-vline 
WA_QMS_QNOTIF_ITEM_EXT_STR-LGNUM sy-vline 
WA_QMS_QNOTIF_ITEM_EXT_STR-VLTYP sy-vline 
WA_QMS_QNOTIF_ITEM_EXT_STR-WERKS sy-vline 
WA_QMS_QNOTIF_ITEM_EXT_STR-LGORT sy-vline 
WA_QMS_QNOTIF_ITEM_EXT_STR-DEFECTCAUSEDBY sy-vline 
WA_QMS_QNOTIF_ITEM_EXT_STR-CHARG sy-vline 
WA_QMS_QNOTIF_ITEM_EXT_STR-KOSTL sy-vline      INTO ld_text SEPARATED BY SPACE.

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