ABAP Select data from SAP table QREVIEW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QREVIEW
*  INTO TABLE @DATA(IT_QREVIEW2).
*--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_QREVIEW INDEX 1 INTO DATA(WA_QREVIEW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QREVIEW>-MANDT = 1.
<QREVIEW>-PLVAR = 1.
<QREVIEW>-EVATY = 1.
<QREVIEW>-EVATX = 1.
<QREVIEW>-QOTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QREVIEW-QOBID, sy-vline,
  WA_QREVIEW-QSTXT, sy-vline,
  WA_QREVIEW-QCOMM, sy-vline,
  WA_QREVIEW-BOTYP, sy-vline,
  WA_QREVIEW-BOBID, sy-vline,
  WA_QREVIEW-BSTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QREVIEW 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_QREVIEW 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_QREVIEW INTO WA_QREVIEW.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_QREVIEW_STR, 
MANDT TYPE STRING,
PLVAR TYPE STRING,
EVATY TYPE STRING,
EVATX TYPE STRING,
QOTYP TYPE STRING,
QOBID TYPE STRING,
QSTXT TYPE STRING,
QCOMM TYPE STRING,
BOTYP TYPE STRING,
BOBID TYPE STRING,
BSTXT TYPE STRING,
BCOMM TYPE STRING,
SOTYP TYPE STRING,
QFLAG TYPE STRING,
BFLAG TYPE STRING,
SFLAG TYPE STRING,
SHORT TYPE STRING,
SSTXT TYPE STRING,
QOTXT TYPE STRING,
BOTXT TYPE STRING,
SOTXT TYPE STRING,
POINT TYPE STRING,
TOTLP TYPE STRING,
SOBID TYPE STRING,
KCRIT TYPE STRING,
JVATX TYPE STRING,
CRITX TYPE STRING,
JVALU TYPE STRING,
VALTX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
BEGDT TYPE STRING,
ENDDT TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
EXIST TYPE STRING,
PAGEP TYPE STRING,
PAGES TYPE STRING,
STEVA TYPE STRING,
EVAEV TYPE STRING,
EVAPA TYPE STRING,
NOTE TYPE STRING,
NOTEDEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QREVIEW_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_QREVIEW_STR-MANDT sy-vline 
WA_QREVIEW_STR-PLVAR sy-vline 
WA_QREVIEW_STR-EVATY sy-vline 
WA_QREVIEW_STR-EVATX sy-vline 
WA_QREVIEW_STR-QOTYP sy-vline 
WA_QREVIEW_STR-QOBID sy-vline 
WA_QREVIEW_STR-QSTXT sy-vline 
WA_QREVIEW_STR-QCOMM sy-vline 
WA_QREVIEW_STR-BOTYP sy-vline 
WA_QREVIEW_STR-BOBID sy-vline 
WA_QREVIEW_STR-BSTXT sy-vline 
WA_QREVIEW_STR-BCOMM sy-vline 
WA_QREVIEW_STR-SOTYP sy-vline 
WA_QREVIEW_STR-QFLAG sy-vline 
WA_QREVIEW_STR-BFLAG sy-vline 
WA_QREVIEW_STR-SFLAG sy-vline 
WA_QREVIEW_STR-SHORT sy-vline 
WA_QREVIEW_STR-SSTXT sy-vline 
WA_QREVIEW_STR-QOTXT sy-vline 
WA_QREVIEW_STR-BOTXT sy-vline 
WA_QREVIEW_STR-SOTXT sy-vline 
WA_QREVIEW_STR-POINT sy-vline 
WA_QREVIEW_STR-TOTLP sy-vline 
WA_QREVIEW_STR-SOBID sy-vline 
WA_QREVIEW_STR-KCRIT sy-vline 
WA_QREVIEW_STR-JVATX sy-vline 
WA_QREVIEW_STR-CRITX sy-vline 
WA_QREVIEW_STR-JVALU sy-vline 
WA_QREVIEW_STR-VALTX sy-vline 
WA_QREVIEW_STR-BEGDA sy-vline 
WA_QREVIEW_STR-ENDDA sy-vline 
WA_QREVIEW_STR-BEGDT sy-vline 
WA_QREVIEW_STR-ENDDT sy-vline 
WA_QREVIEW_STR-AEDTM sy-vline 
WA_QREVIEW_STR-UNAME sy-vline 
WA_QREVIEW_STR-EXIST sy-vline 
WA_QREVIEW_STR-PAGEP sy-vline 
WA_QREVIEW_STR-PAGES sy-vline 
WA_QREVIEW_STR-STEVA sy-vline 
WA_QREVIEW_STR-EVAEV sy-vline 
WA_QREVIEW_STR-EVAPA sy-vline 
WA_QREVIEW_STR-NOTE sy-vline 
WA_QREVIEW_STR-NOTEDEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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