How to choose the value null

Hi all

I use oracle 9i.
I have a Book table and there column: book_id, book_name, book_rating etc.
Books are rated on a scale of 1 to 10, and the database is associated with a book.
There are books that are not yet rated and these recordings has a null value in this column to book_rating.

I want to write a cursor that can browse this book_rating.
I started with a loop for iteration of 1.10 (because I in 1.10 loop)
and in this loop, I declare my cursor and where clause wrote:

where book_rating = i;

This condition will take care of the sides with a value of 1 to 10, but this custom work for null values.

How can I write this code so that I can understand the books that are not rated so far (null in the column book_rating)?

Thank you

Will be something like this help

FOR I IN 0..10
     SELECT ..
       FROM ..
      WHERE NVL(BOOK_RATE,0) = i;

Tags: Database

Similar Questions

  • How to choose the value of a string are numeric together and words of letters (for example, TEST)

    Hi all

    How to choose the value of a string are letters (for example, TEST) and all numeric...

    for example
    TEST 123456
    TEST 34567
    123456 ABCD
    1234 TEST
    TESTING 12345
    TEST [email protected]$
    YOUR T 123456

    I want the results of the query as below.
    TEST 123456
    TEST 34567

    And I tried to use regexp_like in this case but without success. See the code below.
    SELECT * FROM TABLE WHERE regexp_like (Description, ' [TEST] % & [[: digit:]] + $');

    How can I do this, please answer.

    Thank you


    If you want to return only the rows that contain the string 'TEST', followed by zero or more space characters, followed by one or more digits?

    How about this:

    SELECT *.

    FROM my_table

    WHERE REGEXP_LIKE(description,'^TEST\s*\d+$')

  • How to reset the value of a list of entry of null values



    How to reset the value of a list of entry of null values

    Thank you


    Place this code in your ViewRowImpl (base) class and use it when you need to reset _all attributes applied by LOV

    @Cvele: in fact, this will happen "by design" when you set the attribute which has attached lov to null, so there is no need of additional code.

    See also this blog: binary: prevent the execution of query unwanted in British Colombia ADF when used in Non - UI applications

    My previous answer is more related to this approach:

    DCBindingContainer bindings = (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
    DCIteratorBinding iterator = bindings.findIteratorBinding("IteratorName");
    Row r = iterator.getCurrentRow();
    r.setAttribute("SomeAttrib", null);


  • How to choose the textfield values form and calculate

    Treat all

    Urgent please help

    How to choose the textfield values form and calculate totals. IE when clint fill amount textfield other textfields automatically calculate and display values. I am using uninstall.

    Thanks in advance

    My code is more

    < ! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional / / IN" "" > ""

    " < html xmlns =" ">

    < head >

    < meta http-equiv = "Content-Type" content = text/html"; charset = utf-8 "/ >"

    < title > Untitled Document < /title >

    < / head >

    < body >

    < table width = "400" border = "0" align = "center" cellpadding = "0" cellspacing = "0" >

    < tr >

    < td width = "187" align = "right" valign = "middle" class = "KT_th" > < strong >

    < label for = "amount_gbp" > total (GBP): < / label >

    < / strong > < table >

    < td width = "14" height = "30" > < table >

    < td width = "199" height = "30" > < label >

    < input type = "text" name = "textfield" id = "textfield" / >

    < / label > < table >

    < /tr >

    < tr >

    < td align = "right" valign = "middle" class = "KT_th" > < strong >

    < label for = "admin_char_gbp" > Admin amount (GBP): < / label >

    < / strong > < table >

    < height td = "30" > < table >

    < height td = "30" > < label >

    < input type = "text" name = "textfield3" id = "textfield3" / >

    < / label > < table >

    < /tr >

    < tr >

    < td align = "right" valign = "middle" class = "KT_th" > < strong >

    < label for = "agent_char_gbp" > Agent Charges (GBP): < / label >

    < / strong > < table >

    < height td = "30" > < table >

    < height td = "30" > < label >

    < input type = "text" name = "textfield4" id = "textfield4" / >

    < / label > < table >

    < /tr >

    < tr >

    < td align = "right" valign = "middle" class = "KT_th" > < strong >

    < label for = "total_amount_gbp" > amount Total (GBP): < / label >

    < / strong > < table >

    < height td = "30" > < table >

    < height td = "30" > < label >

    < input type = "text" name = "textfield6" id = "textfield6" / >

    < / label > < table >

    < /tr >

    < tr >

    < td align = "right" valign = "middle" class = "KT_th" > < strong >

    < label for = "total_paid_gbp" > Total paid (GBP): < / label >

    < / strong > < table >

    < height td = "30" > < table >

    < height td = "30" > < label >

    < input type = "text" name = "textfield7" id = "textfield7" / >

    < / label > < table >

    < /tr >

    < tr >

    < td align = "right" valign = "middle" class = "KT_th" > < strong >

    < label for = "balance_gbp" > balance (GBP): < / label >

    < / strong > < table >

    < height td = "30" > < table >

    < height td = "30" > < label >

    < input type = "text" name = "textfield8" id = "textfield8" / >

    < / label > < table >

    < /tr >

    < /table >

    < / body >

    < / html >

    Here´s a pointer which will show you how to set the calculation within a javascript function: dynamically calculate the sum of the fields

    See you soon,.


  • Siri in him sending text with the value 'NULL '.

    When I say, "Siri, text my wife, 'X', ' Siri responds correctly,"here is your message to Jill: 'X'. "" "  "Ready to send it?"  I say 'Yes' and sends the message.  As soon as I get a text from my carrier saying the recipient of the message was invalid.  100% of the time, I see that Siri has sent a text with the value NULL.

    I tried to restart my phone.  I tried to remove and re-add my contacts.  Anyone else having this problem?  Someone knows how to solve?

    If it's by the carrier, you should contact them and see what they receive in return for their side. Ive had Siri send messages for me and I have never seen this one IOS.

  • using the function - how to use the values of the input variables on the table select statement names

    Hello community, I have a problem when creating a function. The purpose of this function is to check the table of weather gave yesterday or not. We must check this on different tables on different sachems. We are creating a function with input variables.



    in_schema IN VARCHAR2,

    in_tablename IN VARCHAR2,

    in_datefield IN VARCHAR2,




    -Declaring variables

    v_is_true INTEGER.




    WHEN MAX (in_datefield) = TRUNC(SYSDATE-1)

    THEN 1









    RETURN v_is_true;



    When creating, I got error: [error] ORA-00942 (44:19): PL/SQL: ORA-00942: table or view does not exist

    How to use the values of the input variables on the table select statement names?


    Here's a way you can use dynamic SQL statements for this task:



    in_schema IN VARCHAR2,

    in_tablename IN VARCHAR2,

    in_datefield IN VARCHAR2,

    in_first_date DATE DEFAULT SYSDATE - 1,.

    in_last_date DATE by DEFAULT NULL




    -IS_YDAYDATA_TO_TABLE returns 1 if in_schema.in_tablename.in_datefield

    -contains all the dates in the in_first_date of the range through included in_last_date

    - and it returns 0 if there is no such lines.

    -If in_last_date is omitted, the search only the data on in_first_date.

    -If in_first_date is omitted, it defaults to yesterday.

    -Time parts of the in_first_date and in_last_date are ignored.

    -Declaring variables

    sql_txt VARCHAR2 (1000);

    v_is_true INTEGER.


    sql_txt: = 'SELECT COUNT (*).

    || 'FROM ' | in_schema | '.' || in_tablename

    || 'WHERE ' | in_datefield | ' > =: d1'

    || «AND» | in_datefield | '< >

    || 'AND ROWNUM = 1';

    dbms_output.put_line (sql_txt |) '= sql_txt in IS_YDAYDATA_TO_TABLE");  -For debugging


    IN v_is_true

    With the HELP of TRUNC (in_first_date) - d1

    TRUNC (NVL (in_last_date



    ) + 1                -- d2


    RETURN v_is_true;

    END is_ydaydata_to_table;



    If you must use dynamic SQL statements, put all the SQL statement in a single string variable, such as sql_txt in the example above.  In this way, you can easily see exactly what will be executed.  Comment out the call to dbms_output under test is completed.

    Try to write functions that will address not only the question that you have now, but similar questions that you may have in the future.  For example, now that interest you only to the verification of the data of yesterday, but later, you might want to check another day or range of days.  The above function combines the convenience of a function simple (looks like yesterday data if you don't tell him otherwise) with the power of a more complex function (you can use the same function to check any day or range of days).

  • How to get the value with DBSequence in EL links


    I have a DBSequence type id and check if the value is null or positive

    #{bindings. Id.inputValue! = null and links. Id.inputValue > 0? {"Edit": "Create"} does not work because the links. Id.inputValue returns a DBSequence and cannot convert Long

    How to get the value?


    You can try this:

    #{bindings. Id.inputValue.sequenceNumber.value! = null and links. Id.inputValue.sequenceNumber.value > 0? {'Edit': 'Create'}

    Jean Lou

  • How to count the values in row


    50 columns in a table are and 10 records are there. In these 10 records are not inserted not all columns (some are null values). How to find the values of The Count of Record (row).

    For example

    P1 p2 p3 p4 p5 p6 p7 p8 p9 p10...

    10 20 30 40 50
    20 30
    60 80

    In the table below - before, how to find
    the number of values in 1 record is 5
    the number of values in 2nd record is 2
    the number of values in 3rd record is 2

    Thank you and best regards,
  • Please show or ask how to create the value of arrayOfValues of setValuesAtTimes parameter?

    Hello AEScriptComm,

    I have a few small scripts that use the method setValueAtTime successfully placing a keyframe on the existing layers of maskPath, but as you can see in the scripts below, results of setValueSatTimeS errors using IE: "Array is not of the correct type", "value is not an array" or "Null is not an object", depending on ,...

    (A) what variable is used as the value of parameter IE:


    . maskPath.value;

    . maskPath.value.vertices

    (B) what kind of table is used as the parameter value as in:

    var addTheseKeys = new Array ((1,2,3,4);    (as a parameter of the time)...

    (with either)

    var keyValues = new Array([10,10],[100,100],[15,50],[100,120]);             ...." ]) "


    var keyValues = [[10.10], [100 100], [15.50], [100 120]];                               ... (Array of arrays? RE: " ]] " )

    I just read a 'push' of the values in a table may be necessary?, but I was hoping someone who knew setValuesAtTimes could show it please...

    1) .. How to create the value of arrayOfValues of setValuesAtTimes parameter?

    1 (a): WORK setValueAtTime script...

    App.Project.Item (1) .layer (1).property("Masks").property ("mask 1");

    var app.project.item = myProperty (1) .layer (1) .mask (1) .maskPath;

    myShape = app.project.item (1) .layer (1) .mask (1).maskPath.value;


    1 (b): If there is no script setValuesAtTimes...

    prop1 = app.project.item var (1) .layer (1).property("ADBE_Transform_Group").property ("ADBE Position");

    var fourKeys = 4;

    var addTheseKeys = new Array (1,2,3,4),

    var keyValues = new Array (10, [10], [100 100], [15.50], [100 120]);

    var app.project.item = myProperty (1) .layer (1) .mask (1) .maskPath;

    myShape = app.project.item (1) .layer (1) .mask (1).maskPath.value;

    var myVertices = app.project.item (1) .layer (1) .mask (1).maskPath.vertices;

    myProperty.setValuesAtTimes (keyValues, addTheseKeys);

    app.beginUndoGroup ("Keys");

    ~ for (var k = 0; k < fourKeys; k ++)

    //~ {

    ~ prop1.setValueAtTime (keyValues [k], addTheseKeys [k]);

    //~ }

    myProperty.setValuesAtTimes (keyValues, addTheseKeys);

    app.endUndoGroup ();

    .. Thanks for any advise\suggestions,


    (A). maskPath.value; It's always a Shape(). (maskPath is a property, not of a shape on its own, and maskPath.value.vertices is only a part of the shape data).

    (B) nothing of what you propose... that is why your failed script fails.

    var keyValues = new Array([10,10],[100,100],[15,50],[100,120]); and

    var keyValues = [[10.10], [100 100], [15.50], [100 120]]; are just as good as arrays of points, the only thing is that keyValues are arrays of objects Shape().

    Read the guide and script for how to report a form of this post (just wrote it...):

    Your keyValues array should look like this: [keyValues0, keyValues1, keyValues2, keyValues3], where each entry is a Shape().


  • How to use the value of the page element in other pages too?

    Hi all

    How to pass the value of the item P26_NO from 26 to all other pages (such as 1, 2, 3... 25) using the & P26_NO. ???
    I set the default for this item.but I can't able to find value in the session state itself?

    Please post your suggestion here!

    Thank you and best regards,

    Robette wrote:
    Hi Amelia,.

    Through application process only we can able to save the page element value in session state? is there another way?
    Since my requirement is like I need to display footer text in all the pages, I have the version number included in this text, so I created a table and my intention to create an item and passing the point value for all other pages and see that point value & P26_NO. in the text. Version number is dynamic, it will change at each deployment.
    Is another way simple, other than my approach?

    Thank you best regards &,.

    You should use point demand for it and an application process to fill

    END IF;

    Published by: VC on June 25, 2012 13:48

  • How to get the values of page jspx (view layer) to the custom method defined in AM


    I have 1 text field and 1 submit to homepage.jspx. When I click the button submit, it will call the custom method defined in the 'Module of the Application' java class ( Can I know how to get the value of this text field in this custom method.

    I used the getter and setter method, however it didn't work as it is defining the value correctly, but get method returns null. Its not allowing to use FacesContext. Could someone please tell me how to get the value of the text field to this custom method (that is, using ADFContext,... something like that)

    Thanks in advance

    you have mixed up something here. Bean (as you did) cannot use the module of the application. They belong to different layers.
    I suggest you to look at some first tutorials ( or watch the developer guide and take a look at some of the videos


  • Calculated field with the currency formatting, and hiding the values null

    I am designing a PDF form for quote and I have a field defined to multiply the amount of an article and the unit price to the total price.  There are 5 lines on each quote, and if users are citing only 1 or 2 items I want the values null in fields unused price extended to be hidden.

    I did it with the following script

    If (event.value == 0) event.value = ";

    But when I enter the quantity and total price of price is displayed as a regular number (100) instead of currency ($100).

    I can format to currency with

    Event.Value = util.printf ("$%.2f", event.value);

    I don't know there's a way to combine to give rise to such a situation then, so if the field is 0, make null and if not then format as currency but I don't know how to do it.

    Any help would be appreciated.


    Newer versions of Acrobat hide zero for fields values using the number format and with a currency symbol. »

    But since you can't control the updating of user systems, you must use a small function documented for formatting numeric fields on the fly.

    With the extended price field set to 'None' format, you can add the following script to the Validation script "Custom" or add it to a custom JavaScript calculation. The "Custom Validation will work with any method of calculation. Note that the form must be cleaned or recalculated to see the result of the validation script change.

    if(Event.Value == 0) {}
    Event.Value = ""; set the field value to null to a value of zero
    AFNumber_Format (2, 0, 0, 0, "", true); number with no currency symbol format
    } else {}
    AFNumber_Format (2, 0, 0, 0, "$", true); for the format of the values non-null for number with the currency symbol

    The positional parameters are the number of decimal places, the Style separator, negative value Style, Style of (unused) currency, currency symbol, the currency symbol Pre-hanging chain.

  • How to get the value of the VO to the lov controller?


    Can I know how to get the values of the View object, then pass in lov controller to execute the query... pls help...

    I tried the below:

    ' Public Sub processRequest (pageContext OAPageContext, OAWebBean webBean)
    super.processRequest (pageContext, webBean);

    OAViewObject vo = (OAViewObject) am.findViewObject ("SeaoeAutoMosSummaryVO1");
    String s_it = (String) vo.getCurrentRow () .getAttribute ("ItemType"); / / If I enable this line, it will return the nullpointerexception error
    OAViewObject itemVO = (OAViewObject) am.findViewObject ("SeaoeAutoMosFIVO1");

    If ("lovValidate". Equals (PageContext.GetParameter (EVENT_PARAM)))
    itemVO.setWhereClause (null);
    System.out.println ("b4 execute111");
    itemVO.setWhereClauseParams (null);
    itemVO.executeQuery ();


    yuchijoyce wrote:

    I wanto add new line, the lov CO will have the value 2 in the base page move to filter the lov...
    the problem, I do face is: failed to get the vo value (new line) in lov CO.

    Try setting the PPR action with this field which will set the value in the session then get session value in the controller of the LOV and put the Original where clause.

    Thank you

  • Photoshop Elements 8, how to show the value, the hue and saturation of a specific area of a pickture?


    Photoshop Elements 8, how to show the value, the hue and saturation of a specific area of the image?

    How to choose the area? Which tool?

    Thank you in advance, Karl

    Make sure first that your range of information is visible: window menu / Info (shortcut F8)

    In this palette, click the small icon 'more '.

    Select "Palette Options".

    and choose HSB to second reading of palette.

  • How to set the value of a field from the LOV of another field.

    I'm trying to figure out how to set the value of a field (P_PROGRAM) to the value of another field of based lov (P_STATE).

    The P_PROGRAM field is a hidden field. The P_STATE field is a required field and is based on a list of values for the State Codes.

    When a user selects the State to P_STATE, the field of the P_PROGRAM should be set to this value, as well.

    I tried different ways to get there via a function call on the post for the calculation of the field P_STATE, defining the source P_PROGRAM to the value of the page item P_STATE put varialbles, creating a process before SENDING, and they all still come back as having a NULL value for P_PROGRAM, therefore impossible to create the file in the db as the PROGRAM is a mandatory field in the table.

    Can you please help? Thank you, Laura


    It is always helpful if you provide information about the Apex version you are using. The Apex 4 you can use Dynamic Actions to achieve this. In earlier versions is possible using processes to submit or javacsripts, as well.

    Heres how you do in 3.x with treatment to submit, to make it work in 4.0 as well.

    1 do the P_STATE ' select list submits the Page.
    2. Add a calculation on the point P_PROGRAM, or write to him assign a value based on a process. The treatment should be OnLoad after the header
    3. If the page does not have an unconditional branch that loops on itself, add a. NOTE: The direction must be the last branch (larger sequence number) and should have checked "Save Session State".

    This is what will happen
    a. when the State is selected Page will be submitted
    (b) it will take the unconditional branch to himself and save the value of P_STATE
    c. the calculation process / fills the value of the P_PROGRAM element when the page reloads

    Kind regards

Maybe you are looking for

  • Photos crashes at the start of the App

    OS X Photos falls down in a few seconds after I open it I am sure that the problem is specific to this library, as two other libraries of Photos I charge upward without crashing or any other question I had enough time to play with some preferences be

  • Windows Vista Desttop icons are not displayed correctly?

    When rinsing the Recycle Bin the Recycle Bin icon is supposed to look like empty. This isn't. In addition, other exporer icons in the folders do not the correct application Icon display. For example, Adobe reader. Is there a way to get the icons to d

  • Alignment of the boring cartridges disorder - PSC 1510 all-in-one

    Hello world. By years, I own a robust PSC 1510 that worked really well for me. the problems started when I bought a new HP laptop (pavilion dv6) with Windows 7 hope premium as the operating system. Of course, I have downloaded the latest driver and s

  • Deployment configuration Assistant problem

    I did everything up to the point where I enter the IP address of the Simulator, but it returns the following error: "Unable to connect: connect to / has expired.". Check the settings of IP address for the target. You may need to re

  • AutoComplete does not.

    Since the resettlement 4.2.1 JDE to my rebuilt the machine any instance of a class can I write does not seem AutoComplete for the names of fields and methods. Can anyone think why?