Display null values

Am writing a 3 tier program. I am using java applets and mysql. One of the functions is to display values from the table in an applet. The condition is to display fields from the table that are null. I have been able to disply not null values (but not in an applet) but not null values. Can someone please tell me if it is possible and if so how. Sample code would be soooo helpful.
thanx

http://forum.java.sun.com/thread.jsp?thread=503983&forum=48&message=2386043

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    A page is using PL/SQL script to display data. There are 2 display variables. Instead of bringing initial set of data, it displays NULL values. It "fixes" itself after changing variable values from a drop down menu. Why is that and how to fix it?

    If you plan on performing all of the work under the Click event, then you won't need to worry about assigning a Script scope to the variables, but if you are planning on using those variables outside of the Event, then David's answer is the way to go.
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    #Define at beginning of script
    $hashtable = @{}
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  • Need to display null values against table

    Hi All,
    I have one table in which I only need to display null values along with the rest of columns. for example
    ename sal date
    scott 2000 15/07/06
    Michal
    now my query should return---
    ename sal date
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    hare krishna
    Alok

    Maybe it is something like this?:
    michaels>  select column_name || ' contains ' ||
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  • Grouping to display null values for all the missing dates

    Hi SAP,
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    19-Jan-14       0.00
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    Regards.

    Hi,
    Thanks for your reply.
    Fyi, I am using a formula field in crystal report to display "0.00" for days in between as follows:
    whileprintingrecords;
    if Days_Between({Command.DocDate},next({Command.DocDate}),'dd-MMM-yy') = "" then "" else "0.00"
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    daysbetween = 0
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    thisdate = datevalue(datefield) + 1
    nextdate = datevalue(nextdatefield)
    if nextdate - thisdate > 1 then daysbetween = nextdate - thisdate else daysbetween = 1
    do
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    then output = output + totext(thisdate, format) + chr(10) _
    else _
    if nextdate - thisdate > 0 _
    then output = output + totext(thisdate, format)
    looptimes = looptimes + 1
    thisdate = thisdate + 1
    loop until looptimes = daysbetween
        Days_Between = output
    End Function
    The issue arise when when there is more than one missing dates in between but the null values ("0.00") displayed is only for the first missing dates and not for all the missing dates.
    Regards,
    Ting Wei 

  • Cannot display NULL values as 0

    I am trying to display a count by dates (which I am grouping by), but when the value is null, nothing displays and the dates are not displayed either. I want to display every date in the range entered in the prompt and its respective count, even if the count is '0', I want to see a '0'.
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    I have checked the boxes under Report Options for 'Convert Database NULL values to Default' and 'Convert Other NULL Values to Default'. I had also created a formula for the count and had selected 'Default Values For Nulls', and that didn't work either.
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    You can do so but using a stored procedure.I have done this...since I have got the same requirement.
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    eDate IN solidcor.AS_SS_EVENTS.EVT_TIMESTAMP%TYPE
    as
    dateDiff number;
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    dateDiff :=TRUNC(TO_NUMBER(SUBSTR((eDate-bDate),1, INSTR(eDate-bDate,' '))));
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    end;
    Regards,
    Amrita

  • Display null value

    hi how can i display the null value in th following query , where c512 got null value in position column
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    Edited by: user603350 on 2011/07/13 12:27 AM
    Edited by: user603350 on 2011/07/13 12:27 AM

    user603350 wrote:
    i try this
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    AND par.C_CODE IN ('C512','C70') If I understand you correctly: you want to display c_code column with null values, 'C512', and 'C70'.
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  • Keeping table description on change and not displaying NULL values

    I have the table grouped by BFY and then showing by fund. I can only get the description section to show up for the first fund and then when it changes funds nothing shows up. Then when the year changes again it appears.
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    Need to see your xml data structure. Can you send me the xml and RTF file to [email protected]? I will take a look.
    Thanks,
    Bipuser

  • Display NULL values in iGrids as space?

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    Hi Bodo,
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  • Display null value:Report Filter using Show/hide report filter

    Hi,
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    u r Thread is similar  to
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  • Display null values in crosstab report.

    I have a crosstab that will be sparsely populated.  The datatype of the cells in the crosstab are numeric.  I would like to have the cells that contain no data to have no value, but Crystal Reports inserts a zero there instead.
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    Thanks.
    Regards,
    Thanh

    There is a Display String formula for fields, accessed by right-clicking the field and selecting Format Field.  This is used to tell Crystal exactly what should be displayed for the field.  Add the following logic (basic syntax):
    if CurrentFieldValue = 0 then
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    end if
    This will cause all zero values to display as blank.  I added the "0.00" parameter to the cstr() function to show that's how you tell cstr() how you want the number formatted.  See the online help for cstr() for details.
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  • How to display null values in the graphs, when i select a date range?

    Hi,
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    Check out [this post|http://obiee101.blogspot.com/2009/04/obiee-showing-zero-in-bargraph.html].

  • Cannot Save NULL value to database

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    Hi Paul,
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  • Not to display the null values from data base

    Hiiii.
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    regards,
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