Search for Null values in the result of the query

I queries a database for modules. I want to display the e-mail address of users, if there is one, if there is an email address, I want to draw the attention of the user of the present and offer them the chance to enter one. I thought I'd use an if statement, but can understand how cod if 'e-mail eq null. If the statement is looking for the text null instead of a null value

VR;

or

--

Azadi Saryev
SABAI - Dee.com
http://www.SABAI-Dee.com

Tags: ColdFusion

Similar Questions

Best way to search for a value in the table
Hello world

Need help to decide which application should be used in the following scenario.
```
Table  temp_a
( col_1 varchar2(20),
 status_flag varchar2(10)
);
```
col_1 is the primary key

I want to know if a given value is present in "col_1" of the table "temp_a.

So what query wud be faster:

1.
```
 select count (*)
from temp_a
where col_1 = v_col_1   -- using variable to check for value
and status_flag ='active' ;
```
2.
```
 
 select count (*)
from temp_a
where col_1 = v_col_1   -- using variable to check for value
and status_flag ='active' 
and rownum =1 ;
```
Here, I am not concerned about the number (*), I just need to check if the v_col_1 is present or not.

1. then please let me know, if both are one and the same. or one of them is faster over another.

2. also, is there a better way to check?

Thank you
Abhishek
The two approaches are the same, because col_1 is a primary key.
I think that there is a query then faster:
```
select count (*)
from temp_a
where col_1 = v_col_1
;
```
Max
[My Italian blog Oracle | http://oracleitalia.wordpress.com/2010/02/07/aggiornare-una-tabella-con-listruzione-merge/]

Join does not work for NULL values on the join condition
Hello

I have the following problem.

SQL > select * from a;

X Y
---------- --------------------
1
2
3
4

SQL > select * from b;

A:
---------- --------------------
1
2

SQL > select f.x, f.y, s.b in f, s b
2 where f.x = s.b (+);
X Y B
---------- -------------------- ----------
1 1
2 2
4
3

SQL > select f.x, f.y, s.b in f, s b
2 where f.x = s.b (+)
3 and f.y = s.y;

no selected line

So now if I include a join condition more where null = null situation arises, it's working now.
Just tell her not to treat (1 and null) (1 and null) are the same.
What is the solution. This is an expected behavior.

Thank you
Pramod Garre
Pramod salvation,

Another way to use the outer join is,

Select f.x, f.y, s.b
of a, f, s b
where f.x = s.b (+)
and nvl(f.y,0) = nvl (s.y (+), 0);

Hope this will help you.

Thank you
Amit

NPE for rows with null values in the table of the adv
I created the table adv, 2 columns, equipped with two text fields. Initially the col2 is empty,
say that the structure is as follows:
```
              col1          col2
Hdr         Question    Answer
row1       abc           zxc
row2       pdd           null (user doesnt enter anything)
row3       zxc            lkj

APPLYBUTTON
```
When the user clicks on apply button I want to update these values in the table.

I don't know how to do that, but that's what I'm trying to do. Please guide me the right way if its wrong.

in LICS, I took the APPLYBUTTON action, got all lines of the object corresponding to the view, consulted with everyrow and I'm checking if there are values in the fields in the table, if the value zero, are simply print null. (we would not update on this line). . I could get o the part update, due to null pointer exception
I get on the row line null pointer exception [1].getAttribute("Answer") for row2, it prints the value of row1 however.

Here is the code I wrote:
Set of rows from the rowset = (RowSet) vo.getRowSet ();
Rank rank [] = vo.getAllRowsInRange ();
System.out.println ("row.length" + row.length);
for (int i = 0; i < row.length; i ++) {}
String question = row.getAttribute("Question").toString ();
String response = row [i].getAttribute("Answer").toString ();
If (question! = null & &!("".)) Equals (question. Trim()))
{
System.out.println ("Question line" + i + "-" + question);
}
on the other
{
System.out.println ("Question line" + i + "is null");
}

If (response! = null & &!("".)) Equals (Answer.Trim ()))
{
System.out.println ("Response line" + i + "-" + response);
}
on the other
{
System.out.println ("Response line" + i + "is null");
}

Why the NPE survey code, I'm checking for null value and you want to print the value null in the logfile... I can not to getAttribute() on the null field, why can not just give me null in the variable I'm assigning to?

You can guide me what approach to take, if it is not correct.
I must examine DataDictionary and collect data there?
Thanks in advance.
Hello

handle the exception of null on these two statements like this pointer

String question = "";
String response = "";

Try
{
question = row.getAttribute("Question").toString ();
}
catch (NullPointerException e)
{
question = "";
}

Try
{
answer = row.getAttribute("Answer").toString ();
}
catch (NullPointerException e)
{
response = "";
}

Si ( !("". Equals (question. Trim()))
{
System.out.println ("Question line" + i + "-" + question);
}
on the other
{
System.out.println ("Question line" + i + "is null");
}

Si ( !("". Equals (Answer.Trim ()))
{
System.out.println ("Response line" + i + "-" + response);
}
on the other
{
System.out.println ("Response line" + i + "is null");
}

Thank you
Gerard

When you search for available updates on the update site, I receive the 0x800A0046 error.

HELP 0X800A0046

How to ask a question
http://support.Microsoft.com/kb/555375 >

It helps those answering questions if you provide:

What is your full version of windows (32-bit or 64-bit) and service pack level. (Right-click on my computer and select properties: Windows version which is displayed on the general tab that results (for example, Windows XP Professional Service Pack 1;)) Windows Vista Edition SP2 family)?

You use what browser (exact version).

What application anti-virus or security suite is installed and your current subscription?

A 3rd party firewall is used instead the native Windows Firewall?

What other software products anti-malware are installed and running?

What updates you trying to install? (Number of KB)

Please do it in your next reply.

Information you provide will help someone to provide you with a relevant solution

What are the causes of error 0x800a0046

0x800a0046.html http://www.updatexp.com/>

-

December 16, 2005 when looking for updates available on the update site, you receive the 0x800A0046 error.

http://update.Microsoft.com/windowsupdate/v6/showarticle.aspx?articleid=20&LN=EN>

- -- ---

February 7, 2006 error message when you visit the Windows Update Web site or the Microsoft Update Web site:

"0x800A0046".

http://support.Microsoft.com/kb/910338/en-us>

--

July 2, 2010, you may receive an error message when you search for available updates on the Windows Update Web site or on the Microsoft Update Web site

http://support.Microsoft.com/?kbid=883821>

In most situations where the automatic updates and the system restore does not work, the usual causes are installed antivirus\security suite or malware.

run a CHKDSK followed by a defrag after anti-malware analysis good or two.

I recommend to download and install MalwareBytes' anti-malware (MBAM) and SUPERAntiSpyware (SAS).

Do a FULL scan with MalwareBytes' and SUPERAntiSpyware.

<>>

http://www.Malwarebytes.org/MBAM.php

Reset

<>>

http://www.SUPERAntiSpyware.com/

Reset

UTC/GMT is 02:23 on Saturday, February 25, 2012

Report shows a string "null" for null values.
Hello

I am new to BI Publisher and creating a report in the BI Publisher. In the game of null values, report prints as "null". I checked the query, it gives data blank (empty value) for null values. But in the report, it comes as value 'null' (string "null"). I need to show the report in the form of empty data for null values. Can you please help me to find the solution for this?

Thank you much in advance.

Concerning
Garza.
I responded to your cheque send only once.

How to find null values in the table
Hi experts,

my version is oracledb10g:

I am doubted simple.

for example:

create table ex1 (e varchar2 (20));

Insert ex1 (null).

insert into ex1 (e)

number of will be: 2

I can easily find the value "e".

so my question is:

How can I find null values in the table and I want to remove the null values from the table.
ADF 7 wrote:
Hi experts,

my version is oracledb10g:

I am doubted simple.

for example:

create table ex1 (e varchar2 (20));

Insert ex1 (null).

insert into ex1 (e)

number of will be: 2

It depends on what you expect. If you issue count (*) you ask Oracle "how many lines there. If you issue a County () you ask Oracle 'how non null values for are there. "

ADF 7 wrote:

I can easily find the value "e".

so my question is:

How can I find null values in the table and I want to remove the null values from the table.
```
delete from 
where  is null;
```
Ideally you would simply place a NOT NULL constraint on the column in question, thus prohibiting NULL values into the system (assuming that your business needs, it is that the column MUST always have a value).

Need to null values with the values of filling the date before weekend/holidays
I have a table with a Date column, column Type and rate column.

The problem is when the weekends and holidays, column Type and rate column are null.

I need all null values with the values of Type and fill rate before that date is the weekend and public holidays.

Example:

I have:

RATE OF TYPE DATE
07/01/2010 4510 PM 3.71
07/01/2010 CETE28 4.59
07/01/2010 TIIE28 4.95
07/02/2010 4510 PM 3.82
07/02/2010 CETE28 4.63
07/02/2010 TIIE28 5.11
* NULL NULL 07/03/2010 *.
* NULL NULL 07/04/2010 *.
07/05/2010 4510 PM 3.91
07/05/2010 CETE28 4.74
07/05/2010 TIIE28 5.25

Will be:

RATE OF TYPE DATE
07/01/2010 4510 PM 3.71
07/01/2010 CETE28 4.59
07/01/2010 TIIE28 4.95
07/02/2010 4510 PM 3.82
07/02/2010 CETE28 4.63
07/02/2010 TIIE28 5.11
* 07/03/2010 4510 PM 3.82*
* 07/03/2010 CETE28 4.63*
* 07/03/2010 TIIE28 5.11*
* 07/04/2010 4510 PM 3.82*
* 07/04/2010 CETE28 4.63*
* 07/04/2010 TIIE28 5.11*
07/05/2010 4510 PM 3.91
07/05/2010 CETE28 4.74
07/05/2010 TIIE28 5.25

What could I do?
Hello

You can use the analytic LAST_VALUE function to get the last day of work before each date into your table. It will be the same as the current day for every day of work.
Do it a self-join to combine each current line (c) with the last day of work (l):
```
WITH     got_last_work_day     AS
(
     SELECT     dt, type, rate
     ,     LAST_VALUE ( CASE
                    WHEN  type  IS NOT NULL
                    THEN  dt
                   END
                   IGNORE NULLS
                  ) OVER (ORDER BY dt)     AS last_work_day
     FROM     table_x
)
SELECT       c.dt, l.type, l.rate
FROM       got_last_work_day     c
JOIN       got_last_work_day     l  ON       (    c.dt          = l.dt
                         AND  c.type          = l.type
                         )
                       OR     (    c.last_work_day     = l.dt
                         AND  c.type          IS NULL
                         )
ORDER BY  c.dt
,       l.type
;
```
Among other things, I guess that the type is NULL if (and only if) the line represents a holiday or weekend, and that the combination (dt, type) is uniuqe.

Null value in the Datetime field

I have a form that inserts data, but the date fields have a value default (01/01/1900 12:00:00 AM) even if I do not insert a value for this field. How to enter a NULL value in the fields of datatime value MSSQL.instead default (01/01/1900 12:00:00 AM) that gets inserted?
Here's my insert statement.
< type CFLOCK = "exclusive" timeout = "10" >
< name CFQUERY = "InsertWorkflow."
DataSource = "" #request.app.DSN # ""
username = "" #request.app.bsruser # ""
Password = "#request.app.bsrPassword #" >
INSERT INTO #request.app.DB # .v_NAR_WorkFlowLog
([SatApp_ID]
[User_ReqApproval_Logon]
[User_ReqApproval_Date]
[Admin_ReqProcessed_Logon]
[Admin_ReqProcessed]
[Prelim_Approval_Level]
[Prelim_Approval_Date]
[Prelim_Approval_Explain]
[Req_Withdrawn_Date]
[Req_Withdrawn_Explain]
[Req_Denied_Date]
[Req_Denied_Explain]
[User_Req_FinalAppl_Date]
[Admin_FinalAppl_Date]
[DateLastUpdated]
[UpdatedBy])
VALUES
(#SatApp_ID #)
, "#User_ReqApproval_Logon #
, "#User_ReqApproval_Date #
, "#Admin_ReqProcessed_Logon #
, "#Admin_ReqProcessed #
, "#Prelim_Approval_Level #
, "#Prelim_Approval_Date #
, "#Prelim_Approval_Explain #
, "#Req_Withdrawn_Date #
, "#Req_Withdrawn_Explain #
, "#Req_Denied_Date #
, "#Req_Denied_Explain #
, "#User_Req_FinalAppl_Date #
, "#Admin_FinalAppl_Date #
, "#DateLastUpdated #
("#UpdatedBy #")
< / CFQUERY >
< / CFLOCK >
Thank you
Shearak

CFQueryParam would work? For example:

So, using your example, this would be your insert:

DataSource = "" #request.app.DSN # ""
username = "" #request.app.bsruser # ""
Password = "" #request.app.bsrPassword # ">"
INSERT INTO #request.app.DB # .v_NAR_WorkFlowLog
([SatApp_ID]
[User_ReqApproval_Logon]
[User_ReqApproval_Date]
[Admin_ReqProcessed_Logon]
[Admin_ReqProcessed]
[Prelim_Approval_Level]
[Prelim_Approval_Date]
[Prelim_Approval_Explain]
[Req_Withdrawn_Date]
[Req_Withdrawn_Explain]
[Req_Denied_Date]
[Req_Denied_Explain]
[User_Req_FinalAppl_Date]
[Admin_FinalAppl_Date]
[DateLastUpdated]
[UpdatedBy])
VALUES
(#SatApp_ID #)
, "#User_ReqApproval_Logon #
, "#User_ReqApproval_Date #
, "#Admin_ReqProcessed_Logon #
, "#Admin_ReqProcessed #
, "#Prelim_Approval_Level #
, "#Prelim_Approval_Date #
, "#Prelim_Approval_Explain #
, "#Req_Withdrawn_Date #
, "#Req_Withdrawn_Explain #
, "#Req_Denied_Date #
, "#Req_Denied_Explain #
, "#User_Req_FinalAppl_Date #
, "#Admin_FinalAppl_Date #
(, ' #UpdatedBy # ')

Null value in the selection list
I was wondering if there is a way to get a select list to return a value zero?

I have a query with a condition like this where clause
```
instr(upper("TYPE"),upper(nvl(:P3_TYPE,"TYPE"))) > 0 
```
Where: P3_TYPE is a selection list. However, when it is null, no value no is returned in the report of sql - I guess that the nvl function is not picking up with the null value. I just that it displays all of the records when the value is zero in the list.

Thanks in advance,
Trent
use
```
instr(upper("TYPE"),upper(nvl(DECODE(:P3_TYPE,'null',NULL,:P3_TYPE),"TYPE"))) > 0
```
When your selection list returns "null" for NULL values. Please note that select the return list value is a string that is not equivalent to PL/SQL NULL

See you soon,.
Hari

Inline when checking for null values
Hi, I'm currently stuck with a problem regarding the verification of null values. The problem revolves around an address line, where I want to display values such as roadname, number, zip code etc. The address line is supposed to be on a single line, no carriage return. The address line must be prepared for null values, if we say it have no house number. That's why I am attaching these tags with an if statement:

& lt;if@inline:HOUSENUMBER!= "? & gt; & lt;? HOUSE number? & gt; & lt;? end if? & gt;

But when I try this in my report, it seems that @inline BEEP do not take into account the signal no one checking the logical expression and always showing the content enclosed in the case. When I remove @inline, it works as it should, but there is a carriage return when the value is zero.

Does anybody know a solution for this?

Thanks in advance

Kim
Hi Kim

Hmmmm works for me. I noticed that you have a lack? just before the if. You can also try @inlines, it's a subtle difference in functionality.

Even without the FI doesn't text collapse left anyway?

Tim

Evolution of the null value in the data view tab
Is it possible to update a null value in the data view table tab? When I delete the value, it creates a sql such as

Update table set column is where id = 1;.

How to fill a null from the data tab?
I met (and displayed) on this same problem some time. (See forum article "invalid column index: getValidColumnIndex" in SQL Developer 1.5.4 . "") Jim Smith pointed out it seems to be the reappearance of an old bug.

There are some alternatives. One is "do-it-yourself" in the SQL or SQL worksheet * more. (I.e., "UPDATE someTable SET someColumn = NOTHING WHERE tablePKColumn = pkValue;". The other is to use an earlier version of SQL Developer for that in the view of table data. (I still have Developer SQL 1.5.1 installed just for this reason).

I hope this helps.

Hrsg.:.

How can I tell the mail client to search for new mail on the server?

How can I tell the mail client to search for new mail on the server?

Within the Mail app and display the Inbox you can pull down on the list of e-mail using your finger and you should see a small reel spinning gear. Which indicates that his check new email.

You can also go into the settings of e-mail and calendars Contacts and view the settings there. Examine the settings of "search for new data. If the Push is enabled, then messages will be pushed to you if the email provider supports this feature. You can also set your accounts to use Fetch and set the frequency, he's going to go out and look for new e-mail messages.

I have a new time capsule airport. How to limit the search for who can use the time capsule backup process?

I have a new time capsule airport. How to limit the search for who can use the time capsule backup process?

Set a password to disk... disk tab in the utility... and just give to those you want to use the TC...

Windows cannot find C:\WINDOWS\system32\rundll.exe. Make sure you typed the name correstly and then try again. To search for a file check the Start button and then click search.

I tried to launch my Spysweeper and found that is not there, then I re downloaded and I could not install it because it was already on my computer. I went to the control panel to remove and got the message:

Windows cannot find C:\WINDOWS\system32\rundll32.exe. Make sure you typed the name correctly and then try again. To search for a file, select the Start button and then check the search...

What should I do?

Hi gsrow,

You can go there!

Cannot find the Rundll32.exe file when you open the control panel:
http://support.Microsoft.com/kb/812340

Alternatively, copy the folder C:\Windows\System32\DllCache Rundll32.exe file to the System32 folder. Ramesh Srinivasan, Microsoft MVP [Windows Desktop Experience]

Search for Null values in the result of the query

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