MS SQL Server :: Unpivot Transformation Null Values

NULL Values In UNPIVOT Output Possible?

Feb 26, 2008

Hello everyone!

Maybe someone of you folks already stumbled upon this one and can help.

I'm using an Unpivot transform in a dataflow.
I want to unpivot various columns that are all of type dt_str(50).
Some of those (input) columns may contain NULL values in some rows, like this:

col1
col2
col3
col4

BusinessKey
val1
NULL
val3
val4

As I run this package, I'd expect the Unpivot's output looking like this:

BusinessKey
col1
val1

BusinessKey
col2
NULL

BusinessKey
col3
val3

BusinessKey
col4
val4

But Unpivot won't output a Key/Value pair if an input value is NULL.
So in fact the output looks like this (col2 is missing):

BusinessKey
col1
val1

BusinessKey
col3
val3

BusinessKey
col4
val4

The BOL documentation doesn't tell anything about Unpivot behaviour if input values are NULL (or at least I couldn't find it).

Now, is this a known problem?
If so, is there a fix or workaround so that I can tell Unpivot to output NULL values?

Thanks for your help!

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Ignoring NULL Values In LOOKUP Transformation.

Jun 28, 2006

Hi,

Can you please tell me the way to configure the LOOK UP transformation so that it will ignore all the null values ? I want to configure a Look up component for the column "Col1" as follows

All the NULL values of Col1 should not be considered for look-up process. They should be passed to the downstream component as valid rows.
All NOT NULL values of Col1 should be processed by the Look up component.
If there is no matching value present for any NOT NULL value of Col1 then it should be directed to error output.

Regards,

Gopi

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Unpivot Transformation

Dec 10, 2007

Hi,

my Source-Files are not normalized, so I want some Columns unpivot in Rows. For example my base Table looks something like that

ID ... CustomerNo1 ... CustomerName1 ... CustomerPhone1 ... CustomerNo2 ... CustomerName2 ... CustomerPhone2 ...

After Unpivoting I would like to have a structure like that, where all Attributevalues keep the same, but the different Customers in its own Row

ID ... CustomerNo ... CustomerName ... CustomerPhone

So I take the Unpivot-Transformation Task and configure it with this Values:

Input Column ....... Destination Column ........ Pivot Key Value
CustomerNo1 ....... CustomerNo ................... Customer1
CustomerName1 ... CustomerName .............. Customer1
CustomerPhone1 .. CustomerPhone .............. Customer1
CustomerNo2 ....... CustomerNo ................... Customer2
CustomerName2 ... CustomerName .............. Customer2
CustomerPhone2 .. CustomerPhone ............. Customer2

My Data Flow works fine and everything is going without any errors, but my Destination is without the 3rd Attribute (CustomerPhone). Whats wrong in my configuration?

Thanks ...
Jonas

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Exotic Unpivot Transformation

Jul 18, 2006

I totally give up.

I need to import an csv file with system monitor performance counters into a sql server 2005 database

example csv format:

"(PDH-CSV 4.0) (W. Europe Daylight Time)(-120)","Server1Memory\% Commited Bytes In Use", )","Server2Memory\%Commited Bytes In Use"
"07/18/2006 10:08:57.295","24.701095057336488","30.701095077776488"

and I want it to transform it into:

Time ServerName Memory\% Commited Bytes In Use
07/18/2006 10:08:57.295 Server1 24.701095057336488
07/18/2006 10:08:57.295 Server2 30.701095077776488

I have two problems:

I need to trim the servername from the column values
I need to insert an extra column ServerName and put those server names in it

I tried Unpivot and Fuzzy grouping in SSIS but it's al too fuzzy for me...

Any pointers someone?
Many thanks!

Regards,

Mop

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Unpivot Transformation And Expressions

Jan 12, 2007

I am using the unpivot transformation, but I can't figure out how to use an expression in the Pivot Key Value.

The denormalized table I want to unpivot has columns like Sunday_Qty, Monday_Qty, Tuesday_Qty, etc. Just before the unpivot component, I inserted a derived column component that adds fields like DateSun, DateMon, DateTue, etc. that resolves to values like 01/07/2007, 01/08/2007, etc.

So for the various rows in the Unpivot Transformation Editor, I entered DateSun, DateMon, DateTue, etc. for the Pivot Key Value, and "EntryDate" for the pivot key value column name.

The data pipeline gets unpivoted correctly, but the rows have the literal values "DateSun", "DateMon", etc. in the EntryDate column.

How do I tell SSIS to use the DateSun column instead of the string "DateSun"?

-Larry

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Unpivot And Pivot Transformation Issue

Mar 6, 2008

Hi

I have an Issue. Please find the sample of my data source

StudentID
Fee 1
Fee 1 Currency Type
Fee2
Fee 2 Currency Type

1
10
USD
20
INR

2
45
EUR
20
USD

If I need to transform this data, it should be like below Table.

ID
StudentId
FeeType
FeeAmount
CurrencyType

1
1
Fee 1
10
USD

2
1
Fee 2
20
INR

3
2
Fee 1
45
EUR

4
2
Fee 2
20
USD

I have selected columns Fee 1 and Fee 2 in Unpivot Transformation. I set the "FeeAmount" as Destination Column Name and "FeeType" as Pivot Key Value Column Name. I left the Pivot Key Value as is for all the selected columns. So far no issue that I am able to get the Fee Type and Fee Amount columns for my destination table.

But the issue is how to get the Currency Type for each corresponding coulmns? I was not able to get the currency type for each student. I hope you got my point. Please let me know If have further queries and hel me out to find this.

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Compressing Multiple Rows With Null Values To One Row With Out Null Values After A Pivot Transform

Jan 25, 2008

I have a pivot transform that pivots a batch type. After the pivot, each batch type has its own row with null values for the other batch types that were pivoted. I want to group two fields and max() the remaining batch types so that the multiple rows are displayed on one row. I tried using the aggregate transform, but since the batch type field is a string, the max() function fails in the package. Is there another transform or can I use the aggragate transform another way so that the max() will work on a string?

-- Ryan

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SQL Server 2012 :: Duplicate Values In UNPIVOT

Feb 18, 2015

I have a set of data in which i have a product number going through 6 stages and each stage has a date. Since the each stages are in columns, I have created a unpivot query to transpose the columns into rows.

The actual result data needs to be in format of

ProductNumber Event_NameEvent_Date Event_Days
101 Stage 1 2/13/2014 1
101 Stage 2 2/13/2014 0
101 Stage 3 2/18/2014 5
101 Stage 4 2/23/2014 5

However the result data i am getting is like

ProductNumber Event_NameEvent_Date Event_Days
101 Stage 1 2/13/2014 1
101 Stage 1 2/13/2014 0
101 Stage 1 2/18/2014 5
101 Stage 1 2/23/2014 5
101 Stage 2 2/13/2014 1
101 Stage 2 2/13/2014 0
101 Stage 2 2/18/2014 5
101 Stage 2 2/23/2014 5

The unpivot query is working fine however I am getting duplicate values in the result. For each productnumber there must be only 6 results however i am getting 24 rows for each product number due to duplication.

I have attached the code and the source data for reference

Code:
SELECT distinct ProductNumber ,
Event_Name ,
Event_Date ,
Event_Days
FROM(
SELECT ProductNumber ,

[Code] .....

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Can You Unpivot On Multiple Keys With The Unpivot Transform

Oct 17, 2006

Hi all,

I have more than 1 set of columns I'm trying to normalize, can an unpivot transform handle 2 unpivots around DIFFERENT keys in the same transform?

If not, would the suggestion be unpivot into temp tables for whatever needs normalizing, than run an update query to generate the row that is desired?

Thanks in advance.

Mark

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NULL Lookup Transformation

Oct 16, 2007

How to compare NULL to NULL in Lookup transformation?

I have a column (key) that has NULL value

and In my look up table, i assign NULL to -1, so i can get -1 when I join key to CD ( in lookup) ...

Num CD
-1 NULL
1 12
2 56

but when i run my package I keep getting no matching record.. i thnk it;s because of NULL value...
how can I resolve this?

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How To Assign Null In Derived Column Transformation Editor

Mar 28, 2007

Dear friends, can any one tell me how to assign null to the expression value in derived column transfromation editor?

thanks,

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Transformation For Lookups Between Two Values

Jul 6, 2006

I have a dimension table for Retail Order Size. Each row in the dimension has a Starting Value and Ending Value column pair. In TSQL, the correct RetailOrderSize key is found by using the BETWEEN statement, like so:

SELECT RetailLevelKEY

FROM dbo.DimRetailOrderSize

WHERE @Sec1Retail BETWEEN StartingValue AND EndingValue

Is there a Data Flow Task Transformation in SSIS that replicates this functionality, or some other way of getting to the same answer in SSIS?

Thanks in advance for your help

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NULL Values Returned When Reading Values From A Text File Using Data Reader.

Feb 23, 2007

I have a DTSX package which reads values from a fixed-length text file using a data reader and writes some of the column values from the file to an Oracle table. We have used this DTSX several times without incident but recently the process started inserting NULL values for some of the columns when there was a valid value in the source file. If we extract some of the rows from the source file into a smaller file (i.e 10 rows which incorrectly returned NULLs) and run them through the same package they write the correct values to the table, but running the complete file again results in the NULL values error. As well, if we rerun the same file multiple times the incidence of NULL values varies slightly and does not always seem to impact the same rows. I tried outputting data to a log file to see if I can determine what happens and no error messages are returned but it seems to be the case that the NULL values occur after pulling in the data via a Data Reader. Has anyone seen anything like this before or does anyone have a suggestion on how to try and get some additional debugging information around this error?

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Integration Services :: SSIS Reads Nvarchar Values As Null When Excel Column Includes Decimal And String Values

Dec 9, 2013

I have SQL Server 2012 SSIS. I have Excel source and OLE DB Destination.I have problem with importing CustomerSales column.CustomerSales values like 1000.00,2000.10,3000.30,NotAvailable.So I have decimal values and nvarchar mixed in on Excel column. This is requirement for solution.However SSIS reads only numeric values correctly and nvarchar values are set as Null. Why?

CREATE TABLE [dbo].[Import_CustomerSales](
[CustomerId] [nvarchar](50) NULL,
[CustomeName] [nvarchar](50) NULL,
[CustomerSales] [nvarchar](50) NULL
) ON [PRIMARY]

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Null Values For Datetime Values Converted To '0001-01-01'

Mar 29, 2006

Hi

can somebody explain me how I can assign a NULL value to a datetime type field in the script transformation editor in a data flow task.
In the script hereunder, Row.Datum1_IsNull is true, but still Row.OutputDatum1 will be assigned a value '0001-01-01' which generates an error (not a valid datetime). All alternatives known to me (CDate("") or Convert.ToDateTime("") or Convert.ToDateTime(System.DBNull.Value)) were not successful.
Leaving out the ELSE clause generates following error: Error: Year, Month, and Day parameters describe an un-representable DateTime.

If Not Row.Datum1_IsNull Then

Row.OutputDatum1 = Row.Datum1

Else

Row.OutputDatum1 = CDate(System.Convert.DBNull)

End If

Any help welcome.

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Use Order By But Want NULL Values As High Values

Nov 9, 2000

Hi,

My query "select blah, blah, rank from tablewithscores" will return results that can legitimately hold nulls in the rank column. I want to order on the rank column, but those nulls should appear at the bottom of the list

e.g.

Rank Blah Blah
1 - -
2 - -
3 - -
NULL - -
NULL - -

At present the NULLs are at the top of the list, but I do not want my ranking in descending order. Any suggestions?

Thanks
Dan

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Can The OLE DB Command Transformation Support Multiple Values Returned By A Stored Procedure Or Is The Limit One Value Only?

Apr 10, 2007

I have no problem getting OLE DB Command transformations to support single returns by a procedure.

For example, exec name_of_procedure ?,?,? OUTPUT

However, I have a stored procedure which accepts 1 input and returns 5 outputs. This procedure works fine at the command line but when I try to incorporate it into a OLE DB Command I don't get the multiple values returned. There's no problem at all configuring the transform as it recognizes all input and output parameters. For some reason I just don't get values returned.

thanks

John

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Integration Services :: SSIS Package - Replacing Null Values In One Column With Values From Another Column

Sep 3, 2015

I have an SSIS package that imports data from an Excel file, replaces any value in Excel that reads "NULL" to "", then writes the data to a couple of databases.

What I have discovered today, is I have two columns of dates, an admit date and discharge date column, and what I need to do is anywhere I have a null value in the discharge date column, I have to replace it with the value in the admit date column.

I have searched around online and tried a few things using the Replace funtion in Derived columns but no dice so far.

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Using NOT IN With Null Values

May 19, 2008

Hi, I ve a table, I want to fetch certain rows based on the value of a Column. That column is nullable, and contains NULL values.I used the following query,SELECT Col_A FROM TABLE1 WHERE SOME_ID = 1317 AND Col_B NOT IN (8,9) Here, Col_B contains NULL values too. I need to fetch all rows where Col_B is not 8 or 9.Now, if I use "NOT IN", it does not work. I tried reading on it and got to know why it does not work. Even "NOT EXISTS" does not help. But still I've to fetch my values. How do I do that?Thanks & Regards,Jahanzeb

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SQL Null Values In VB

Apr 10, 2006

I have tried doing a search, as I figured this would be a common problem, but I wasn't able to find anything. I know that my SP is functional because when I use VWD execute the query outside of the webpage, I get the correct results -however I have to ensure that a field is either entered, or set to <NULL>. In my SET's I want it to use the wildcards.
What I want is to do a search (plenty of existing topics on that, however none were of help to me). If a field is entered, then it is included in the search. Otherwise it should be ignored. In my VB I have the standard stored procedure call, passing in values to all of the parameters in the stored proc below:
CREATE PROCEDURE dbo.SearchDog@tagnum int,@ownername varchar(50), @mailaddress varchar(50),@address2 varchar(50),@city varchar(50),@telephone varchar(50),@doggender varchar(50),@dogbreed varchar(50),@dogage varchar(50),@dogcolour varchar(50),@dogname varchar(50),@applicationdate varchar(50)AS IF @tagnum=-1 SET @tagnum=NULL SET @ownername = '%'+@ownername+'%' SET @mailaddress = '%'+@mailaddress+'%' SET @address2='%'+@address2+'%' SET @city = '%'+@city+'%' SET @telephone='%'+@telephone+'%' SET @dogcolour='%'+@dogcolour+'%' SET @dogbreed='%'+@dogbreed+'%' SET @dogage='%'+@dogage+'%' SET @doggender='%'+@doggender+'%' SET @dogname='%'+@dogname+'%' SET @applicationdate='%'+@applicationdate+'%'
SELECT DISTINCT * FROM DogRegistry WHERE ( TagNum = @tagnum OR OwnerName LIKE @ownername OR MailAddress LIKE @mailaddress OR Address2 LIKE @address2 OR City LIKE @city OR Telephone LIKE @telephone OR DogGender LIKE @doggender OR DogBreed LIKE @dogbreed OR DogAge LIKE @dogage OR DogColour LIKE @dogcolour OR DogName LIKE @dogname OR ApplicationDate LIKE @applicationdate ) AND TagNum > 0GO
I don't know why it is creating links inside my SP -ignore them. TagNum is the primary key, if that makes a difference.
On the webpage, it ONLY works when every field has been filled (and then it will only return 1 row, as it should, given the data entered). Debugging has shown that when nothing is entered it passes "".
Any ideas?

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Null Values

Jun 29, 2000

I am trying to retrieve data from two different tables. One of the tables has more than 20 columns some of which are null. I would like to retrieve data from both tables excluding the columns which have null values. How do I do this?

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SUM When There Are Null Values.

Nov 2, 2007

Would this take care of null values in either a.asset or b.asset?

SELECT convert(decimal(15,1),(sum(isnull(a.asset,0))/1000.0)+(sum(isnull(b.asset,0))/1000.0)) as total_assets

What's throwing me off is that there are multiple a.asset or b.asset for each unique ID. It seems to work, but I'm not following the logic too well. If I were doing this in another language, I would loop through, summing a.asset and b.asset wherever it's not null for each unique ID.

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Null Values

Jan 16, 2006

Hi,

How can I use "Derived Column" to check if a Datetime value is null or not and if null to insert 00/00/00 instead. ?

The background being that while using a "Derived Column" to change a Column from a (DT_DATE) to a (DT_DBTIMESTAMP) everytime I get a null value it see's it as a error.

And the column in particular has ~ 37 K blank / null fields so Im getting a lot of errors

So far I have tried to use something like

ISNULL([Column 34])

Or

SELECT ISNULL(ID, '00/00/0000') FROM [Column 34]

Or

SELECT ISNULL(au_id, '00/00/0000 00:00') AS ssn
FROM [Column 34

but none seems to work [Column 34] being the offending column.

What a normally use is just a simple "(DT_DBTIMESTAMP)[Column 34]"
in the expression column, which seems to work well, but here I get alot of errors

Any ideas?

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Null Values

Apr 20, 2007

I set up a new SQL database file, in that file I allowed nulls, When I went through code to save the record, the exception is saying it doesnt allow nulls.

Before I get to involved with SQL, is it a bad practice to use nulls?

If it is what do you enter in place of the null value,

which will lead to more code, right?

Davids Learning SQL

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Does A Synchronous Transformation Process All Rows In A Buffer Before Outputting To Next Transformation?

Jun 5, 2006

Hi,

If you have two synchronous transformation components and the input of the second is connected to the output of the first, does the first transformation process (loop through) all rows in the buffer before outputting these rows to the second transformation? Or does the first transformation output each individual row to the second transormation as soon as it has finished processing it?

Thanks in advance,
Lawrie.

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Integration Services :: Difference Between Audit Transformation And Row-count Transformation?

Apr 22, 2015

tell me the difference between Audit transformation and rowcount transformation.

Because audit and rowcount transformation will provide the environment variables.

Only difference i am finding is rowcount returns the count of rows its updating .

Apart from these is there any other difference?

Tell me the scenario where i need to use the audit transformation.

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Dealing With Null Values

Jul 31, 2006

hi ive got a inert sub where i grab values from text boxes etxthe values are passed to a stored procedure however , one of these fields is a date field , but the field is not required ...so on this line if the date text box is left blank i get an error , not a valid date .Parameters.Add("@actiondate", SqlDbType.DateTime).Value = txtActionDate.Texti have tried ( the actiondate field can take nulls ..)if txtActionDate="" then .Parameters.Add("@actiondate", SqlDbType.DateTime).Value = nothing else.Parameters.Add("@actiondate", SqlDbType.DateTime).Value = txtActionDate.Textend if but this doesnt workwhat is the best way of allowing blank values to be passed to the stored procedure( it doesnt fall over with normal text / varchar fields ) thanks

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SQLDataSource And Null Values

Dec 20, 2006

I have a sproce that accepts null for one of its parameters I can execute the sproce and enter null and it works fine, it returns all rows. When I try doing this with my GridView and the SQLDataSource it does not work. I need some help in understanding how the SQLDatasource wants a null. Here is what the parameter row of the SQLDataSource looks like.
<asp:ControlParameter ControlID="EnteredByText" DefaultValue="Null" Name="EnteredBy" PropertyName="Text"
Type="String" ConvertEmptyStringToNull="true" />
In my sproce I have setup the parameter as follows;
@EnteredBy Nvarchar(50)=Null
In my WHERE Clause I have:
WHERE (tblClient.EnteredBy = @EnteredBy OR @EnteredBy IS NULL)

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How To Check For NULL Values In T-SQL

Jan 19, 2007

How can I check on NULL values in a Select statement?
SELECT ID FROM TabelWHERE somecolumn <> NULL??

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Querying When Some Values Are Null

Mar 5, 2007

I wonder if someone out there can help me. I am writing an ASP application to query a MSSQL database. The users will be able to use one or all of 4 columns. There may be time when the columns are empty (null). How can I write a select query to ignore null values? A rough example of what I am talking about it below.
select * from table where value1='something' value2=<null> value3='something' value4=<null>
I would like to ignore the null values so that in effect the statement would just do the following.
select * from table where value1='something' and value3='something'
I realize my syntax is wrong but I think you get the idea. Any thoughts?

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Selecting Null Values

Mar 12, 2007

I have a stored procedure that allows users to select addresses based on partially supplied information from the user. My procedure seems to work fine in all but a few cases. If a user decides to select all the rows for a particular country the procedure below does not return any rows even if the rows exist. I tracked this down to the fact that for Non US countries I set both the StateCode and Country Code to nulls. .
Below is a partial version of my code. Can anyone show me how I can do a "Like" Search even if some of the fields in the row contain null values?
Thanks
1 CREATE PROCEDURE dbo.Addresses_Like( @SendTo VarChar(50) = Null
2 , @AddressLine1 VarChar(50) = Null
3 , @AddressLine2 VarChar(50) = Null
4 , @City VarChar(50) = Null
5 , @StateCode VarChar(2) = Null
6 , @ZipCode VarChar(10) = Null
7 , @CountryCode VarChar(2) = Null)
8
9
10 Declare @SearchSendTo VarChar(50)
11 Declare @SearchAddressLine1 VarChar(50)
12 Declare @SearchAddressLine2 VarChar(50)
13 Declare @SearchCity VarChar(50)
14 Declare @SearchStateCode VarChar(2)
15 Declare @SearchZipCode VarChar(10)
16 Declare @SearchCountryCode VarChar(2)
17
18 If (@SendTo Is Null)
19 Set @SearchSendTo = ""
20 Else
21 Set @SearchSendTo = @SendTo
22
23 If (@AddressLine1 Is Null)
24 Set @SearchAddressLine1 = ""
25 Else
26 Set @SearchAddressLine1 = @AddressLine1
27
28 If (@AddressLine2 Is Null)
29 Set @SearchAddressLine2 = ""
30 Else
31 Set @SearchAddressLine2 = @AddressLine2
32
33 If (@City Is Null)
34 Set @SearchCity = ""
35 Else
36 Set @SearchCity = @City
37
38 If (@StateCode Is Null)
39 Set @SearchStateCode = ""
40 Else
41 Set @SearchStateCode = @StateCode
42
43 If (@ZipCode Is Null)
44 Set @SearchZipCode = ""
45 Else
46 Set @SearchZipCode = @ZipCode
47
48 If (@CountryCode Is Null)
49 Set @SearchCountryCode = ""
50 Else
51 Set @SearchCountryCode = @CountryCode
52
53
54 Select AddressID
55 , SendTo
56 , AddressLine1
57 , AddressLine2
58 , City
59 , StateCode
60 , ZipCode
61 , CountryCode
62 , RowVersion
63 , LastChangedDateTime
64 , OperID
65 From Addresses
66 Where SendTo Like RTrim(LTrim(@SearchSendTo)) + "%"
67 And AddressLine1 Like RTrim(LTrim(@SearchAddressLine1)) + "%"
68 And AddressLine2 Like RTrim(LTrim(@SearchAddressLine2)) + "%"
69 And City Like RTrim(LTrim(@SearchCity)) + "%"
70 And StateCode Like RTrim(LTrim(@SearchStateCode)) + "%"
71 And ZipCode Like RTrim(LTrim(@SearchZipCode)) + "%"
72 And CountryCode Like RTrim(LTrim(@SearchCountryCode)) + "%"
73 Order By CountryCode, City, AddressLine1, AddressLine2, SendTo

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Finding NULL Values

Apr 10, 2007

I want to write a query to bring out any records in a table
where any of its fields contain a null value. I could do it in this way:

select    *

from
customers
where name is
null
or         role
is null
or         email
is null
u003c/p>u003cp styleu003d"margin:0cm 0cm 0pt">u003cfont faceu003d"Times New Roman" sizeu003d"3">u003cfont coloru003d"#000000">However I want to perform a similar function for a number of tables and the method above would mean more sql and maintenance.u003cspan>� u003c/span>I was hoping there was a simple way to do the same thingu003cspan> ie find any rows with a blank fieldu003c/span>?u003cspan>u003cfont faceu003d"Arial" sizeu003d"2">� u003c/font>u003c/span>u003c/font>u003c/font>u003c/p>u003c/span>u003c/font>u003c/div>",0]
);
D(["ce"]);

//-->
However I want to perform a similar function for a
number of tables and the method above would mean more sql and maintenance. I was hoping there was a simple way to
do the same thing ie find any rows with a blank
field?

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