Inserting Zero instead of Null

Hi Guys,

I have the following SQL Code:

SELECT TOP (100) PERCENT

CAST(Item AS nvarchar(32)) AS Item,

CAST(Customer AS nvarchar(12)) AS Customer,

CAST(Warehouse AS nvarchar(12)) AS Warehouse,

MAX(CASE WHEN InvMonth = 'INV1' THEN CAST(Qty AS numeric(8, 0)) END) AS INV1,

MAX(CASE WHEN InvMonth = 'INV2' THEN CAST(Qty AS numeric(8, 0)) END) AS INV2,
MAX(CASE WHEN InvMonth = 'INV3' THEN CAST(Qty AS numeric(8, 0)) END) AS INV3,

MAX(CASE WHEN InvMonth = 'INV4' THEN CAST(Qty AS numeric(8,0)) END) AS INV4,

MAX(CASE WHEN InvMonth = 'INV5' THEN CAST(Qty AS numeric(8, 0)) END) AS INV5,
MAX(CASE WHEN InvMonth = 'INV6' THEN CAST(Qty AS numeric(8, 0)) END) AS INV6

FROM MVXReport.DMSExportStage1
GROUP BY CAST(Item AS nvarchar(32)), CAST(Customer AS nvarchar(12)), CAST(Warehouse AS nvarchar(12))
ORDER BY Item, Customer

And i am getting the following Results:

T100 APGL 10 1 6 2 1 3 3
T100 AUTOONE 10 NULL NULL NULL NULL NULL NULL
T100 CBCNSW 10 NULL NULL NULL NULL NULL NULL
T100 CBCQLD 10 NULL NULL NULL NULL 2 3
T100 CBCSA 10 NULL NULL NULL NULL NULL NULL
T100 CBCVIC 10 NULL NULL NULL NULL NULL NULL

I would like to know how to insert a 0 (zero) when the qty is null.. I have tried :

MAX(CASE WHEN InvMonth = 'INV1' THEN (CASE WHEN QTY IS NULL THEN (CAST(0 AS numeric(8, 0))) ELSE CAST(Qty AS numeric(8, 0)) END) END) AS INV1,

But it didnt seem to work.. If someone could point me in the right direction that would be wonderful..

thanks

Scotty

You could use COALESCE function for this task. Try change

CASE WHEN QTY IS NULL THEN (CAST(0 AS numeric(8, 0))) ELSE CAST(Qty AS numeric(8, 0)) END

to COALESCE(QTY,0)

|||

Try something like this:

isnull( Qty, 0 )

in each location where you have just Qty.

|||

Thanks Guys,

I have tried both of your solutions, but i am still getting null values. I can see why, as in the file that i am building these columns from, not every customer/Item every month has a record.. Hence why it is bringing back NULL..

Any other ideas...

thnkas

scotty

|||try this one instead

SELECT TOP (100) PERCENT
CAST(Item AS nvarchar(32)) AS Item,
CAST(Customer AS nvarchar(12)) AS Customer,
CAST(Warehouse AS nvarchar(12)) AS Warehouse,
COALESCE(MAX(CASE WHEN InvMonth = 'INV1' THEN CAST(Qty AS numeric(8, 0)) END),0) AS INV1,
COALESCE(MAX(CASE WHEN InvMonth = 'INV2' THEN CAST(Qty AS numeric(8, 0)) END),0) AS INV2,
COALESCE(MAX(CASE WHEN InvMonth = 'INV3' THEN CAST(Qty AS numeric(8, 0)) END),0) AS INV3,
COALESCE(MAX(CASE WHEN InvMonth = 'INV4' THEN CAST(Qty AS numeric(8,0)) END),0) AS INV4,
COALESCE(MAX(CASE WHEN InvMonth = 'INV5' THEN CAST(Qty AS numeric(8, 0)) END),0) AS INV5,
COALESCE(MAX(CASE WHEN InvMonth = 'INV6' THEN CAST(Qty AS numeric(8, 0)) END),0) AS INV6
FROM MVXReport.DMSExportStage1
GROUP BY
CAST(Item AS nvarchar(32)),
CAST(Customer AS nvarchar(12)),
CAST(Warehouse AS nvarchar(12))
ORDER BY
Item
, Customer|||

use

MAX(Isnull(CASE WHEN InvMonth = 'INV1' THEN CAST(Qty AS numeric(8, 0)) END,0)) AS INV1

--or

Isnull(MAX(CASE WHEN InvMonth = 'INV2' THEN CAST(Qty AS numeric(8, 0)) END),0) AS INV2

Inserting Unicode data

Hi.

We have a sql server db that we need to store Unicode text in. The fields are of the type nvarchar, ntext and nchar. Our solution uses both Oracle and SqlServer as a backing database. In Oracle there is a connection string switch "Unicode=True" that fixes the problem. Is there something similar in SqlServer? Since the db layer is generic we'ed like to avoid using a N' prefix on text strings in query statements.

Hi Kim,

As far as I can see, when the fields types are set to such as NVarChar and the update parameters have been set to the corresponding type, the data will be updated as Unicode in SQL Server. When updating the database, the N' prefix will be added automatically by ADO.NET.

That means you don't need to add anything additional to achieve this.

Are you getting some problem when updating the data in the way I mentioned? If so, please let me know the problem. Thanks!

|||

Hi Kevin,

Thank you for the response. The problem is that this is a system that's gone into production. The code is not written by me and I'm sorry to say it doesn't use command parameters for transfering variables. I guess the fix will have to wait until the next upgrade.

Inserting symbols in field

Hi All,
I am trying to insert symbols in a field of a table.

I am using the datatype nvarchar for the field.
However when i tried to insert a statement with the symbol pi, it comes out as following:
(A) 100? cm2 (B) 140? cm2 (C) 200? cm2

All the pi symbol are converted to ?.

Can ne 1 tell me how i can store such strings in the field.

Thanks

Both the client tool that inserts the symbol AND the client tool that displays the symbol MUST be capable of displaying the symbols. And the symbol for p is not included in the ascii set used by SSMS.

You can store unicode, and you can display unicode -you just can't do it with the SQL Server client tools.

How are you displaying the fields (what application?)

inserting symbols in field

Hi All,
I am trying to insert symbols in a field of a table.

I am using the datatype nvarchar for the field.
However when i tried to insert a statement with the symbol pi, it comes out as following:
(A) 100? cm2 (B) 140? cm2 (C) 200? cm2

All the pi symbol are converted to ?.

Can ne 1 tell me how i can store such strings in the field.

Thanks

You're not stating how you're inserting the strings. If you're inserting using a plain INSERT statement you must N-prefix the string literals when using nvarchar.

INSERT INTO thetable (thecolumn,anothercolumn) VALUES(N'whatever',N'however')

Inserting NULL when foreign key gets deleted.

I have a couple of tables in my database (SQL server 2000)
1. Student -- Columns are as
"StudentID" -- INT
"StudentName" -- NVARCHAR
"DepartmentID" -- INT
2. Department -- Columns are as
"DepartmentID" -- INT
"DepartmentName" -- NVARCHAR
So in the table "Student", the field "DepartmentID" is a foreign key. Now
what I need to do is that when I delete a row in the "Department" table, the
n
the rows in "Student" table where the to be deleted "Department ID" occurs
must *not* get deleted. Instead NULL should be inserted there.
Can this be achieved through database schema? Or is it something that needs
to be done through triggers?
A.
Locate me in the blogosphere: http://spaces.msn.com/aayushpuriIn 2005, you can define SET DEFAULT and SET NULL for a foreign key reference
(and of course CASCADE
and restrict). In 200, you need to write code for this(trigger, for example)
.
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
"Aayush Puri" <aayushpuri @. h o t m a i l . c o m> wrote in message
news:0F995DF3-EFED-475B-9F22-E96302A58F0B@.microsoft.com...
>I have a couple of tables in my database (SQL server 2000)
> 1. Student -- Columns are as
> "StudentID" -- INT
> "StudentName" -- NVARCHAR
> "DepartmentID" -- INT
> 2. Department -- Columns are as
> "DepartmentID" -- INT
> "DepartmentName" -- NVARCHAR
> So in the table "Student", the field "DepartmentID" is a foreign key. Now
> what I need to do is that when I delete a row in the "Department" table, t
hen
> the rows in "Student" table where the to be deleted "Department ID" occurs
> must *not* get deleted. Instead NULL should be inserted there.
> Can this be achieved through database schema? Or is it something that need
s
> to be done through triggers?
> A.
> --
> Locate me in the blogosphere: http://spaces.msn.com/aayushpuri|||Thanks a lot Tibor for the quick reply. In the meanwhile I also searched a
bit more for the solution to my problem. I got to this article on MSDN -
http://msdn.microsoft.com/library/d...fintegrity.asp.
It explains as to how to implement the "ON DELETE INSERT NULL" functionality
as TRIGGER in SQL server 2000.
A.
Locate me in the blogosphere: http://spaces.msn.com/aayushpuri
"Tibor Karaszi" wrote:

> In 2005, you can define SET DEFAULT and SET NULL for a foreign key referen
ce (and of course CASCADE
> and restrict). In 200, you need to write code for this(trigger, for exampl
e).
> --
> Tibor Karaszi, SQL Server MVP
> http://www.karaszi.com/sqlserver/default.asp
> http://www.solidqualitylearning.com/
>
> "Aayush Puri" <aayushpuri @. h o t m a i l . c o m> wrote in message
> news:0F995DF3-EFED-475B-9F22-E96302A58F0B@.microsoft.com...
>
>

Inserting NULL when foreign key gets deleted.

I have a couple of tables in my database (SQL server 2000)
1. Student -- Columns are as
"StudentID" -- INT
"StudentName" -- NVARCHAR
"DepartmentID" -- INT
2. Department -- Columns are as
"DepartmentID" -- INT
"DepartmentName" -- NVARCHAR
So in the table "Student", the field "DepartmentID" is a foreign key. Now
what I need to do is that when I delete a row in the "Department" table, then
the rows in "Student" table where the to be deleted "Department ID" occurs
must *not* get deleted. Instead NULL should be inserted there.
Can this be achieved through database schema? Or is it something that needs
to be done through triggers?
A.
--
Locate me in the blogosphere: http://spaces.msn.com/aayushpuriIn 2005, you can define SET DEFAULT and SET NULL for a foreign key reference (and of course CASCADE
and restrict). In 200, you need to write code for this(trigger, for example).
--
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
"Aayush Puri" <aayushpuri @. h o t m a i l . c o m> wrote in message
news:0F995DF3-EFED-475B-9F22-E96302A58F0B@.microsoft.com...
>I have a couple of tables in my database (SQL server 2000)
> 1. Student -- Columns are as
> "StudentID" -- INT
> "StudentName" -- NVARCHAR
> "DepartmentID" -- INT
> 2. Department -- Columns are as
> "DepartmentID" -- INT
> "DepartmentName" -- NVARCHAR
> So in the table "Student", the field "DepartmentID" is a foreign key. Now
> what I need to do is that when I delete a row in the "Department" table, then
> the rows in "Student" table where the to be deleted "Department ID" occurs
> must *not* get deleted. Instead NULL should be inserted there.
> Can this be achieved through database schema? Or is it something that needs
> to be done through triggers?
> A.
> --
> Locate me in the blogosphere: http://spaces.msn.com/aayushpuri|||Thanks a lot Tibor for the quick reply. In the meanwhile I also searched a
bit more for the solution to my problem. I got to this article on MSDN -
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnsql2k/html/sql_refintegrity.asp.
It explains as to how to implement the "ON DELETE INSERT NULL" functionality
as TRIGGER in SQL server 2000.
A.
--
Locate me in the blogosphere: http://spaces.msn.com/aayushpuri
"Tibor Karaszi" wrote:
> In 2005, you can define SET DEFAULT and SET NULL for a foreign key reference (and of course CASCADE
> and restrict). In 200, you need to write code for this(trigger, for example).
> --
> Tibor Karaszi, SQL Server MVP
> http://www.karaszi.com/sqlserver/default.asp
> http://www.solidqualitylearning.com/
>
> "Aayush Puri" <aayushpuri @. h o t m a i l . c o m> wrote in message
> news:0F995DF3-EFED-475B-9F22-E96302A58F0B@.microsoft.com...
> >I have a couple of tables in my database (SQL server 2000)
> > 1. Student -- Columns are as
> > "StudentID" -- INT
> > "StudentName" -- NVARCHAR
> > "DepartmentID" -- INT
> > 2. Department -- Columns are as
> > "DepartmentID" -- INT
> > "DepartmentName" -- NVARCHAR
> >
> > So in the table "Student", the field "DepartmentID" is a foreign key. Now
> > what I need to do is that when I delete a row in the "Department" table, then
> > the rows in "Student" table where the to be deleted "Department ID" occurs
> > must *not* get deleted. Instead NULL should be inserted there.
> > Can this be achieved through database schema? Or is it something that needs
> > to be done through triggers?
> >
> > A.
> >
> > --
> > Locate me in the blogosphere: http://spaces.msn.com/aayushpuri
>
>