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Monday, March 12, 2012

Help with @@Rowcount

I am writing a vb.net application that calls a stored procedure and need some
help.
I am writting the procedure to check if multiple records exists and the only
way I can figure it out is to use @.@.RowCount, but can't get the right result,
please help.
What I have now is
if exists(select c_driver from cartons where orderid = @.orderid and
@.@.Rowcount = 1)
update...
I tried using the following but got an error in my vb application becuase
the Procedure was returning rows
select c_driver from cartons where orderid = @.orderid
if @.@.Rowcount = 1
update...
Is there any way to use the above query without returning rows to VB?
Is there a way to write an exists to query @.@.Rowcount?What are you querying @.@.ROWCOUNT for? @.@.ROWCOUNT returns the rowcount of
the last operation... I have a feeling you really want:
if (select COUNT(*) from cartons where orderid = @.orderid) = 1
update ...
Adam Machanic
SQL Server MVP
http://www.sqljunkies.com/weblog/amachanic
--
"John Shepherd" <JohnShepherd@.discussions.microsoft.com> wrote in message
news:7A9F67DA-3C32-445F-B9AD-8A69F4855292@.microsoft.com...
> I am writing a vb.net application that calls a stored procedure and need
some
> help.
> I am writting the procedure to check if multiple records exists and the
only
> way I can figure it out is to use @.@.RowCount, but can't get the right
result,
> please help.
> What I have now is
> if exists(select c_driver from cartons where orderid = @.orderid and
> @.@.Rowcount = 1)
> update...
>
> I tried using the following but got an error in my vb application becuase
> the Procedure was returning rows
> select c_driver from cartons where orderid = @.orderid
> if @.@.Rowcount = 1
> update...
> Is there any way to use the above query without returning rows to VB?
> Is there a way to write an exists to query @.@.Rowcount?
>
>|||I assume you want to update the row if it already exists and insert the row
if it doesn't exist. If so this should work...
UPDATE cartons SET
...
WHERE orderid = @.orderid
IF (@.@.ROWCOUNT = 0)
BEGIN
INSERT INTO cartons (...) VALUES (...)
END
Hope this helps.
Paul
"John Shepherd" wrote:
> I am writing a vb.net application that calls a stored procedure and need some
> help.
> I am writting the procedure to check if multiple records exists and the only
> way I can figure it out is to use @.@.RowCount, but can't get the right result,
> please help.
> What I have now is
> if exists(select c_driver from cartons where orderid = @.orderid and
> @.@.Rowcount = 1)
> update...
>
> I tried using the following but got an error in my vb application becuase
> the Procedure was returning rows
> select c_driver from cartons where orderid = @.orderid
> if @.@.Rowcount = 1
> update...
> Is there any way to use the above query without returning rows to VB?
> Is there a way to write an exists to query @.@.Rowcount?
>
>|||I tried the count() but I don't get what I need
what I need to do is determin is if a single driver is assigned to multiple
cartons within an order. for Instance say driver #1 was assigned to Carton
100 and driver #24 was assigned to Carton 101 and carton 102. All 3 of these
cartons are in Order #1000
Order# Carton# Driver#
1000 100 1
1000 101 24
1000 102 24
What I need to get to is this without the select (becuase doing it this way
returns an error in my vb.net application because the select wants to return
rows)
select c_driver from Cartons where orderid = @.orderid
if @.@.RowCount = 1
--Only one driver exists for this order
Update orders set oDriver = (select distinct c_driver from cartons
where orderid = @.orderid)
if @.@.RowCount > 1
-- Multiple Driver exists for this Order
"Adam Machanic" wrote:
> What are you querying @.@.ROWCOUNT for? @.@.ROWCOUNT returns the rowcount of
> the last operation... I have a feeling you really want:
> if (select COUNT(*) from cartons where orderid = @.orderid) = 1
> update ...
>
> --
> Adam Machanic
> SQL Server MVP
> http://www.sqljunkies.com/weblog/amachanic
> --
>
> "John Shepherd" <JohnShepherd@.discussions.microsoft.com> wrote in message
> news:7A9F67DA-3C32-445F-B9AD-8A69F4855292@.microsoft.com...
> > I am writing a vb.net application that calls a stored procedure and need
> some
> > help.
> >
> > I am writting the procedure to check if multiple records exists and the
> only
> > way I can figure it out is to use @.@.RowCount, but can't get the right
> result,
> > please help.
> >
> > What I have now is
> >
> > if exists(select c_driver from cartons where orderid = @.orderid and
> > @.@.Rowcount = 1)
> > update...
> >
> >
> > I tried using the following but got an error in my vb application becuase
> > the Procedure was returning rows
> >
> > select c_driver from cartons where orderid = @.orderid
> > if @.@.Rowcount = 1
> > update...
> >
> > Is there any way to use the above query without returning rows to VB?
> >
> > Is there a way to write an exists to query @.@.Rowcount?
> >
> >
> >
>
>|||I tried the count() but I don't get what I need
what I need to do is determin is if a single driver is assigned to multiple
cartons within an order. for Instance say driver #1 was assigned to Carton
100 and driver #24 was assigned to Carton 101 and carton 102. All 3 of these
cartons are in Order #1000
Order# Carton# Driver#
1000 100 1
1000 101 24
1000 102 24
What I need to get to is this without the select (becuase doing it this way
returns an error in my vb.net application because the select wants to return
rows)
select c_driver from Cartons where orderid = @.orderid
if @.@.RowCount = 1
--Only one driver exists for this order
Update orders set oDriver = (select distinct c_driver from cartons
where orderid = @.orderid)
if @.@.RowCount > 1
-- Multiple Driver exists for this Order
"Paul" wrote:
> I assume you want to update the row if it already exists and insert the row
> if it doesn't exist. If so this should work...
> UPDATE cartons SET
> ...
> WHERE orderid = @.orderid
> IF (@.@.ROWCOUNT = 0)
> BEGIN
> INSERT INTO cartons (...) VALUES (...)
> END
> Hope this helps.
> Paul
> "John Shepherd" wrote:
> > I am writing a vb.net application that calls a stored procedure and need some
> > help.
> >
> > I am writting the procedure to check if multiple records exists and the only
> > way I can figure it out is to use @.@.RowCount, but can't get the right result,
> > please help.
> >
> > What I have now is
> >
> > if exists(select c_driver from cartons where orderid = @.orderid and
> > @.@.Rowcount = 1)
> > update...
> >
> >
> > I tried using the following but got an error in my vb application becuase
> > the Procedure was returning rows
> >
> > select c_driver from cartons where orderid = @.orderid
> > if @.@.Rowcount = 1
> > update...
> >
> > Is there any way to use the above query without returning rows to VB?
> >
> > Is there a way to write an exists to query @.@.Rowcount?
> >
> >
> >|||Again, the COUNT(*) should do exactly what you need here... can you tell me
why this won't work for you:
if (select COUNT(*) from cartons where orderid = @.orderid) = 1
BEGIN
Update orders set oDriver = (select distinct c_driver from cartons
where orderid = @.orderid)
END
ELSE
BEGIN
-- do something else...
END
... Given that, however, I should ask why you're updating your orders table
with the driver from the cartons table? Why denormalize your data like
that?
Adam Machanic
SQL Server MVP
http://www.sqljunkies.com/weblog/amachanic
--
"John Shepherd" <JohnShepherd@.discussions.microsoft.com> wrote in message
news:41549C5D-63AA-46DA-92F4-A148A87D1143@.microsoft.com...
> I tried the count() but I don't get what I need
> what I need to do is determin is if a single driver is assigned to
multiple
> cartons within an order. for Instance say driver #1 was assigned to Carton
> 100 and driver #24 was assigned to Carton 101 and carton 102. All 3 of
these
> cartons are in Order #1000
> Order# Carton# Driver#
> 1000 100 1
> 1000 101 24
> 1000 102 24
> What I need to get to is this without the select (becuase doing it this
way
> returns an error in my vb.net application because the select wants to
return
> rows)
> select c_driver from Cartons where orderid = @.orderid
> if @.@.RowCount = 1
> --Only one driver exists for this order
> Update orders set oDriver = (select distinct c_driver from cartons
> where orderid = @.orderid)
> if @.@.RowCount > 1
> -- Multiple Driver exists for this Order
>
> "Adam Machanic" wrote:
> > What are you querying @.@.ROWCOUNT for? @.@.ROWCOUNT returns the rowcount
of
> > the last operation... I have a feeling you really want:
> >
> > if (select COUNT(*) from cartons where orderid = @.orderid) = 1
> > update ...
> >
> >
> >
> > --
> > Adam Machanic
> > SQL Server MVP
> > http://www.sqljunkies.com/weblog/amachanic
> > --
> >
> >
> > "John Shepherd" <JohnShepherd@.discussions.microsoft.com> wrote in
message
> > news:7A9F67DA-3C32-445F-B9AD-8A69F4855292@.microsoft.com...
> > > I am writing a vb.net application that calls a stored procedure and
need
> > some
> > > help.
> > >
> > > I am writting the procedure to check if multiple records exists and
the
> > only
> > > way I can figure it out is to use @.@.RowCount, but can't get the right
> > result,
> > > please help.
> > >
> > > What I have now is
> > >
> > > if exists(select c_driver from cartons where orderid = @.orderid and
> > > @.@.Rowcount = 1)
> > > update...
> > >
> > >
> > > I tried using the following but got an error in my vb application
becuase
> > > the Procedure was returning rows
> > >
> > > select c_driver from cartons where orderid = @.orderid
> > > if @.@.Rowcount = 1
> > > update...
> > >
> > > Is there any way to use the above query without returning rows to VB?
> > >
> > > Is there a way to write an exists to query @.@.Rowcount?
> > >
> > >
> > >
> >
> >
> >|||The problem with count() is that for my example would return 3 rows, I can
only update when all cartons in the orders have the same driver#.
I left out the DISTINCT in my example it should be:
select DISTINCT c_driver from Cartons where orderid = @.orderid
If all drivers are the same for the cartons in the Order I should have 1
row, if there a seperate drivers I should have more than 1 row
The way the db is set up is to have one row for an order in the Orders
Table, ? Rows in Cartons table joined together on Orders.orderid =Cartons.Orderid based on the #of cartons shipped with the order. All of the
pricing and driver commissions are based on the total $'s charged from the
Orders table. So I need to update the orders table with the correct driver
information, but only if the driver is the same. Little round about I know.
"Adam Machanic" wrote:
> Again, the COUNT(*) should do exactly what you need here... can you tell me
> why this won't work for you:
>
> if (select COUNT(*) from cartons where orderid = @.orderid) = 1
> BEGIN
> Update orders set oDriver = (select distinct c_driver from cartons
> where orderid = @.orderid)
> END
> ELSE
> BEGIN
> -- do something else...
> END
>
> ... Given that, however, I should ask why you're updating your orders table
> with the driver from the cartons table? Why denormalize your data like
> that?
>
> --
> Adam Machanic
> SQL Server MVP
> http://www.sqljunkies.com/weblog/amachanic
> --
>
> "John Shepherd" <JohnShepherd@.discussions.microsoft.com> wrote in message
> news:41549C5D-63AA-46DA-92F4-A148A87D1143@.microsoft.com...
> > I tried the count() but I don't get what I need
> >
> > what I need to do is determin is if a single driver is assigned to
> multiple
> > cartons within an order. for Instance say driver #1 was assigned to Carton
> > 100 and driver #24 was assigned to Carton 101 and carton 102. All 3 of
> these
> > cartons are in Order #1000
> >
> > Order# Carton# Driver#
> > 1000 100 1
> > 1000 101 24
> > 1000 102 24
> >
> > What I need to get to is this without the select (becuase doing it this
> way
> > returns an error in my vb.net application because the select wants to
> return
> > rows)
> >
> > select c_driver from Cartons where orderid = @.orderid
> > if @.@.RowCount = 1
> > --Only one driver exists for this order
> > Update orders set oDriver = (select distinct c_driver from cartons
> > where orderid = @.orderid)
> >
> > if @.@.RowCount > 1
> > -- Multiple Driver exists for this Order
> >
> >
> > "Adam Machanic" wrote:
> >
> > > What are you querying @.@.ROWCOUNT for? @.@.ROWCOUNT returns the rowcount
> of
> > > the last operation... I have a feeling you really want:
> > >
> > > if (select COUNT(*) from cartons where orderid = @.orderid) = 1
> > > update ...
> > >
> > >
> > >
> > > --
> > > Adam Machanic
> > > SQL Server MVP
> > > http://www.sqljunkies.com/weblog/amachanic
> > > --
> > >
> > >
> > > "John Shepherd" <JohnShepherd@.discussions.microsoft.com> wrote in
> message
> > > news:7A9F67DA-3C32-445F-B9AD-8A69F4855292@.microsoft.com...
> > > > I am writing a vb.net application that calls a stored procedure and
> need
> > > some
> > > > help.
> > > >
> > > > I am writting the procedure to check if multiple records exists and
> the
> > > only
> > > > way I can figure it out is to use @.@.RowCount, but can't get the right
> > > result,
> > > > please help.
> > > >
> > > > What I have now is
> > > >
> > > > if exists(select c_driver from cartons where orderid = @.orderid and
> > > > @.@.Rowcount = 1)
> > > > update...
> > > >
> > > >
> > > > I tried using the following but got an error in my vb application
> becuase
> > > > the Procedure was returning rows
> > > >
> > > > select c_driver from cartons where orderid = @.orderid
> > > > if @.@.Rowcount = 1
> > > > update...
> > > >
> > > > Is there any way to use the above query without returning rows to VB?
> > > >
> > > > Is there a way to write an exists to query @.@.Rowcount?
> > > >
> > > >
> > > >
> > >
> > >
> > >
>
>|||SELECT COUNT(DISTINCT(DriverNum)) FROM Cartons ?
Paul
"John Shepherd" wrote:
> The problem with count() is that for my example would return 3 rows, I can
> only update when all cartons in the orders have the same driver#.
> I left out the DISTINCT in my example it should be:
> select DISTINCT c_driver from Cartons where orderid = @.orderid
> If all drivers are the same for the cartons in the Order I should have 1
> row, if there a seperate drivers I should have more than 1 row
> The way the db is set up is to have one row for an order in the Orders
> Table, ? Rows in Cartons table joined together on Orders.orderid => Cartons.Orderid based on the #of cartons shipped with the order. All of the
> pricing and driver commissions are based on the total $'s charged from the
> Orders table. So I need to update the orders table with the correct driver
> information, but only if the driver is the same. Little round about I know.
>
>
> "Adam Machanic" wrote:
> > Again, the COUNT(*) should do exactly what you need here... can you tell me
> > why this won't work for you:
> >
> >
> > if (select COUNT(*) from cartons where orderid = @.orderid) = 1
> > BEGIN
> > Update orders set oDriver = (select distinct c_driver from cartons
> > where orderid = @.orderid)
> > END
> > ELSE
> > BEGIN
> > -- do something else...
> > END
> >
> >
> > ... Given that, however, I should ask why you're updating your orders table
> > with the driver from the cartons table? Why denormalize your data like
> > that?
> >
> >
> > --
> > Adam Machanic
> > SQL Server MVP
> > http://www.sqljunkies.com/weblog/amachanic
> > --
> >
> >
> > "John Shepherd" <JohnShepherd@.discussions.microsoft.com> wrote in message
> > news:41549C5D-63AA-46DA-92F4-A148A87D1143@.microsoft.com...
> > > I tried the count() but I don't get what I need
> > >
> > > what I need to do is determin is if a single driver is assigned to
> > multiple
> > > cartons within an order. for Instance say driver #1 was assigned to Carton
> > > 100 and driver #24 was assigned to Carton 101 and carton 102. All 3 of
> > these
> > > cartons are in Order #1000
> > >
> > > Order# Carton# Driver#
> > > 1000 100 1
> > > 1000 101 24
> > > 1000 102 24
> > >
> > > What I need to get to is this without the select (becuase doing it this
> > way
> > > returns an error in my vb.net application because the select wants to
> > return
> > > rows)
> > >
> > > select c_driver from Cartons where orderid = @.orderid
> > > if @.@.RowCount = 1
> > > --Only one driver exists for this order
> > > Update orders set oDriver = (select distinct c_driver from cartons
> > > where orderid = @.orderid)
> > >
> > > if @.@.RowCount > 1
> > > -- Multiple Driver exists for this Order
> > >
> > >
> > > "Adam Machanic" wrote:
> > >
> > > > What are you querying @.@.ROWCOUNT for? @.@.ROWCOUNT returns the rowcount
> > of
> > > > the last operation... I have a feeling you really want:
> > > >
> > > > if (select COUNT(*) from cartons where orderid = @.orderid) = 1
> > > > update ...
> > > >
> > > >
> > > >
> > > > --
> > > > Adam Machanic
> > > > SQL Server MVP
> > > > http://www.sqljunkies.com/weblog/amachanic
> > > > --
> > > >
> > > >
> > > > "John Shepherd" <JohnShepherd@.discussions.microsoft.com> wrote in
> > message
> > > > news:7A9F67DA-3C32-445F-B9AD-8A69F4855292@.microsoft.com...
> > > > > I am writing a vb.net application that calls a stored procedure and
> > need
> > > > some
> > > > > help.
> > > > >
> > > > > I am writting the procedure to check if multiple records exists and
> > the
> > > > only
> > > > > way I can figure it out is to use @.@.RowCount, but can't get the right
> > > > result,
> > > > > please help.
> > > > >
> > > > > What I have now is
> > > > >
> > > > > if exists(select c_driver from cartons where orderid = @.orderid and
> > > > > @.@.Rowcount = 1)
> > > > > update...
> > > > >
> > > > >
> > > > > I tried using the following but got an error in my vb application
> > becuase
> > > > > the Procedure was returning rows
> > > > >
> > > > > select c_driver from cartons where orderid = @.orderid
> > > > > if @.@.Rowcount = 1
> > > > > update...
> > > > >
> > > > > Is there any way to use the above query without returning rows to VB?
> > > > >
> > > > > Is there a way to write an exists to query @.@.Rowcount?
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > >
> >
> >
> >|||Why don't you try COUNT(DISTINCT c_driver) ?
Rather than storing the data in two places (which has data integrity
implications), have you considered creating a view that will return the data
in the way you need it for reporting?
Adam Machanic
SQL Server MVP
http://www.sqljunkies.com/weblog/amachanic
--
"John Shepherd" <JohnShepherd@.discussions.microsoft.com> wrote in message
news:871ECA2C-4846-4442-83FE-53C1657A3159@.microsoft.com...
> The problem with count() is that for my example would return 3 rows, I can
> only update when all cartons in the orders have the same driver#.
> I left out the DISTINCT in my example it should be:
> select DISTINCT c_driver from Cartons where orderid = @.orderid
> If all drivers are the same for the cartons in the Order I should have 1
> row, if there a seperate drivers I should have more than 1 row
> The way the db is set up is to have one row for an order in the Orders
> Table, ? Rows in Cartons table joined together on Orders.orderid => Cartons.Orderid based on the #of cartons shipped with the order. All of
the
> pricing and driver commissions are based on the total $'s charged from the
> Orders table. So I need to update the orders table with the correct driver
> information, but only if the driver is the same. Little round about I
know.
>

Sunday, February 19, 2012

Help required in ASP.NET code

I am writting a very simple ASP.NET code, I am simlply trying toestablish a connection with the database in SQL Server 2000 and thanclosing the connection but still I am getting an exception,the name ofthe database is mydatabase, SQL Server 2000 is running in the windowsauthenticationfiltered=SSPI. The name of SQL Server 2000 runningonfiltered=xyz,
I checked the name from SQL Server Service Manager.Also I would like tostate here that I also tryed to establish a connection using C# and theconnection was successfully establish which means that there is noproblem with SQL Server also I sucessfully established the connectionwith MS Access and my ASP.NET application which proves that there is noproblem with IIS also.Also please check that the connection stringwhich I am providing is correct or not.The exception which I am gettingis as follows:
////////////

///////////////////////////////////////////////////////////////////
An exception occured while establishing connection
Login failed for user 'xyz\ASPNET'.
////////////////////////////////////////////////////////////////////////////
Please also note that I have a user with the name xyz/Administrator inthe logins of Sql Server 2000. Also note one more thing that the nameof my PC is xyz, I think that there is some problem with the connectionstring which i am providing so please especially check the connectionstring that either I have missed some thing or some thing has gonewrong,also please tell that are there any security restructions forASP.NET to access SQL Server 2000 or some thing like that which I haveto remove.The code is as follows:
//////////////////////////////////////////////////////////////////////////////////////
<%@. Page Language="C#" %>
<%@. Import Namespace="System.Data" %>
<%@. Import Namespace="System.Data.SqlClient" %>
void Page_Load(Object sender , EventArgs e)
{
try
{
SqlConfiltered=new SqlConnection("server=xyz;Integrated Security=SSPI;database=mydatabase;");
connection.Open();
Response.Write("Connection is successfully established");
connection.Close();
}
catch(Exception ex)
{
Response.Write("An exception occured while establishing connection "+" "+ex.Message.ToString());
}
}
</Script
The same above code is also present in the attachement file data.aspx ,please guide me where I am making mistake and please tell me that howcan I correct this mistake so that the code executes correctly.Alsoplease tell that what things should be included in the connectionstring and also please check the connection string of this code.

Connection string is fine if you intend to use Windows Authentication against SQl Server. User xyz/Administrator being in the logins has nothing to do with the error since you probably use that when connecting to SQL Server while working with Enterprise Manager interactively (e.g you use EM)

You have specified in connection string (Integrated Security=SSPI) that the Windows Identity ASP.NET runs under will also be used to log in to the given SQL Server instance. Your ASP.NEt application runs under "'xyz\ASPNET" identity which the error message

An exception occured while establishing connection
Login failed for user 'xyz\ASPNET'.

tries to indicate. Therefore this user should have its own login created to the SQL Server and again granted access to themydatabasedatabase given in the connection string.

What you need to do is to give this user the login and adequate permissions to the SQL Server instance by using SQL Server's management tools (Enterprise Manager)

Monday, March 12, 2012

Help with @@Rowcount

Help with @@Rowcount

Help with @@Rowcount

Sunday, February 19, 2012

Help required in ASP.NET code

Restore Database

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