Help!!! First Timer With SQL
Dec 8, 2003
I am trying to write my first app using SQL Server. I am not able to even open a connection. I get the following error message:
Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.
I am not sure first of all why the user is listed as null. I hard coded a user name in for test purposes. Second, how DO I establish a trusted connection with a SQL Server. The SQL Server is located on an internal domain controller.
Also, is it necessary to have anything special installed on my remote machine? As I said, I am VERY new to Microsoft SQL Server
View 3 Replies
ADVERTISEMENT
Sep 17, 2007
I'm not sure this is the place for this question, but not sure where else to go. I've written asp.net code to read from a sql server 2005 db and send out customized emails based on user info.Currently the process gets rolling by clicking a button in a web page.The client doesn't want to click a button, they want to run the email sender on a timer.How can I set up my function to run on a timer either in asp.net or more likely called from sql server?
View 6 Replies
View Related
Jul 20, 2005
HI,I need to run same kind of transactions (basically deleting records)in a loop but I have only 1 hour in a day to run my procedure. So Ineed to set a timer in a SP so that SP terminates after one hour andthen rest of the transactions will be done next day.Can anybody suggest as how to check execution time in a storedprocedure? The execution of the SP will be scheduled every night.If u need any further info pls ask.Thanks,Subodh
View 2 Replies
View Related
Jun 6, 2007
Hi,
Im trying to build a solution that Selects a couple of rows, checks their timestamp and sends them as a file with FTP if they´re up to date.
However, those old rows that haven´t been updated yet I need to check every hour to see if the they have been updated and send them with FTP when thei´re up to date.
Is is possable to solve this by using SSIS?
Many thanks.
View 1 Replies
View Related
Apr 27, 2006
I'm using conversation timers successfully to fire events at a predetermined time in the future, but I'm running into issues when using an interval of considerable size. I set the conversation timeout like so:
set @Timeout = DATEDIFF(SECOND, GETDATE(), DATEADD(MINUTE, -(@TimeOffset), @FollowUpDateTime));
if (@Timeout < 0)
set @Timeout = 1;
// begin dialog
begin conversation timer (@FollowUpConversation)
timeout = @Timeout;
In this case @Timeout was 94693494.
In the SQL error log I see the following error: "Invalid subcommand value 94693494. Legal range from 1 to 2147483."
I thought I may check the @Timeout value and simply set it to 2147483 if it is larger than 2147483, but I was wondering if there was a reason the upper limit was so small.
Thanks,
Chris
View 10 Replies
View Related
Apr 24, 2006
I'd like to add code to a trigger to calculate the time to fire a message into a queue based on a field changing, and conversation timers seem like the way to go. My first question refers to this line from the BOL:
"Calling BEGIN CONVERSATION TIMER on a conversation before the timer has expired sets the timeout to the new value."
I think that in this trigger, I can simply begin a new conversation if the given field has changed to reset the timer. But intuition tells me that in order to change the timer to a new value, I need to retrieve the existing conversation, correct?
Also, I've read that conversation timers are persistent in that they survive database restarts and shutdowns. But I'm not sure to what extent. After a database restart/shutdown, does the conversation timer "reset" itself to the time interval specified when the conversation was begun or is it able to account for the time the database was down/offline?
Thanks,
Chris
View 5 Replies
View Related
Nov 17, 2006
I need to follow up on a message and check on its status. I am planning on using Conversation Timers (self addressed). I've tried it and they do work well. I am wondering if the LIFETIME parameter can be used for the same purpose. If the dialog has not been closed and the LIFETIME expires, will a message be queued into the service's queue? It does not seem that this is the case, but it is worth checking, as it could be a much desired feature.
Thanks,
View 5 Replies
View Related
Apr 13, 2007
If I call ExecuteNonQuery() in a timer event callback in a console application, it hangs. Why is that?
.B ekiM
class Program
{
static SqlConnection conn = new SqlConnection("Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=NONEOFYOURBISUINESS;Data Source=localhost");
static void Main(string[] args)
{
NativeMethods.MEMORYSTATUSEX mem = new NativeMethods.MEMORYSTATUSEX();
NativeMethods.GlobalMemoryStatusEx(mem);
Console.WriteLine("{0} bytes", mem.ullAvailPhys);
System.Timers.Timer aTimer = new System.Timers.Timer();
// Set the Interval to 2 seconds (2000 milliseconds).
aTimer.Interval = 1000;
aTimer.Enabled = true;
// Hook up the Elapsed event for the timer.
aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
Console.ReadLine();
}
private static void OnTimedEvent(object source, ElapsedEventArgs e)
{
NativeMethods.MEMORYSTATUSEX mem = new NativeMethods.MEMORYSTATUSEX();
NativeMethods.GlobalMemoryStatusEx(mem);
SqlCommand cmd = new SqlCommand(
"INSERT INTO Observation (StatisticType, StatisticObserved, StatisticValue) VALUES (1, @When, @AvailPhys);" +
"INSERT INTO Observation (StatisticType, StatisticObserved, StatisticValue) VALUES (2, @When, @AvailPageFile);" +
"INSERT INTO Observation (StatisticType, StatisticObserved, StatisticValue) VALUES (3, @When, @AvailVirtual);" +
"INSERT INTO Observation (StatisticType, StatisticObserved, StatisticValue) VALUES (4, @When, @AvailExtendedVirtual);");
DateTime dt = DateTime.Now;
cmd.Parameters.AddWithValue("AvailPhys", mem.ullAvailPhys);
cmd.Parameters.AddWithValue("AvailPageFile", mem.ullAvailPageFile);
cmd.Parameters.AddWithValue("AvailVirtual", mem.ullAvailVirtual);
cmd.Parameters.AddWithValue("AvailExtendedVirtual", mem.ullAvailExtendedVirtual);
cmd.Parameters.AddWithValue("When", dt);
cmd.ExecuteNonQuery();
Console.WriteLine("Inserted {0}", dt);
}
}
View 3 Replies
View Related
Apr 30, 2007
Hi,
I am using conversation Timer for delaying a message for a few seconds but I can see the message immediately in the queue.
Here is the code i am using. This is a part of a stored procedure I have used.
BEGIN CONVERSATION TIMER ( @h ) TIMEOUT = @DelayBySeconds;
SEND ON CONVERSATION @h
MESSAGE TYPE [sendmsg]
(@msg);
I am executing this stored procedure with following statements.
exec set_ssb_msg 'test3', 25;
exec set_ssb_msg 'test1', 1;
select * from q1
I was hoping to see just the 'Test1' and see test3 after 25 seconds. But I could see both the messages in a queue as soon as i run the stored proc.
If I execute a receive command on the queue, I am receiving 'test3' first and then 'test1'. This is exactly opposit of what i expected.
Can you please let me know if I am doing anything wrong or missing a step.
Any help is greatly appreciated.
Thanks,
Don.
View 1 Replies
View Related
Aug 14, 2007
New to service broker, and my books haven't come in yet. I'm trying to figure out how Internal Activation works.
The following code seems to "work", in terms of the inline code, but it doesn't seem to be going through the activation PROCs. Is there something else I need to set or do?
TIA, Bob
USE master;
GO
-- Ensure Service Broker functionality is enabled.
ALTER DATABASE ICEBOX SET ENABLE_BROKER;
GO
USE ICEBOX;
GO
-- Drop all sample objects if present.
IF EXISTS (SELECT * FROM sys.services WHERE name = N'BobsReceiveService') DROP SERVICE BobsReceiveService;
IF EXISTS (SELECT * FROM sys.service_queues WHERE name = N'BobsReceiveQueue') DROP QUEUE BobsReceiveQueue;
IF EXISTS (SELECT * FROM sys.services WHERE name = N'BobsSendService') DROP SERVICE BobsSendService;
IF EXISTS (SELECT * FROM sys.service_queues WHERE name = N'BobsSendQueue') DROP QUEUE BobsSendQueue;
IF EXISTS (SELECT * FROM sys.service_contracts WHERE name = N'BobsContract') DROP CONTRACT BobsContract;
IF EXISTS (SELECT * FROM sys.service_message_types WHERE name = N'BobsSendMessageType') DROP MESSAGE TYPE BobsSendMessageType;
IF EXISTS (SELECT * FROM sys.service_message_types WHERE name = N'BobsReceiveMessageType') DROP MESSAGE TYPE BobsReceiveMessageType;
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.ROUTINES WHERE ROUTINE_TYPE='PROCEDURE' AND ROUTINE_NAME = 'USP_BobsReceiveQueueMonitor') DROP PROCEDURE dbo.USP_BobsReceiveQueueMonitor;
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.ROUTINES WHERE ROUTINE_TYPE='PROCEDURE' AND ROUTINE_NAME = 'USP_BobsSendQueueMonitor') DROP PROCEDURE dbo.USP_BobsSendQueueMonitor;
GO
CREATE PROCEDURE dbo.USP_BobsSendQueueMonitor
AS
DECLARE @QueueTable TABLE
(status tinyint --Status of the message. For messages returned by the RECEIVE command, the status is always 1. Messages in the queue may contain one of the following values: 0=Received message1=Ready2=Not yet complete3=Retained sent message
,queuing_order bigint --Message order number within the queue.
,conversation_group_id uniqueidentifier --Identifier for the conversation group that this message belongs to.
,conversation_handle uniqueidentifier --Handle for the conversation that this message is part of.
,message_sequence_number bigint --Sequence number of the message within the conversation.
,service_name nvarchar(512) --Name of the service that the conversation is to.
,service_id int --SQL Server object identifier of the service that the conversation is to.
,service_contract_name nvarchar(256) --Name of the contract that the conversation follows.
,service_contract_id int --SQL Server object identifier of the contract that the conversation follows.
,message_type_name nvarchar(256) --Name of the message type that describes the message.
,message_type_id int --SQL Server object identifier of the message type that describes the message.
,validation nchar(2) --Validation used for the message. E=Empty N=None X=XML
,message_body varbinary(MAX) --Content of the message.
,message_id uniqueidentifier --Unique identifier for the message.
);
-- FROM BoL
-- The WHERE clause of the RECEIVE statement may only contain search conditions that use conversation_handle or conversation_group_id.
-- The search condition may not contain any of the other columns in the queue.
-- The conversation_handle or conversation_group_id may not be an expression.
DECLARE @SendDialog_Handle uniqueidentifier;
DECLARE @SendMsg varbinary(MAX);
DECLARE @SendMsgName nvarchar(256);
BEGIN
PRINT 'SEND' + CONVERT(VARCHAR,GETDATE(),109);
SELECT TOP (1)
@SendDialog_Handle = conversation_handle
,@SendMsg = message_body
,@SendMsgName = message_type_name
FROM
BobsSendQueue;
SELECT 'SEND',@SendDialog_Handle AS conversation_handle,CAST(@SendMsg AS VARCHAR(MAX)) AS message_body,@SendMsgName AS message_type_name;
END;
GO
CREATE PROCEDURE dbo.USP_BobsReceiveQueueMonitor
AS
DECLARE @QueueTable TABLE
(status tinyint --Status of the message. For messages returned by the RECEIVE command, the status is always 1. Messages in the queue may contain one of the following values: 0=Received message1=Ready2=Not yet complete3=Retained sent message
,queuing_order bigint --Message order number within the queue.
,conversation_group_id uniqueidentifier --Identifier for the conversation group that this message belongs to.
,conversation_handle uniqueidentifier --Handle for the conversation that this message is part of.
,message_sequence_number bigint --Sequence number of the message within the conversation.
,service_name nvarchar(512) --Name of the service that the conversation is to.
,service_id int --SQL Server object identifier of the service that the conversation is to.
,service_contract_name nvarchar(256) --Name of the contract that the conversation follows.
,service_contract_id int --SQL Server object identifier of the contract that the conversation follows.
,message_type_name nvarchar(256) --Name of the message type that describes the message.
,message_type_id int --SQL Server object identifier of the message type that describes the message.
,validation nchar(2) --Validation used for the message. E=Empty N=None X=XML
,message_body varbinary(MAX) --Content of the message.
,message_id uniqueidentifier --Unique identifier for the message.
);
-- FROM BoL
-- The WHERE clause of the RECEIVE statement may only contain search conditions that use conversation_handle or conversation_group_id.
-- The search condition may not contain any of the other columns in the queue.
-- The conversation_handle or conversation_group_id may not be an expression.
DECLARE @ReceiveDialog_Handle uniqueidentifier;
DECLARE @ReceiveMsg varbinary(MAX);
DECLARE @ReceiveMsgName nvarchar(256);
BEGIN
PRINT 'RECEIVE' + CONVERT(VARCHAR,GETDATE(),109);
SELECT TOP (1)
@ReceiveDialog_Handle = conversation_handle
,@ReceiveMsg = message_body
,@ReceiveMsgName = message_type_name
FROM
BobsReceiveQueue;
SELECT 'RECEIVE',@ReceiveDialog_Handle AS conversation_handle,CAST(@ReceiveMsg AS VARCHAR(MAX)) AS message_body,@ReceiveMsgName AS message_type_name;
END;
GO
CREATE MESSAGE TYPE BobsSendMessageType VALIDATION = NONE;
CREATE MESSAGE TYPE BobsReceiveMessageType VALIDATION = NONE;
CREATE CONTRACT BobsContract
(BobsSendMessageType SENT BY INITIATOR
,BobsReceiveMessageType SENT BY TARGET
);
CREATE QUEUE BobsSendQueue
WITH ACTIVATION
(STATUS = ON
,PROCEDURE_NAME = dbo.USP_BobsSendQueueMonitor
,MAX_QUEUE_READERS = 1
,EXECUTE AS OWNER
)
;
CREATE SERVICE BobsSendService ON QUEUE BobsSendQueue;
CREATE QUEUE BobsReceiveQueue
WITH ACTIVATION
(STATUS = ON
,PROCEDURE_NAME = dbo.USP_BobsReceiveQueueMonitor
,MAX_QUEUE_READERS = 1
,EXECUTE AS OWNER
)
;
CREATE SERVICE BobsReceiveService ON QUEUE BobsReceiveQueue (BobsContract);
GO
DECLARE @BobsDialog_Handle UNIQUEIDENTIFIER;
DECLARE @SendMsg NVARCHAR(100);
SET @SendMsg = N'Hello Bob';
BEGIN TRANSACTION;
BEGIN DIALOG CONVERSATION @BobsDialog_Handle FROM SERVICE BobsSendService TO SERVICE N'BobsReceiveService' ON CONTRACT BobsContract WITH ENCRYPTION = OFF;
SEND ON CONVERSATION @BobsDialog_Handle MESSAGE TYPE BobsSendMessageType (@SendMsg);
COMMIT TRANSACTION;
SELECT 'Conversation started on Handle ' + CAST(@BobsDialog_Handle AS VARCHAR(36));
GO
DECLARE @BobsDialog_Handle UNIQUEIDENTIFIER;
DECLARE @ReceiveMsg NVARCHAR(100);
DECLARE @ResponseMsg NVARCHAR(100);
DECLARE @ReceiveMsgName SYSNAME;
SET @ResponseMsg = N'Back at ya';
BEGIN TRANSACTION;
RECEIVE TOP(1)
@BobsDialog_Handle = conversation_handle
,@ReceiveMsg = message_body
,@ReceiveMsgName = message_type_name
FROM
BobsReceiveQueue;
COMMIT TRANSACTION;
SELECT @ReceiveMsgName AS ReceiveMsgName,@ReceiveMsg AS ReceiveMsg;
SEND ON CONVERSATION @BobsDialog_Handle MESSAGE TYPE BobsReceiveMessageType (@ResponseMsg);
END CONVERSATION @BobsDialog_Handle;
GO
DECLARE @ResponseMsg NVARCHAR(100);
DECLARE @ResponseMsgName SYSNAME;
DECLARE @BobsDialog_Handle UNIQUEIDENTIFIER;
BEGIN TRANSACTION;
RECEIVE TOP(1)
@BobsDialog_Handle = conversation_handle
,@ResponseMsg = message_body
,@ResponseMsgName = message_type_name
FROM BobsSendQueue;
END CONVERSATION @BobsDialog_Handle;
COMMIT TRANSACTION;
SELECT @ResponseMsgName AS ResponseMsgName, @ResponseMsg AS ResponseMsg;
GO
IF EXISTS (SELECT * FROM sys.services WHERE name = N'BobsReceiveService') DROP SERVICE BobsReceiveService;
IF EXISTS (SELECT * FROM sys.service_queues WHERE name = N'BobsReceiveQueue') DROP QUEUE BobsReceiveQueue;
IF EXISTS (SELECT * FROM sys.services WHERE name = N'BobsSendService') DROP SERVICE BobsSendService;
IF EXISTS (SELECT * FROM sys.service_queues WHERE name = N'BobsSendQueue') DROP QUEUE BobsSendQueue;
IF EXISTS (SELECT * FROM sys.service_contracts WHERE name = N'BobsContract') DROP CONTRACT BobsContract;
IF EXISTS (SELECT * FROM sys.service_message_types WHERE name = N'BobsSendMessageType') DROP MESSAGE TYPE BobsSendMessageType;
IF EXISTS (SELECT * FROM sys.service_message_types WHERE name = N'BobsReceiveMessageType') DROP MESSAGE TYPE BobsReceiveMessageType;
GO
View 3 Replies
View Related
Feb 7, 2007
Hi Remus,
I just started looking into SB about a week ago, so my question is likely to be pretty lame. However, that's not going to stop me from asking it :-)
We're trying to do something similar to what you're describing here. How do you "reset" a dialog timer? Why would you need to deal with resetting timers (or with timers at all for that matter) in the event of a success? Couldn't you rewrite the logic to be as follows?
begin transaction
receive message
if message is web request
save state of request (http address, caller etc)
else if message is retry timer message
load state of request
endif
commit
do the web request (no transaction open)
if success
begin transaction
send back response
end conversation
commit
else
set a retry timer on the dialog (say 1 minute) using BEGIN DIALOG TIMER
endif
Also, when you set the retry timer you have to associate it with the saved request state, right? Otherwise, how will the service know which request to load on receipt of the timer message?
TIA.
View 6 Replies
View Related
Oct 25, 2006
I want to test some times it takes for a proc to run. Since I work for a large company, I rarely have access to the SQL server in a capacity where I can use profiler and such. Are there any quick and easy ways to just surround blocks of code in a T-SQL statement to get an accurate reading on how long it takes?I.e., if I surround with GETDATE() before and after, does that also measure the round trips to the server, or just the execution time.I want to just compare some different methods and see what is quicker. THX.
View 4 Replies
View Related
Dec 3, 2006
I need to check the databes on the server side every 3 days and delete old data.
I am using SQL Express.
View 5 Replies
View Related
May 21, 2008
I have an application that automatically reads a lot of data from a third-party application into my database, via XML. For example, I might read a couple thousand rows-worth of XML data, one row at a time in a foreach loop.
To reduce the load on their server and database, I thought about putting a 2 second delay in between each of my automatic requests. Would this really help much, or is there enough overhead (setting up/tearing down connections, etc) with each request that it wouldn't reduce server load much anyway?
Is 2 seconds enough? Too little or too much?
View 3 Replies
View Related
Mar 8, 2007
Hello,
I'm using SQL service Broker 2005 with ASP.NET 2.0 in order to use the sql cache dependency.
everything works fine...
I have only a doubt regarding a query that is constantly executed on mu db ( i can see it be means of the SQL Profiler)
The query is:
exec sp_executesql N'BEGIN CONVERSATION TIMER ("'') TIMEOUT = 120; WAITFOR(RECEIVE TOP (1) message_type_name, conversation_handle,
cast(message_body AS XML) as message_body from [SqlQueryNotificationService-GUID]), TIMEOUT @p2;',N'@p2 int',@p2=60000
The web application is not running from a browser ...
It this ok or I forget to clean/reset something from my web application and/or sql server?
Thank you
Marina B.
View 3 Replies
View Related
