If my application updates a SQL Express database at the same time as my service is performing synchronisation of the same database via RMO, intermittently some of the rows updated will not be included the next time synchronisation is performed.
Does anyone know what's happening and what I can do about it?
Hello,
Can anyone guide me. which is the best method for real time synchronisation of my production server. Is it Transactional Replication or Stand By Server?
Thanks In Advance
Sejal
HiI have have two linked SQL Servers and I am trying to get remote writesworking correctly (fast).I have configured the DB link on both machines to:Point at each others DB.I have security set up to map each others server loginsand Server Options: Collation Compatible, Data Access, RPC, RPC Out, UseRemote Collation all checkedMy problem is that when a SP performsBegin TransactionUpdate Local TableUpdate Remote TableCommit TranIt takes several seconds to complete. (about 7 seconds not acceptable tous)This is due to the remote update - how can I improve the response time?example of a stored procedures that takes timewhere ACSMSM is a remote (linked) SQL Server.procedure [psm].ams_Update_VFE@strResult varchar(8) = 'Failure' output,@strErrorDesc varchar(512) = 'SP Not Executed' output,@strVFEID varchar(16),@strDescription varchar(64),@strVFEVirtualRoot varchar(255),@strVFEPhysicalRoot varchar(255),@strAuditPath varchar(255),@strDefaultBranding varchar(16),@strIPAddress varchar(23)asdeclare @strStep varchar(32)declare @trancount intSet XACT_ABORT ONset @trancount = @@trancountset @strStep = 'Start of Stored Proc'if (@trancount = 0)BEGIN TRANSACTION mytranelsesave tran mytran/* start insert sp code here */set @strStep = 'Write VFE to MSM'updateACSMSM.msmprim.msm.VFECONFIGsetDESCRIPTION = @strDescription,VFEVIRTUALROOT = @strVFEVirtualRoot,VFEPHYSICALROOT = @strVFEPhysicalRoot,AUDITPATH = @strAuditPath,DEFAULTBRANDING = @strDefaultBranding,IPADDRESS = @strIPAddresswhereVFEID = @strVFEID;set @strStep = 'Write VFE to PSM'updateACSPSM.psmprim.psm.VFECONFIGsetDESCRIPTION = @strDescription,VFEVIRTUALROOT = @strVFEVirtualRoot,VFEPHYSICALROOT = @strVFEPhysicalRoot,AUDITPATH = @strAuditPath,DEFAULTBRANDING = @strDefaultBranding,IPADDRESS = @strIPAddresswhereVFEID = @strVFEID/* end insert sp code here */if (@@error <> 0)beginrollback tran mytranset @strResult = 'Failure'set @strErrorDesc = 'Fail @ Step :' + @strStep + ' Error : ' + @@Errorreturn -1969endelsebeginset @strResult = 'Success'set @strErrorDesc = ''end-- commit tran if we started itif (@trancount = 0)commit tranreturn 0
View 2 Replies View RelatedI have this scenario which is working fine, but would like to know if others have tried it or can recommend a better approach. Below is a brief description, but code should fully explain:
A process updates a SQL Server table via a stored proc, which in turn writes information to a service broker target queue. In my client/server architecture, I would like clients to see this new information as soon as it gets written to the target queue. To do this, I have a WCF service that calls a stored procedure; the stored proc contains an infinite loop which has a RECEIVE statement with an infinite timeout. Once RECEIVE reads data from the SB queue, data is retrieved via a SqlDataReader and results are sent to clients via a pub/sub. I then wait for more rows until RECEIVE unblocks and so on.
Stroed Proc
Code Snippet
-- ...
WHILE 1 = 1
BEGIN
-- Param declarations
...
BEGIN TRANSACTION;
WAITFOR
(
-- Blocks while TargetQueue is empty
RECEIVE
TOP(1)
@conversation_handle = conversation_handle,
@message_type_name = message_type_name,
@conversation_group_id = conversation_group_id,
@message_body =
CASE
WHEN validation = 'X' THEN CAST(message_body AS XML)
ELSE CAST(N'' AS XML)
END
FROM [dbo].[TargetQueue] -- No time out!
)
-- Handle errors
...
-- Return received information. After this statement is executed,
-- reader.NextResult unblocks and reader.Read() can read these
-- new values
SELECT 'Conversation Group Id' = @conversation_group_id,
'Conversation Handle' = @conversation_handle,
'Message Type Name' = @message_type_name,
'Message Body' = @message_body ;
COMMIT TRANSACTION
END -- WHILE
C# Code
Code Snippet
// Create a SqlCommand, and initialize to execute above stored proc
// (set command time to zero!)
...
// ExecuteReader blocks until RECEIVE reads data from the target queue
using (SqlDataReader reader = cmd.ExecuteReader())
{
// Begin an infinite loop
while (true)
{
// Process data retrieved by RECEIVE
while (reader.Read())
{
Trace.WriteLine("Conversation Group Id :" + reader.GetGuid(0) +
"Conversation Handle: " + reader.GetGuid(1) +
"Message Type Name : " + reader.GetString(2) +
"Message Body : " + reader.GetString(3));
// Send data via pub/sub
...
}
// Blocks until stored procedure returns another select statement
// i.e., blobks until RECEIVE unblocks and retrieves more data from queue
reader.NextResult();
} // while
}
I am trying to create a ROLAP cube with 'Enable real-time updates' .
When I go to process the cube it fails stating, Creating indexes for Aggregation XXXX
CANNOT enable real time updates on this partition without indexed views: <date>
Im running SQL Sever 2000 Developer Edition - SP4 on Windows Server 2003
My cube don't use DCount measures ,only simple calculation
(sum, count)
Can anyone help me debug this? Is there any way to get a more descriptive
error from Analysis Services?
Thank you
Hi
We have merge replication - anonymous internet subscribers
With SQL Express as the subscriber database, how do we periodically run the merge agent - without SQLAgent we can't schedule the job...
Obviously with MSDE it was no problem
thanks
Bruce
I am trying to understand an environment and provide a solution to Banking system so that they can enter user data (transactions) online and at the same time we can provide users online reporting as well. Using same sql server or server/hardware on other machine.
There are so many branches/customers/ATM machines accessing online data as well as updating their balances. I want to understand how can we provide online reporting. Through replication, transaction log backup, log shipping or what other solution is available. I need to understand this and provide a solution that is already implemented running/successfully. Need some proposals and their pros and cons. cost and maintenance are the constraints with the real time reporting on live system/database.
View 8 Replies View Related
I am new to this type of programming and and have read all articles on adding an image to the database and it seems they all use sql queries to add an image but I want to add an image at design time. I am using Visual Basic 2005. I am also using Visual Basic 2005 Express Edition to try the same thing. I am trying to build a Translator program for english to Brazilian Portuguese and the reason I want to add the images is so that when I translate the word cat from english to Portuguese, I can also show an image of a cat. Can anyone please help me
View 3 Replies View RelatedHi
I have been giving myself a headache over deploying and synchronising sql databases.
Can anybody point me in the right direction of a tool that can help me to synchronise changes of structure / data between two databases. I have used the demo version of SQL compare, but I think its way too expensive. Does Microsoft produce a tool that can perform similar functions? If not can anybody point mew in the way of a tutorial that can help me with migration / deployment / synchronisations of SAL Databases.
Many thanks
Hi
For our application we want two Publisher models:
1) running SQL Server 2005 standard on Windows Server 2003
2) running SQL Server 2005 standard (or workgroup) on Windows XP pro
The reaseon is simply cost. The first for clients that may have 10s / 100s of SQLce subscribers, the second for just 1-5 SQLce subscribers.
We want to use Web syncronisation. Problem is when setting up on the XP box I get to the final bits of Microsoft's setup document and it starts to tell you to set up an application pool. As far as I can tell this is only available on IIS6 on Windows Server 2003.
Searching the Internet I don't seem to be able to find a definative 'don't be a pratt' you can't run Web Synchronisation from a XP pro box.
Could someone let me know if it is or is not possible. If I could get SQL Express to be a publisher (to SQLce subscribers) I would have prefered not to have the cost of a full verision of SQL Server for our smaller clients.
Many thanks in advance
Alistair
hi every body please help me out on this issue , since i am at final stage in finishing up the module.
Previously i had done web synchronisation using RMO it is working fine at my office where i have an 2003 server which is an domain controller , publisher i have configured on the 2003 server , and i had subscribers on xp Machines where it was well working fine, clients were not on the domain , it is an independent Machine. we had an security error which was resolve by this same forum, ie the client windows login id should exists on the server too. only then synchronisation is happening at our office,
Now the problem is i have an same setup , but the server 2003 is hosted at a remote place , which is not an domain controller, now if i try to synchronise from our office i am getting "A Security Erorr Occured" , is it so that the publisher should be configured as an domain controller please any body resolve this issue
Thanks
iam able to open the web sync diagnostic information using URL https://itneersrv.abitta.com:443/Synchronise/replisapi.dll in the internet explorer but while running throuth the c# code to run Merge agent i am gettin the following error ,
[0%] InProgress The Merge Agent could not connect to the URL 'https://itneersrv.
abitta.com:443/Synchronise/replisapi.dll' during Web synchronization. Please ver
ify that the URL, Internet login credentials and proxy server settings are corre
ct and that the Web server is reachable.
A security error occurred
I am trying the synchronise through Internet where i have an publisher is at different country and subscriber at my office in India , i have given all privileges but then too i am getting same error , can any body help out on this..i have posted serveral times , few people responed but i could'nt resolve this issue
I have a project that consists of a SQL db with an Access front end as the user interface. Here is the structure of the table on which this question is based:
Code Block
create table #IncomeAndExpenseData (
recordID nvarchar(5)NOT NULL,
itemID int NOT NULL,
itemvalue decimal(18, 2) NULL,
monthitemvalue decimal(18, 2) NULL
)
The itemvalue field is where the user enters his/her numbers via Access. There is an IncomeAndExpenseCodes table as well which holds item information, including the itemID and entry unit of measure. Some itemIDs have an entry unit of measure of $/mo, while others are entered in terms of $/yr, others in %/yr.
For itemvalues of itemIDs with entry units of measure that are not $/mo a stored procedure performs calculations which converts them into numbers that has a unit of measure of $/mo and updates IncomeAndExpenseData putting these numbers in the monthitemvalue field. This stored procedure is written to only calculate values for monthitemvalue fields which are null in order to avoid recalculating every single row in the table.
If the user edits the itemvalue field there is a trigger on IncomeAndExpenseData which sets the monthitemvalue to null so the stored procedure recalculates the monthitemvalue for the changed rows. However, it appears this trigger is also setting monthitemvalue to null after the stored procedure updates the IncomeAndExpenseData table with the recalculated monthitemvalues, thus wiping out the answers.
How do I write a trigger that sets the monthitemvalue to null only when the user edits the itemvalue field, not when the stored procedure puts the recalculated monthitemvalue into the IncomeAndExpenseData table?
We have a central server, with offices from other country's synchronising with our main DB. Some are fine, but many for some reason keep getting the same error message time after time:-
"The process could not log conflict information"
You then go into the problem and it says it can not read the file of a particular table due to Error 53.
I have no idea what this means. If anyone can help, I'd be very appreciative!
Thanks in advance,
Greg
We have a fair number of databases in different countries and we synchronise with them everyday. Apart from all the problems we have, recently it has gone well. In HQ, we have local database and also 1 which the countries synch with. Therefore, the local database needs to synch with the synch database. That is successful every time. The only problem we have is that after synchronisation is complete, there are differences in data in the 2 databases and we don't understand why - after all, synchronisation is meant to keep the databases the same. If anyone has any ideas why this is happening, I would be very grateful if you could get back to me. Thanks.
View 3 Replies View RelatedHi Guys, my first post here for quite a while.
I have a question regarding replication and or database synchronisation:
I am doing some work on a SCADA control system in .Net - (SCADA=[S]upervision, [C]ontrol And [D]ata [A]quisition)
Obviously, these are mission critical systems that must have uptimes of greater 99%.
Tradiotionally, we have used custom written database in assembler or C, but these are getting rather long in the tooth, and, in my opinion, represent a massive man-time investment developing something that already exists 'off the shelf' (for example, our custom written database, the first version of which roled out nearly 20 years ago doesn't support SQL)
So, I'm looking to see if there is an off the shelf DB that can do what we need it to do. I lean towards Microsoft because of it's integration with the .Net platform.
However, probably the most important criteria for us is that of database synchronisation - as data from the plant arrives it is stored in a database (obviously) - however, at the SAME TIME, it is sent to a back up (standby) database which is identical in every respect, except it does not 'answer' queries, it only listens and keeps it's database up to date. Then, should the 'primary' database server fall over, the standby will become active, and it is up-to-date ready to run.
Does SQL server offer such a facility that changes to a database can be immediately and automatically 'echoed' to a standby database? Automatic promotion from standby to main is not an issue, as this decision would be taken by the application software 'in front' of the database - if it cannot contact the main DB server, it will elect to start talking to the standby, thus, philisophically (sp?) the standby is now the main server.
Hope I haven't confused anyone here with my rambling?
The problem is my hunch (not being a DB guru) is that replication is NOT what I am looking for - I *think* replication does sync data and schema (correct me if i'm wrong) but not immediately - it is scheduled? Yes?
I am looking more for synchronisation - but it has to be 'on the fly' - not every 15 minutes or 8 hours etc...
If SQL server cannot do it, then it's not a major problem, since the DB access layers of the applications themselves can simply write their data to two DB's, and queue writes in a buffer if one of the partners is offline, such that they will be written to the partner when it comes online - however, I'm all for an easy life, and if the boys at Microsoft have already settled this issue, then i'm all for that!
Your advice would be appreciated.
Regards
Mark Wills
Hi
I am using a sql server database for storing gps data from a remote location. The average data stored in the db is around 2 GB/day. For security reasons, my application is working on another server which has same db. I need to update data in the second database within an interval of 2 seconds. The user entry in the application server has to be synchronised with first server also. Is replication is possible in such a small interval?. Anybody have any suggestion?
Thanks in advance
Kuttan
We have a SQL Server 2005 database supporting our main ecommerce site. It is hosted remotely by our ISP. We currently maintain a local copy of this database by running daily stored procedures to keep the local copy up to date. However we'd like to explore the use of replication over HTTPS as an alternative means of keeping the local copy in sync with the ISP database.
Could anyone comment on the technical feasibility of doing this, given that transaction throughput on the ISP server can be several hundred hits per hour? Is web-based synchronisation likely to suffer from poor performance, or to adversely affect users of our ecommerce site?
Hi,I'm working with two databases on to physicaly separated servers: #1is on a local machine en I can only connect to #2 via an ADSLconnection.I need to syncrhonise the data. This works fine via the wizard fromthe Enterprise Manager. But I want to get this done via a script formthe Query Analyzer that I can run whenever I want to. Something like:insert into srv1.database.dbo.table1select * from srv2.database.dbo.table1When I do this I get an error about "linked servers". That surprisesme, because I have no linked servers configured and yet the wizardworks fine?Can anyone tell me how to accomplish this?tavJan Willems
View 1 Replies View Related hi,
i have done Web Synchronisation Using RMO , where i have an remote server at a remote place, where the Virtual Directory is Configured With SSL, for testing purpose if i access from the Client Computer entering http://72.17.246.214/SyncAbita/replisapi.dll?diag " in the address of IE giving an errormessage "Unable to Reach Remote Host", if i remove SSL on the Server , i am able to access "SQL Websync diagnostic information" Page from the Client Machine, is it not possible to get perform Web Synchronisation With SSL, then i have inStalled 7 days Trial Version SSL on the Sever. Can any body help me out on this Issue
How can i synchronise (wireless) data from desktop to ppc?
View 1 Replies View RelatedHi..
I hope this is the right forum for my question. I am very new in Databases. I have such a problem:
There is a Database on SQL-Server in a country X. This database has tables like
Table 1,Table 2 ,.....Table 10;
I develope an Application with Visual C#.NET 2.0. I use a local SQLExpress database, which has tables like
Table1,Table 2..Table 6,Table A,Table B.
As you see Table 1-Table 6 are same in both databases (not the whole database ). And these tables must always have the same information (Server database changes->local database must read the changes). Because of that there must be a Synchronisation between them.
How can I solve this Problem? Do I need to write code or is there any simple solution?
Thank you.
Hi
I am using a sql server database for storing gps data from a remote location. The average data stored in the db is around 2 GB/day. For security reasons, my application is working on another server which has same db. I need to update data in the second database within an interval of 2 seconds. The user entry in the application server has to be synchronised with first server also. Is replication is possible in such a small interval?. Anybody have any suggestion?
Thanks in advance
Kuttan
Im looking for some recommendations on tools I can use to keeo my dev/test/prod databases in synch. Im tired of doing this manually. I use SQLSever 99% of the time but if there is a tool that can manage other database also I would be interested in hearing about it also.
View 1 Replies View RelatedYes, I know synchronisation to alternate partners is deprecated in SQL2005 but....
In SQL2000 there is a Sync Partners tab in the publication properties dialog that allows you tick a checkbox for each co-publisher to be enabled as an alternate synchronisation partner. What is the equivalent in SQL2005?
I've set up replication in SQL2000 following these instructions http://support.microsoft.com/?kbid=321176 and it works. Now I'm trying to do the same thing in SQL2005 but I can't find a substitute for steps 10 & 11 in the section "Set Up the Alternate Synchronisation Partner". What's the answer?
Thanks in advance.
I am developing a application on PDA using c# compact framework. I would like to do synchornisation of sql mobile 2005 database with sql server 2005 database using web service.
The reason for going to webservice is based on the client request.
Will anybody help me on this, how to perform conflict management etc.
HI
We are using HTTPS anonymous merge subscriptions....
Sometimes when trying to synchonise, we will get the following error messages returned to the subscriber....
The upload message to be sent to Publisher '**thewebserver**' is being generated
The merge process is using Exchange ID '0F65CFCB-AF17-47DC-8D98-493A44C243E0' for this web synchronization session.
The Merge Agent could not connect to the URL 'https://**thewebserver**/client/replisapi.dll' during Web synchronization. Please verify that the URL, Internet login credentials and proxy server settings are correct and that the Web server is reachable.
The Merge Agent could not connect to the URL 'https://**thewebserver**/client/replisapi.dll' during Web synchronization. Please verify that the URL, Internet login credentials and proxy server settings are correct and that the Web server is reachable.
The Merge Agent received the following error status and message from the Internet Information Services (IIS) server during Web synchronization: [401 :'Unauthorized']. When troubleshooting, ensure that the Web synchronization settings for the subscription are correct, and increase the internet timeout setting at the Subscriber and the connection timeout at the Web server.
If I then go to a web brower, put in the HTTPS address, it brings up the logon dialog - I put in the admin username and password to confirm the connection and that's fine.
We try and synchronise again, and this time it works - it's as though I have 'woken' it up again and it's happy to play.
Is increasing the timeouts as suggested by the error message the way to go ? If so, where does one set the 'internet timeout setting at the subscriber', and the 'connection timeout at the webserver' ?
thanks
Hi,
I downloaded orcas and created an application which also has sql server synchronisation, now if i wish to run it on another m/c, where can i get the runtime for 3.5, I searched but could not find it.
Thanks
arnab
Hi
We have about 70 clients, each with their own databases synching to a copy of their database on a remote webserver. They synchronise using a Windows Service which we wrote using RMO.
For completeness, our setup is as follows:
subscription.CreateSyncAgentByDefault = False -- I wrote a windows service to synchronise
subscription.UseWebSynchronization = True
subscription.InternetSecurityMode = AuthenticationMethod.BasicAuthentication
subscription.SubscriberType = MergeSubscriberType.Anonymous
Sometimes, one of our clients synchronisation goes up the spout - it might take hours to synchronise - despite their internet connection being fine. And once this starts to happen, nothing will fix it. We've restarted their server, rebooted their router etc etc.
Well, the only way of fixing it is to recreate the publication, copy the backup, reinitialise and start again, which costs us a days work and inconveniences the client greatly.
What would be the likely trigger for this. How can we stop this happening again.
If it helps we could create a trace to help resolve this.....
Regards
Bruce
Hi...
I have data that i am getting through a dbf file. and i am dumping that data to a sql server... and then taking the data from the sql server after scrubing it i put it into the production database.. right my stored procedure handles a single plan only... but now there may be two or more plans together in the same sql server database which i need to scrub and then update that particular plan already exists or inserts if they dont...
this is my sproc...
ALTER PROCEDURE [dbo].[usp_Import_Plan]
@ClientId int,
@UserId int = NULL,
@HistoryId int,
@ShowStatus bit = 0-- Indicates whether status messages should be returned during the import.
AS
SET NOCOUNT ON
DECLARE
@Count int,
@Sproc varchar(50),
@Status varchar(200),
@TotalCount int
SET @Sproc = OBJECT_NAME(@@ProcId)
SET @Status = 'Updating plan information in Plan table.'
UPDATE
Statements..Plan
SET
PlanName = PlanName1,
Description = PlanName2
FROM
Statements..Plan cp
JOIN (
SELECT DISTINCT
PlanId,
PlanName1,
PlanName2
FROM
Census
) c
ON cp.CPlanId = c.PlanId
WHERE
cp.ClientId = @ClientId
AND
(
IsNull(cp.PlanName,'') <> IsNull(c.PlanName1,'')
OR
IsNull(cp.Description,'') <> IsNull(c.PlanName2,'')
)
SET @Count = @@ROWCOUNT
IF @Count > 0
BEGIN
SET @Status = 'Updated ' + Cast(@Count AS varchar(10)) + ' record(s) in ClientPlan.'
END
ELSE
BEGIN
SET @Status = 'No records were updated in Plan.'
END
SET @Status = 'Adding plan information to Plan table.'
INSERT INTO Statements..Plan (
ClientId,
ClientPlanId,
UserId,
PlanName,
Description
)
SELECT DISTINCT
@ClientId,
CPlanId,
@UserId,
PlanName1,
PlanName2
FROM
Census
WHERE
PlanId NOT IN (
SELECT DISTINCT
CPlanId
FROM
Statements..Plan
WHERE
ClientId = @ClientId
AND
ClientPlanId IS NOT NULL
)
SET @Count = @@ROWCOUNT
IF @Count > 0
BEGIN
SET @Status = 'Added ' + Cast(@Count AS varchar(10)) + ' record(s) to Plan.'
END
ELSE
BEGIN
SET @Status = 'No information was added Plan.'
END
SET NOCOUNT OFF
So how do i do multiple inserts and updates using this stored procedure...
Regards
Karen
Hi all,
I am in the position where I have to transfer data from an old database
schema to a new database schema. During the transfer process alot of
logic has to be performed so that the old data gets inserted into the
new tables and are efficiently done so that all foreign keys are
remained and newly created keys (as the new schema is Normalised alot
more) are correct.
Is it best if I perform all this logic in a Stored Procedure or in C# code (where the queries will also be run)?
Tryst
Hi All
I create a project in my school, I got a problem about connection time out, I used SQLHelper class and SQL 2005 Express Edition without service pack .
Here is my problem :
Thanks all for your help in advance.
Regards,
QuachNguyen