Hello,
I am having problems with my sql merge replication. Whenever a user syncs up to my main database, most of their records are deleted instead of being merged.
Or the records on the main database are inserted and it replaces the whole table with the records on the remote laptops. Is there a way to prevent this from happening? Someone please help me.
Corey
I am running a simple merge replication in SQL Server 2000. I have one database that is the publisher, and a second database that is the subscriber. When I add a new row to the subscriber it will replicate to the publisher as expected. However, the new row at the subscriber will then be deleted without explanation. The row will remain at the publisher though.
Does anyone know why it is doing this?
I'm trying to delete some records from some tables in a SQL Server 2008 R2 database. There's a foreign key relationship between the two tables. To make things easier here's the definition of both tables:
-- Parent table
CREATE TABLE [dbo].[PharmInvInItemPackages](
[InventoryInDetailID] [int] IDENTITY(1,1) NOT NULL,
[InventoryInID] [int] NOT NULL,
[ItemPackageID] [int] NOT NULL,
[code]....
I'm new to relational database concepts and designs, but what i've learned so far has been helpful. I now know how to select certain records from multiple tables using joins, etc. Now I need info on how to do complete deletes. I've tried reading articles on cascading deletes, but the people writing them are so verbose that they are confusing to understand for a beginner. I hope someone could help me with this problem.
I have sql server 2005. I use visual studio 2005. In the database I've created the following tables(with their column names):
Table 1: Classes --Columns: ClassID, ClassName
Table 2: Roster--Columns: ClassID, StudentID, Student Name
Table 3: Assignments--Columns: ClassID, AssignmentID, AssignmentName
Table 4: Scores--StudentID, AssignmentID, Score
What I can't seem to figure out is how can I delete a class (ClassID) from Classes and as a result of this one deletion, delete all students in the Roster table associated with that class, delete all assignments associated with that class, delete all scores associated with all assignments associated with that class in one DELETE sql statement.
What I tried to do in sql server management studio is set the ClassID in Classes as a primary key, then set foreign keys to the other three tables. However, also set AssignmentID in Table 4 as a foreign key to Table 3.
The stored procedure I created was
DELETE FROM Classes WHERE ClassID=@classid
I thought, since I established ClassID as a primary key in Classes, that by deleting it, it would also delete all other rows in the foreign tables that have the same value in their ClassID columns. But I get errors when I run the query. The error said:
The DELETE statement conflicted with the REFERENCE constraint "FK_Roster_Classes1". The conflict occurred in database "database", table "dbo.Roster", column 'ClassID'.
The statement has been terminated.
What are reference constraints? What are they talking about? Plus is the query correct? If not, how would I go about solving my problem. Would I have to do joins while deleting?
I thought I was doing a cascade delete. The articles I read kept insisting that cascade deletes are deletes where if you delete a record from a parent table, then the rows in the child table will also be deleted, but I get the error.
Did I approach this right? If not, please show me how, and please, please explain it like I'm a four year old.
Further, is there something else I need to do besides assigning primary keys and foreign keys?
I have a situation where deleting old records is blocking updating latest records on highly transactional table and getting timeout errors from application.
In details, I have one table called Tran_table1 in OLTP database. This Tran_table1 is highly transactional table, it will receive data for insert/update continuously
While archiving 2 years old records from Tran_table1 into Tran_table1_archive in batches(using DELETE OUTPUT INTO clause), if there is any UPDATEs on Tran_table1,these updates are getting blocked and result is timeout errors in application.
Is there any SQL Server hints to avoid blocking ..
Dear DBforum members
I have a problem Setting up pull subscription from a publishser to a subscriber , but I could set up Push subscription with out any problem between these two server .. can any one help me out.
I run SQL Server 2000 Enterprise edition.
I get the following error
"Publication 'ProdDB' does not exist. The step failed."
where ProdDB is the publication database from which my Push subscription is running.
thanx
Logs
Hi, I have two databases on MS. SQL Server 200 the first one is themain DB and the second one is a replica of it, both of them indifferent territories .I connect them using merge replication justwhen I need to merge the data.The problem is when I make import data or export data from anylocation (MS access ,MS SQL server ) to the second one (subscriber DB)or the main DB(publisher and distributor ) ,the imported data doesnot replicated to the other DB ???Normal transaction replicated smoothly.I hope you can help me.Thanks in advance.Mahmoud Khebaisa.
View 1 Replies View RelatedI have some problem about Merge Replication.i'm trying to merge Database A to Database B in local Server. So Database i want publisher contain this:
Because only Data in Table change therefore so i choosed it 100% Snapshot was generated after that ( Problem not a valid window user i already figured out )After that. I created Local Subscription in same Server ( Pull subscriptions and Subscription type: Client ),now problem is throw out."The schema script 'vwBuyADT_513.sch' could not be propagated to the subscriber."
I tried research so many time in Google but any information i found isn't useful for this problem.This problem still can ignore,Synchronization still running. But after 4-5 Hours running..This messages throw out: "The Publisher failed to allocate a new set of identity ranges for the subscription. This can occur when a Publisher or a republishing Subscriber has run out of identity ranges to allocate to its own Subscribers or when an identity column data type does not support an additional identity range allocation"
My question is:
Is there anyway solve 2 probem? :
1. "The schema script 'vwBuyADT_513.sch' could not be propagated to the subscriber."
2. "The Publisher failed to allocate a new set of identity ranges for the subscription. This can occur when a Publisher or a republishing Subscriber has run out of identity ranges to allocate to its own Subscribers or when an identity column data type does not support an additional identity range allocation"
I am using SQL Server 2000 SP4 running on a MS Server 2003 with SP2. I am preforming Merge Replication on a continouas basis and the Merge Agent keeps stopping with the error 203 The process could not enumerate changes at the 'Publisher'. There is no additional information available with this error. Does anyone have any sugestions as to why this is happening. I can manually re-start the agent but it will fail again for particular reason.
View 1 Replies View Related
Hello,
I would like to know what alternatives are avaliable to SQL Server Merge Replication. I am also looking for Third Party Tools. Can anyone name a few for me.
Hi, I posted about this before, and set out on my own to get this working, and haven't been able to. I'm trying to get merge replication working with my SQL server 2000, and after 2 weeks I still have nothing. I've gone through multiple 'walkthroughs' which all brought me to the same point. I'm getting down to crunch time, and I'm either going to use this or implement my own merge algorigthm (I'd much rather use this). So here's where I've gotten to:
View 4 Replies View RelatedI am working on a project that will require me to get a flat data file (excel spreadsheet) with hundreds of thousands of records. Each record is an Owner, and specifically what they own. There will be a field for OwnerName that I want to figure out a way to pull the data into a database like;
Table(Owners) - make sure owner is listed only once
Table(Properties) - joined to owners showing all properties that person owns
Now the tricky part, the owner names might not be exactly the same. Some records might have;
Smith, John
John Smith
Smith, John T
etc.
To make matters worse, this will be a continuous process. I will receive updated excel spreadsheets from time to time and will need to import the new records, many times overwriting the old data. For the good news, there should be an OwnerID that will be unique within the excel data. So as I am merging similar records into the Owners table, I should have a list of OwnerID's that can forever be used to link to the owner.
Hi,
View 36 Replies View RelatedHi,
I am trying to replicate a production database server,on sql server 2000 at a particular geographic location to a new failover database server on sql server 2000 in a different geographic location via internet. The intention here is to use the failover database during times when the production server is down or busy and the synchronization needs to be sceduled for every 10 min.
It will be of huge help if any expert could give the detailed process involved and any precautions that need to be taken. I also need to keep inmind to use the ever/odd sequence number generator during the replication implementation.
Also, Whether to use row-level or column-level tracking?
thanks
SV
I do a merge replication between Sql server 2000 and SQLCE 2.0
On my SQL2000 I have 4 tables i want to merge (specific columns only ) in 1 table for Merge with my SQLCe ( the table will be use for read only)
Question 1:
What is the best pratice for keep the information update?
Run store procedure before the synch for re-populate the table?:confused: or Make Trigger INSERT, UPDATE, DELETE in the all 4 table?:confused: or a mixte?:confused:
Question 2:
Does someone know about some web site talk about this type of trick?
Thanks
Hi ppl,
I have installed SQL Server 2005 x64 Enterprise edition with Service Pack 2 on a Windows Server 2003 x64 Standard Edition with Service Pack 2.
Now I have to configure Merge Replication that will work with SQL Server Compact Edition database on Windows Mobile devices.
Distributor and the Publisher are the same server.
IIS 6.0 is installed on the windows server. I have installed the SQL Server Compact Edition Server tools on the server. However the compact edition server tools are only available for 32bit servers and I have also found out from the article http://support.microsoft.com/default.aspx/kb/912430 that you cannot replicate data from SQL Server 2005 to SQL Server Compact Edition by using the 64-bit version of IIS.
So if this is true does that mean I can not use merge replication on 64 bit server? Does that mean I have to get another 32 bit server with 32 bit IIS on it to make this work or is there another work around. Am i missing something here?
Regards
Nabeel
Hi,
View 14 Replies View RelatedHey there!
In a nutshell, I want to do a merge replication with a SQL Server and
several Access databases. I haven't been able to find anything in the
documentation or 3rd party books.
Is this possible?
Thanks!
- Erik
Hi ,
I would like to get your advice in an issue that I am facing regarding merge replication.
The flow is like:
1) User enter his login name and password.
2) Host_name is set as the login name that the user enters.
3) Based on the HOST_NAME property after filtering user gets the records relevent only to him
(Differnet subscriber may use same mobile device).
4) He make some changes in the local sdf according to the business logic.
5) The application Syncs with server on the next login session.
My issue is when I am trying to run the application in emulator exactly at the sdf updating part the application terminates.
Error mess: Connection to Remote Device has been lost.....
If I execute the same sql insert query it works om the local sdf and master database.
Emulator used where Pocket PC 2003 SE and Windows Mobile 6 classic emulator.
I have installed 1) Visual Studio 2005 SP 1 2) net compact framework SP2.
When I comment all the code related to Sync ,application works witout any issue.
And the same application works in my "I mate kjam".
The code that I use is given below:
==========================================================================
public void Sync(string hostname, int newsub) // Parameters for HOSTNAME and flag to denote new user or existing //user.
{
SqlCeReplication repl = new SqlCeReplication();
repl.InternetUrl = @"http://231.000.000.211/Merge/sqlcesa30.dll";
repl.Publisher = @"SERVER";
repl.PublisherDatabase = @"Merge";
repl.PublisherSecurityMode = SecurityType.DBAuthentication;
repl.PublisherLogin = @"sa";
repl.PublisherPassword = @"password";
repl.Publication = @"Merge";
repl.Subscriber = @"MergeSub";
repl.HostName = hostname;
repl.SubscriberConnectionString = @"Data Source=""Program FilesMerge.sdf"";Max Database Size=128;Default Lock Escalation =100;";
try
{
if (newsub == 0)
{
if (File.Exists(@"Program FilesMerge.sdf"))
{
File.Delete(@"Program FilesMerge.sdf");
}
repl.AddSubscription(AddOption.CreateDatabase);
repl.Synchronize();
repl.Dispose();
MessageBox.Show("newuser sync Done");
}
else
{
if (!File.Exists(@"Program FilesMerge.sdf"))
{
repl.AddSubscription(AddOption.CreateDatabase);
repl.Synchronize();
repl.Dispose();
MessageBox.Show("FirstSync Done");
}
else
{
repl.Synchronize();
repl.Dispose();
MessageBox.Show("SameuserSync Done");
}
}
=================================================================================
Please advise......
I am running SQL Server 2000 and SQL Server CE on the handheld device. I have created the publication on the SQL Server.
I can subscribe to the publication successfully on the handheld and it creates the .sdf file just fine.
When I then attempt to synchronize, the process will run for a long time and eventually error out. (The database has a couple large data tables that are used for value lookups)
The error says the connection was broken.
Any suggestions on correcting this?
I am thinking of breaking the replication database into 2. One with the large lookup files and one with the updated tables. I still need to get the large database with the lookup tables onto the handheld though.
Any thoughts, advice or similar experience handling a situation as this would be appreciated.
thanks,
Dan
I've got a problem:
I want to transfer data between an sql server 2005 and my pocket pc. So i've installed a sql server CE on it.
I know that i can use the merge replication but, i don't have any IIS. So, i've got to transmit data though email that have got a file attached. I Know how to email from sql server 2005. When the pocket receive that email, i don't know how to insert the data in sql ce from outlook compact. Doi have tu use SSIS , in that case how can i run the package?
thanks
I have set up merge replication with 1 publisher and 1 subscriber. Distribution is handled by a 3rd server.
I can generate a snapshot at the publisher and apply it to my subscriber. But when I insert some data (approx 30,000 rows) , the Synchronization agent gives the following error when It runs:
The merge process is retrying a failed operation made to article 'xxx' - Reason: 'The Merge Agent was unable to synchronize the row due to one or more unanticipated errors in the batch of changes. When troubleshooting, increase the -OutputVerboseLevel setting, restart the agent, and check for and resolve any errors generated by the database engine. '.
I have increased the OutputVerboseLevel setting and specified a file path in the -OutputMessageFile but the File is not being populated. All the references on books online say to put the file path in the -Output parameter but when I do it says it can only hold an integer value. So I cant see the errors generated by the database engine.
Could anybody please assist with this issue?
Thanks
Hi,
I'm currently investigating the feasibility of having SQL Mobile on a number of devices running Windows CE. These devices will have to synchronize with the server (either using merge replication or RDA) over GPRS. The problem I have is that some of these devices will never be online. Is there are a way of synching these offline devices? The model I had in mind was using a USB key (or some other storage device) to download the latest updates from an online device and transferring this data to the offline device, and vice versa e.g. from offline to online and then merging. Is this feasible?
Thanks
Csharper
At first we received error like
"The merge process could not retrieve identity range resource for table..."
then after solving this error we again started syncing of servers manually then we got some other error like
"the process could not enumerate changes to the subscriber".
We tried our best to solve this problem but some error appears each time like
"The process could not deliver the snapshot to the Subscriber."
"The schema script 'sync -t"Design" -o"dbo" -d"\ECOSYSTEMD$FTPMSSQLEcoSystemftpECOSYSTEM_MLEcosystem_MLEcosystem20060619204802Design_1337.bcp" -hORDER( [intDesignId] ASC)' could not be propagated to the subscriber"
again identity erroe emerges and agin we do the same process.
How to solve these problem?
We have a central office with a SQL2005SP4 server (yeah, I know... old as heck) that's the main database and it has multiple subscribers in regional offices. Well... one of the regional offices server is failing, and it needs to be replace.
The original server is an ancient Win2003 86x
The Server team will build a new Win2008r2 64x, and use the same name and IP address
And I'm tasked with the SQL part.
I'll be installing the same version/patch of SQL, but 64x instead, and migrate all databases, including the system databases.
How do I handle replication? Do I need to reintialize from scratch? or can I just use the backup as a starting point?
We have a table in an SQL Server 2012 database that stores tree-like structures. Simplified for the purpose of my question, it has the following format:
Id int identity,
ParentId int,
GroupId int
Each record of the table represents an object identified by Id. An object may or may not have a parent in the same table, such that object.ParentId = parentObject.Id. A root object has ParentId = NULL. There are multiple root objects, so the table in fact stores multiple trees. What’s important is that the tree depth is not fixed, i.e. theoretically there can be any number of ancestor generations for an object. GroupId is a property of a root object; in theory none of the children of a root object has to have GroupId <> NULL; it can be assumed that any child has the same GroupId value as its root object.
A sample table having two roots (one grandparent and one parent), one non-root parent/child and 4 child roots:
Id ParentId GroupId
----------------------------------------------------------
1 NULL 200 root grandparent
2 1 NULL non-root parent/child
3 2 NULL child
4 2 NULL child
5 NULL 300 root parent
6 5 NULL child
7 5 NULL child
The table is not normalised, i.e. there’s no separate {root_object : group} table. However I don’t think normalising the table would solve the problem.
Now the problem. We need to set up merge replication from the table above (Master table) to the table of the same format in another DB. We need to replicate only those rows of the Master table that have a certain fixed GroupId value, e.g. 200 in the example above. If we ensure that GroupId in all descendant objects of a root object has the same value in the table as the root object itself that would be trivial. The table would look like this:
Id ParentId GroupId
----------------------------------------------------------
1 NULL 200 root grandparent
2 1 200 non-root parent/child
3 2 200 child
4 2 200 child
5 NULL 300 root parent
6 5 300 child
7 5 300 child
And the filter would look like this:
WHERE GroupId = 200
However out of performance considerations, we would like to avoid if possible filling GroupId for the descendant objects, because as it must be clear from the above, GroupId for a descendant object is quite easily deducible via a stored procedure or UDF (just need to go up the tree until ParentId = NULL). The problem is, I don’t know how to achieve this in a merge replication filter: it would only allow WHERE conditions and joins. I’ve have not had much luck with joins for merge replication in general, but here we have more complex algorithm, because the number of tree levels can be different for every object. And merge replication would not allow using UDF…
I have a problem with sql server merge replication in sql server 2000.
If my db owner €œdbo€? and replication setup under €œsa€? account it works with out any problem. But when I use another db owner it can not work properly.
For an example I have customer table ([dbo]. [Customer]) When I setup merge replication under sa account it€™s work properly.
Again I was setup merge replication using another db owner ([INV]. [Customer]) It doesn€™t work.
Hi
I am trying to complete sql server compact edition book online walkthrough "Creating a Mobile Application with SQL Server Compact Edition". I am successful to complete it as guided using all default settings (e.g. anonymous access, windows authenticaion etc.) and the sample run on both emulator and my pocket pc svc5000. I have following configuration..
Windows 2000 professional sp4
Sql server 2005 standard edition sp1
VS 2005 profesional edition (sp1 not installed)
Sql server compact edition
Sql server compact edition server tools
But the problem is that in production environment i will not be able to connect to the sql server using named instance (e.g machine_nameinstance_name). i have to use ip address in that situation. so i tried to modify the sample to use ip address in place of named instance and then the problem starts.. I have configued my sql server to allow remote connections using tcp/ip and named pipes using sql surface area config tool.
When using named instance i used following code to Synchronize with sqlserver 2005 with and it worked perfectly :
Dim filename As New String("Program FilesTestTest.sdf")
Dim repl As New SqlCeReplication()
repl.InternetUrl = http://machine_name/Test/sqlcesa30.dll
repl.Publisher = "machine_nameinstance_name"
repl.PublisherDatabase = "Test"
repl.PublisherSecurityMode = SecurityType.NTAuthentication
repl.Publication = "Test"
repl.Subscriber = "Test"
repl.SubscriberConnectionString = "Data Source='" + filename + "';Password='';Max Database Size='128';Default Lock Escalation ='100';"
Try
repl.AddSubscription(AddOption.CreateDatabase)
repl.Synchronize()
Catch err As SqlCeException
MessageBox.Show(err.ToString)
End Try
When i tried to do replication using ip address it shows following error:
System.Data.SqlServerCe.SqlCeException was unhandled
HResult=-2147467259
Message="Failure to connect to SQL Server with provided connection information. SQL Server does not exist, access is denied because the IIS user is not a valid user on the SQL Server, or the password is incorrect."
NativeError=29061
Source="Microsoft SQL Server Compact Edition"
StackTrace:
at System.Data.SqlServerCe.SqlCeReplication.Synchronize()
at TEST.MainModule.Sync()
at Test.MainModule.Main()
I am using following code to connect using ip address:
Dim repl As New SqlCeReplication()
repl.InternetUrl = http://XXX.XXX.XXX.XXX/test/sqlcesa30.dll
repl.PublisherNetwork = NetworkType.TcpIpSockets
repl.PublisherAddress = "XXX.XXX.XXX.XXX,XXXX"
repl.Publisher = "SQL2005" 'instance name of sql in sql2005
repl.PublisherSecurityMode = SecurityType.NTAuthentication
repl.PublisherDatabase = "Test"
repl.Publication = "Test"
repl.Subscriber = "Test"
repl.SubscriberConnectionString = "Data Source='" + filename + "';Password='';Max Database Size='128';Default Lock Escalation ='100';"
repl.AddSubscription(AddOption.CreateDatabase)
repl.Synchronize()
I have give rights to iuser_manchine_name in the public access list of publication and on database also.
I don't have any idea on where i am wrong... Please help soon..
Many thanks in advance..
We are trying to implement merge replication between 2 servers. Database size is around 11GB.
When I tried to create publication, snaphot agent is failing with following errror.
Error: 14151, Severity: 18, State: 1.
Replication-Replication Snapshot Subsystem: agent NBTENTSQL1X-PayDirectWeb-PayDirectPub-2 failed. The
replication agent had encountered an exception.
Source: Replication
Exception Type: Microsoft.SqlServer.Replication.ReplicationAgentSqlException
Exception Message: String or binary data would be truncated.
Cannot find the object 'MSmerge_sel_4D388
The table where the snapshot is breaking contains around 169 columns. Can someone please help me get through this error ?
I need to merge replicate data to two different types of subscribers:
Clients subscribers which will have a very small percentage of the data from the central database. The data on these machines will be managed using dynamic filtering on host_name()
Server subscribers which will manage a copy of all the data from the central database
There will be far fewer server subscribers than client subscribers.
As I see it I have two options for the configuration
1) Use two separate merge publications €“ one which is filtered and one which isn€™t
2) Use a single merge publication and setup the filtering so that the server subscribers receive all the rows
Which option is likely to lead to better performance?
With option 1) there would be 2 complete sets of replication metadata which need to be maintained €“ so I am tending towards option 2. Are there any disadvantages in using a dynamic filter to return a very large number of rows?
Hi,
Transactional replication allows updatable subscriptions where changes at the subscriber are replicated up to the publisher, this can happen via Immediate Updating subscriptions, Queue subscriptions and P2P (new in SQL 2005), all forms of Transactional replication.
Any compared document between merge replication and Transactional with updatable subscribtion ?
Thanks,
Tarek Ghazali
SQL Server MVP
I'm updating some tables in a subscriber database with a stored procedure. After the tables get updated I'd like to sync them with the other subscriber dbs and the publisher db in that same stored procedure.I can do it manually in SSMS with the View Synchronization method. Are my only alternatives a batch job or C#?
View 1 Replies View RelatedI have a merge replication. Currently works fine. Publisher & Distributor are on the same server. I need to change the location of the alternate folder for the snapshot files.
I’ll probably just change it through the GUI, but would I use sp_changedistpublisher or sp_changemergepublication if I were scripting everything?
My real concern is the subscribers. Do I have to ‘tell’ the subscribers where the alt folder has been changed to? Do I just run sp_changemergepullsubscription on the subscribers?