Sql Server Synchronization
Feb 12, 2006
I want to realize these steps in .net2005 C# programme:
1) Start Sqlserver2005 publication snapshot agent.
2) View Sqlserver2005 snapshot agent status, if it finished then go on.
3) Start Sqlserver2005 Subscription synchronization agent.
4) View Sqlserver2005 synchronization agent status, if it done then continue.
I tried to find some SP, dll, method or script to realize this funtion, but failed.
I really need help.
A thousand thanks for your patience.
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Sep 6, 2006
Hello everybody,
There is some strange behaviour i've recently noticed while watching synchronization progress in Replication Monitor on SQL 2005 Server Standard with merge replication configured. The merge process seems to repeat several times.
This is the initial synchronizaion (reinitalization at the subsciber). Client is using Microsoft.SQLServer.Replication objects from .net framework assemblies.
The synchronization starts normally (status is "Running"). The last message of selected session box shows (among other messages): "Beginning evaluating partial replication filters" then "Finished evaluating partial replication filters" and finally "Merge completed after processing xxx changes... etc." after a few seconds. Status changes to "Completed" and then... the merge process starts again!! "Beginning evaluating partial replication filters" etc. And this repeats about 15-20 times.
And so whole process takes about 15 minutes instead about 45 seconds to complete initial synchronization. The number of changes is "Merge completed after processing ..." never change since the first such message.
Is this some bug in web synchronization or some invalid configuration setting? Why does merge process repeat itself so many times??
Please help, thanks in advance.
Kuba
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Jun 6, 2002
hi!
all.
i want to create a web application architechture which having multiple web server.
this all web server having sql server database.
now what i want is to Keep all data in all databases.
means i want to synchronize my all sql servers.
it is also possible ki my one webserver can have multiple clusted database.
hope to hear soon from u people.
Regards
Viky
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May 24, 2007
Dear All,
How to do Sql Server Synchronization.
Say:
Server "A" contains "123" database.
Server "B" contains "123" database.
But changes is made on Server A. I want that every changes made on server A "123" database should reflect on Server B "123" database on real time basis.
whether it is done through replication or any other way, i want practical answer so that i can try it out.
Thanks
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Jun 23, 2005
I have two SQL Server Database, one is at my company and one is at my company's customer. There are two related databases and two related tables in the servers. When I make a change in the table at my database, I want these changes to be done at the other server. I mean the related tables should have the same records all-time. I made a search and found that "Linked-Servers" is a good idea in this scenario. I made a linked server and run the following query in the Query Analyzer;insert into SAMPLE_LINKED_SERVER.SAMPLE_DATABASE.dbo.SAMPLE_TABLE(id,name) Select id,name From MY_SAMPLE_TABLE Where id Not In (Select id From SAMPLE_LINKED_SERVER.SAMPLE_DATABASE.dbo.SAMPLE_TABLE)This query works as I wanted. But I want this process to be done automaticaly without user interaction. Should I use Trigger? Do you suggest using Linked Servers?Or is there any other methods to make synchronization between two SQL Server Database?If I cannot find a good method in SQL Server, then I will be forced to make this synchronization by writing .NET code, but that would be difficult I think. Any suggestion and comment is wellcome.Thanks in advance.
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Oct 29, 2002
hi!all
i want to synchronize 2 sql server database resides at diffrent locations.
i want steps to do synchronization with the help of sql server enterprize manager as well from Sql - Dmo and VB.
:confused:
Thanks all in advance.
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Oct 27, 2005
Hi all
I have two SQl Server 2000 in two different location, at one point I wand to Transfer the information in one table (in Sql server 1) to the same table (in SQl server 2) using Stored Procedure.
Can any one through some input on how to write the SP?
Regards
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Sep 10, 2007
We are working on data synchronization application. This application will synchronize data which are stored in flat file on several client machines generated by windows application to central database (Probably My SQL or SQL Server).
This application/agent will continuously monitor all the modifications done by windows application on client machine and then synchronized data with the central database.
Currently we are looking for unidirectional synchronization i.e. from client to server only.
If you have worked on similar kind of project, it would be great help if you share technology/architecture used in your application.
Thanks & Regards,
Jugal Shah
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Aug 19, 2005
I have a VB app which stores information in an Access 2000 db. The VB apphandles multiple users (it's a logbook type of application, users sharelookup tables but don't share information among themselves - IOW, I couldn'tsee your log entries and you couldn't see mine).We're adding a web interface to the package - basically a scaled down dataentry interface to allow users to add log entries without being at theirworkstations. The web version will be storing data in a SQL Server 2000 db.I need to be able to synchronize data between the two - if a usersedits/adds a log entry in the desktop version, they need to be able tosynchronize the desktop and web (this is done via a button click, no"realtime" updates). Same scenario with the web side, but the web interfacewon't acutally be able to synch with the desktop - the user would have toinitiate the synch from their workstation. We've pretty much worked out thesynch logic path, and we're working on acutally interfacing with the SQLServer.Can this be done reliably using a standard ADO connection between thedesktop and the web site? I would imagine traffic would be somewhatminimal - on average, no more than 100 records would be added or updated.I've done some testing on this, and with 20 - 50 records it seems to workfine both ways.Suggestions of better/more reliable methods would be most appreciated, andthanks for your time
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Jan 21, 2008
Does Sql Server Compact Edition 3.5 support RDA synchronization with Sql Server 2000 database?
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Jun 30, 2007
Hi
I am stuck while doing synchronization between SQL Server 2000 and SQL Server CE 2.0.
getting an Error "Header information is either corrupted or missing."
My Specification is follow :
Windows XP with SP2
Visual Studio 2005 Enterprise edition
SQL Server 2000 (SP3a)
SQL Server CE 2.0
Application is Smart Device application (Pocket PC 2003) using C#.
Microsoft ActiveSync 4.5
IIS 5.1
I followed steps as per given in this URL :
http://msdn2.microsoft.com/en-us/library/ms839425.aspx#sql_serverce_replication_net_topic2I performed eeach steps successfully, My code is as per given below.
private void button1_Click(object sender, EventArgs e)
{
getSyncReady();
}
SqlCeReplication loSqlCeReplication;
private void getSyncReady()
{
try
{
String lsDBFile = "Northwind.sdf";
loSqlCeReplication = new SqlCeReplication();
loSqlCeReplication.InternetUrl = "http://192.168.0.5/Northwind/sscesa20.dll";
loSqlCeReplication.Publisher = "C99";
loSqlCeReplication.PublisherSecurityMode = SecurityType.NTAuthentication;
loSqlCeReplication.Publication = "NorthwindProducts";
loSqlCeReplication.PublisherDatabase = "Northwind";
loSqlCeReplication.Subscriber = Dns.GetHostName();
loSqlCeReplication.SubscriberConnectionString = "Data Source=" + lsDBFile;
if (!System.IO.File.Exists(lsDBFile))
{
MessageBox.Show("The application requires synchronization", "Replicator",
MessageBoxButtons.OK, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button1);
loSqlCeReplication.AddSubscription(AddOption.CreateDatabase);
}
loSqlCeReplication.Synchronize();
}
catch (Exception foException)
{
throw foException;
}
}
I am not getting whats going wrong.
My Firewall is disable and i have not installed any antivirus softwares (including Norton internet Security....in many forums i got this suggestion but i think its not an issue,even though for solving this issue i performed new installation of Windows XP SP-2 )
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May 8, 2007
Hi there,
I need to create a synchoronization with the Server Mobile (displayed in the Pocket PC emulator) once the website (SQL server Database) is updated. Is there any coding available? How is it possible? PLSSSSS HELP ME....
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Oct 26, 2005
Hello EveryoneWe have a third party tool which maintains its own customdatabase,DB1 on SQL Server 2000 on Server A (Windows 2000). We built aninhouse application which maintains a transactional database, DB2 alsoon Server A derived from DB1. Since the DB1 is frequently updated thesynchronisation between the databases is currently maintained by usingviews in DB2 which pulls in all the required data from across tables inDB1.But we found that the cost of employing views, referencing tablesacross databases has made the inhouse application slower and so as aapparent performance tuning measure we plan to maintain a subset ofdata(for a specific time period) from DB1 in actual tables with sameschema in our transactional database DB2. But since the tables in DB1are frequently updated during the day we are required to thesynchronise the corresponding tables in DB2 with their counterparts inDB1. The only constraint in this synchronization being that the thirdparty custom database,DB1 cannot not be subjected to any changes (likecreation of triggers) as it is maintained by a different group ofpersonnel.I read about Triggers,Maintenance Jobs and Replication but not surewhich would suffice our needs.Are there any recommendations on how thiscould be carried out? Any suggestion would be welcome.Thankschandra
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Aug 5, 2015
How can I keep a production SQL server and DR SQL server in sync? I'm not referring to data - I can use SAN replication for that. I'm referring to the many configuration settings and objects that are external to the databases..Server settings (xp_cmdshell, etc.)LoginsServer- and database-level rolesServer- and database-level permissionsObject level permissionsMaintenance plans/SSIS packagesSQL Agent jobsJob schedulesDatabase mail configurationObjects (proxies, alerts, credentials, operators)Linked serversScheduled tasksODBC connections
I realize that many of these items can be scripted out, and periodically run on the DR server; but not all of them can be. And some, although they can be scripted, may be problematic to restore on a DR server, such as SQL Agent jobs. And even with backup scripts, it seems like developing a process to refresh a DR server would be overwhelming given the number of elements and exceptions. I'm not adverse to doing the work to create a completely scripted solution, but was curious if one already exists that handles all or most of the elements in my list.
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Apr 13, 2007
Hi,
I need to move my database servers from one location to another. The issue is that I have over 200 databases to move and my clients can't afford a downtime. The collective volume of all the databases is over 2.5 TB and growing.
I am thinking to copy these databases in batches over the WAN to the new location and replicate them using Transactional replication till I have all the databases moved and synchronized.
Will it be wise enough to use replication for synchronizing 200 databases or is there a better approach which I can use to move these databases with minimum downtime and compromise on performance of applications.
Note: Migration is from SQL Server 2000 to SQL Server 2005.
Thanks in advance.
Ritesh
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Mar 20, 2007
Hi
I am doing a task for synchronize data between SQL server 2005 and SQL Mobile.
Created a publication in my SQL server 2005
Created a subscription in my device thru coding. The code is below.
SqlCeReplication repl = null;
try
{
repl = new SqlCeReplication();
repl.InternetUrl = @"http://localhost/TestFirst/sqlcesa30.dll";
repl.Publisher = @"zcs6";
repl.PublisherDatabase = @"TestNow72743";
repl.PublisherSecurityMode = SecurityType.DBAuthentication;
repl.PublisherLogin = @"sa";
repl.PublisherPassword = @"Test";
repl.Publication = @"TestFirst";
repl.Subscriber = @"TestNow7274310";
repl.SubscriberConnectionString = @"Data source = 'TestFirst.sdf';";
if (!File.Exists(@"TestFirst.sdf"))
repl.AddSubscription(AddOption.CreateDatabase);
repl.Synchronize();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
repl.Dispose();
}
If I run this code from my device the replication work successfully. Now I am calling synchronize from device.
My question is How can i start synchronization from server side. Is it possible to do that from server side?
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Jul 4, 2007
I create a distributed database for mobile application. I replicate a table that distribute on mobile device. I follow instruction how to create distributor, publication, replication, web synchronization, and subscriber database. I have done fine for synchronization between mobile database into desktop database (in this case SQL Server 2005 Standard Edition). But the problem is how can setup publication so it can bidirectional, not only from mobile database into desktop database, but also from desktop database into mobile database. So in the mobile database can have same data with desktop database even on mobile database lost some old data.
Its like data exchange between both engine. Desktop and mobile have same data. For filtering I can put filter on the desktop server for replicated table, so don't worry how I split the data.
Thanks a lot.
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Sep 21, 2005
I have a master database containing data from many client databases located in various locations.
I have to synchronize data between the master & client databases. If data in client changes, the master needs to be updated. If the data in Master changes, the client needs to be updated.
Because of the security issue, the client location will initiate this process of Synchronization. It has to be automatic process scheduled once everyday. The Client databases are SQL-Express Databases and the Master is Sql Server 2000 database.
What is the industry standard or the best way to achieve this task ? Are their any tools that easily accomplish this? Can SQl Server Replication achieve this ?
Thanks
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Mar 9, 2006
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
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Apr 17, 2008
Hi,
We have a window based application which uses sql server express as a backend...
Currently, We are sending xml files to the users to update their application with data users also sends data in xml format to us.
We receive data from various users and collate it on a central server for analysis..
We prefer having sql server express as a local data store so that user does not depend on live connection to the central server. But we would like to have a on demand syncronization or scheduled snyncronization with central sever ,,,
There are many approaches to it... my question is which is the best for our given scenario. Is it using web service or sql sever broker or sql synnchronization.
If you can direct me to some practical implementation then it will be great help.
Thanks
San
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Dec 7, 2006
Hello,
I plan to use :
- SQL Server on server
- SQL Server Express on notebooks
- SQL Mobile on Windows Mobile 5.0 devices.
How can I create a replication between SQL Express and SQL Mobile ? SQL Server express cannot act as a Publisher server.
In this post a Senior Program Manager says It is possible but I don't find how to :
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=55236&SiteID=1
Thanks
JF
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Oct 24, 2014
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#?
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Mar 11, 2006
i am using C#..net
I am synchronizing the sql server data with sqlce.but i get an
error when i call synchronize function. i am using sqlcereplication
class.
the error is
"a call to sql server reconciler failed"
native error 29006
and sometimes
native error
29045.
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Dec 21, 2006
I have something called Configure Web Synchronization Wizard under my SQL Server 2005 Mobile Edition on my XP machine. My problem is that I need to install it on a Windows 2000 machine and I can't find the installation package for it. I installed SQL Server 2005, which installed SQL Server 2005 Mobile Edition, but I didnt' get the wizard. I also installed Visual Studio 2005.
Anyone know where it is?
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Jan 21, 2008
We have been using Sql Server 2005 Compact Edition 3.1 RDA synchronization method successfully on Sql Server 2000 database. Recently we moved the database to Sql Server 2005, sync doesn't work anymore, it just hangs on one table. On further investigation, we found out that it's the index on that table that causes this. We removed the index, it works fine. We are wondering the root cause, removing the index is not a solution for us. Any thoughts?. Thanks.
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Aug 12, 2007
Hi,
I am developing an application for pocket pc 2003 smart device which utilizes synchronization between SQL CE 2005 and SQL server 2005 by means of REMOTE DATA ACCESS method call PULL( ) and PUSH( ) but currently these are the details of the error Im encountering when PULL( ) method is called:
Error code: -2147467259
Descripion: An error occured on the computer running IIS.Restart the IIS server.
Minor error: 28022
Source: SQL server CE
Currently Im developing this application as a final project and due to some limitations I have setup my pc to act as the SQL server and the IIS server both on the same machine.
Any help will be appreciated, thanks.
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May 6, 2008
Hi! Is there a free tool that would synchronize the database in development with the database in the live server? Thanks!
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Sep 8, 2005
Is it possible in SQL Server to have replication happen immediately aschanges are made. That is, a change is made on server A, and that change isautomatically applied to server B, rather than the replication happening atset intervals?Thanks.
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Feb 19, 2007
Hello guys!
I went through the bunch of documentation pages about configuring the one for providing web subscriptions.
The most usefull for me were:
Security Architecture for Web Synchronization
How to: Configure an IIS Server for Web Synchronization (SQL Management Studio)
How to: Configure a Subscription to Use Web Synchronization
Topologies for Web Synchronization
Securing the Publisher
Subscribing to Publications
Mssubscription_properties (Transact-SQL)
How to: Configure a Subscription to Use Web Synchronization (Replication Transact-SQL)
sp_addmergepullsubscription (Transact-SQL)
Web Synchronization for Merge Replication
But I still have questions about it. If you could help me with small notes about subscribing to web based merge publication I would really appreciate that!
I believe, I just need a bit of clarification. The target setting is simple as it is: a client should connect to the our hosting server via HTTPS and update his pull subscription on demand by running .NET application.
Avoiding the server part, are the following steps correct and enough to accomplish what I need?
1. To create subscription, should I use the script:-- This script uses sqlcmd scripting variables. They are in the form-- $(MyVariable). For information about how to use scripting variables -- on the command line and in SQL Server Management Studio, see the -- "Executing Replication Scripts" section in the topic-- "Programming Replication Using System Stored Procedures". -- Publication must support anonymous Subscribers.-- Execute this batch at the Subscriber.DECLARE @publication AS sysname;DECLARE @publisher AS sysname;DECLARE @publicationDB AS sysname;DECLARE @websyncurl AS sysname;DECLARE @security_mode AS int;DECLARE @login AS sysname;DECLARE @password AS nvarchar(512);SET @publication = N'AdvWorksSalesOrdersMergeWebSync';SET @publisher = $(PubServer);SET @publicationDB = N'AdventureWorks';SET @websyncurl = 'https://' + $(WebServer) + '/WebSync';SET @security_mode = 0; -- Basic Authentication for IISSET @login = $(Login);SET @password = $(Password); -- At the subscription database, create a pull subscription -- to a merge publication.USE [AdventureWorksReplica]EXEC sp_addmergepullsubscription @publisher = @publisher, @publication = @publication, @publisher_db = @publicationDB, @subscriber_type = N'anonymous'; -- Add an agent job to synchronize the pull subscription. EXEC sp_addmergepullsubscription_agent @publisher = @publisher, @publisher_db = @publicationDB, @publication = @publication, @distributor = @publisher, @job_login = @login, @job_password = @password, @use_web_sync = 1, @internet_security_mode = @security_mode, @internet_url = @websyncurl, @internet_login = @login, @internet_password = @password;GO
What is @job_login parameter here? As I understand, I will not run SQL Agent job as our client uses MS SQL Server 2005 Express. And I do not want to run it as we will provide a client with .NET application for performing synchrinization on demand
Parameter @publisher means full SQL Server instance name? For example, MYMACHINEMSSQLSERVER?
What user will be used to connect to the distributor and to the Publisher? Will it be @internet_login?
Do I need running sp_addmergepullsubscription_agent if I€™m going to use the following .NET application code to synchronize over the Internet?
2. To perform synchronization with our hosting servers, should a client use the following code?
// Define the server, publication, and database names.
string subscriberName = instanceName;
string publisherName = instanceName;
string publicationName = "AdvWorksSalesOrdersMerge";
string subscriptionDbName = "AdventureWorksReplica";
string publicationDbName = "AdventureWorks";
string hostname = "adventure-works\garrett1";
string webSyncUrl = "https://" + instanceName + "/SalesOrders/replisapi.dll";
// Create a connection to the Subscriber.
ServerConnection conn = new ServerConnection(subscriberName);
MergePullSubscription subscription;
MergeSynchronizationAgent agent;
try
{
// Connect to the Subscriber.
conn.Connect();
// Define the pull subscription.
subscription = new MergePullSubscription();
subscription.ConnectionContext = conn;
subscription.DatabaseName = subscriptionDbName;
subscription.PublisherName = publisherName;
subscription.PublicationDBName = publicationDbName;
subscription.PublicationName = publicationName;
// If the pull subscription exists, then start the synchronization.
if (subscription.LoadProperties())
{
// Get the agent for the subscription.
agent = subscription.SynchronizationAgent;
// Check that we have enough metadata to start the agent.
if (agent.PublisherSecurityMode == null)
{
// Set the required properties that could not be returned
// from the MSsubscription_properties table.
agent.PublisherSecurityMode = SecurityMode.Integrated;
agent.DistributorSecurityMode = SecurityMode.Integrated;
agent.HostName = hostname;
// Set optional Web synchronization properties.
agent.UseWebSynchronization = true;
agent.InternetUrl = webSyncUrl;
agent.InternetSecurityMode = SecurityMode.Standard;
agent.InternetLogin = winLogin;
agent.InternetPassword = winPassword;
}
// Enable agent output to the console.
agent.OutputVerboseLevel = 1;
agent.Output = "";
// Synchronously start the Merge Agent for the subscription.
agent.Synchronize();
}
else
{
// Do something here if the pull subscription does not exist.
throw new ApplicationException(String.Format(
"A subscription to '{0}' does not exist on {1}",
publicationName, subscriberName));
}
}
catch (Exception ex)
{
// Implement appropriate error handling here.
throw new ApplicationException("The subscription could not be " +
"synchronized. Verify that the subscription has " +
"been defined correctly.", ex);
}
finally
{
conn.Disconnect();
}
What does HostName parameter use for? What is that host? Subscriber€™s machine name instance name? Or Publisher€™s? Or Distributor€™s?
Why parameters PublisherSecurityMode and DistributorSecurityMode have value SecurityMode.Integrated? How it is used in the replication model for web synchronization? As I understood from the documentation, client (Merge Agent) should connect to the Subscriber, get the changes, connect to hosting server via HTTPS and perform transactions through the SQL Server Replication Listener, thus the internet login to the IIS should be used to perform all the operations on hosting server side? The same internet login will be used to get snapshot from UNC share?
If I€™ve chosen to use FTP to provide with snapshots, should I then provide ftp parameters to sp_addmergepullsubscription_agent stored procedure or they will be used automatically by ISAPI filters on hosting server?
Thank you.
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Mar 24, 2006
Hello,
I'm having to build a smart client application that works with an offline sql express database on the client. And works with several types of databases - that may be configured to work as a central server. The list includes the sql server family including 2000, 2005 and express and also IBM DB2.
I have to address some rather complex merge replication scenarios. By Merge I mean the ability to deal with handling and synchronization of bi-directional changes. More specifically changes to data may be made to any database in the system. either local or central.
I'm afraid, I cannot use sql replication in a heterogenous mode for several reasons. Some being - the database is being auto attached on the client, the application is expected to live up to the 'low impact' install ideology and should not need any major configuration etc.....
Are there any recomended approaches/Ideas one may use to acheive replication. Any links/information/ideas will be great.
Thanks,
Avinash
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Sep 25, 2007
First please look at image:
Code Snippet
http://www.patysie.com/screen.png
Can I be 100% sure that script component 3 (orange) will start AFTER script component 1 (yellow) is finished?
Sorry for link but I couldn't paste an image.
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Jan 31, 2008
Hi!
I'm developing a Windows Mobile solution (Pocket PC Win 5-6). I have Sql Server CE on the device and I use RDA (Remote Data Access) to pull the tables to the Sql Server CE. I use RdaTrackOption.TrackingOffWithIndexes so I can Alter the table design. Then I use the function SubmitSql to push back my changes. On the server I have a table for example Customers, it has a column called CustomerId with identity(1,1). Let's say the highest Id is 100 and the lowest is 50, when I add a record in the Sql Server CE it gets CustomerId = 1 then next one 2 etc which means identity is working but does not continue after 100. I don't need to use the CustomerId when I push my data back because I have sql syntax taking care of @@IDENTITY when inserting new records. Anyone who knows why it begins on 1 and not 101?
/Magnus
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