Synch

Apr 17, 2006

Hello,

I would like to request you to kindly point me to a location where I may obtain more ideas/suggetions/details on how synchronization may be performed in a real world scenario ?

MS has been promoting smart clients and offline availability, but I cant seem to find any material that outlines some ideas/techniques/pointers as to how this may be acheived sans SQL Server replication

Essentially, what I'm looking for is someting that would guide a not-so-solid-with-databases person like me through how synchronization (sans sql replication engine) may be implemented - any watchouts etc..

Regards,

Avinash

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Synch-ing Databases

May 13, 2002

Hi all,

Heres the deal -

I have several remote users - all running the same program, with a local copy of MSDE...

I would like to setup a master server at my office that will act as a repository for the data that is generated at the remote sites.

I would like the remote users to establish a connection with the server (tcp/ip) and upload all the data they have entered into the local database.

They do not need to download any data - this is accomplished through the web services of SQLXML -

they just need to upload all the data they have, without destroying the data from before.

I have some concerns on the auto-inc that is used in the tables now and how they will react to each other in the master database...

thanks for any help


take care

tony

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Keeping 2 DBs In 'synch'

Jan 10, 2005

Hi all, here are my goals: Have the same DB on two different stand-alone computers, and keep them up-to-date from each other.

Basically a user would input to a DB for a week. Then every week or two, update the other stand alone DB with the new input. The DB would be exactly the same.

What are my options for this? I'd like it as easy as possible! Are there any software packages that deal with this type of transfer, etc.? Thank you!

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Log Shipping - Synch

Jul 23, 2005

I have to schedule the automatic restore the standby database fortesting backups . The database was already in log shipping mode. Up towhat point do I need to restore the database without affecting the logshipping sequence? Can we query the log shipping tables for the lastscn applied and recover up to that point? Any suggestoions are welcome.ThanksTram

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Best Way To Synch 2 Tables?

Nov 9, 2007

All,I have an Access DB. On a nightly basis, I want to look at an OtherDB (not Access, but SQL) and:+ Add any new records from Other.Clients into Access.Clients


Quote:

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Synch With Master Database

Apr 25, 2002

Hi all,

We are going to have several dozen servers around the country- each with a mirror copy of the initial database (blank) loaded upon them.

The data will be entered at each station, and then once a month, the systems will dial into the 'net and -

this is where i am getting stuck -

we would like the data from the remote areas to update the data in the master database -

What would be the best solution to update the data from the remote station into the master database???


thanks
tony

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Merge Replication - How Can I Synch

Sep 8, 2006

we have a merg replication running in three regions UK,USA and AU

my question is in one of our test environment testers managed to get a few tables out of synch while the replication is out.

we have re-established the replication since then and it worked fine untill they try to update records from those out of synch tables. as usual we get conflicts.

we don't really know how many tables are out of synch either. we have about 500 tables.

is there a way to synch tables from with in the merge replication??

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HELP US MICROSOFT: SYNCH BETWEEN SQL EXPRESS AND SQL MOBILE

Mar 28, 2006

Hi Everyone

As most of you do, I am eagerly awaiting the ability to synchronize my sql mobile database on the hand held to a local sql express database on my local machine

I know users in Microsoft have pointed out to us that we are getting things for free.

At the same time, Microsoft is getting our patience for free and at a cost to us developers.

Its nearly April and as one article says Microsoft will release a fix for this inadequacy

Microsoft...we are happy to pay for this. Palm offers it so what is the big deal. Its not the

reinvention of the wheel. We would have liked that instead of the server synchronization

that bypasses the local sql express database

I as many others are happy to pay

Please let us know when you will be addressing this problem.

I would appreciate the feedback and frustration of other developers. Maybe this will show them we are really running out of time with our clients

Regards

Touraj

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Sql Server 2005 User Synch

Jan 30, 2008

Hi ... I am converting SqlServer 2000 databases to SqlServer 2005. It is working great for the most part.
The issue I am having is that a user with a schema that owns objects is established in the database and no user is defined in the instance logins. I can see where if I add the instance login then the Principal_id does not match. Cannot drop the user/schema as there are referenced objects.

I got around this in SqlServer 2000 by updating the IDs to match but now they are views and updating is not allowed.

Is there a straightforward way to resynch the database user to a newly created login?

Thanks,
John

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Password Out Of Synch Between W2K && Local SQL Server On My Worksation

Jul 20, 2005

Hi,I had this problem in version 7 and dont remneber How I solved it!!I have installed a local SQL Server (2000 aka version 8) on myWorksation (W2K), I have picked NT authuntication.Everything was fine untill I changed my password. Now SQL server cannot start because it fails to login. The old password is embeddedsomwhere and I cant egt to it!!!My workstation is on a network, so the password is my networkpassword.Everythinng is MS on our network.Any help would be appreciated.ThanksFardad

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Looking For A Db Schema Read/write/synch Tool

Jul 20, 2005

Hello,I'm relatively new to the database world so please forgive me inadvance for my ignorance. I have recently been tasked at my job withfinding a tool that will perform the following tasks: 1) extractschemas from a db, 2) produce a difference report between schemas fromtwo databases, and 3) synchronize two schemas. The purpose is forproduct upgrades during which an existing database schema will need tobe synchronized with a baseline schema.The tool must support the following database vendors (versions givenin parenthesis): Oracle (8i/9i), Sybase (12.x), Informix (9.x), MSS2000, and IBM DB2 (7/8).I have spent the last several days downloading and researching avariety of tools such as Aqua Data Studio, DbVisualizer, DBExplorer,DBDiff, and AdeptSQL. I thought it would be a good idea to post amessage to a few database newsgroups and ask for any recommendationsdatabase developers may have.So if anyone has any recommendations on such a tool or softwarepackage, I would greatly appreciate any information.Thanks!Chad Smith

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Setting Up Web Synch - IIS Not Found On Web Server Error

Oct 10, 2007

We are trying to set up Web Synchronization, but we keep getting the error "IIS ws not found on the web server. Please specify a computer name that has IIS installed".

Our Distributor/Publisher are on one box, IIS on aother box. Both boxes are in the same domain (test environment), and both boxes are being logged into with a domain account.

We can get this to work in another similar environment so we don't know why this one isn't working. Is it permission issues?

Thanks...

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Null Reference Exception During Synch (can't Trap With Try-catch)

Mar 12, 2007

Dear all,

I am running into a null reference exception on replication with SQL Server 2005 Compact Edition. The problem occurs at repl.synchronize(). Even though the statement is inside a try-catch block, the exception is not caught, and the application quits.

Device O/S: Windows Mobile 5.0 v 5.1.195 Build 14957.2.3.1
Hardware: Dell Axim X51v, Intel PXA270
Database: SQL 2005 SP2 (no post SP2-patches)

Exception shows as "an unexpected error has occured in AppName.exe. Select Quit and then restart this program, or select Details for more information." Details:
.. at NullReferenceException at AppName.Form1.Synch()
.. at .... (various lines)
.. at AppName.Form1.Main()

The application is based on the tutorial (Creating a Mobile Application with SQL Server Compact Edition) at http://msdn2.microsoft.com/en-us/library/ms171908.aspx.

The application was successfully working initially but then stopped working on replication after some minor modifications which were not related to the replication code, e.g. adding some buttons to the form.

Three things are puzzling me here..

1. The fact that this is a NullReferenceException and not a SqlCeException
2. Why the try-catch block doesn't work
3. Why the exception occurs

Is this a bug or am I doing something wrong here?

Any help would be appreciated.



Code sample below:

Sub Synch()
Try
LogMsg("Deleting db...")
DeleteDB()
LogMsg("Initializing repl...")
Dim repl As New SqlCeReplication
repl.InternetUrl = http://192.168.0.100/SQLMobile/sqlcesa30.dll
repl.Publisher = "TRKSRV"
repl.PublisherDatabase = "trk_db"
repl.PublisherSecurityMode = SecurityType.NTAuthentication
repl.Publication = "Trk"
repl.Subscriber = "Trk"
repl.SubscriberConnectionString = "Data Source=""Program FilesTrk2007DefectTrk.sdf"";Max Database Size=128;Default Lock Escalation =100;"
LogMsg("Adding subscription...")
repl.AddSubscription(AddOption.CreateDatabase)
LogMsg("Synch...")
repl.Synchronize()
LogMsg("Cleanup...")
repl = Nothing
Catch err As SqlCeException
MessageBox.Show(err.ToString & " " & err.HResult & " " & err.NativeError & " " & err.Message & " " & err.InnerException.ToString)
Catch err2 As Exception
MessageBox.Show(err2.ToString & " " & err2.Message.ToString & " " & err2.InnerException.ToString)
End Try
End Sub

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Question-Advice Needed: Creating A System To Synch Handheld Entered Data With Main Database.

Jan 30, 2008

Greetings!

I would like to create a database for keeping track of payroll data for employees where the supervisors (job coaches) on our workshop floor can use a Pocket PC device to record the hourly employee data on the fly. Then at the end of the day, the supervisor can place the device in a cradle of some sort and synch the newly entered data into the main database.

I'm guessing that SQL Server Compact edition would be perfect for this type of task? Is that correct? Can someone give me recommendations on how to go about setting this up? What should I use as the main database? SQL Server? Access? Any advice is appreciated!

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&"Synch&" Table One SQL Server To Another Via DTS

Jan 18, 2008

I was hoping someone could help me with a question. I have a server that has a table with 5.6 million rows of data. I want to use DTS to transfer all the rows in the table from one SQL server to another via DTS, which I have got to work correctly. The problem I'm having is when I run the DTS job the 2nd time, it does all 5.6 million rows again and not just the deltas since the last DTS job. Is there anyway to use DTS to transfer the deltas (ex: 1000 rows since the last DTS job) from server 1 to server 2 ?

Thank you.

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Synch Table In Sql2005 With Table In Oracle

Jun 25, 2007

we have a table in an oracle database containing security information that is updated several times a day. the network connection into that oracle database is not always reliable. we would like to keep a copy of that table in a sql2005 database. the table will need to be refreshed 1/hr. it is a small table so performance won't be an issue.

would ssis be ideal for setting something like this up? i have never created an ssis package before (i'm an oracle dba crossing over). any pointers on how best to set this up?

thanks!
chris

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