Can someone point me to a resource for Table Design Considerations for Merge Replication? I have an ASP.Net/SQL2K5 app that I need to run on disconnected machines, then allow dfor data sync through merge replication. I assume that the first step is getting my tables indexed in a replication friendlt manner?
Many Thanks to anyone who can point me in the right direction!
I need to copy all the data from all the tables in a database to a copy of this database on another server.
What feature of SSIS should I take advantage of to accomplish this?
We have an SLA for 8am, most times the data warehousing jobs complete at 8:05am. Adding an additional process/set of tasks to this package would obviously make matters so I'm trying to update/copy/replicate the data in the fastest manner. Typically we're talking 2 marts (10-20GB) with 2 large tables (5-10 mill records) and 20 marts (0.5 - 5 GB) with many more smaller tables (~40 tables with record count ranging from 1 to a million)
Additionally please indicate if the design/feature you suggest can handle (pushing schema changes and additions to the target server) schema changes or new tablesviews added to the source database.
My only idea so far...is using the import wizard (in Management Studio) to create an SSIS package (top copy all the tables from one server to another) and saving it to the server, Then executing this package after the job is complete. However this would not work if the schema of a table changed, or if a a table is added. Moreover I don't think I can edit this package in visual studio.
Hi all,
Can a publisher be mirrored? What are the implications, issues, gotchas? Transactional, Merge or Transactional w/ Updating Subscribers is what I'm considering.
Bottom line is I would like to use mirroring, but only one mirror will not suffice.
Thank you in advance.
Ray Nichols
Hi,How to add new table to merge replication ?When I do this in Enterpriise Manager i got an error:Server: Msg 2758, Level 16, State 1, Procedure sp_addmergearticle,Line 466RAISERROR could not locate entry for error 20085 in sysmessages.What is wrong ?Thank for any helpLuk
View 1 Replies View RelatedHi,
I have a table used in Merge Replication. If i add a new column in that table it gives me an error for tables in which either this table is a key or this table has key from other tables "Error validating the default for column 'rowguid'." Also for views i'm getting an error
"View 'dbo.vw_TestCaseBasic': indexes and schema binding will be removed."
If i proceed further i get an error and m not able to add the column.
"It is invalid to drop the default constraint on the rowguid column that is used by merge replication.
The schema change failed during execution of an internal replication procedure. For corrective action, see the other error messages that accompany this error message.
The transaction ended in the trigger. The batch has been aborted."
Is there any solution for the same?
Regards,
Ruchir Jain
Hi everbody,
Anybody tell me how to add new table in merge replication using Enterprise manager or T-sql.
Thanks in advance
Hi,
I tried with success to replicate a table_test_repl from my local server to an other server.
I used only one table for testing.
After that, i can't drop the 2 tables a_test_repl (on my local server and the other : I've got a message 'cannot drop the table because it is published for replication'
What can I do? I need absolutely to drop these tables to keep a clean model
and I can't drop the database and try again.
Thanks to your answers
Axel
Dear all participants,
I manage complete online system for two locations, connected via dialup lease line. I have to used merge replication for the same data should be at both locations. It is working fine, I don’t like disturbe it but current requirement is addition of two column in one table which one as also use in merge replication.
How I can add aforesaid columns in table x, column name c1 numeric , c2 character?
What is impact on replication?
Let me know step by step.
Thanks in advance.
Thanks R.Mall
One of the table that is in a merge replication somehow is missing anindex. Strangely, only the table in one of the subscriber of the mergereplication is missing the index; another subscriber and the publisherof the merge replication don't have this problem.How should I add the missing index back to that table? My understandingis that making structural change on a table that is inmerge-replication is different from making change on a table that isnot merge-replicated. For example, when we need to add a column into atable that is being merge-replicated, we must add the column bychanging the attributes in the properties of the published article(table) instead of simply using CREATE INDEX command. I am wonderingwhether there is a similar restriction on adding an index onto a tablethat is merge replicated.I have already added the index back to the table anyway. I am askinghere just in case doing this may get me into a problem later on.Thanks in advance for any info.Jay Chan
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I faced with strange problem.
From time to time, during syncronization I get the following errors at the subscriber:
ERROR: -2147200992
SOURCE: Merge Replication Provider
TEXT: The merge process could not store conflict information for article 'Products'. Check the publication properties to determine where conflicts records are stored. When troubleshooting, restart the synchronization with verbose history logging and specify an output file to which to write.
ERROR: 2812
SOURCE: OFF1SQLEXPRESS
TEXT: Could not find stored procedure 'MSmerge_cft_sp_49D28CEAFF8A4ACC5C5462B5027D4E4D'.
ERROR: -2147199481
SOURCE: Merge Replication Provider
TEXT: The Merge Agent was unable to update information about the last synchronization at the Subscriber. Ensure that the subscription exists at the Subscriber, and restart the Merge Agent.
After I refresh the snaphot at the publisher, these errors disappear and the syncronization is completed without any problem. And I can sync easy again week or two..
What is the problem?
What is the right solution?
Yep, I can continue to refresh the snapshot each time when the error appears, but..
maybe there is another approach?
Thanks in advance!
Paul
Hello, I'm developing application which monitors network packets. The monitoring data are saved into table. Monitoring table maintains the data for fixed quantum time,for example during one 1 hour. So, every minute before or after insert new data, I delete the time-expired data. I doubt that the endless delete operation would results in some problems(increasing index,etc..).
Is this mechanism safe to the dbms?
Aren't there round-robin(?) style table?
During merge replication initialization from SQL Server 2005 to SQL Server CE 3.5 on Windows Mobile 5.0
I am getting the following errors:
On Device
{"The table name is not valid. [ Token line number (if known) = 1,Token line offset (if known) = 21,Table name = COLLECTION ]"}
base {System.SystemException}: {"The table name is not valid. [ Token line number (if known) = 1,Token line offset (if known) = 21,Table name = COLLECTION ]"}
HResult: -2147217900
Message: "The table name is not valid. [ Token line number (if known) = 1,Token line offset (if known) = 21,Table name = COLLECTION ]"
NativeError: 26100
Source: "Microsoft SQL Server Compact"
{System.Data.SqlServerCe.SqlCeError: The SQL statement failed to execute. If this occurred while using merge replication, this is an internal error. If this occurred while using RDA, then the SQL statement is invalid either on the PULL statement or on the SubmitSQL statement. [ SQL statement = ALTER TABLE [dbo].[COLLECTION] ADD CONSTRAINT [PK_COLLECTION] PRIMARY KEY CLUSTERED ( [SERIAL_NUMBER], [STORE_CODE], [COLLECT_DATE] )WITH PAD_INDEX , FILLFACTOR = 90 ]}
Source: "Microsoft SQL Server Compact"
Server Logged:
...
2008/04/20 20:03:16 Thread=EA0 RSCB=5 Command=SCHK Hr=00000000 SyncCheck responding 0
2008/04/20 20:03:17 Thread=B90 RSCB=5 Command=OPNR Hr=00000000 End Of Data Set 1
2008/04/20 20:03:17 Thread=B90 RSCB=5 Command=OPNR Hr=00000000 Responding to Fetch, bytes = 50259
2008/04/20 20:03:17 Thread=970 RSCB=5 Command=CLOS Hr=00000000 Total Compressed bytes out = 50259
2008/04/20 20:03:17 Thread=970 RSCB=5 Command=CLOS Hr=00000000 Total Uncompressed bytes out = 390254
2008/04/20 20:03:17 Thread=970 RSCB=5 Command=CLOS Hr=00000000 Removing this RSCB 0
2008/04/20 20:03:19 Hr=00000000 Compression Level set to 1
2008/04/20 20:03:19 Hr=80004005 ACK:Error for DistributorSessionID = 80
2008/04/20 20:03:19 Hr=80004005 The SQL statement failed to execute. If this occurred while using merge replication, this is an internal error. If this occurred while using RDA, then the SQL statement is invalid either on the PULL statement or on the SubmitSQL statement. [,,,SQL stateme 28560
The same tables in a different on a different SQL box (test) replicate fine, but on this box (production) they do not. Any idea what would be the difference in the two environments?
I suspect that the "dbo." part in the "alter table" is what it is messing up on... how can I tell SQL CE not to include that schema prefix?
Thanks
Suppose your using Merge Replication.
2 Users in 2 locations issue updates to the same table. 1 updating 1 column and the other updating another column. Now in reality the actual Stored Procedure issuing the update statement is passed in all the possible columns that could change and builds an update statement that updates all columns even the ones that havent changed.
Will this break Merge Replications conflict tracking? Or does SQL Server 2005 Merge Replication pickup that in reality the 2 updates only in reality changed the values in 2 columns.
What is the main difference between snapshot and transactional and merge replication?
View 5 Replies View RelatedHi all,
I know that adding a column using ALTER TABLE to add a column automatically allows SQLSERVER 2005 to replicate the schema changes to the subscribers, however, I would like to add a new column to an existing article that is being used for merge replication, however, I don't want this column to be replicated. Re-initialising the subscriptions is not a option. Help would be appreciated.
I am using SQLSERVER 2005 (SP1).
In my enviornment i have one database with 6 ndf files and 5 ldf files and one mdf file.Actuvally what i am looking is to merge 6 ndf files into one ndf file and 5 ldf files into one ldf file.is it possible to do like this? , i tried using MOVE and TO option while backup is restorating but getting below error messages.
ERROR:
Msg 3176, Level 16, State 1, Line 4
File 'J:NDFabc.ndf' is claimed by 'Finance_data2'(4) and 'Finance_data1'(3). The WITH MOVE clause can be used to relocate one or more files.
This website describes how Merge statements should be optimized by the use of indexes on the target?source tables: [URL]..... It says that a clustered index should be created on the join column in the target and a unique covering index on the source table.Â
I have read in other articles that insert/delete/update statements perform worse on tables with clustered indexes as the leaf level pages will have to be reorganized.
Why in the case of Merge statement having a indexes actually improve the performance of insert/delete/update statements?
I am working on bringing our disaster recovery site to be a live site. Currently we replicate to one of out servers (server B) with merge replication (from server A). Server A also does one way transactional replication form some table to several other servers including servers at the DR site.
This setup is not going to be fast enough for what we need so I am wondering if a table is receiving merge replication will the merge updates also replicate down the transaction path??
Example...
Server B update a row and merges to Server A. With this update them replicate (via transactional) to Server C??
thanks...
When I'm designing a merge join in BIDs, in particular a large one with say a couple hundred columns on the left part of the join (and only 1-2 columns on the right side), it takes 2-3 minutes to close and I notice it pegs the CPU on the computer during that time. I'm developing on a quad dual core 64 bit machine with 32 Gb of RAM.
What makes this problematic is if you have a several merge joins in the pipe, and you do something like add a column. Then you have to re-open every merge join to include that column, waiting 2-3 minutes for it to close. So adding a column to a pipe with 10 merger joins will take 20-30 minutes, most of which is just waiting for edit boxes to close. I've tried the options of "work offline" and setting the ValidateExternalData to false in the merge join property but those don't help. Anyone encounter this problem?
Thanks,
Lee
Hi everbody,
I setup the Merge Replication , it is working perfectly. But i have one problem now it is updating both ways. I nedd one way. Any body tell me which parameter i have to change.
Thanks in advance
Hi,
My production box is running on NT4.0,SP6, SQL Server7.0,SP2. We implemented Merge replication. Working fine last 7 months. Last weekend i disabled replication, Successfully removed Distributor and Publishor. After that try add new fileds but won't allowed me. It's give the error message. I Also found Some Conflict_tables found almost 20 tables. All system Tables. Can delete these these tables, if i delete any problem my database.
I added filelds many times but this time i got errors.
Please help me anybody.
I have just installed replication on our production server to Merge Replicate with a Laptop server that will travel from time to time. I have now noticed that we cannot add or change any fields or attributes on the tables which are being replicated (which are all tables in the DB). This is a problem because we are changing and adding columns all of the time. Is there a way around this issue like shutting down the replication service or something? I have been unsuccessful in finding a way around this other than removing replication while we make changes.
Thank you in advance for any help!
I have implemented a Merger replication on our development server and I get a fillowing error when I try to update one of the table in publisher.
"Transaction cannot start while in firehose mode"
What does this mean.
Thank You,
John
Hi,
I read some where that replication has two types conflict resolution, 1. row based and 2. Column based...
If I am right...
Can any one point me how to find out this option and how to set it up....
Thanks,
Mohammed.
Hi all,
I have a merge replication going between 4 servers. The problem is when ever I do some BCP transfer to one of the tables in one of the servers. It puts the data in that table. But that Data does not get replicated to any other server like it should.
Please Advice on what to do. Is there any option I am forgetting to set or something.
Thank you for all your time in advance.
Aziz
I have successfully tried merge replication on single server with 2 databases.
now i want to do the same with different servers,
when i create pull subcription on server 2 which user account should I use?
it is giving log in failure
i tried using windows admin account and also the 'sa' account.
please help me out
thanks
Hi All,
I have posted this earlier and I am re-posting it simplifying what I had said.
The scenario is:
I have two sql server database instances with the same database schema and all. However, both of them have different data. I have not set them for replication at all. Now, I want to do merge replication between them such that the data between them could be syncronized.
When I do pull merge subscription I have two choices -
1.Bringing schema and data to subscriber from publisher
2.Not bringing the schema and data from publisher to subscriber.
Obviously, I chose the second choice. But upon syncronizing I dont see any data from publisher coming to subscriber and vice-versa. If I add new data to publisher and do syncronization, I can see ONLY the new data created after the replication setup in subscriber. If I add new data to subscriber and do syncronization then the new data is removed from subscriber and not propagated to publisher.
Is there any way I can make this work??
Niben
Hi,
I have just set up Merge replication, I have two servers, server A and server B, the merge replication worked successfully but I don't quite sure which databases should or should not replicated? If not, what other methods should I use?
I would really appreciated any comments or advice out there!
-whitebelt
I had set up merge replication. I got these error messages where replications starts "Column names in each table must be unique. Column name 'PubID' in table 'bonflict_DBName_PHP_Data_Publications' is specified more than once "
PHP_Data_Publications table defind as:
CREATE TABLE [dbo].[PHP_Data_Publications] (
[PHP_Pub_ID] [uniqueidentifier] NOT NULL ,
[PHP_Data_ID] [uniqueidentifier] NOT NULL ,
[PubID] [uniqueidentifier] NOT NULL ,
[UserID] [uniqueidentifier] NOT NULL ,
[Username] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[Publication] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[Pub_Year] [datetime] NULL ,
[Pub_Name] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[rowguid] uniqueidentifier ROWGUIDCOL NOT NULL
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[PHP_Data_Publications] WITH NOCHECK ADD
CONSTRAINT [DF__PHP_Data___rowgu__01E91FA0] DEFAULT (newid()) FOR [rowguid]
GO
CREATE UNIQUE INDEX [index_1466488303] ON [dbo].[PHP_Data_Publications]([rowguid]) ON [PRIMARY]
GO
Thanks,
Chanthol
Hi
Is it possible to modify or add new fields in sql 2000 when the instance
became publisher ? I tried it several times but it failed. I access microsoft website but i did not help.
Thanks
Pheckz
Hi everbody,
Anybody tell me about implementation of oneway merge replication.
Thanks
Hi everyone
SQL Server BOL says merge replication can be done in only one direction. But my understanding is Merge replication happens in both ways between publisher and subscriber.
How can i allow data movement from only wince sql ce subscribers and not from publisher running sql 2000 and win 2k.
Please reply immediately bcoz i require a solution which has to be implemented very soon.
Thanks in advance
Satheesh