How To Do Bidirectional Replication In SQL Server 2005?

Oct 4, 2007


Greetings...
Presently, I am doing one way replication in SQL Server 2005. Server-A is local server at local place and Server-B is remote server at different place. There is not a problem in one way replication.
Server-A is Distributor and Server-B is Subscriber in one way replication.
I want to setup the following configuration using bidirectional replication (two way replication) on SQL Server 2005
And I am not able to do it. What should I do for this?
Should I use Merge Replication for bidirectional Replication.
Server-B is live server for users which cannot be stop for a moment. Server-A is local server which is live too.
Now please let me know how to do Bidirectional Replication. So whatever data in Server-B (Which is live) should replicate to Server-A or Vice versa ...
If we add some column into Server-B's table of Database what could be the effect on Server-A...

Please someone help me out into this.

ThanksRicky

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Bidirectional Replication In SQL Server 2005 SP2

Feb 25, 2008

Hi,

I have a problem configuring Bidirectional replication in SQL Server 2005 SP2. I configured Publication and Subscription on two different SQL 2005 instances on different machines (Station1SQL2005 and Station2SQL2005 respectively). Databases are DBTest1 in Station1 and DBTest2 in Station2. I have two tables one in DBTest1 and the other in DBTest2.

Script for the above configuration:

This below configuration does not work if i configure Publication and Subscription on the same machines

---*************************************************************************************************

For Station1:
IF EXISTS(SELECT * FROM sys.databases WHERE name = 'dbtest1')
DROP DATABASE dbtest1;

CREATE DATABASE dbtest1
go

--Create table named two_way_dbtest1 that have an IDENTITY column with the NOT FOR REPLICATION option set
USE dbtest1
go

IF EXISTS (SELECT * FROM sysobjects WHERE name LIKE 'two_way_dbtest1')
DROP TABLE two_way_dbtest1;
GO

CREATE TABLE two_way_dbtest1
(
pkcol INTEGER PRIMARY KEY NOT NULL,
intcol INTEGER IDENTITY(1,1) NOT FOR REPLICATION,
charcol CHAR(100),
timestampcol TIMESTAMP
)


/*Allocate a predetermined range of values to the primary key column
so that the values on the different servers are not in the same range.
For example, you can enforce 1-1000 as the key range for the two_way_dbtest1 table in the dbtest1 database,
and then enforce 1001 -2000 as the key range for two_way_dbtest2 table in the dbtest2 database.
To do so, use the following code:
*/
-- Constraint to enforce a range of values between 1 and 1000 in database dbtest1
USE dbtest1
go

ALTER TABLE
two_way_dbtest1
WITH NOCHECK
ADD CONSTRAINT
checkprimcol CHECK NOT FOR REPLICATION
(
pkcol BETWEEN 1 AND 1000
)
go


--Enable your server as the distributor, and then create a distribution database
--Ensure SQL Server Agent service is running before executing the below statement.
USE master
go
sp_adddistributor @distributor = 'Station1SQL2005'
go

--create a distribution database for the distributor
USE master
go
sp_adddistributiondb @database='distribution'
go

--Enable the computers running SQL Server that are participating in the replication as publishers
USE master
go

exec sp_adddistpublisher
@publisher = 'Station1SQL2005',
@distribution_db ='distribution',
@security_mode = 0,
@login = 'xxxxxxx',
@password = 'xxxxxxx',
@working_directory ='F:ReplicationReplication Working Directory'

--Enable the identified databases for replication
USE master
go

exec sp_replicationdboption N'dbtest1', N'publish', true
go

--Create the custom stored procedures in the dbtest1 database
USE dbtest1
go

-- INSERT Stored Procedure

CREATE PROCEDURE sp_ins_two_way_dbtest1
@pkcol int,
@intcol int,
@charcol char(100),
@timestampcol timestamp,
@rowidcol uniqueidentifier
AS
INSERT INTO two_way_dbtest1
(
pkcol,
intcol,
charcol
)
VALUES
(
@pkcol,
@intcol,
@charcol
)
go

--UPDATE Stored Procedure

CREATE PROCEDURE sp_upd_two_way_dbtest1
@pkcol int,
@intcol int,
@charcol char(100),
@timestampcol timestamp,
@rowidcol uniqueidentifier,
@old_pkcol int
as
DECLARE @x int
DECLARE @y int
DECLARE @z char(100)

SELECT
@x=pkcol,
@y=intcol,
@z=charcol
FROM
two_way_dbtest1
WHERE
pkcol = @pkcol



DELETE
two_way_dbtest1
WHERE
pkcol=@pkcol



INSERT INTO two_way_dbtest1
(
pkcol,
intcol,
charcol
)
VALUES
(
CASE ISNULL(@pkcol,0) WHEN 0 THEN @x ELSE @pkcol END,
CASE ISNULL(@intcol,0) WHEN 0 THEN @y ELSE @intcol END,
CASE ISNULL(@charcol,'N') WHEN 'N' THEN @z ELSE @charcol END
)
go

-- DELETE Stored Procedure

CREATE PROCEDURE sp_del_two_way_dbtest1
@old_pkcol int
AS
DELETE
two_way_dbtest1
WHERE
pkcol = @old_pkcol
go

--Create a transactional publication, and then add articles to the publication in both the dbtest1 and the dbtest2 databases
--In the database dbtest1.
USE dbtest1
go

-- Adding the transactional publication.
EXEC sp_addpublication
@publication = N'two_way_pub_dbtest1',
@restricted = N'false',
@sync_method = N'native',
@repl_freq = N'continuous',
@description = N'Transactional publication for database dbtest1.',
@status = N'active',
@allow_push = N'true',
@allow_pull = N'true',
@allow_anonymous = N'false',
@enabled_for_internet = N'false',
@independent_agent = N'false',
@immediate_sync = N'false',
@allow_sync_tran = N'true',
@autogen_sync_procs = N'true',
--To avoid expiry if there are 5 continuous holidays for a company. If 0, well-known subscriptions
--to the publication will never expire and be removed by the Expired Subscription Cleanup Agent.
@retention = 120
go

EXEC sp_addpublication_snapshot
@publication = N'two_way_pub_dbtest1',
@frequency_type = 4,
@frequency_interval = 1,
@frequency_relative_interval = 0,
@frequency_recurrence_factor = 1,
@frequency_subday = 2,
@frequency_subday_interval = 10,
@active_start_date = 20080225,
@active_end_date = 99991231,
@active_start_time_of_day = 070000,
@active_end_time_of_day = 235959
go

-- Adding the transactional articles.
EXEC sp_addarticle
@publication = N'two_way_pub_dbtest1',
@article = N'two_way_dbtest1',
@source_owner = N'dbo',
@source_object = N'two_way_dbtest1',
@destination_table = N'two_way_dbtest2',
@type = N'logbased',
@creation_script = null,
@description = 'two_way_dbtest1 table data will be replicated to two_way_dbtest2',
@pre_creation_cmd = N'drop',
@schema_option = 0x00000000000000F1,
@status = 16,
@vertical_partition = N'false',
@ins_cmd = N'CALL sp_ins_two_way_dbtest1',
@del_cmd = N'CALL sp_del_two_way_dbtest1',
@upd_cmd = N'CALL sp_upd_two_way_dbtest1',
@filter = null,
@sync_object = null,
@identityrangemanagementoption = 'manual'
go

/*In this scenario, the dbtest1 database is the central subscriber.
Create transactional subscriptions in the dbtest2 database that subscribe to the publication at dbtest1
and in the dbtest1 database that subscribe to the publication at dbtest2
*/
--Create all the subscriptions with the LOOPBACK_DETECTION option enabled
--Adding the transactional subscription in dbtest1.
USE dbtest1
go
EXEC sp_addsubscription
@publication = N'two_way_pub_dbtest1',
@article = N'all',
@subscriber = 'Station2SQL2005',
@destination_db = N'dbtest2',
@sync_type = N'none',
@status = N'active',
@update_mode = N'sync tran',
@loopback_detection = 'true'
go

EXEC sp_addpushsubscription_agent
@publication = N'two_way_pub_dbtest1',
@subscriber = 'Station2SQL2005',
@subscriber_db = N'dbtest2'
go

For Station2:
--Create database named test1
IF EXISTS(SELECT * FROM sys.databases WHERE name = 'dbtest2')
DROP DATABASE dbtest2
go

CREATE DATABASE dbtest2
go

--Create table named two_way_dbtest1 that have an IDENTITY column with the NOT FOR REPLICATION option set
USE dbtest2
go

IF EXISTS (SELECT * FROM sysobjects WHERE name LIKE 'two_way_dbtest2')
DROP TABLE two_way_dbtest2;
GO

CREATE TABLE two_way_dbtest2
(
pkcol INTEGER PRIMARY KEY NOT NULL,
intcol INTEGER IDENTITY(1,1) NOT FOR REPLICATION,
charcol CHAR(100),
timestampcol TIMESTAMP
)


/*Allocate a predetermined range of values to the primary key column
so that the values on the different servers are not in the same range.
For example, you can enforce 1-1000 as the key range for the two_way_dbtest1 table in the dbtest1 database,
and then enforce 1001 -2000 as the key range for two_way_dbtest2 table in the dbtest2 database.
To do so, use the following code:
*/
-- Constraint to enforce a range of values between 1 and 1000 in database dbtest1
USE dbtest2
go

ALTER TABLE
two_way_dbtest2
WITH NOCHECK
ADD CONSTRAINT
checkprimcol CHECK NOT FOR REPLICATION
(
pkcol BETWEEN 1 AND 1000
)
go


--Enable your server as the distributor, and then create a distribution database
--Ensure SQL Server Agent service is running before executing the below statement.
USE master
go
EXEC sp_adddistributor
@distributor = 'Station2SQL2005'
go

--create a distribution database for the distributor
USE master
go
sp_adddistributiondb @database='distribution'
go

--Enable the computers running SQL Server that are participating in the replication as publishers
USE master
go

exec sp_adddistpublisher
@publisher = 'Station2SQL2005',
@distribution_db ='distribution',
@security_mode = 0,
@login = 'xxxxxxxxx',
@password = 'xxxxxxx',
@working_directory ='E:ReplicationWorking Directory'

--Enable the identified databases for replication
USE master
go

exec sp_replicationdboption N'dbtest2', N'publish', true
go

--Create the custom stored procedures in the dbtest1 database
USE dbtest2
go

-- INSERT Stored Procedure

CREATE PROCEDURE sp_ins_two_way_dbtest2
@pkcol int,
@intcol int,
@charcol char(100),
@timestampcol timestamp,
@rowidcol uniqueidentifier
AS
INSERT INTO two_way_dbtest2
(
pkcol,
intcol,
charcol
)
VALUES
(
@pkcol,
@intcol,
@charcol
)
go

--UPDATE Stored Procedure

CREATE PROCEDURE sp_upd_two_way_dbtest2
@pkcol int,
@intcol int,
@charcol char(100),
@timestampcol timestamp,
@rowidcol uniqueidentifier,
@old_pkcol int
as
DECLARE @x int
DECLARE @y int
DECLARE @z char(100)

SELECT
@x=pkcol,
@y=intcol,
@z=charcol
FROM
two_way_dbtest2
WHERE
pkcol = @pkcol



DELETE
two_way_dbtest2
WHERE
pkcol=@pkcol



INSERT INTO two_way_dbtest2
(
pkcol,
intcol,
charcol
)
VALUES
(
CASE ISNULL(@pkcol,0) WHEN 0 THEN @x ELSE @pkcol END,
CASE ISNULL(@intcol,0) WHEN 0 THEN @y ELSE @intcol END,
CASE ISNULL(@charcol,'N') WHEN 'N' THEN @z ELSE @charcol END
)
go

-- DELETE Stored Procedure

CREATE PROCEDURE sp_del_two_way_dbtest2
@old_pkcol int
AS
DELETE
two_way_dbtest2
WHERE
pkcol = @old_pkcol
go

--Create a transactional publication, and then add articles to the publication in both the dbtest1 and the dbtest2 databases
--In the database dbtest1.
USE dbtest2
go

-- Adding the transactional publication.
EXEC sp_addpublication
@publication = N'two_way_pub_dbtest2',
@restricted = N'false',
@sync_method = N'native',
@repl_freq = N'continuous',
@description = N'Transactional publication for database dbtest2.',
@status = N'active',
@allow_push = N'true',
@allow_pull = N'true',
@allow_anonymous = N'false',
@enabled_for_internet = N'false',
@independent_agent = N'false',
@immediate_sync = N'false',
@allow_sync_tran = N'true',
@autogen_sync_procs = N'true',
--To avoid expiry if there are 5 continuous holidays for a company. If 0, well-known subscriptions
--to the publication will never expire and be removed by the Expired Subscription Cleanup Agent.
@retention = 120
go

EXEC sp_addpublication_snapshot
@publication = N'two_way_pub_dbtest2',
@frequency_type = 4,
@frequency_interval = 1,
@frequency_relative_interval = 0,
@frequency_recurrence_factor = 1,
@frequency_subday = 2,
@frequency_subday_interval = 10,
@active_start_date = 20080225,
@active_end_date = 99991231,
@active_start_time_of_day = 070000,
@active_end_time_of_day = 235959
go

-- Adding the transactional articles.
EXEC sp_addarticle
@publication = N'two_way_pub_dbtest2',
@article = N'two_way_dbtest2',
@source_owner = N'dbo',
@source_object = N'two_way_dbtest2',
@destination_table = N'two_way_dbtest1',
@type = N'logbased',
@creation_script = null,
@description = 'two_way_dbtest2 table data will be replicated to two_way_dbtest1',
@pre_creation_cmd = N'drop',
@schema_option = 0x00000000000000F1,
@status = 16,
@vertical_partition = N'false',
@ins_cmd = N'CALL sp_ins_two_way_dbtest2',
@del_cmd = N'CALL sp_del_two_way_dbtest2',
@upd_cmd = N'CALL sp_upd_two_way_dbtest2',
@filter = null,
@sync_object = null,
@identityrangemanagementoption = 'manual'
go

/*In this scenario, the dbtest1 database is the central subscriber.
Create transactional subscriptions in the dbtest2 database that subscribe to the publication at dbtest1
and in the dbtest1 database that subscribe to the publication at dbtest2
*/
--Create all the subscriptions with the LOOPBACK_DETECTION option enabled
--Adding the transactional subscription in dbtest1.
USE dbtest2
go
EXEC sp_addsubscription
@publication = N'two_way_pub_dbtest2',
@article = N'all',
@subscriber = 'Station1SQL2005',
@destination_db = N'dbtest1',
@sync_type = N'none',
@status = N'active',
@update_mode = N'sync tran',
@loopback_detection = 'true'
go

EXEC sp_addpushsubscription_agent
@publication = N'two_way_pub_dbtest2',
@subscriber = 'Station1SQL2005',
@subscriber_db = N'dbtest1'
go

---*************************************************************************************************
It would be grateful if somebody gives me a solution.

Thanks in advance.

Ravi.

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The source code that i use:



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The code is as follows:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlServerCe;

namespace DeviceApplication1
{
public partial class Form1 : Form
{
string filename = @".DbDotNetCF.sdf";

private DataSet dsJobLists;

public Form1()
{
InitializeComponent();
}

private void DeleteDB()
{
if (System.IO.File.Exists(filename))
{
System.IO.File.Delete(filename);
}
}

private void Sync()
{
SqlCeReplication repl = new SqlCeReplication();

repl.InternetUrl = @"http://localhost/WebsiteDotNetCF/sqlcesa30.dll";
repl.Publisher = @"RAHU";
repl.PublisherDatabase = @"DotNetCF";
repl.PublisherSecurityMode = SecurityType.NTAuthentication;
repl.Publication = @"PubDotNetCF";
repl.Subscriber = @"SubDotNetCF";
repl.SubscriberConnectionString = @"Data Source='" + filename + "';Max Database Size=128;Default Lock Escalation =100;";
try
{
if (!System.IO.File.Exists(filename))
{
repl.AddSubscription(AddOption.CreateDatabase);
}
repl.Synchronize();
}
catch (SqlCeException ex)
{
DisplaySQLCEErrors(ex);
}
finally
{
repl.Dispose();
}


// Display Same Data In Another DataGrid : dataGrid1
SqlCeConnection cn = new SqlCeConnection(@"Data Source='" + filename + "'");

SqlCeDataAdapter daJobLists = new SqlCeDataAdapter("SELECT JobListsID, JobID, PersonID FROM JobLists", cn);
if (dsJobLists == null)
{
dsJobLists = new DataSet();
}
try
{
dsJobLists.Clear();
daJobLists.Fill(dsJobLists, "JobLists");
dataGrid1.DataSource = dsJobLists.Tables["JobLists"];
}
catch (SqlCeException ex)
{
DisplaySQLCEErrors(ex);
}
}

private void DisplaySQLCEErrors(SqlCeException ex)
{
for (int i = 0; i < ex.Errors.Count; i++)
{
MessageBox.Show("Index #" + i.ToString() + ""
+ ex.Errors.Source + ""
+ "Error: " + ex.Errors.Message,
"Error No. " + ex.Errors.NativeError.ToString());
}
}

private void Form1_Load(object sender, EventArgs e)
{
Sync();
DeleteDB();

if (DbDotNetCFDataSetUtil.DesignerUtil.IsRunTime())
{
// TODO: Delete this line of code to remove the default AutoFill for 'dbDotNetCFDataSet.JobLists'.
this.jobListsTableAdapter.Fill(this.dbDotNetCFDataSet.JobLists);
}
}
}
}



I have created a merge replication correctlly( I suppose, there were no errros)
Please help

Your help will be appriciated

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Regards

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Hello All,
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-------------------------------------------------------------------------------------------------------------------------------
TITLE: Distributor Properties
------------------------------

An error occurred applying the changes to the Distributor.

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server+Management+Studio&ProdVer=9.00.3186.00&EvtSrc=Microsoft.SqlServer.Management.UI.DistributorPropertiesErrorSR&EvtID=ErrorApplyingDistributor&LinkId=20476

------------------------------
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------------------------------

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)

------------------------------

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ORA-06550: line 1, column 8:
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For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=09.00.3186&EvtSrc=MSSQLServer&EvtID=21651&LinkId=20476

--------------------------------------------------------------------------------------------------------------------------------------------------------
I searched the web and could not find any related info, where is this package can I run it manually?
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Hi there



im trying to set up a replication from a local server to a remote server.



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TITLE: New Publication Wizard
------------------------------

SQL Server is unable to connect to server 'SERVERX'.

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=9.00.2050.00&EvtSrc=Microsoft.SqlServer.Management.UI.PubWizardErrorSR&EvtID=CantConnect&LinkId=20476

------------------------------
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------------------------------
BUTTONS:

OK
------------------------------
and...



===================================

SQL Server is unable to connect to server 'SERVERX'. (New Publication Wizard)

------------------------------
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=9.00.2050.00&EvtSrc=Microsoft.SqlServer.Management.UI.PubWizardErrorSR&EvtID=CantConnect&LinkId=20476

===================================

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------------------------------
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at Microsoft.SqlServer.Management.UI.CreatePublicationWizard.PrepareToShow()

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Hi,

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Example of my table.sch file in my snapshot folder:
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go

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
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[AddOnInfo] [nvarchar](50) NULL,
[MaxClients] [int] NULL,
[AppName] [nvarchar](255) NULL,
[NbrDaysHistory] [int] NOT NULL CONSTRAINT [DF_Application_NbrDaysHistory]
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DEFAULT (10),
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[DF__Applicati__rowgu__4C364F0E] DEFAULT (newid())
)

GO
SET ANSI_NULLS ON

go

SET QUOTED_IDENTIFIER ON

go

ALTER TABLE [dbo].[Application] ADD CONSTRAINT [Application_PK] PRIMARY KEY
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[AppID]
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I've selected that I was setting up a merge replication that needs to be
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I've tried to set the compatibility level to 80SP3 manually but it remains
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I've tried everything.....

Does anyone have any ideas what could be causing this?

If I remove these lines from the sch file everything works jsut fine:

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON

go

SET QUOTED_IDENTIFIER ON

go

ALTER TABLE [dbo].[Application] ADD CONSTRAINT [Application_PK] PRIMARY KEY
CLUSTERED
(
[AppID]
)
GO

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Thanks,

Desperate Natasja

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PS:
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Thanks,

Steve.

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