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sp_resyncmergesubscription (Transact-SQL)

Resynchronizes a merge subscription to a known validation state that you specify. This allows you to force convergence or synchronize the subscription database to a specific point in time, such as the last time there was a successful validation, or to a specified date. The snapshot is not reapplied when resynchronizing a subscription using this method. This stored procedure is not used for snapshot replication subscriptions or transactional replication subscriptions. This stored procedure is executed at the Publisher, on the publication database, or at the Subscriber, on the subscription database.

Topic link icon Transact-SQL Syntax Conventions

sp_resyncmergesubscription [ [ @publisher = ] 'publisher' ]
    [ , [ @publisher_db = ] 'publisher_db' ]
        , [ @publication = ] 'publication' 
    [ , [ @subscriber = ] 'subscriber' ]
    [ , [ @subscriber_db = ] 'subscriber_db' ]
    [ , [ @resync_type = ] resync_type ]
    [ , [ @resync_date_str = ] resync_date_string ]

[ @publisher = ] 'publisher'

Is the name of the Publisher. publisher is sysname, with a default of NULL. A value of NULL is valid if the stored procedure is run at the Publisher. If the stored procedure is run at the Subscriber, a Publisher must be specified.

[ @publisher_db = ] 'publisher_db'

Is the name of the publication database. publisher_db is sysname, with a default of NULL. A value of NULL is valid if the stored procedure is run at the Publisher in the publication database. If the stored procedure is run at the Subscriber, a Publisher must be specified.

[ @publication = ] 'publication'

Is the name of the publication. publicationis sysname, with no default.

[ @subscriber = ] 'subscriber'

Is the name of the Subscriber. subscriber is sysname, with a default of NULL. A value of NULL is valid if the stored procedure is run at the Subscriber. If the stored procedure is run at the Publisher, a Subscriber must be specified.

[ @subscriber_db = ] 'subscriber_db'

Is the name of the subscription database. subscription_db is sysname, with a default of NULL. A value of NULL is valid if the stored procedure is run at the Subscriber in the subscription database. If the stored procedure is run at the Publisher, a Subscriber must be specified.

[ @resync_type = ] resync_type

Defines when the resynchronization should start at. resync_type is int, and can be one of the following values.

Value

Description

0

Synchronization starts from after the initial snapshot. This is the most resource-intensive option, since all changes since the initial snapshot are reapplied to the Subscriber.

1

Synchronization starts since last successful validation. All new or incomplete generations originating since the last successful validation are reapplied to the Subscriber.

2

Synchronization starts from the date given in resync_date_str. All new or incomplete generations originating after the date are reapplied to the Subscriber

[ @resync_date_str=] resync_date_string

Defines the date when the resynchronization should start at. resync_date_string is nvarchar(30), with a default of NULL. This parameter is used when the resync_type is a value of 2. The date given is converted to its equivalent datetime value.

0 (success) or 1 (failure)

sp_resyncmergesubscription is used in merge replication.

A value of 0 for the resync_type parameter, which reapplies all changes since the initial snapshot, may be resource-intensive, but possibly a lot less than a full reinitialization. For example, if the initial snapshot was delivered one month ago, this value would cause data from the past month to be reapplied. If the initial snapshot contained 1 gigabyte (GB) of data, but the amount of changes from the past month consisted of 2 megabytes (MB) of changed data, it would be more efficient to reapply the data than to reapply the full 1 GB snapshot.

Only members of the sysadmin fixed server role or the db_owner fixed database role can execute sp_resyncmergesubscription.

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