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sp_changemergepublication (Transact-SQL)

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Applies to: SQL Server

Changes the properties of a merge publication. This stored procedure is executed at the Publisher on the publication database.

Transact-SQL syntax conventions

Syntax

sp_changemergepublication
    [ @publication = ] N'publication'
    [ , [ @property = ] N'property' ]
    [ , [ @value = ] N'value' ]
    [ , [ @force_invalidate_snapshot = ] force_invalidate_snapshot ]
    [ , [ @force_reinit_subscription = ] force_reinit_subscription ]
[ ; ]

Arguments

[ @publication = ] N'publication'

The name of the publication. @publication is sysname, with no default.

[ @property = ] N'property'

The property to change for the given publication. @property is sysname, and can be one of the values listed in the table that follows.

[ @value = ] N'value'

The new value for the specified property. @value is nvarchar(255), with a default of NULL.

, and can be one of the values listed in the table that follows.

This table describes the properties of the publication that can be changed, and describes restrictions on the values for those properties.

Property Value Description
allow_anonymous true Anonymous subscriptions are allowed.
false Anonymous subscriptions aren't allowed.
allow_partition_realignment true Deletes are sent to the Subscriber to reflect the results of a partition change by removing data that is no longer part of the Subscriber's partition. This is the default behavior.
false Data from an old partition is left on the Subscriber, where changes made to this data on the Publisher don't replicate to this Subscriber. Instead, changes that are made on the Subscriber replicate to the Publisher. This is used to retain data in a subscription from an old partition when the data has to be accessible for historical purposes.
allow_pull true Pull subscriptions are allowed for the given publication.
false Pull subscriptions aren't allowed for the given publication.
allow_push true Push subscriptions are allowed for the given publication.
false Push subscriptions aren't allowed for the given publication.
allow_subscriber_initiated_snapshot true Subscriber can initiate the snapshot process.
false Subscriber can't initiate the snapshot process.
allow_subscription_copy true You can copy the subscription databases that subscribe to this publication.
false You can't copy the subscription databases that subscribe to this publication.
allow_synctoalternate true Allows an alternative synchronization partner to synchronize with this Publisher.
false Doesn't allow an alternative synchronization partner to synchronize with this Publisher.
allow_web_synchronization true Subscriptions can be synchronized over HTTPS.
false Subscriptions can't be synchronized over HTTPS.
alt_snapshot_folder Specifies the location of the alternative folder for the snapshot.
automatic_reinitialization_policy 1 Changes are uploaded from the Subscriber before the subscription is reinitialized.
0 The subscription is reinitialized without first uploading changes.
centralized_conflicts true All conflict records are stored at the Publisher. If you change this property, existing Subscribers must be reinitialized.
false Conflict records are stored at the server that lost in the conflict resolution. If you change this property, existing Subscribers must be reinitialized.
compress_snapshot true Snapshot in an alternative snapshot folder is compressed into the CAB format. The snapshot in the default snapshot folder can't be compressed. Changing this property requires a new snapshot.
false By default, the snapshot isn't compressed. Changing this property requires a new snapshot.
conflict_logging publisher Conflict records are stored at the Publisher.
subscriber Conflict records are stored at the Subscriber that caused the conflict. Not supported for SQL Server Compact Subscribers.
both Conflict records are stored at both the Publisher and Subscriber.
conflict_retention An int that specifies the retention period, in days, for which conflicts are retained. Setting conflict_retention to 0 means no conflict cleanup is needed.
description Description of the publication.
dynamic_filters true Publication is filtered based on a dynamic clause.
false Publication isn't filtered dynamically.
enabled_for_internet true Publication is enabled for the Internet. File Transfer Protocol (FTP) can be used to transfer the snapshot files to a Subscriber. The synchronization files for the publication are put into the C:\Program Files\Microsoft SQL Server\MSSQL\Repldata\ftp directory.
false Publication isn't enabled for the Internet.
ftp_address The network address of the FTP service for the Distributor. Specifies where publication snapshot files are stored.
ftp_login The user name that is used to connect to the FTP service.
ftp_password The user password that is used to connect to the FTP service.
ftp_port The port number of the FTP service for the Distributor. Specifies the TCP port number of the FTP site where the publication snapshot files are stored.
ftp_subdirectory Specifies where the snapshot files are created if the publication supports propagating snapshots by using FTP.
generation_leveling_threshold int Specifies the number of changes that are contained in a generation. A generation is a collection of changes that are delivered to a Publisher or Subscriber.
keep_partition_changes true Synchronization is optimized, and only Subscribers that have rows in the changed partitions are affected. Changing this property requires a new snapshot.
false Synchronization isn't optimized, and the partitions that are sent to Subscribers are verified when data changes in a partition. Changing this property requires a new snapshot.
max_concurrent_merge An int that represents the maximum number of concurrent merge processes that can be run against a publication. If 0, there's no limit. If more than this number of merge processes are scheduled to run at the same time, the excess jobs are put into a queue until a currentlmerge process finishes.
max_concurrent_dynamic_snapshots An int that represents the maximum number of snapshot sessions to generate a filtered data snapshot that can concurrently run against a merge publication that uses parameterized row filters. If 0, there's no limit. If more than this number of snapshot processes are scheduled to run at the same time, the excess jobs are put into a queue until a current merge process finishes.
post_snapshot_script Specifies a pointer to an .sql file location. The Distribution Agent or Merge Agent runs the post-snapshot script after all the other replicated object scripts and data have been applied during an initial synchronization. Changing this property requires a new snapshot.
pre_snapshot_script Specifies a pointer to an .sql file location. The Merge Agent runs the pre-snapshot script before any of the replicated object scripts when applying a snapshot at a Subscriber. Changing this property requires a new snapshot.
publication_compatibility_level 100RTM SQL Server 2008 (10.0.x)
90RTM SQL Server 2005 (9.x)
publish_to_activedirectory true This parameter is deprecated and is maintained for backward compatibility of scripts. You can no longer add publication information to Active Directory.
false Removes the publication information from Active Directory.
replicate_ddl 1 Data Definition Language (DDL) statements that are executed at the Publisher are replicated.
0 DDL statements aren't replicated.
retention An int that represents the number of retention_period_unit units for which to save changes for the given publication. If the subscription isn't synchronized within the retention period, and the pending changes it received were removed by a clean-up operation at the Distributor, the subscription expires and must be reinitialized. The maximum allowable retention period is the number of days between December 31, 9999, and the current date.

Note: The retention period for merge publications has a 24 hour grace period to accommodate Subscribers in different time zones.
retention_period_unit day Retention period is specified in days.
week Retention period is specified in weeks.
month Retention period is specified in months.
year Retention period is specified in years.
snapshot_in_defaultfolder true Snapshot files are stored in the default snapshot folder.
false Snapshot files are stored in the alternative location that is specified by alt_snapshot_folder. This combination specifies that the snapshot files are stored in both the default and alternative locations.
snapshot_ready true Snapshot for the publication is available.
false Snapshot for the publication isn't available.
status active Publication is in an active state.
inactive Publication is in an inactive state.
sync_mode native or

bcp native		 Native-mode bulk-copy program output of all tables is used for the initial snapshot.
character

or bcp character		 Character-mode bulk-copy program output of all tables is used for the initial snapshot, which is required for all non-SQL Server Subscribers.
use_partition_groups

Note: After using partition groups, if you to revert to using setupbelongs, and set use_partition_groups=false in changemergearticle, this might not be correctly reflected after a snapshot is taken. The triggers generated by snapshot are compliant with partition groups.

The workaround to this scenario is to set the status to Inactive, modify the use_partition_groups, and then set status to Active.		 true Publication uses precomputed partitions.
false Publication doesn't use precomputed partitions.
validate_subscriber_info Lists the functions that are being used to retrieve Subscriber information. Then, validates the dynamic filtering criteria used for the Subscriber to verify that the information is partitioned consistently.
web_synchronization_url Default value of the Internet URL used for Web synchronization.
NULL (default) Returns the list of supported values for @property.

[ @force_invalidate_snapshot = ] force_invalidate_snapshot

Acknowledges that the action taken by this stored procedure might invalidate an existing snapshot. @force_invalidate_snapshot is bit, with a default of 0.

  • 0 specifies that changing the publication doesn't invalidate the snapshot. If the stored procedure detects that the change does require a new snapshot, an error occurs and no changes are made.

  • 1 specifies that changing the publication might invalidate the snapshot. If there are existing subscriptions that require a new snapshot, gives permission for the existing snapshot to be marked as obsolete and for a new snapshot to be generated.

See the Remarks section for the properties that, when changed, require a new snapshot to be generated.

[ @force_reinit_subscription = ] force_reinit_subscription

Acknowledges that the action taken by this stored procedure might require existing subscriptions to be reinitialized. @force_reinit_subscription is bit, with a default of 0.

  • 0 specifies that changing the publication doesn't require that subscriptions be reinitialized. If the stored procedure detects that the change requires existing subscriptions to be reinitialized, an error occurs and no changes are made.

  • 1 means that changes to the publication reinitialize existing subscriptions, and gives permission for the subscription reinitialization to occur.

See the Remarks section for the properties that, when changed, require that all existing subscriptions be reinitialized.

Return code values

0 (success) or 1 (failure).

Remarks

sp_changemergepublication is used in merge replication.

Changing the following properties requires that a new snapshot is generated. You must specify a value of 1 for the @force_invalidate_snapshot parameter.

  • alt_snapshot_folder
  • compress_snapshot
  • dynamic_filters
  • ftp_address
  • ftp_login
  • ftp_password
  • ftp_port
  • ftp_subdirectory
  • post_snapshot_script
  • publication_compatibility_level (to 80SP3 only)
  • pre_snapshot_script
  • snapshot_in_defaultfolder
  • sync_mode
  • use_partition_groups

Changing the following properties requires that existing subscriptions be reinitialized. You must specify a value of 1 for the @force_reinit_subscription parameter.

  • dynamic_filters
  • validate_subscriber_info

To list publication objects to Active Directory by using publish_to_active_directory, the SQL Server object must already be created in Active Directory.

Examples

DECLARE @publication AS sysname;
SET @publication = N'AdvWorksSalesOrdersMerge'; 

-- Disable DDL replication for the publication.
USE [AdventureWorks2022]
EXEC sp_changemergepublication 
  @publication = @publication, 
  @property = N'replicate_ddl', 
  @value = 0,
  @force_invalidate_snapshot = 0, 
  @force_reinit_subscription = 0;
GO

Permissions

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

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