sp_changepublication_snapshot (Transact-SQL)
Applies to: 
SQL Server
Azure SQL Managed Instance
Changes properties of the Snapshot Agent for the specified publication. This stored procedure is executed at the Publisher on the publication database.
Important
When configuring a Publisher with a remote Distributor, the values supplied for all parameters, including job_login and job_password, are sent to the Distributor as plain text. You should encrypt the connection between the Publisher and its remote Distributor before executing this stored procedure. For more information, see Enable Encrypted Connections to the Database Engine (SQL Server Configuration Manager).
Transact-SQL syntax conventions
Syntax
sp_changepublication_snapshot [ @publication= ] 'publication'
[ , [ @frequency_type= ] frequency_type ]
[ , [ @frequency_interval= ] frequency_interval ]
[ , [ @frequency_subday= ] frequency_subday ]
[ , [ @frequency_subday_interval= ] frequency_subday_interval ]
[ , [ @frequency_relative_interval= ] frequency_relative_interval ]
[ , [ @frequency_recurrence_factor= ] frequency_recurrence_factor ]
[ , [ @active_start_date= ] active_start_date ]
[ , [ @active_end_date= ] active_end_date ]
[ , [ @active_start_time_of_day= ] active_start_time_of_day ]
[ , [ @active_end_time_of_day= ] active_end_time_of_day ]
[ , [ @snapshot_job_name = ] 'snapshot_agent_name' ]
[ , [ @publisher_security_mode = ] publisher_security_mode ]
[ , [ @publisher_login = ] 'publisher_login' ]
[ , [ @publisher_password = ] 'publisher_password' ]
[ , [ @job_login = ] 'job_login' ]
[ , [ @job_password = ] 'job_password' ]
[ , [ @publisher = ] 'publisher' ]
Arguments
[ @publication = ] 'publication'
Is the name of the publication. publication is sysname, with no default.
[ @frequency_type = ] frequency_type
Is the frequency with which to schedule the agent. frequency_type is int, and can be one of the following values.
| Value | Description |
|---|---|
| 1 | One time |
| 2 | On demand |
| 4 | Daily |
| 8 | Weekly |
| 16 | Monthly |
| 32 | Monthly relative |
| 64 | Autostart |
| 128 | Recurring |
| NULL (default) |
[ @frequency_interval = ] frequency_interval
Specifies the days that the agent runs. frequency_interval is int, and can be one of the following values.
| Value | Description |
|---|---|
| 1 | Sunday |
| 2 | Monday |
| 3 | Tuesday |
| 4 | Wednesday |
| 5 | Thursday |
| 6 | Friday |
| 7 | Saturday |
| 8 | Day |
| 9 | Weekdays |
| 10 | Weekend days |
| NULL (default) |
[ @frequency_subday = ] frequency_subday
Is the units for freq_subday_interval. frequency_subday is int, and can be one of these values.
| Value | Description |
|---|---|
| 1 | Once |
| 2 | Second |
| 4 | Minute |
| 8 | Hour |
| NULL (default) |
[ @frequency_subday_interval = ] frequency_subday_interval
Is the interval for frequency_subday. frequency_subday_interval is int, with a default of NULL.
[ @frequency_relative_interval = ] frequency_relative_interval
Is the date the Snapshot Agent runs. frequency_relative_interval is int, with a default of NULL.
[ @frequency_recurrence_factor = ] frequency_recurrence_factor
Is the recurrence factor used by frequency_type. frequency_recurrence_factor is int, with a default of NULL.
[ @active_start_date = ] active_start_date
Is the date when the Snapshot Agent is first scheduled, formatted as yyyyMMdd. active_start_date is int, with a default of NULL.
[ @active_end_date = ] active_end_date
Is the date when the Snapshot Agent stops being scheduled, formatted as yyyyMMdd. active_end_date is int, with a default of NULL.
[ @active_start_time_of_day = ] active_start_time_of_day
Is the time of day when the Snapshot Agent is first scheduled, formatted as HHmmss. active_start_time_of_day is int, with a default of NULL.
[ @active_end_time_of_day = ] active_end_time_of_day
Is the time of day when the Snapshot Agent stops being scheduled, formatted as HHmmss. active_end_time_of_day is int, with a default of NULL.
[ @snapshot_job_name = ] 'snapshot_agent_name'
Is the name of an existing Snapshot Agent job name if an existing job is being used. snapshot_agent_name is nvarchar(100) with a default value of NULL.
[ @publisher_security_mode = ] publisher_security_mode
Is the security mode used by the agent when connecting to the Publisher. publisher_security_mode is smallint, with a default of NULL. 0 specifies SQL Server Authentication, and 1 specifies Windows Authentication. A value of 0 must be specified for non- SQL Server Publishers.
Important
When possible, use Windows authentication.
[ @publisher_login = ] 'publisher_login'
Is the login used when connecting to the Publisher. publisher_login is sysname, with a default of NULL. publisher_login must be specified when publisher_security_mode is 0. If publisher_login is NULL and publisher_security_mode is 1, then the Windows account specified in job_login is used when connecting to the Publisher.
[ @publisher_password = ] 'publisher_password'
Is the password used when connecting to the Publisher. publisher_password is sysname, with a default of NULL.
Important
Do not use a blank password. Use a strong password. When possible, prompt users to enter security credentials at runtime. If you must store credentials in a script file, you must secure the file to prevent unauthorized access.
[ @job_login = ] 'job_login'
Is the login for the Windows account under which the agent runs. job_login is nvarchar(257), with a default of NULL. This Windows account is always used for agent connections to the Distributor. You must supply this parameter when creating a new Snapshot Agent job. This cannot be changed for a non- SQL Server publisher.
[ @job_password = ] 'job_password'
Is the password for the Windows account under which the agent runs. job_password is sysname, with a default of NULL. You must supply this parameter when creating a new Snapshot Agent job.
Important
When possible, prompt users to enter security credentials at runtime. If you must store credentials in a script file, you must secure the file to prevent unauthorized access.
[ @publisher = ] 'publisher'
Specifies a non- SQL Server publisher. publisher is sysname, with a default of NULL.
Note
publisher should not be used when creating a Snapshot Agent at a SQL Server Publisher.
Return Code Values
0 (success) or 1 (failure)
Remarks
sp_changepublication_snapshot is used in snapshot replication, transactional replication, and merge replication.
Permissions
Only members of the sysadmin fixed server role or db_owner fixed database role can execute sp_changepublication_snapshot.
See Also
View and Modify Publication Properties
Change Publication and Article Properties
sp_addpublication_snapshot (Transact-SQL)
System Stored Procedures (Transact-SQL)
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