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sp_changepublication_snapshot (Transact-SQL)

  • Článek

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 you configure 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 Configure SQL Server Database Engine for encrypting connections.

Transact-SQL syntax conventions

Syntax

sp_changepublication_snapshot
    [ @publication = ] N'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 = ] N'snapshot_job_name' ]
    [ , [ @publisher_security_mode = ] publisher_security_mode ]
    [ , [ @publisher_login = ] N'publisher_login' ]
    [ , [ @publisher_password = ] N'publisher_password' ]
    [ , [ @job_login = ] N'job_login' ]
    [ , [ @job_password = ] N'job_password' ]
    [ , [ @publisher = ] N'publisher' ]
[ ; ]

Arguments

[ @publication = ] N'publication'

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

[ @frequency_type = ] frequency_type

Specifies 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

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

The interval for @frequency_subday. @frequency_subday_interval is int, with a default of NULL.

[ @frequency_relative_interval = ] frequency_relative_interval

The date the Snapshot Agent runs. @frequency_relative_interval is int, with a default of NULL.

[ @frequency_recurrence_factor = ] frequency_recurrence_factor

The recurrence factor used by @frequency_type. @frequency_recurrence_factor is int, with a default of NULL.

[ @active_start_date = ] active_start_date

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

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

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

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 = ] N'snapshot_job_name'

The name of an existing Snapshot Agent job name if an existing job is being used. @snapshot_job_name is nvarchar(100), with a default of NULL.

[ @publisher_security_mode = ] publisher_security_mode

The security mode used by the agent when connecting to the Publisher. @publisher_security_mode is int, with a default of NULL. A value of 0 must be specified for non-SQL Server Publishers.

  • 0 specifies SQL Server authentication
  • 1 specifies Windows authentication

Important

When possible, use Windows authentication.

[ @publisher_login = ] N'publisher_login'

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 = ] N'publisher_password'

The password used when connecting to the Publisher. @publisher_password is sysname, with a default of NULL.

Important

Don't 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 = ] N'job_login'

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 can't be changed for a non-SQL Server publisher.

[ @job_password = ] N'job_password'

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 = ] N'publisher'

Specifies a non-SQL Server publisher. @publisher is sysname, with a default of NULL.

Note

@publisher shouldn't 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.

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