sp_addmergepartition (Transact-SQL)
Crea una partición filtrada dinámicamente para una suscripción que está filtrada por los valores de HOST_NAME o SUSER_SNAME en el suscriptor. Este procedimiento almacenado se ejecuta en el publicador en la base de datos que se está publicando y se utiliza para generar particiones manualmente.
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Sintaxis
sp_addmergepartition [ @publication = ] 'publication'
, [ @suser_sname = ] 'suser_sname'
, [ @host_name = ] 'host_name'
Argumentos
[ @publication= ] 'publication'
Es la publicación de mezcla en la que se va a crear la partición. publication es de tipo sysname y no tiene ningún valor predeterminado. Si se especifica suser_sname, el valor de hostname debe ser NULL.[ @suser_sname= ] 'suser_sname'
Es el valor utilizado al crear la partición para una suscripción que está filtrada por el valor de la función SUSER_SNAME en el suscriptor. suser_sname es de tipo sysname y no tiene ningún valor predeterminado.[ @host_name= ] 'host_name'
Es el valor utilizado al crear la partición para una suscripción que está filtrada por el valor de la función HOST_NAME en el suscriptor. host_name es de tipo sysname y no tiene ningún valor predeterminado.
Valores de código de retorno
0 (correcto) o 1 (error)
Notas
sp_addmergepartition se utiliza en la replicación de mezcla.
Ejemplo
-- To avoid storing the login and password in the script file, the value
-- is passed into SQLCMD as a scripting variable. For information about
-- how to use scripting variables on the command line and in SQL Server
-- Management Studio, see the "Executing Replication Scripts" section in
-- the topic "Programming Replication Using System Stored Procedures".
--Add a new merge publication.
DECLARE @publicationdb AS sysname;
DECLARE @publication AS sysname;
DECLARE @table1 AS sysname;
DECLARE @table2 AS sysname;
DECLARE @filter AS sysname;
DECLARE @schema_hr AS sysname;
DECLARE @schema_sales AS sysname;
SET @publicationdb = N'AdventureWorks';
SET @publication = N'AdvWorksSalesPersonMerge';
SET @table1 = N'Employee';
SET @table2 = N'SalesPerson';
SET @filter = N'SalesPerson_Employee';
SET @schema_hr = N'HumanResources';
SET @schema_sales = N'Sales';
USE [AdventureWorks];
-- Enable AdventureWorks for merge replication.
EXEC sp_replicationdboption
@dbname = @publicationdb,
@optname = N'merge publish',
@value = N'true';
-- Create new merge publication.
EXEC sp_addmergepublication
@publication = @publication,
@description = N'Merge publication of AdventureWorks.',
@allow_subscriber_initiated_snapshot = N'false';
-- Create a new snapshot job for the publication, using the
-- default schedule. Pass credentials at runtime using
-- sqlcmd scripting variables.
EXEC sp_addpublication_snapshot
@publication = @publication,
@job_login = $(Login),
@job_password = $(password);
-- Add an article for the Employee table,
-- which is horizontally partitioned using
-- a parameterized row filter.
EXEC sp_addmergearticle
@publication = @publication,
@article = @table1,
@source_owner = @schema_hr,
@source_object = @table1,
@type = N'table',
@description = 'contains employee information',
@subset_filterclause = N'[LoginID] = HOST_NAME()';
-- Add an article for the SalesPerson table,
-- which is partitioned based on a join filter.
EXEC sp_addmergearticle
@publication = @publication,
@article = @table2,
@source_owner = @schema_sales,
@source_object = @table2,
@type = N'table',
@description = 'contains customer information';
-- Add a join filter between the two articles.
EXEC sp_addmergefilter
@publication = @publication,
@article = @table1,
@filtername = @filter,
@join_articlename = @table2,
@join_filterclause = N'[Employee].[EmployeeID] = [SalesPerson].[SalesPersonID]',
@join_unique_key = 1,
@filter_type = 1;
GO
-- Start the snapshot agent job.
DECLARE @publication AS sysname;
SET @publication = N'AdvWorksSalesPersonMerge';
EXEC sp_startpublication_snapshot
@publication = @publication;
GO
PRINT '*** Waiting for the initial snapshot.';
GO
-- Create a temporary table to store the filtered data snapshot
-- job information.
CREATE TABLE #temp (id int,
job_name sysname,
job_id uniqueidentifier,
dynamic_filter_login sysname NULL,
dynamic_filter_hostname sysname NULL,
dynamic_snapshot_location nvarchar(255),
frequency_type int,
frequency_interval int,
frequency_subday_type int,
frequency_subday_interval int,
frequency_relative_interval int,
frequency_recurrence_factor int,
active_start_date int,
active_end_date int,
active_start_time int,
active_end_time int
)
-- Create each snapshot for a partition
-- The initial snapshot must already be generated.
DECLARE @publication AS sysname;
DECLARE @jobname AS sysname
DECLARE @hostname AS sysname
SET @publication = N'AdvWorksSalesPersonMerge';
SET @hostname = N'adventure-works\Fernando';
WHILE NOT EXISTS(SELECT * FROM sysmergepublications
WHERE [name] = @publication
AND snapshot_ready = 1)
BEGIN
WAITFOR DELAY '00:00:05'
END
-- Create a data partition by overriding HOST_NAME().
EXEC sp_addmergepartition
@publication = @publication,
@host_name = @hostname;
-- Create the filtered data snapshot job, and use the returned
-- information to start the job.
EXEC sp_adddynamicsnapshot_job
@publication = @publication,
@host_name = @hostname;
INSERT INTO #temp (id, job_name, job_id, dynamic_filter_login,
dynamic_filter_hostname, dynamic_snapshot_location,
frequency_type, frequency_interval, frequency_subday_type,
frequency_subday_interval, frequency_relative_interval,
frequency_recurrence_factor, active_start_date, active_end_date,
active_start_time,active_end_time)
EXEC sp_helpdynamicsnapshot_job;
SELECT @jobname = (SELECT DISTINCT job_name FROM #temp WHERE dynamic_filter_hostname = @hostname);
EXEC msdb..sp_start_job @job_name = @jobname;
DROP TABLE #temp;
GO
Permisos
Sólo los miembros de la función fija de servidor sysadmin o de la función fija de base de datos db_owner pueden ejecutar sp_addmergepartition.