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sys.sp_MSadd_anonymous_agent

  No additional text.


Syntax
CREATE PROCEDURE sys.sp_MSadd_anonymous_agent
(
    @publisher_id       int,
    @publisher_db       sysname,
    @publication        sysname,
    @subscriber_db      sysname,
    @subscriber_name    sysname,
    @anonymous_subid    uniqueidentifier output,
    @agent_id           int output,
    @reinitanon         bit = 0
)
as
begin
/*
** This stored procedure does not really add a job at distribution database;
** if add a row in MSdistribution_agent table for anonymous subscription for the
** purpose of history logging
*/

   set nocount on
   declare @distribution_type smallint
            ,@profile_id int
            ,@subscriber_id smallint
            ,@retcode int
            ,@publication_id int
            ,@virtual_agent_id int
            ,@anonymous_agent_id int
            ,@virtual smallint
            ,@virtual_anonymous smallint
            ,@new_agent_id int
            ,@anonymous int
            ,@publisher_database_id int
            ,@allow_anonymous bit
            ,@publication_type int
            ,@merge_publication_type int
            ,@publisher sysname

   select @publication_type = NULL
            ,@merge_publication_type = 2
            ,@virtual = -1
            ,@virtual_anonymous = -2
            ,@anonymous = 2


    -- Check to see if the publication is valid and allow anonymous
    select @publication_id = publication_id, @allow_anonymous = allow_anonymous, @publication_type = publication_type
    from dbo.MSpublications where
        publisher_id = @publisher_id and
        publisher_db = @publisher_db and
        publication = @publication


    if @subscriber_name is null
        select @subscriber_name = N''

    -- Get virtual ids
    select top 1 @virtual_agent_id = agent_id,
        @publisher_database_id = publisher_database_id from dbo.MSsubscriptions where
        publisher_id = @publisher_id and
        publisher_db = @publisher_db and
        publication_id = @publication_id and
        subscriber_id = @virtual

    select top 1 @anonymous_agent_id = agent_id from dbo.MSsubscriptions where
        publisher_id = @publisher_id and
        publisher_db = @publisher_db and
        publication_id = @publication_id and
        subscriber_id = @virtual_anonymous

    -- Security check
    exec @retcode = sys.sp_MScheck_pull_access
        @agent_id =  @anonymous_agent_id,
        @agent_type = 0 -- distribution agent
    if @retcode <> 0 or @@error <> 0
        return (1)

    if @publication_id is null
    begin
        RAISERROR (21040, 16, -1, @publication)
        return 1
    end

    if @publication_type = @merge_publication_type
    begin
        RAISERROR(21132, 16, -1, @publication)
        return 1
    end

    if @allow_anonymous = 0
    begin
        RAISERROR (21084, 16, -1, @publication)
        return 1
    end


    /*
    **  To return two more parameters for the purpose of anonymous monitoring
    **
    ** If @anonymous_subid is null, this is a new anonymous subscription; A new row would be inserted in MSdistribution_agents.
    ** And its id (identity) and newly generated ID will be returned; The new ID would be used in subscriber side.
    */
    select @subscriber_id = 0   -- for anonymous subscribers, ID is always 0

    select @agent_id = id from MSdistribution_agents
    where anonymous_subid = @anonymous_subid

    IF @agent_id is null
    BEGIN
        if @anonymous_subid is not NULL and @anonymous_subid <> 0x00
           and @reinitanon = 0
        begin
            -- Agent has be cleaned up, return error.
            raiserror(21072, 16, -1)
            return(1)
        end
        -- Generate a new subid only when the subscription is not
        -- reinitialized
        if @reinitanon = 0
        begin
            select @anonymous_subid = newid()
        end
        SELECT @distribution_type = 3

  SELECT @profile_id = profile_id
        FROM msdb..MSagent_profiles
        WHERE agent_type = @distribution_type
            AND def_profile = 1

        IF @profile_id IS NULL
        RETURN (1)
        
        -- SKU based subscription count check
        -- Skip this check for snapshot publications
        
        if (@publication_type != 1)
        begin
            select @publisher = name
            from sys.servers
            where server_id = @publisher_id
            exec @retcode = sys.sp_MScheck_subscription_count_internal @mode=0
                                            ,@publisher = @publisher
                                            ,@about_to_insert_new_subscription = 1
            if (@retcode != 0 or @@error != 0)
                return 1
        end
        
        -- Add entry to Distribution agents
        
        INSERT into MSdistribution_agents (name, publisher_database_id, publisher_id, publisher_db, publication,
                    subscriber_id, subscriber_db, subscription_type, local_job, job_id, subscription_guid, profile_id, anonymous_subid,
                    subscriber_name, virtual_agent_id, anonymous_agent_id)

             VALUES (convert(nvarchar(40), @anonymous_subid), @publisher_database_id, @publisher_id, @publisher_db, @publication,
                        @subscriber_id, @subscriber_db, @anonymous, 0, @anonymous_subid,
                        @anonymous_subid, @profile_id, @anonymous_subid, @subscriber_name,
                        @virtual_agent_id, @anonymous_agent_id)
        select @agent_id = @@identity
    END
end

 
Last revision 2008RTM
See also

  sp_instdist (Procedure)
sp_MShelp_distribution_agentid (Procedure)
       



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