sp_validatemergepullsubscription (Transact-SQL MetaData) Definition

Please note: that the following source code is provided and copyrighted by Microsoft and is for educational purpose only.
The meta data is from an SQL 2012 Server.

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Definition:

sys.sp_validatemergepullsubscription(nvarchar @publication
, nvarchar @publisher
, nvarchar @publisher_db
, tinyint @level)

MetaData:

 create procedure sys.sp_validatemergepullsubscription  
    (@publication            sysname,  
     @publisher                sysname,  
     @publisher_db            sysname,  
     @level                    tinyint  
     ) AS  
  
    set nocount on   
    declare @retcode                int  
    declare @pubid                    uniqueidentifier  
    declare @subscriber                sysname  
    declare @subscriber_db            sysname  
    declare @subid                  uniqueidentifier  
    --   
    --  Security Check  
     --   
    EXEC @retcode = sys.sp_MSreplcheck_publish  
    IF @@ERROR <> 0 or @retcode <> 0  
        return (1)  
  
    select @subscriber = @@SERVERNAME, @subscriber_db=db_name()  
    select @pubid = NULL  
    select @subid = NULL  
      
    select @pubid=pubid from dbo.sysmergepublications where LOWER(publisher)=LOWER(@publisher) and publisher_db=@publisher_db and name=@publication  
    if @pubid is NULL  
    begin  
        raiserror (20026, 16, -1, @publication)  
        return (1)  
    end  
      
    if @level <0 or @level > 3  
    begin  
        raiserror(21184, 16, -1, '@level', '1', '2','3')  
        return (1)  
    end  
  
    select @subid = subid from dbo.sysmergesubscriptions where pubid=@pubid and db_name=@subscriber_db and LOWER(subscriber_server) = LOWER(@subscriber)  
    if @subid is NULL  
    begin  
        raiserror(14055, 16, -1)  
        return (1)  
    end  
  
    update dbo.MSmerge_replinfo   
        set validation_level=@level   
        where repid = @subid  
    if @@ERROR<>0  
        return (1)  
    return (0)