will transnational replication made changes to the source tables?


hi all:

  here situation: want replication few big tables taba, b, c server 1 server 2.  we thinking using transactional replication have few concerns schema changes it's gonna make on articles. 

my questions:

  1. transactional replication add new tracking columns source tables taba,b,c?  we can't tolerate production schema changes. 

 thanks

hui

--currently using reporting service 2000; visual studio .net 2003; visual source safe ssis 2008 ssas 2008, svn --

yes if have configured transactional replication updatable subscriptions.

why replication add column replicated tables; removed if table isn't published?

to track changes, merge replication , transactional replication queued updating subscriptions must able uniquely identify every row in every published table. accomplish this:

  • merge replication adds column rowguid every table, unless table has column of data type uniqueidentifier rowguidcol property set (in case column used). if table dropped publication, rowguid column removed; if existing column used tracking, column not removed.

  • if transactional publication supports queued updating subscriptions, replication adds column msrepl_tran_version every table. if table dropped publication, msrepl_tran_version column not removed.

  • a filter must not include rowguidcol used replication identify rows. default column added @ time set merge replication , named rowguid.

source :https://msdn.microsoft.com/en-us/library/ms151740.aspx

hope helps

thanks

bhanu




SQL Server  >  SQL Server Replication



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