Sharing _all tables
After you have set up the sites on an intranet and assigned a master site to the intranet, you can share _all tables.
Note: If all the sites are in one database, there is no
            need to share _all tables, or share user tables. It is already effectively being
            done.
 
		       For more information, see Setting Up a Master Site and Shared Tables.
Note:  If one of the shared _all tables at the master site has a schema
		  change, you must update the views into the _all table at the user sites on the
		  intranet. To do this, in the master site's 
		  Replication Management form, click 
		  .