anchor.diff:  If the `database.server.name` configuration property has the value `server1`,
   every change event for the `customers` table while it has this definition will feature the same key structure, which in JSON looks like this:
   
  -[source,json,indent=0]
  +[source,json,indent=0,sub="attributes"]
   ----
   {
       "schema": {
  
positive.code: 
  toc::[]
  
  {prodname}'s Oracle Connector can monitor and record all of the row-level changes in the databases on an Oracle server.
  Most notably, the connector does not yet provide full-blown support of changes to the structure of captured tables (e.g. `ALTER TABLE...`) after the initial snapshot has been completed
  (see {jira-url}/browse/DBZ-718[DBZ-718]).
  It is supported though to capture tables newly added while the connector is running
  (provided the new table's name matches the connector's filter configuration).
  For table schema changes an xref:surrogate-schema-evolution[auxilliary solution] could be used.
  
  [[oracle-overview]]
  == Overview
  
  {prodname} ingests change events from Oracle using the native LogMiner database package or the https://docs.oracle.com/database/121/XSTRM/xstrm_intro.htm#XSTRM72647[XStream API].
  
  [[how-the-oracle-connector-works]]
  == How the Oracle Connector Works
  
negative.code: [[surrogate-schema-evolution]]
  == Surrogate schema evolution
  
  The Oracle connector will automatically track and apply table schema changes by parsing DDL from the redo logs.
  In the event that the DDL parser encounters an unsupported statement, the connector offers an alternative way to handle applying the schema change should the need arise.
  
  By default, the connector will stop when an unparseable DDL statement is encountered.
  This DDL can be manually performed by using {prodname} link:/documentation/reference/configuration/signalling[signalling] to trigger the update of the database schema.
  
  The type of the schema update action is `schema-changes`.
  It will update the schema of all tables enumerated in the signal parameters.
  