Time for action – working with skip rules on a logical standby database

We are now going to create some skip rules on the logical standby database in order to skip replication of DDL or DML operations on some tables. Then we'll see how to query the existing skip rules and finally the method for disabling the rules.

1. We need to create skip rules for tables and schemas, but first we need to stop SQL Apply using the following query:

   SQL> ALTER DATABASE STOP LOGICAL STANDBY APPLY;

2. Then, the following statement will create a skip rule to skip changes caused by DML statements on the EMP table of the SCOTT schema. Execute the following statement on the logical standby database:

   SQL> EXECUTE DBMS_LOGSTDBY.SKIP(STMT => 'DML', SCHEMA_NAME => 'SCOTT', OBJECT_NAME => 'EMP');
   
   PL/SQL procedure successfully completed.

3. If we also want skip DDL statements encountered for this table, the following statement will create another skip rule:

   SQL> EXECUTE DBMS_LOGSTDBY.SKIP(STMT => 'SCHEMA_DDL'...