Replicate to a different schema using streams

Question

All,
I'm performing replication using streams, I have read the doc and steps by steps notes on metalink getting the replication successfully.
But now, I want to do the same but on differents schemas ie.
source DB: Schema= A Table=test
Destination DB: Schema= B Table=test
On both databases the schemas are basically the same but with different names.
What changes o additional steps I need to perform in order to complete the replication?
Thanks in advance..!

Answer 1

Here is the procedure
1) Follow the instructions from the documentation to create the streams administrator user on both source and target.(e.g. steams_adm)
2) Connect to the streams administrator user at the TARGET (10.2) database
--Create a queue
Begin
Dbms_streams_adm.set_up_queue(
queue_name => 'APPLY_Q',queue_table => 'APPLY_Q_QT');
End;
--Create rules for apply process
begin
dbms_rule_adm.create_rule(rule_name =>'APPLY_RULE',
condition => ':dml.get_object_owner()=''<put your source schema owner>'' ');
end;
begin
dbms_rule_adm.create_rule_set(rule_set_name => 'streams_adm.apply_ruleset',
evaluation_context => 'SYS.STREAMS$_EVALUATION_CONTEXT');
dbms_rule_adm.add_rule(rule_set_name => 'APPLY_RULESET',rule_name =>'APPLY_RULE');
end;
--Set the rule to rename the schema
begin
dbms_streams_adm.rename_schema(
rule_name=>'APPLY_RULE',
from_schema_name =>'<put the source schema>',
to_schema_name => '<put the target schema>');
end;
--Create the apply
begin
dbms_apply_adm.create_apply(apply_name => 'APPLY_CHANGES',
rule_set_name => 'APPLY_RULESET',
queue_name => 'APPLY_Q',
source_database => '<source database name>',
apply_captured => true);
end;
BEGIN
DBMS_APPLY_ADM.SET_PARAMETER(
apply_name => 'APPLY_CHANGES',
parameter => 'DISABLE_ON_ERROR',
value => 'N' );
END;
--Start apply
begin
dbms_apply_adm.start_apply('APPLY_CHANGES');
end;
3) Connected as strmadmin on SOURCE (9.2) database:
--Create a database link to the TARGET database connected as streams_adm. The name of the dblink must match the target database name since you have to set global_names=true in the init files of both databases
--Create a queue
Begin
Dbms_streams_adm.set_up_queue(
queue_name => 'CAPTURE_Q',queue_table => 'CAPTURE_Q_QT');
End;
--Create the rule and rulesets
*** Here replace the schema owner and the list of tables you'd like to capture changes *** from
begin
dbms_rule_adm.create_rule(rule_name =>'FILTER_TABLES',
condition => ':dml.get_object_owner()=''<put your schema owner>'' and :dml.get_object_name() in (''TAB1'',''TAB2'')');
end;
begin
dbms_rule_adm.create_rule_set(rule_set_name => 'streams_adm.capture_ruleset',
evaluation_context => 'SYS.STREAMS$_EVALUATION_CONTEXT');
dbms_rule_adm.add_rule(rule_set_name => 'CAPTURE_RULESET',rule_name =>'FILTER_TABLES');
end;
--Prepare the schema for instantiation
*** Replace the schema name with your schema name
BEGIN
DBMS_CAPTURE_ADM.PREPARE_SCHEMA_INSTANTIATION(
schema_name => '<put your schema name here>');
END;
--Create propagation
BEGIN
DBMS_PROPAGATION_ADM.CREATE_PROPAGATION(
propagation_name => 'streams_propagation',
source_queue => 'streams_adm.capture_q',
destination_queue => 'streams_adm.apply_q',
destination_dblink => '<database link>',
rule_set_name => 'streams_adm.capture_ruleset');
END;
--Create capture process
BEGIN
DBMS_CAPTURE_ADM.CREATE_CAPTURE(
queue_name => 'streams_adm.capture_q',
capture_name => 'capture_tables',
rule_set_name => 'streams_adm.CAPTURE_RULESET',
first_scn => NULL);
END;
--start capture
begin
dbms_capture_adm.start_capture('CAPTURE_TABLES');
end;
Let me know if you have any questions