Migrate database using streams

Hi,
does anyone migrated a database using streams?
I need migrate a database with zero downtime.
Tks

Hi Serge
For you migration, did you just fallow the oracle documentation for logical standby or did you use a dedicated documentation / whitepaper or someting similar describing this kind of migration?
Im looking for migrating a 9i DB to a 10g DB. During this migration we would also like to change the OS from HP-UX to Linux.
Regards
Stefan
Message was edited by:
oehrlis

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Update is not reflecting in destination database using streams please help

We have two database (oracle9) DB1(src) and db2(dest) in windows 2000(prof) platform
1. The insert,Delete are working fine, when ever changes are made to the source it gets reflected in destination, but in case of update statement.only the source gets updated but not the destination.
Any suggestions..pls help?

As u are using oracle streams can u suggest me configuration for same.
I configured source instance as given below but i am getting error ora-4031(unable to allocate <> bytes of memory)
     Database Mode = archive
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can u mail me
at [email protected]
Regards

Migrate database using RMAN

hi masters,
we are going to shift our current production database to a new server. we are currently using oracle 10g R2 on Linux platform.
apart from another options, i would like to know what are the steps that one should follow while doing this migration???
actually i want to convince my seniors that RMAN is safe and easy way to carry out this stuff..
what are the steps and what care should be taken while doing this???
are we going to use RMAN backup file on new server with RMAN of new database with same database name as of old??
what are the steps??
any suggestion will be value addition.
thanks and regards
VD

Hi V.D.,
You can use RMAN's Duplicate Database command to clone your production on the new server.
1. Create a password file for the duplicate instance
2. Add TNS entries in tnsnames.ora and listener.ora files Reload the listener
3. Create init.ora for the duplicate database
DB_NAME=<duplicate_database_name>
CONTROL_FILES=(<newserverpath>/<duplicate_database_name>/control01.ctl, <newserverpath>/<duplicate_database_name>/control02.ctl, <newserverpath>/<duplicate_database_name>/control03.ctl)
DB_FILE_NAME_CONVERT=(<oldserverpath>/<target_database_name>/,<newserverpath>/<duplicate_database_name>/)
LOG_FILE_NAME_CONVERT=(<oldserverpath>/<target_database_name>/,<newserverpath>/<duplicate_database_name>/)
4. connect & start the duplicate database in NOMOUNT mode
5. connect to RMAN. connect to original database (TARGET), the recovery catalog (CATALOG) and duplicate database on new server (AUXILIARY)
rman TARGET sys/password@<target_database_name> CATALOG rman/rman@<rman_catalog> AUXILIARY /
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DUPLICATE TARGET DATABASE TO <duplicate_database_name>;
Hope it helps.
Regards,
Z.K.

Error upon inserting data in sql Database using stream analytics job: Datatye error conversion

I have a data passed into the Event Hubs, queried by stream analytic job inserting it into sql database. Upon running the job, it becomes idle a few seconds after since it has an error:
Message: Conversion from 0 to System.Boolean failed. 0 was of type - System.Int64.
Conversion from 0 to System.Boolean failed. 0 was of type - System.Int64. Exception message at level [1], exception number [0], parent exception number [0]: Conversion from 0 to System.Boolean failed. 0 was of type - System.Int64.
The data type in one of my field(IsHistorical) is Boolean with a value of false. The data type of the column in the sql table where this is to be inserted is of type bit. In this case, it seems that stream analytics could not convert the value "false"
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Thank you.

Azure Stream Analytics does not have Boolean type. On input we will convert JSON Boolean value to bigint.
Here is the list of supported types and conversions:
https://msdn.microsoft.com/en-us/library/azure/dn835065.aspx
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Data is not replicated on target database - oracle stream

has set up streams replication on 2 databases running Oracle 10.1.0.2 on windows.
Steps for setting up one-way replication between two ORACLE databases using streams at schema level followed by the metalink doc
I entered a few few records in the source db, and the data is not getting replication to the destination db. Could you please guide me as to how do i analyse this problem to reach to the solution
setps for configuration _ steps followed by metalink doc.
==================
Set up ARCHIVELOG mode.
Set up the Streams administrator.
Set initialization parameters.
Create a database link.
Set up source and destination queues.
Set up supplemental logging at the source database.
Configure the capture process at the source database.
Configure the propagation process.
Create the destination table.
Grant object privileges.
Set the instantiation system change number (SCN).
Configure the apply process at the destination database.
Start the capture and apply processes.
Section 2 : Create user and grant privileges on both Source and Target
2.1 Create Streams Administrator :
connect SYS/password as SYSDBA
create user STRMADMIN identified by STRMADMIN;
2.2 Grant the necessary privileges to the Streams Administrator :
GRANT CONNECT, RESOURCE, AQ_ADMINISTRATOR_ROLE,DBA to STRMADMIN;
In 10g :
GRANT CONNECT, RESOURCE, AQ_ADMINISTRATOR_ROLE,DBA to STRMADMIN;
execute DBMS_STREAMS_AUTH.GRANT_ADMIN_PRIVILEGE('STRMADMIN');
2.3 Create streams queue :
connect STRMADMIN/STRMADMIN
BEGIN
DBMS_STREAMS_ADM.SET_UP_QUEUE(
queue_table => 'STREAMS_QUEUE_TABLE',
queue_name => 'STREAMS_QUEUE',
queue_user => 'STRMADMIN');
END;
Section 3 : Steps to be carried out at the Destination Database PLUTO
3.1 Add apply rules for the Schema at the destination database :
BEGIN
DBMS_STREAMS_ADM.ADD_SCHEMA_RULES(
schema_name => 'SCOTT',
streams_type => 'APPLY ',
streams_name => 'STRMADMIN_APPLY',
queue_name => 'STRMADMIN.STREAMS_QUEUE',
include_dml => true,
include_ddl => true,
source_database => 'REP2');
END;
3.2 Specify an 'APPLY USER' at the destination database:
This is the user who would apply all DML statements and DDL statements.
The user specified in the APPLY_USER parameter must have the necessary
privileges to perform DML and DDL changes on the apply objects.
BEGIN
DBMS_APPLY_ADM.ALTER_APPLY(
apply_name => 'STRMADMIN_APPLY',
apply_user => 'SCOTT');
END;
3.3 Start the Apply process :
DECLARE
v_started number;
BEGIN
SELECT decode(status, 'ENABLED', 1, 0) INTO v_started
FROM DBA_APPLY WHERE APPLY_NAME = 'STRMADMIN_APPLY';
if (v_started = 0) then
DBMS_APPLY_ADM.START_APPLY(apply_name => 'STRMADMIN_APPLY');
end if;
END;
Section 4 :Steps to be carried out at the Source Database REP2
4.1 Move LogMiner tables from SYSTEM tablespace:
By default, all LogMiner tables are created in the SYSTEM tablespace.
It is a good practice to create an alternate tablespace for the LogMiner
tables.
CREATE TABLESPACE LOGMNRTS DATAFILE 'logmnrts.dbf' SIZE 25M AUTOEXTEND ON
MAXSIZE UNLIMITED;
BEGIN
DBMS_LOGMNR_D.SET_TABLESPACE('LOGMNRTS');
END;
4.2 Turn on supplemental logging for DEPT and EMPLOYEES table :
connect SYS/password as SYSDBA
ALTER TABLE scott.dept ADD SUPPLEMENTAL LOG GROUP dept_pk(deptno) ALWAYS;
ALTER TABLE scott.EMPLOYEES ADD SUPPLEMENTAL LOG GROUP dep_pk(empno) ALWAYS;
Note: If the number of tables are more the supplemental logging can be
set at database level .
4.3 Create a database link to the destination database :
connect STRMADMIN/STRMADMIN
CREATE DATABASE LINK PLUTO connect to
STRMADMIN identified by STRMADMIN using 'PLUTO';
Test the database link to be working properly by querying against the
destination database.
Eg : select * from global_name@PLUTO;
4.4 Add capture rules for the schema SCOTT at the source database:
BEGIN
DBMS_STREAMS_ADM.ADD_SCHEMA_RULES(
schema_name => 'SCOTT',
streams_type => 'CAPTURE',
streams_name => 'STREAM_CAPTURE',
queue_name => 'STRMADMIN.STREAMS_QUEUE',
include_dml => true,
include_ddl => true,
source_database => 'REP2');
END;
4.5 Add propagation rules for the schema SCOTT at the source database.
This step will also create a propagation job to the destination database.
BEGIN
DBMS_STREAMS_ADM.ADD_SCHEMA_PROPAGATION_RULES(
schema_name => 'SCOTT',
streams_name => 'STREAM_PROPAGATE',
source_queue_name => 'STRMADMIN.STREAMS_QUEUE',
destination_queue_name => 'STRMADMIN.STREAMS_QUEUE@PLUTO',
include_dml => true,
include_ddl => true,
source_database => 'REP2');
END;
Section 5 : Export, import and instantiation of tables from
Source to Destination Database
5.1 If the objects are not present in the destination database, perform
an export of the objects from the source database and import them
into the destination database
Export from the Source Database:
Specify the OBJECT_CONSISTENT=Y clause on the export command.
By doing this, an export is performed that is consistent for each
individual object at a particular system change number (SCN).
exp USERID=SYSTEM/manager@rep2 OWNER=SCOTT FILE=scott.dmp
LOG=exportTables.log OBJECT_CONSISTENT=Y STATISTICS = NONE
Import into the Destination Database:
Specify STREAMS_INSTANTIATION=Y clause in the import command.
By doing this, the streams metadata is updated with the appropriate
information in the destination database corresponding to the SCN that
is recorded in the export file.
imp USERID=SYSTEM@pluto FULL=Y CONSTRAINTS=Y FILE=scott.dmp IGNORE=Y
COMMIT=Y LOG=importTables.log STREAMS_INSTANTIATION=Y
5.2 If the objects are already present in the desination database, there
are two ways of instanitating the objects at the destination site.
1. By means of Metadata-only export/import :
Specify ROWS=N during Export
Specify IGNORE=Y during Import along with above import parameters.
2. By Manaually instantiating the objects
Get the Instantiation SCN at the source database:
connect STRMADMIN/STRMADMIN@source
set serveroutput on
DECLARE
iscn NUMBER; -- Variable to hold instantiation SCN value
BEGIN
iscn := DBMS_FLASHBACK.GET_SYSTEM_CHANGE_NUMBER();
DBMS_OUTPUT.PUT_LINE ('Instantiation SCN is: ' || iscn);
END;
Instantiate the objects at the destination database with
this SCN value. The SET_TABLE_INSTANTIATION_SCN procedure
controls which LCRs for a table are to be applied by the
apply process. If the commit SCN of an LCR from the source
database is less than or equal to this instantiation SCN,
then the apply process discards the LCR. Else, the apply
process applies the LCR.
connect STRMADMIN/STRMADMIN@destination
BEGIN
DBMS_APPLY_ADM.SET_SCHEMA_INSTANTIATION_SCN(
SOURCE_SCHEMA_NAME => 'SCOTT',
source_database_name => 'REP2',
instantiation_scn => &iscn );
END;
Enter value for iscn:
<Provide the value of SCN that you got from the source database>
Note:In 9i, you must instantiate each table individually.
In 10g recursive=true parameter of DBMS_APPLY_ADM.SET_SCHEMA_INSTANTIATION_SCN
is used for instantiation...
Section 6 : Start the Capture process
begin
DBMS_CAPTURE_ADM.START_CAPTURE(capture_name => 'STREAM_CAPTURE');
end;
/

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Use of non-migratable database link not allowed in OSB

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I have a procedure in which tables are invoked using Database links.
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ORA-24777: use of non-migratable database link not allowed
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The application use an entity bean for a view that use a dblink for accesing a table from another oracle database.
Thank you.
javax.ejb.EJBException: EJB Exception: ; nested exception is:
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I've gotten past this by creating the dblink as SHARED.
The SQL is
CREATE SHARED DATABASE LINK "yourlink"
CONNECT TO "dbuser" IDENTIFIED BY "dbuserpassword"
AUTHENTICATED BY "dbuser" IDENTIFIED BY "dbuserpassword"
USING 'databasename';
note the quote character use.
You can also use SQL Developer to adjust this.
This does depend on shared database connections between your db's.

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thank you!

Pl see these MOS Docs
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Hi All,
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source
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import java.sql.*;
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OP
PDF-1.4 %âãÏÓ 2 0 obj <>stream x+är á26S°00SIá2PÐ5´1ôÝ BÒ¸4Ü2KüsSSS4C²ê Pkø$VãGÒU×713CkW )(Ü endstream endobj 4 0 obj <>>>/MediaBox[0 0 595 842]>> endobj 1 0 obj <> endobj 3 0 obj <> endobj 5 0 obj <> endobj 6 0 obj <> endobj xref 0 7 0000000000 65535 f 0000000325 00000 n 0000000015 00000 n 0000000413 00000 n 0000000168 00000 n 0000000464 00000 n 0000000509 00000 n trailer <<01b2fa8b70ac262bfa939cc786f8770c>]/Root 5 0 R/Size 7/Info 6 0 R>> startxref 641 %%EOF
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I have a problem in hand. Let me describe the problem:
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But the issue is i want to create the database at runtime (the database name and tables are determined at runtime).
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I have an applet that was previously connected to Oracle 9i. I am faced with connecting to MS Access temporarily for testing purposes.
I have been unable to successfully code connection in java. I have set up the DSN and can access in SQL Worksheet in JDev.
I saw your question regarding creating an access db, and thought you might be so kind as to help me code the connection to access!!!!
Any help you could provide would be greatly appreciated. I have a huge application to finish with alot of sqlj already completed. Connectivity is not my area of expertise!
Any help you could provide would be greatly appreciated!!!
I am not sure if I have to use bridge? Am I progressing in right direction to migrating to SQL Server if need be?

Partial replication of tables using streams

I need to replicate a subset of master table (few columns) to another database. destination tables are read only. But this needs to happen in real time. I was using oracle streams to replicate entire table. To make it partial, can we have something like streams replicating materialized views from maser. Any clue on how can this be achived with better performance.

The data needs to be replicated in a few seconds, if we run a materialized view on all the tables in seconds, will it not have a performace impact on the source database.Since some tables needs to be replicated entirely at real time we are using streams for those tables.Now to get a partial one, I am trying to create a rule set with delete_columns, rename_columns etc combination of dbms_rules package.
Any links that could help this construction?
Do you still feel that materialized viwe would be a better alternative to the problem, to replicate few columns of lot of tables in real time?

Migrate database using streams

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