Synch Between Tables in Two different Databases

Synch between Two Tables in two different Databases.
I have two identical tables, table T1 in Database D1 and table T1 in Database D2. User can insert/update/delete/select from both of these tables in respective databases. Being said that how can keep them in Synch? Any thing added/modified/deleted should reflect in other. We like this to be Real-Time.
We are thinking of creating a cross (two way) DB link between them and then update/insert/delete both the tables when changing one. Any suggestions?
Thanks

One of my colleagues used snapshot in their previous projects, but he told me that the performance of it wind down while the records in tables increase. I have no idea about the exact situation, but I'm believing we'd think twice about it.
eilison
[email protected]

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Comparing Tables In Two Different Databases

Hi,
As part of our project, we need to perform table comparisons in two different databases. I am currently looking for various options to accomplish this.
One of them is doing minus operation between these two tables.
Also, i have looked at the data compare option in toad utility.
Please suggest me any other options that makes my job easy.
Thanks in advance,
Sue

Then just adapt the select that is there
SELECT stid , c1, c2, c3
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( SELECT a.*,
         1 src1,
         to_number(null) src2
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Mohamed Houri

Query two tables in two different databases.

Hello,
I have to query two tables say 'a' in database "D1"and 'b' in database "D2".I am using sql developer and it is accepting only querying for repecting databases.
i.e if i would like to access b from the sql script of D1 .Please guide me in this regard.
thank you.

Create a database link in DB "a" pointing to DB "b" then use the db link in your script.
Message was edited by:
skutz

Joining tables from two different databases

Hi,
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State: HY000. Code: 10058. [NQODBC] [SQL_STATE: HY000] [nQSError: 10058] A general error has occurred. [nQSError: 43113] Message returned from OBIS. [nQSError: 43119] Query Failed: [nQSError: 46008] Internal error: File server\Utility\Server\DataType\SUKeyCompare.cpp, line 772. (HY000)

I tried this ealier but it throws me an Invaild expression error. In the Physical Foreign key join
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Can I use two different database with DBSystemLoginModule?

Finally I can login with Database user id by DBSystemLoginModule on Embedded oc4j server.
But I confused between [b]jazn-data.xml and system-jazn-data.xml.
Which xml do I have to edit for jdbcUrl and jdbcDriver?
Now I would like to use two different database(such as only sid is different).
In this case I want to show specific database name as realm name.
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When I use DBSystemLoginModule, I edit JdbcUrl in system-jazn-data.xml.
So can I pass the parameter for sid programmatically?
And also I tried to run my application with other database with DBSystemLoginModule on Embedded oc4j server.
I changed few things(jdbcUrl at system-jazn-data.xml,jazn-data.xml in embedded-oc4j-server/config and database connection for BusinessComponents at Project Properties of Model/ViewController.
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Did I miss something?
----< my error messgae >------
500 Internal Server Error
JBO-30003: The application pool (customer.model.datamodel.CMAppModuleLocal) failed to checkout an application module due to the following exception:oracle.jbo.JboException: JBO-29000: Unexpected exception caught: java.lang.NullPointerException, msg=null at oracle.jbo.common.ampool.ApplicationPoolImpl.doCheckout(ApplicationPoolImpl.java:2002) Message was edited by:
Message was edited by:
sdcsdc

I think I understand now, you are modifing the custom login modules configuration within the system-jazn-data.xml file. This is a bit dangerous! Didn't you register the login module in your orion-application.xml? For example, this is the way I do it:
<web-module id="customProv-web" path="customProv-web.war" />
<persistence path="persistence" />

<security-role-mapping name="sr_developer">
<group name="developers" />
</security-role-mapping>
<security-role-mapping name="sr_manager">
<group name="managers" />
</security-role-mapping>
<jazn provider="XML">
<property name="custom.loginmodule.provider" value="true"/>
<property name="role.mapping.dynamic" value="true"/>
<property name="role.compare.ignorecase" value="true"/>
</jazn>

<jazn-loginconfig>
<application>
<name>customProv</name>
<login-modules>
<login-module>
<class>oracle.security.jazn.login.module.db.DBTableOraDataSourceLoginModule</class>
<control-flag>required</control-flag>
<options>
<option>
<name>data_source_name</name>
<value>jdbc/OracleDS2</value>
</option>
<option>
<name>roles_fk_column</name>
<value>userName</value>
</option>
<option>
<name>table</name>
<value>userinfo</value>
</option>
<option>
<name>groupMembershipTableName</name>
<value>groupinfo</value>
</option>
<option>
<name>groupMembershipGroupFieldName</name>
<value>role</value>
</option>
<option>
<name>usernameField</name>
<value>userName</value>
</option>
<option>
<name>user_pk_column</name>
<value>username</value>
</option>
<option>
<name>passwordField</name>
<value>passWord</value>
</option>
</options>
</login-module>
</login-modules>
</application>
</jazn-loginconfig>
<log>
<file path="application.log" />
</log>
<namespace-access>
<read-access>
<namespace-resource root="">
<security-role-mapping name="<jndi-user-role>">
<group name="administrators" />
</security-role-mapping>
</namespace-resource>
</read-access>
<write-access>
<namespace-resource root="">
<security-role-mapping name="<jndi-user-role>">
<group name="administrators" />
</security-role-mapping>
</namespace-resource>
</write-access>
</namespace-access>
</orion-application>

APEX Application accessing data from two different databases

Hi All,
Currently as we all know that APEX Application resides in database and is connected to the schema of that database.
I want APEX Application to be running and accessing data from two different databases. Elaborating my question,
Currently, my APEX Production Application is connected with XXXX Schema of DB1 Database(Where APEX Resides). Now I want to add some pages into this APEX Application for REPORT Purpose, But I want to connect this REPORT APEX Pages to get data from Different Schema YYYY for Database DB2.
Is it possible to configure this scenario?
The reason for doing this is to avoid the REPORT related (adhoc queries) resource utilization effect on Production DB1 Database.
Thanks
Nil

1. If you do the joining of two or more tables in DB1 then all data is pulled over to DB1 and then the join is executed: so more data over the databaselink and more work for DB1. Better keep the joining stuff where the data resides and just pull exactly that data over that you need.
2. Don't know about your different block sizes. Seems a nice question for one of the other forums (DBA or SQL).
3. I mean create synonyms on DB1 for reports VIEWS in DB2.
Hope all is clear!

How to integrate different tables structures from different databases?

Hi
I'm new to oracle ..kindly help me with the below issue...
I have same set of inter-related attributes (a,b,c,d) in two different databases A and B.
The structure of tables in both the database are different but they carry same attributes in same relation.
I have to integrate these attributes into single db object such that any update to base tables updates my object.How can i do this and what object will be helpful?
Thanks

Arun Rajesh wrote:
Hi
I'm new to oracle ..kindly help me with the below issue...
I have same set of inter-related attributes (a,b,c,d) in two different databases A and B.
The structure of tables in both the database are different but they carry same attributes in same relation.
I have to integrate these attributes into single db object such that any update to base tables updates my object.How can i do this and what object will be helpful?
ThanksWelcome to Forum!!!
Please elaborate your question.
Arun Rajesh wrote:
I have same set of inter-related attributes (a,b,c,d) in two different databases A and B.1. What are the ATTRIBUTES?
Arun Rajesh wrote:
The structure of tables in both the database are different but they carry same attributes in same relation.2. Post the Table Structures.
Arun Rajesh wrote:
I have to integrate these attributes into single db object such that any update to base tables updates my object.How can i do this and what object will be helpful?3. What is the end result that you desire? A sample output shall help in our understanding.
PS:- Please go through this to understand SQL and PL/SQL FAQ.
Regards,
P.

Stock transfer between locations involving two different excise duty

Hi,
While doing delivery confirmation under O4H1 transaction, I'm facing below error:
E OB 048
ED status from valuation type does not match ED status handling type TA UNTAX
I'm trying stock transfer between locations involving two different excise duty
statuses.
-Yati

>
YatiAnand wrote:
> Hi,
>
> While doing delivery confirmation under O4H1 transaction, I'm facing below error:
> E OB 048
> ED status from valuation type does not match ED status handling type TA UNTAX
>
> I'm trying stock transfer between locations involving two different excise duty
> statuses.
>
>
> -Yati
Hi Yati,
The Handling type on your STO and the Valuation type (valuation status) determined at discharge are differing.
SO your Handling type on STO seems to be a Taxed one and the valuation you are trying to discharge is UT.
Try using a handling type which is Untaxed but make sure its consistent with rest of the tables.

How to handle transactions when two different databases are involved.

consider two tables namely Table-A and Table-B part of two different databases namely ORACLE and MYSQL.
Now the project requirement is updating the Table-A(ORACLE) and Table-B (MYSQL) as one transaction. i.e. either update both the tables or rollback both the tables.
Now my question is how could i handle this situation using JDBC(Type-4) driver.Because i think at a time only one JDBC driver can be loaded into the JVM.

NareshAnkuskani wrote:
Now my question is how could i handle this situation using JDBC(Type-4) driver.Because i think at a time only one JDBC driver can be loaded into the JVM.No, that is not true.
But anyway, you need to use distributed (XA) transactions. i believe that the latest version (5.0) of mysql actually has support for XA transactions. you need to use a to setup a distributed transaction and attach the connections for the two databases to that transaction. then it should function as you desire.

Possible solution to avoid deadlock when two inserts happen on same table from two different machines.

Possible solution to avoid deadlock when two inserts happen on same table from two different machines.
Below are the details from deadlock trace.
Deadlock encountered .... Printing deadlock information
Wait-for graph
NULL
Node:1
KEY: 8:72057594811318272 (ffffffffffff) CleanCnt:3 Mode:RangeS-S Flags: 0x1
Grant List 2:
Owner:0x00000013F494A980 Mode: RangeS-S Flg:0x40 Ref:0 Life:02000000 SPID:376 ECID:0 XactLockInfo: 0x000000055014F400
SPID: 376 ECID: 0 Statement Type: INSERT Line #: 70
Input Buf: RPC Event: Proc [Database Id = 8 Object Id = 89923542]
Requested by:
ResType:LockOwner Stype:'OR'Xdes:0x0000002AA53383B0 Mode: RangeI-N SPID:238 BatchID:0 ECID:0 TaskProxy:(0x00000027669B4538) Value:0x10d8d500 Cost:(0/38828)
NULL
Node:2
KEY: 8:72057594811318272 (ffffffffffff) CleanCnt:3 Mode:RangeS-S Flags: 0x1
Grant List 2:
Owner:0x0000000B3486A780 Mode: RangeS-S Flg:0x40 Ref:0 Life:02000000 SPID:238 ECID:0 XactLockInfo: 0x0000002AA53383F0
SPID: 238 ECID: 0 Statement Type: INSERT Line #: 70
Input Buf: RPC Event: Proc [Database Id = 8 Object Id = 89923542]
Requested by:
ResType:LockOwner Stype:'OR'Xdes:0x000000055014F3C0 Mode: RangeI-N SPID:376 BatchID:0 ECID:0 TaskProxy:(0x000000080426E538) Value:0x30614e80 Cost:(0/41748)
NULL
Victim Resource Owner:
ResType:LockOwner Stype:'OR'Xdes:0x0000002AA53383B0 Mode: RangeI-N SPID:238 BatchID:0 ECID:0 TaskProxy:(0x00000027669B4538) Value:0x10d8d500 Cost:(0/38828)
deadlock-list
deadlock victim=process5daddc8
process-list
process id=process5daddc8 taskpriority=0 logused=38828 waitresource=KEY: 8:72057594811318272 (ffffffffffff) waittime=2444 ownerId=2994026815 transactionname=user_transaction lasttranstarted=2014-07-25T12:46:57.347 XDES=0x2aa53383b0 lockMode=RangeI-N schedulerid=43 kpid=14156 status=suspended spid=238 sbid=0 ecid=0 priority=0 trancount=2 lastbatchstarted=2014-07-25T12:46:57.463 lastbatchcompleted=2014-07-25T12:46:57.463 clientapp=pa hostname=pa02 hostpid=1596 loginname=myuser isolationlevel=serializable (4) xactid=2994026815 currentdb=8 lockTimeout=4294967295 clientoption1=671088672 clientoption2=128056
executionStack
frame procname=mydb.dbo.SaveBill line=70 stmtstart=6148 stmtend=8060 sqlhandle=0x03000800d61f5c056bd3860170a300000100000000000000
INSERT INTO [dbo].[Prod1] .....
inputbuf
Proc [Database Id = 8 Object Id = 89923542]
process id=process5d84988 taskpriority=0 logused=41748 waitresource=KEY: 8:72057594811318272 (ffffffffffff) waittime=2444 ownerId=2994024748 transactionname=user_transaction lasttranstarted=2014-07-25T12:46:57.320 XDES=0x55014f3c0 lockMode=RangeI-N schedulerid=39 kpid=14292 status=suspended spid=376 sbid=0 ecid=0 priority=0 trancount=2 lastbatchstarted=2014-07-25T12:46:57.440 lastbatchcompleted=2014-07-25T12:46:57.440 clientapp=pa hostname=pa01 hostpid=1548 loginname=myuser isolationlevel=serializable (4) xactid=2994024748 currentdb=8 lockTimeout=4294967295 clientoption1=671088672 clientoption2=128056
executionStack
frame procname=pa.dbo.SaveBill line=70 stmtstart=6148 stmtend=8060 sqlhandle=0x03000800d61f5c056bd3860170a300000100000000000000
INSERT INTO [dbo].[Prod1]....
inputbuf
Proc [Database Id = 8 Object Id = 89923542]
resource-list
keylock hobtid=72057594811318272 dbid=8 objectname=pa.dbo.prod1 indexname=PK_a id=lock1608ee1380 mode=RangeS-S associatedObjectId=72057594811318272
owner-list
owner id=process5d84988 mode=RangeS-S
waiter-list
waiter id=process5daddc8 mode=RangeI-N requestType=convert
keylock hobtid=72057594811318272 dbid=8 objectname=pa.dbo.prod1 indexname=PK_a id=lock1608ee1380 mode=RangeS-S associatedObjectId=72057594811318272
owner-list
owner id=process5daddc8 mode=RangeS-S
waiter-list
waiter id=process5d84988 mode=RangeI-N requestType=convert

Don't know. Perhaps these can help. I scanned the second link but didn't see much about Ending Deadlocks. I'd say the Fourth link probably has better information than the first three links. But maybe read them all just in case the Fourth is missing something
one of the first three have.
Deadlocking
Detecting and Ending Deadlocks
Minimizing Deadlocks
Handling Deadlocks in SQL Server
Google search for "SQL Deadlock"
La vida loca

Joining two tables in two different schema

Hi All,
I have a requirement to join two tables in two different schema. How to join these two tables in view object.
Many thanks in advance.
Regards
Kaushik Gopalakrishnan

1) If these tables are in one and same database instance, then you can join them by specifying the fully-qualified table names (inlcuding the schema name), for example:
SELECT ...
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Dimitar

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Hi,
In my application, I need to create View Objects on different databases. So I need to add two different database connections on the Model.
But it seems like Model can be connected to only one database. I tried adding another project to add the second db connection. But after I created a read-only View Object in the second project, it didn't generate corresponding data control in the Data Controls panel.
Could anyone help me on this?
Thanks!

Do you mean adding the second project folder in ViewController->Project Properties->Libraries and Classpath?Yes, either that or: ViewController -> Project Properties -> Dependencies
And I didn't see the first Model project in the ViewController classpath. Otherwise it wouldn't work. The first model project IS in 'classpath'. Here's how:
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After you are sure that everything is in the ViewController's classpath, just try restarting JDeveloper.
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Hi All,
I am developing a swing application which needs to interact with two different database instances of two different weblogic servers.
More eloborately,
I have some data in DB_Instance1 running on[b] Weblogic_Server1 and I need to insert the same data into DB_instance2 running on Weblogic_server2. Is it possible. Could some explain me how to do that..
Thanks in advance...
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Hi Rick,
Try logging onto both Server first. You'll have to use either 2 separate ODBC DSN's or 2 separate OLE DB connections. Set them both for Trusted Authentication, you'll have to configure that on the Server also.Then try your query.
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Thank you
Don

Compare performance of two different databases...idea of a report to us?

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Regards,
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Hello,
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Hello All,
I am running same backup script on two different Databases.
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Please give me your feedback.
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cd $ORACLE_HOME/bin
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connect target
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delete noprompt obsolete;
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EOF
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-rw-r----- 1 oracle dba 38029824 Jun 19 00:00 backup_uuhlvjs8_1_1
-rw-r----- 1 oracle dba 781287424 Jun 19 00:20 v1hlvjsk_1_1
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-rw-r----- 1 oracle dba 1222656 Jun 19 00:23 backup_v2hlvl7r_1_1
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-rw-r----- 1 oracle dba 4177920 Jun 19 00:23 SNAPCF_ATHENA.F
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OS: Linux (SLES 8)
DB: 10.1.0.5.0
Log Archive Filename Format: %t_%s_%r.dbf
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1_17805_535674251.dbf 1_17838_535674251.dbf SID_2dhlms8c_1_1.1
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1_17868_535674251.dbf
DN

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Synch Between Tables in Two different Databases

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