Constraints, schema upgrade and 24/7

Hello, gurus. I need your advice.
I am working on upgrading my database to a new release:) I do it schema by schema. So i have an old schema with data and in processing and the new one wich containts only metadata.
Now I want to upgrade all constraints on the fly ( database is 24/7).
What I am going to do:
1. Find out every table owned by new+old user
2. For every column of these tables i'll check if they have identical constraints.
3. If not write to the file modify/drop/add constraint statement
4. Execute file as sql-script.
is it a good solution?

You could use dbms_metadata.get_ddl to generate DDL for all tables in schema1, schema2 and then use unix tool diff to tell the differences.
You could use exp with rows=no to create a dump file for schema1, schema2, then diff the dp files.
You can also use OEM, Toad etc to compare schemas. See http://dgielis.blogspot.com/2006/01/compare-2-oracle-schemas.html

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Schema name and object name quoted together in MRU after v3 to v4 upgrade

After upgrading from v3 to v4 an app has a system generated Multi Row Update function that is broken;
PL/SQL : ORA-00972: identified is too long
declare
function x return varchar2
is
begin
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begin
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Many thanks in advance
Craig

Hi Craig,
this problem is not known so far.
I had a look at the code and that change has been made because of multi byte support for sequence names and because of security reasons.
We try to avoid breaking changes in applications, but it looks like we haven't expected that developers are specifying sequence names prefixed by the schema name.
Maybe the following workaround is feasible for you:
1) Find all tabular form columns which are using a sequence with a schema prefix as primary key source
select *
from apex_application_page_rpt_cols
where primary_key_column_source_type = 'S'
   and instr(primary_key_column_source, '.') > 0;2) Go to that tabular form column and remove the schema prefix
3) If the sequence is really in a different schema than the parsing schema of your application, create a synonym for it.
Hope that solves your problem.
Regards
Patrick
My Blog: http://www.inside-oracle-apex.com
APEX Plug-Ins: http://apex.oracle.com/plugins
Twitter: http://www.twitter.com/patrickwolf

How to script schema upgrade as single success unit

We currently use a combination of Ingres and SQL Server databases. When upgrading a schema of our own design we will script the upgrade as a single success unit. If any part fails then the whole lot is rolled back. (This is a slight simplification but it's the general principle we follow). However in Oracle I believe DDL statements are automatically committed. This is thwarting our attempts to adopt the same approach with Oracle.
As a simple example say a column is being moved from one table to another (for whatever reason). The application changes to be implemented depend on three things happening:
1. table_new has column_new added to it
2. column_new on table_new is populated from column_old on table_old
3. table_old has column_old dropped from it
so the upgrade script will run something like:
Start Transaction
alter table table_new add column_new(etc... ;
update table_new set column_new = (select column_old from table_old etc.... ;
alter table_old drop column_old ;
If Error then
Rollback
Else
Commit Transaction
This way if there is an error then the database is left in a state that works with the old application code. If the upgrade succeeds then the new application code can implemented.
So my questions are:
1. Am I correct in thinking that in Oracle, step 1 above will commit as soon as it's submitted preventing rollback?
2. If so then what would people recommend as a way to achieve a single success unit for a schema upgrade?
We were hoping to use flashback with restore points to perform the equivalent of a rollback if there were any errors in the upgrade script. Having tried that this afternoon though, I received an error about being unable to flashback the table because it had been changed (don't have the error here I'm afraid as I'm at home now). Would restoring the tablespace (we are setting up one tablespace per schema) to a point in time before the upgrade script started be reasonable? It seems a little extreme and also considerably more difficult to script than the flashback option. Otherwise I'm thinking that some combination of creating a new table, populating it, dropping the old table, renaming the new table with the original name might be an option. However this obviously has much greater overheads, higher chance of error and considerably more messing about if constraints, rules and procedures are involved.
Any suggestions or corrections on what I've added above are appreciated.
thanks
Mark

Thanks for the responses.
Unfortunately this will always be a case of altering the schema rather than creating it once applications are running against Oracle.
Tablespace point in time recovery is probably looking like the best option so far. A script would only ever upgrade one schema at a time and we're setting things up to use one tablespace per schema.
Proving and then rehearsing a TSPITR (as I believe it's called) is on the list of things that we need to do but it seems like it may be needed as a more routine tool than just in emergencies. I shall concentrate my reading in that direction. Would anybody care to offer any opinions on automating restores for this situation? We have people on call but generally only plan to come in out of hours to check the outcome of big upgrades. Smaller schema upgrades are left to pass or rollback overnight.
It's a real shame that flashback works at the database and table levels but does not have a tablespace option as that would be perfect. Flashing back the whole database could be problematic as we will probably end up with multiple schemas in each database, each one being used by different applications so we could realistically have applications running against some schema_a whilst we're upgrading schema_b. Flashing back the whole database would obviously then cause problems in schema_a, or schema_a or the associated application would have to be suspended while we upgraded schema_b. Whilst we're lucky enough to have some downtime with most of our applications, this is gradually disappearing and there are some which are now approaching 24/7 availability.
I'm still open to other suggestions though. This seems so much more complicated than the approach which has worked for Ingres and SS. Do you apply schema changes whilst the system is running? Does somebody do this manually or is it scheduled?
thanks again
Mark

Error during OIM schema upgrade during product ugprade from 9.1.0.2 to 11g

Hi All,
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On the screen while running upgrade assistance (ua.bat)
Following message came on screen.
Schema Version registry >> succeeded
Oracle Identity Manager Schema Upgrade >> Failed
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\middleware_home\Oracle_IDM1/server/db/oim/oracle/Upgrade/Oracle_upg_91_92_x2ell_92.sql
[2012-06-28T09:34:51.147-06:00] [FrameworkMR] [NOTIFICATION] [] [upgrade.FrameworkMR] [tid: 14] [ecid: 0000JWnikOB6qIvyKWYBSQ1Fv7Zd000005,0] finalize() instance 1 of 2
[2012-06-28T09:35:00.863-06:00] [OIM] [INCIDENT_ERROR] [] [upgrade.OIM] [tid: 13] [ecid: 0000JWnijRj6qIvyKWYBSQ1Fv7Zd000004,0] UPGCMP-00924: SQL error [{0}]
[2012-06-28T09:35:00.863-06:00] [OIM] [INCIDENT_ERROR] [] [upgrade.OIM] [tid: 13] [ecid: 0000JWnijRj6qIvyKWYBSQ1Fv7Zd000004,0] [[
java.sql.SQLSyntaxErrorException: ORA-00955: name is already used by an existing object
ORA-06512: at line 31
     at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:457)
     at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:405)
     at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:889)
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     at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1466)
     at oracle.jdbc.driver.OracleStatement.executeUpdateInternal(OracleStatement.java:2123)
     at oracle.jdbc.driver.OracleStatement.executeUpdate(OracleStatement.java:2067)
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     at oracle.ias.mrua.plugin.oim.SchemaUpgrader.loadScript(SchemaUpgrader.java:303)
     at oracle.ias.mrua.plugin.oim.SchemaUpgrader.doUpgrade(SchemaUpgrader.java:139)
     at oracle.ias.mrua.plugin.oim.OIMSchemaUpgradePlugin.doUpgrade(OIMSchemaUpgradePlugin.java:302)
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Any Idea ?
Ritu

Hi All,
We are also trying to upgrade OIM 9.1.0.2 which is present in our environment to OIM11g. Request your help.
Now how do we achieve the upgrade? Should my source of OIM9i software and target of OIM 11g software be installed on the same server?
I did install OIM11g and OIM9i on the same server and tried to do schema upgrade based on the link:
Upgrading Oracle Identity Manager Environment
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UPGAST 00091- ERROR DURING EXAMINE OF COMPONENETS
UPGAST 01004- UPGRADE IS UNABLE TO DYNAMICALLY LOAD COMPONENET SPECIFIC SOFTWARE MODULES.
When i check in the log in internet it says :
Cause: Repository upgrade framework was unable to dynamically load the Java classes of its component-specific software modules. mrua.xml file might have been corrupted.
Action: This is an internal error. Verify that the Java classpath has been correctly set, the mrua.xml file is correct, and that the .jar files for all component-specific software modules are present in the jlib directory. Contact Oracle Support Services for assistance
What is the javaclasspath to be set?how to check if mrua.xml and jar files are fine
Pls help.Any help is much appreciated.

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Hi All,
We are trying to upgrade OIM 9.1.0.2 which is present in our environment to OIM11g. Request your help.
Now how do we achieve the upgrade? Should my source of OIM9i software and target of OIM 11g software be installed on the same server?
I did install OIM11g and OIM9i on the same server and tried to do schema upgrade based on the link:
http://docs.oracle.com/cd/E21764_01/upgrade.1111/e10129/upgrade_oim.htm
But during examine phase I get error the below error
UPGAST 00091- ERROR DURING EXAMINE OF COMPONENETS
UPGAST 01004- UPGRADE IS UNABLE TO DYNAMICALLY LOAD COMPONENET SPECIFIC SOFTWARE MODULES.
When i check in the log in internet it says :
Cause: Repository upgrade framework was unable to dynamically load the Java classes of its component-specific software modules. mrua.xml file might have been corrupted.
Action: This is an internal error. Verify that the Java classpath has been correctly set, the mrua.xml file is correct, and that the .jar files for all component-specific software modules are present in the jlib directory. Contact Oracle Support Services for assistance
What is the javaclasspath to be set?how to check if mrua.xml and jar files are fine
Pls help.Any help is much appreciated.

Hi All,
We are also trying to upgrade OIM 9.1.0.2 which is present in our environment to OIM11g. Request your help.
Now how do we achieve the upgrade? Should my source of OIM9i software and target of OIM 11g software be installed on the same server?
I did install OIM11g and OIM9i on the same server and tried to do schema upgrade based on the link:
Upgrading Oracle Identity Manager Environment
But during examine phase I get error the below error
UPGAST 00091- ERROR DURING EXAMINE OF COMPONENETS
UPGAST 01004- UPGRADE IS UNABLE TO DYNAMICALLY LOAD COMPONENET SPECIFIC SOFTWARE MODULES.
When i check in the log in internet it says :
Cause: Repository upgrade framework was unable to dynamically load the Java classes of its component-specific software modules. mrua.xml file might have been corrupted.
Action: This is an internal error. Verify that the Java classpath has been correctly set, the mrua.xml file is correct, and that the .jar files for all component-specific software modules are present in the jlib directory. Contact Oracle Support Services for assistance
What is the javaclasspath to be set?how to check if mrua.xml and jar files are fine
Pls help.Any help is much appreciated.

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Microsoft Windows [Version 6.1.7600]
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This has all the info you need:
http://technet.microsoft.com/en-us/library/bb125224(v=exchg.141).aspx
Prepare Active Directory and Domains
and
http://technet.microsoft.com/en-us/library/bb629560(v=exchg.141).aspx
Upgrade Exchange 2010 to Exchange 2010 SP1, Exchange 2010 SP2, or Exchange 2010 SP3
Note: There is no harm in simply running setup/PrepareAllDomains.
You should break out each Prep step since you have multiple domains:
setup/PrepareSchema
setup /PrepareAD
setup /PrepareAllDomains
you can run all of these from the same DC you run the setup/PrepareSchema step!
Twitter!:
Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

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No, I was guessing at the syntax from reviewing other web postings, some of which were in different SQL dialects.
While your SQLCE Toolbox did not provide the DROP INDEX command, it did provide most of the "Schema Diff" scripting commands. In hindsight, maybe SQLCE Toolbox should recognize when schema differences involve a Column which is used in an index, and
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Thanks, ErikEJ!
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968751 wrote:
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Constraints, schema upgrade and 24/7

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