Synchronization of database schema and EJB3 / JPA objects

Hi,
I am evaluating JDeveloper 11g. My goal is to create applications using JPA / EJB3 , ADF in rapid manner. I am stuck on really simple thing. I created my first web application (address book) where User has only 2 fields First and Last names. Now I would like to add an address field in to database (offline and online) and also to my EJB3 bean User. I can only do it manually by doing the same action on the database and ORM level. I consider it pretty serious hurtle for medium+ site projects.
So my question is if there is any way to automate the process of modifying database structure or EJB3 beans to make both in sync (database and beans).
If there is no such function I suggest that it makes sense to implement it.
-- Sergei Rogovskiy

Sergei,
I filed an enhancement request for this, not knowing how difficult this will be to implement
Note that JDeveloper 11 has its own forum: JDeveloper and OC4J 11g Technology Preview
Frank

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Difference Between Database Schema and Database User Account ??

First i would like to know what an Oracle Database schema exactly is ?
And what is it for and also What is it's use ?
Later the exact "Difference Between Database Schema and Database User Account".
I googled about it but i'm unable to find out it's The difference,
Please try to explain in a simple manner........
Thank you very Much in Advance..........

user13655582 wrote:
Greate example. but i would like add one more point..
a user is a schema and schema is a user. but when this applies to the user that he become a schema, only if he has got some objects. so we can say while creating the user which dosent contain any objects called simple user account but afterwords when he has got an objects then we can say its a schema as the above user has shown you through the exampleIt is just word-play. There is nothing in like a 'status' indicator to say "USER_A is just a user but USER_B has become a schema". Many people use the terms "user" and "schema" interchangeably, and some very good DBAs will insist this is correct. I don't disagree with them even though I usually try to make the distinction.
In a typical application, all of the objects (tables, procedures, etc) that implement the app will be owned by a "application schema owner" - a user which exists for the sole purpose of owning the schema. Said user will have no privileges at all .. especially not CREATE SESSION. Except for possible maintenance activity no one ever actually connects as this user. User accounts are then given to actual humans who connect with their own accounts. The accounts have the necessary system and object privileges granted to them - via a role. One could also create a special account (let's call it APP_ADMIN) that is used for maintenance and batch operations within the application.

New User Database schema and table name

When i create a new user in Oracle Webcenter Spaces 11g, I am not able to get the name of the database schema and table, where it is stored. Any insight on this will be very helpful.

WebCenter (and WebCenter spaces) uses an 'identity store' instead of database schema for storing user information - in an 'out of the box' installation, users are maintained through an embedded WebLogic LDAP store.
See the Oracle Fusion Middleware Administrator's Guide for Oracle WebCenter, p. 34-2.
At the end of section 34.4.1:
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user9097357 wrote:
When i create a new user in Oracle Webcenter Spaces 11g, I am not able to get the name of the database schema and table, where it is stored. Any insight on this will be very helpful.

Is XS Project right for Database Schema and tables

Hi Friends
1.As per OpenSAP video it is suggesting to use XS Project for Database objects.
In my case I am planning to do AO Reporting and not creating any UI , is XS project still the right project type.
There is an option for General ->Project - would that be the right one.
2. Also in my UI I am not able to see the Prefrences->SAP Hana Development ->Repository Access to set the regit.exe. I did see couple of post mentioned about it but the response was not very clear , hence asking the question again.
regards
Poonam

Hi Poonam,
Poonam Hemrajani wrote:
1.As per OpenSAP video it is suggesting to use XS Project for Database objects.
In my case I am planning to do AO Reporting and not creating any UI , is XS project still the right project type.
There is an option for General ->Project - would that be the right one.
Project is used to group all the required development artifacts and the libraries required for them. So based on your requirement you can choose. I think "General" project would suffice your requirement if it is only to create schemas and tables.
But on the other hand if you choose to build an application using XS related libraries you can either choose to import those libraries later or create using a XS project now.
Will wait along with you to see Thomas Jung comments on this.
Poonam Hemrajani wrote:
2. Also in my UI I am not able to see the Prefrences->SAP Hana Development ->Repository Access to set the regit.exe. I did see couple of post mentioned about it but the response was not very clear , hence asking the question again.
Firstly from SP7, it is not required to setup regi.exe file. This file resides in hdbclient folder. So you need to check where you have installed hdbclient to see if you have that regi.exe file and configure it accordingly in the Path ( Preferences --> SAP HANA Development --> Repository Access ) you mentioned.
Regards,
Krishna Tangudu

Sample Oracle database Schema and sample training SQL

Hi,
I am running a windows 7, 64 bit machine. I am looking for sample oracle database schema with sample SQL queries and exercises(tutorial). Can you please point me in the right direction where I can download both.
Thanks for your time and help.

sb92075 wrote:
ssk1974 wrote:
Hi,
I am running a windows 7, 64 bit machine. I am looking for sample oracle database schema with sample SQL queries and exercises(tutorial). Can you please point me in the right direction where I can download both.
Thanks for your time and help.
http://www.lmgtfy.com/?q=oracle+sample+schema
LOL!!!!

Database schema and third party tools

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Modify database schema and logging expression

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OM and AR database schema tables Stucture??

Hello,
I have Oracle experience but new to Oracle Apps. Where can I find info on the database schema and table structure info of OM - Accounts Receivables?
Thanks!

Currently, I don't have access to Metalink. Is there any other place I can get this info...

Compare 2 schemas and get the difference with .sql file.

Hi,
I am using ORACLE DATABASE 11g R2 and ORACLE Linux 5.
I want to perform a very lengthy process and want to make it automated.
I am having a software named as SVN. In which all the developers keep their updated scripts.
We have 2 schema's one is used for developement and when all the development seems good we implement the scripts on the final schema which is used by testing people also.
Now every day we need to check the modifications in the development schema, that we do by observing the updated scripts in the SVN software. Now we get the scripts which are modified.
We will fire this scripts to a sample schema then we will compare the objects in this schema and the same objects in our final schema. If the objects in sample schema is different than the final schema it should give me the
script to create the same type object in the final schema.
Below is a proper example to explain :-
Developement Schema :- 'DEV'
SVN Script Schema :- 'SVNscript'
Main Schema :- 'MAIN'
1) On Monday developers modified/added 4 tables in the development schema names 'DEV' after working for a day they found that the changes are necessary and so checked-in in the SVN software.
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2nd table :- An index was created on it.
3rd table :- 2 Columns were dropped from it.
4th table :- A new table is added in the schema.
Now taking these 4 scripts i am going to execute it in a sample schema named :- SVNscript
SVNscript schema will have now 4 tables with proper properties(columns,indexes,...). Now this is the final table structure as we want in our 'MAIN' schema .
Coming to MAIN schema which is our most important schema and all the development work is finally posted here.Considering MAIN schema is having around 1000 tables,500 function/procedure/package and many more DB objects.
I want to compare(one way compare) from SVNscript schema --> MAIN schema :- That the objects present in the SVNscripts schema is same or not in the MAIN schema. If its not same then this code should generate a .sql script for me which i should be able to fire on the MAIN schema.
The output .sql scripts should be something like this :-
1st Table :- Alter table add...
2nd Table :- Create index on table...
3rd Table :- Alter table drop...
4th table :- Create table tablename...
I found a link while trying this but it is not the perfect fit to my requirement
http://www.dbspecialists.com/files/scripts/compare_schemas.sql
Please let me know the best code to compare 2 schemas and get a .sql file as output of the difference.
Thanks in advance.

Yes I followed the tutorial properly this time. Still i have a few queries :-
1) This is returning me the 'ALTER TABLE...' statement but how to make it more efficient to return all the DDL dependent on the table, Like index,trigger,view...
2) I want to compare objects in a different schema on a different db. I have created an DBLINK but how to use it ... can i use it like
DBMS_METADATA.OPEN('TABLE'," Network_link_name " );Can you please give me some clear about it.
3) I created a table 'TAB1' with which i want to compare a 'TAB1' in other schema.I was not getting how to compare on remote dblink so,I created the same table with the following code in the same schema
CREATE TABLE TAB1_OLD as select * from TAB1@DBLINK where 1=2;Now when i fire the below query to get the alter difference I get the following error :-
SQL> SELECT get_table_alterddl('TAB1','TAB1_old') FROM dual;
SELECT get_table_alterddl('TAB1','TAB1_old') FROM dual
ORA-31603: object "TAB1_old" of type TABLE not found in schema "SVNCHECK"
ORA-06512: at "SYS.DBMS_METADATA", line 5225
ORA-06512: at "SYS.DBMS_METADATA", line 5189
ORA-06512: at "SVNCHECK.GET_TABLE_SXML", line 17
ORA-06512: at "SVNCHECK.COMPARE_TABLE_SXML", line 12
ORA-06512: at "SVNCHECK.GET_TABLE_ALTERXML", line 11
ORA-06512: at "SVNCHECK.GET_TABLE_ALTERDDL", line 11
Can you please guide me why i am getting this error?
I have made sure that TAB1_OLD table has been created and the entries are also present in the data dictionary tables.
SQL> select * from tab1_old;
EMPNO ENAME MGR DEPTNO
----- -------------------- ----- ------The only difference is that this table was created with CREATE TABLE AS SELECT statement ....
Thanks.

How to export app +underlying schema(and data)

Hi
I am trying to export my application and its underlying tables to a new system .
I want to know if it can be done together and not seperately..(export app and then export each table)
Is there away to package the app and its underlying repository?
Thanks

No....
You will have to do them seperately as there is no logical connection between the application and the tables.
Your application just has the access to use those tables and does not "own" any of them.
a) Oracle database tables/ application tables
You can export the entire schema and all the objects and data in that schema using the export and import utilities.
All these objects are owned by the schema (eg. emp under scott) and hence are related logically.
b) Oracle apex metadata tables.
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When you create applications / objects, these tables will have metadata for those applications.
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Using Express when the database schema does not match theclass model

We are working on a large pay/personnel management system and are
evaluating Forté Express and Sage Scaffolds. We need to answer some big
questions in the near future, and I was hoping that there may be someone
out there with the answers.
1. How different can the database schema and the class model be, before
Express becomes a bad choice of framework? What solutions exist for cases
where Express is still a viable option?
2. Assuming that we can get around the problem in question 1, will the
Application Model features still work afterwards? (i.e. how sensitive are
the client-side services to changes in the database services?)
3. Express seems to use domain classes everywhere, whereas we are always
being advised to use scalar attributes wherever possible. How badly does
this affect the performance of Express applications?
4. Has anybody out there used Sage Scaffolds on a large project recently?
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5. Has anybody used the Born collection classes? How do they compare with
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Thanks to those who have already helped - all input gratefully received!
Tim Kimber
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

I did all that before posting the orignial post..
declare
v_schema_exists varchar2(1) := 'N';
res             boolean;
schemaURL       varchar2(100) := 'T0090.xsd';
schemaPath      varchar2(100) := '/prmt/xsd/T0090.xsd'; --'/public/T0090.xsd';
xmlSchema xmlType := XMLTYPE(bfilename('DIR_PRMT_OUT_CVIEW','T0090.xsd'),NLS_CHARSET_ID('AL32UTF8'));
begin
begin
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      into v_schema_exists
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end;
if (dbms_xdb.existsResource(schemaPath)) then
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res := dbms_xdb.createResource(schemaPath,xmlSchema);
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/ I guess my understanding was that I could grant another oracle user access to my registered schema just like I can grant a single user access to a table. Evidently I only have two options. Only the schema owner can use the schema or everyone can use the schema and I cannot grant access to a single user other than myself.
Edited by: Mark Reichman on Jul 2, 2010 9:08 AM
Edited by: Mark Reichman on Jul 2, 2010 9:09 AM

How copy the same project with its database schema & deploy it on same PC?

Hi,
Firstly, sorry about my forum handle. For some odd reason all the handles that I am trying to create are already in use.
Right, I am a new Application Express Developer and am managing my own Oracle Database Instance as well. I have managed to create a complete project and I have another client who requires the same project. What is the logic and steps that I can use in making a complete copy of the existing project and use it for my second client. The databse objects would be the same.
My initial thoughts are to create another database schema as a copy of the current database schema and then do an import/export of the existing project so that the new copy will work with the new schema? I am just talking on top of my head here. I am not a DBA and being new to Application Express administration does not help much either as well.
Thanks for reading my message.
Shahzad
Edited by: user10818643 on 05-Aug-2009 08:49

Virtual private database basically works by modifying your existing query.
So you have a table with your clients and a code for each client
So when client A logs in, he uses an application_context to set his code.
You have to write the procedure to set the context.
Now , what you need to do, is to modify your tables so that you can join to your client_code table based on client_code.
So when client A runs his code, he only sees his own data. When Client B runs he only sees his Data.
But you , if you run as sysdba can see both sets of data.
Check out http://asktom.oracle.com and the oracle docs. Oracle expert one on one has a good section on this two (by tom kyte too)
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Difference between target schema and target user

hi,
Can anyone explain to me what is the difference between target schema and target user? examples will be more welcome then theoratical explanation.
thanks so much

In Oracle database schema and user is the same things (if you use general authentication by database).
When used external authentication (for example with Windows domains/active directory) schema is a owner of database objects group and you should specify mapping between external usernames and schema to which this user has access when connects to database.
For example:
- windows domain user CORPDOMAIN\USER1 can connect to oracle database schema SCOTT;
- windows domain user CORPDOMAIN\USER2 can connect to oracle database schema SCOTT;
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Oleg
Message was edited by:
tsiboleg

Help me to fix the error while running DBMaintain Against the Database Schema in ASE.

Hi All,
I am trying to install sybase mobiliser platform 5.1 SP 03.I am referring the following guide
http://infocenter.sybase.com/help/topic/com.sybase.infocenter.dc01871.0513/pdf/Mobiliser_Platform_Installation_Guide_5.1…
Now I have configured the ASE database server with default settings and now it is running fine.
Now my concerns are as follows:
1) I have executed the database schema (mobr5): 001_MONEY_drop_and_create_user.DDL with the help of linux command
isql -Usa -SASE1 -Phello@123 -i/opt/sybase/db/sql/001_MONEY_drop_and_create_user.DDL -o/opt/sybase/ASE-15_0/install/ASE1.log
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database.driverClassName=com.sybase.jdbc4.jdbc.SybDriver
database.url=jdbc:sybase:Tds:ASE1:5000/mobr5
database.userName=mobr5
database.schemaNames=mobr5
database.password=paybox
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#e.g. /path/to/driver.jar
#database.driverLocation=/path/to/jconnect.jar
database.driverLocation=/opt/sybase/db/sql/com.sybase365.mobiliser.vanilla.standalone-5.1.3.RELEASE-scriptarchive-ase.jar
database.driverLocation=/opt/sybase/db/sql/com.sybase365.mobiliser.vanilla.standalone-5.1.3.RELEASE-scriptarchive-ase-vanilla.jar
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I get the following error:
So please help me to resolve the issues.

Hi All,
Issue is resolved and database has been updated successfully..
Error was in database .url field of dbmaintain.properties.ase file.
I have changed the database.url field from database.url=jdbc:sybase:Tds:ASE1:5000/mobr5
to database.url=jdbc:sybase:Tds:<Private IP of Linux instance>:5000/mobr5
Note:- I am installing mobiliser platform on AWS cloud.So I have made use of Private IP address of AWS Linux instance.

Schema and Table .. Few doubts.

Hi ,
Can you please help me out on following questions.
1. How to physicalizing the Logical Model into database Schema AND Tables
2. How to create a Schema and table in oracle 11g. Let me know if scripts are available.
3. How to create a read only user with different restricted access.
4. How to deploying the Schema, Tables (and potential scripts) into Exadata.
Please provide the aboce details.
Thanks in advance.
Regards,
Parag

You need a Database Designer and a Database Administrator.
1. With experience of having done so earlier or having learned as an understudy to someone with expertise
2. Look up the Oracle 11g database SQL documentation. See http://www.oracle.com/pls/db112/homepage
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