Data Modeler Incremental Database Changes

We need the tool to determine the differences between the database and the model, so that it generates DDL only for the changes without us having to tell the tool at DDL creation time which are the new tables, columns, indexes, etc. Is this feature available already or would this be a new feature?

Hi,
Yes, this feature is already available.
If the model was initially imported from the database, you can use Synchronize Data Dictionary with Model (either for individual objects, or for the whole model using the right-pointing arrow above the diagram).
This displays the Compare Models dialog identifying the differences. You can use its DDL Preview button to generate DDL to update the database.
There's a short video demonstrating this at http://apex.oracle.com/pls/apex/f?p=44785:24:689545084496101::NO:24:P24_CONTENT_ID,P24_PREV_PAGE:5951,2
If the model was not imported from the database, you can do the following:
Open your model (including the relevant Physical Model).
Use Import/Data Dictionary to start the Data Dictionary Import Wizard. In step 2, select the "Swap Target Model" tick box. And select the relevant objects to import from the database.
After the import phase, this will display the Compare Models dialog as in the previous case.
There is now a forum specifically for Data Modeler topics: SQL Developer Data Modeler
David

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Oracle Spatial RDF data model and database edition

Hi: Can some one please let me know the Oracle edition that support the RDF data mdoel.
According to my understaning it is Oracle 10g Enterprsie edition, with the Spatial option. If this is true; is installing the enterprise edition will already give me the Spatial option? or do I have to isntall the Spatial data model as a seperate module. Besides this is installing the Spatial data model already give the RDF capability, or again RDF is a sepeare module that need to be installed seperately?
Thanks in advance
Regards,
Rashid.

Hi Axel,
You could use the download of Oracle 10g available on OTN at http://www.oracle.com/technology/tech/semantic_technologies/index.html. This can be used free for development, but not for deployment. As long as you use it just for development during your thesis and do not deploy it in a production environment it should be OK to use the free download.
Along with the free download we recommend also using the patch (RDF specific patch for 10.2.0.1 database) that is available by clicking on 'software' on the same page.
Melli

Why the data in the database changed

the code is like this:
private boolean dbUpdate() throws SQLException, IOException {
Connection conn = null;
try {
conn = ConnectHandle.getDBConnection();
conn.setAutoCommit(false);
PreparedStatement pstUpdate =
conn.prepareStatement("UPDATE mytable SET ID= ?, NAME=?,CONTENT=null");
pstUpdate.setString(1, this.getID);
pstUpdate.setString(2, this.getName());
if (pstUpdate.executeUpdate() > 0 && dbUpdateContent(conn)) {
conn.commit();
return true;
else {
conn.rollback();
return false;
catch (SQLException e) {
conn.rollback();
throw e;
catch (IOException e) {
conn.rollback();
throw e;
finally {
if (conn != null) {
conn.setAutoCommit(true);
ConnectHandle.freeDBConnection(conn);
private boolean dbUpdateContent(Connection conn) throws
SQLException, java.io.IOException {
if (getContent() == null)
return true;
PreparedStatement pstUpdate = conn.prepareStatement(.
"UPDATE mytable SET CONTENT = empty_clob() WHERE ID = ?");
pstUpdate.setString(1, getId());
pstUpdate.executeUpdate();
PreparedStatement pstSelect = conn.prepareStatement(
"SELECT CONTENT FROM DOC_SENDED_ARCHIVE WHERE ID = ? FOR UPDATE");
pstSelect.setString(1, getId());
OracleResultSet ors = (OracleResultSet) pstSelect.executeQuery();
if (!ors.next())
return false;
CLOB clob = ( (OracleResultSet) ors).getCLOB(1);
Writer writer = clob.getCharacterOutputStream();
writer.write(getContent());
writer.close();
ors.close();
return true;
i want to insert and update records in oracle talbe,the table contains a clob field
but it sometimes (not always ) throws sqlexception ,
java.sql.SQLException: ORA-01002: fetch out of sequence     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
     at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
     at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:573)
     at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1891)
     at oracle.jdbc.ttc7.TTC7Protocol.fetch(TTC7Protocol.java:1198)
     at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:2400)
     at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2672)
     at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:589)
     at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:527)
     at com.abc.MyClass.dbUpdateContent(SendedArchive.java:457)
     at com.abc.MyClass.dbUpdate(SendedArchive.java:415)
why throw this exception?
and other question is
when throw this Exception ,it execute conn.rollback(),the database should not change,but in database
the name is changed,why?

I'm not sure if this solves your problem, but I think you need to do this:
// This is your original code
//conn.prepareStatement("UPDATE mytable SET ID= ?, NAME=?,CONTENT=null");
//pstUpdate.setString(1, this.getID);
//pstUpdate.setString(2, this.getName());
// This is what I'd recommend
conn.prepareStatement("UPDATE mytable SET ID= ?, NAME=?,CONTENT=?");
pstUpdate.setString(1, this.getID);
pstUpdate.setString(2, this.getName());
pstUpdate.setNull(3, java.sql.Types.VARCHAR);You want to set that CONTENT column to a SQL null, not a Java null. - MOD

Oracle Data Modeling

Hello, I download Oracle datamodeling-1.5.1-525 and I create a logical model of my future database. My database have about 127 entities, 974 attributes and 233 relations.
I want generate ddl sentences in oracle and generate my oracle scheme in my database (Oracle SE 10G R2). I tried to create a relational model throught to Designer -> Engineer to Relational Model (Ctrl-Mayus-F) but nothing happend. The program does not anything, no errors no models, nothing.
Can anyone help me, please?
Thanks you very much!!!
PD: Excuseme, but I'm Spanish and my English is horrible.

Hi Roberto,
do you still use build 525? You can try the latest version here [http://www.oracle.com/technology/products/database/datamodeler/index.html] . Please pay attention to "release notes" and remark there - "Note for designs created with earlier versions of Data Modeler – persistence has changed and it’s strongly recommended that you use the “Save As” functionality to create new version of designs".
New version will resolve possible inconsistencies and you can engineer to relational model.
Philip

ADF UIX and Database Changes

We are in the process of designing an entirely new system. Our data model is still changing but we are also trying to develop programs using Jdeveloper ADF UIX. Here is our issue; whenever our database tables change, we have to refresh our developed programs. Doing a synchronize on the view objects doesn't seem to update the xml or java files. Is there an easy way to do this? I find that the xml or java files still reference old fields that have been renamed or removed from the database. We are using Jdeveloper 10g.
Thanks!

I am very new to Jdeveloper 10G...First of all i want to create a screen with multiple rows and this screen should open up in Insert mode...and then on the button click i want a database procedure to be called which would then insert these rows into the table after few validations...
Now could you tell me how to create a screen with multiple rows in insert mode and if you have some example of referring to a database procedure then could you please point me to that?

Data model in Interactive Reporting

Hi,
Could any one clarify me on What is Data model in Interactive report and how we can use exactly.

A data model is the physical representation of your tables joined together.
In SQL terms it the FROM and WHERE (JOIN) clauses.
an IR Query section depends on a Data Model. That Data Model can be a Master Data Model (Shared with many Query Sections) or a regular Data Model.
Master Data Models cannot be changed within the Query Section - Their Background is Grey and will indicate so in the upper left corner of the screen...
Locked Data Model: {data model section name}
Master Data Models are useful in that you only design it once and then it and its connection are shared with many Query Sections. And modifications to the Data Model are then applied in the Data Model Section and each dependent Query Section has those changes.
For a more comple defintion open Interactive Reporting and go to HELP. In the Search type "Data Modeling"
You will have plenty to read.
Wayne Van Sluys
TopDown Consulting

Data Model best Practices for Large Data Models

We are currently rolling out Hyperion IR 11.1.x and are trying to establish best practces for BQYs and how to display these models to our end users.
So far, we have created an OCE file that limits the selectable tables to only those that are within the model.
Then, we created a BQY that brings in the tables to a data model, created metatopics for the main tables and integrated the descriptions via lookups in the meta topics.
This seems to be ok, however, anytime I try to add items to a query, as soon as i add columns from different tables, the app freezes up, hogs a bunch of memory and then closes itself.
Obviously, this isnt' acceptable to be given to our end users like this, so i'm asking for suggestions.
Are there settings I can change to get around this memory sucking issue? Do I need to use a smaller model?
and in general, how are you all deploying this tool to your users? Our users are accustomed to a pre built data model so they can just click and add the fields they want and hit submit. How do I get close to that ideal with this tool?
thanks for any help/advice.

I answered my own question. in the case of the large data model, the tool by default was attempting to calculate every possible join path to get from Table A to Table B (even though there is a direct join between them).
in the data model options, I changed the join setting to use the join path with the least number of topics. This skipped the extraneous steps and allowed me to proceed as normal.
hope this helps anyone else who may bump into this issue.

Logical Vs Physical Data Model

Hi guys
What is the difference between logical data model and physical data model.

I assume you are talking about ERwin.
In short,
Logical data model is non-database specific model you can apply it to any database by convert it to target physical data model.
Physical data model is database specific, for example, column data type, physical storage parameter, SQL syntax etc.

Reverse engineering data model

Can rational rose reverse enginner data model from database (i.e. read the schema in db and then generate the ER diagram)?

Yes you can reverse engineer datamodel from database. Following steps will help you in doing it. I did it using Rational Rose 2001(a) Enterprise suite edition.
1. Go to Tools->DataModeler->Reverse Engineer option
2. Reverse engineering wizard dialog box will be shown.
3. Select Reverse engineer from Database
4. Select your target database. Enter username/password and service name
for your database.
5. Test connection option is also provided. You can test the connection using this option.
6. Available schemas in the selected database will be displayed.
7. Select the schema of your choice and it will generate the datamodel.
Hope it helped you.

How to get data model to recognize structure change

I have an extremely complex report that was built almost entirely manually -- except for using the Data Wizard to create the Data Model (multiple queries with multiple groups). The source view that the query Q-1 is based on has changed. It is a change in the precision of the column. How do I get the data model to notice that change? The Width in the Property Palette is still showing 8 when it should now be 16. This is causing the display on the report to be truncated to 8 characters.
I don't want to have to rebuild the data model. It took me 3 days to get it so that it works!
Thanks

PLS OPEN THE QUERY AND THEN CONNECT USING YOUR USER. I THINK WHEN YOU REFRESH THE QUERY AND CONNECT THEN WIDTH IS CHANGE AS THE COLUMN IN THE DATABASE.(i.e. 16)
THANKS,
FAROOQ Thanks for the suggestion. Unfortunately, the same thing happens when I do this as happens if I modify the query with a space (as before); the rows are removed from their groups, and I lose the Source of my calculated fields.
If anyone is interested, I finally found a way to do this:
1. Convert the report into a text file (File>Administration>Convert);
2. open the text file in a text editor;
change the offensive WIDTH settings (make sure to look for all of them);
3. save the text file;
4. then convert it back to a RDF file using the converter.
A round-about way to perform what should be an automatic operation -- but there it is.
--V

Using CVS in SQL Developer for Data Modeler changes.

Hi,
I am fairly new to SQL Developer Data Modeler and associated version control mechanisms.
I am prototyping the storage of database designs and version control for the same, using the Data Modeler within SQL Developer. I have SQL Developer version 3.1.07.42 and I have also installed the CVS extension.
I can connect to our CVS server through sspi protocol and external CVS executable and am able to check out modules.
Below is the scenario where I am facing some issue:
I open the design from the checked out module and make changes and save it. In the File navigator, I look for the files that have been modified or added newly.
This behaves rather inconsistently in the sense that even after clicking on refresh button, sometimes it does not get refreshed. Next I try to look for the changes in Pending Changes(CVS) window. According to the other posts, I am supposed to look at the View - Data Modeler - Pending Changes window for data modeler changes but that shows up empty always( I am not sure if it is only tied to Subversion). But I do see the modified files/ files to be added to CVS under Versioning - CVS - Pending Changes window. The issue is that when I click on the refresh button in the window, all the files just vanish and all the counts show 0. Strangely if I go to Tools - Preferences - Versioning - CVS and just click OK, the pending changes window gets populated again( the counts are inconsistent at times).
I believe this issue is fixed and should work correctly in 3.1.07.42 but it does not seem to be case.
Also, I m not sure if I can use this CVS functionality available in SQL Dev for data modeler or should I be using an external client such as Wincvs for check in/ check out.
Please help.
Thanks

Hi Joop,
I think you will find that in Data Modeler's Physical Model tree the same icons are used for temporary Tables and Materialized Views as in SQL Developer.
David

Core data: Versioned model migration with change in existing attribute data types.

Hi ,
I want to upgrade my ios app with app store version with enhancement of new functionality related to core data features in the app.
-In new upgarde version, I want to change data types of attribute which is already present in core data model of existing app store version.
e.g.In Version 1.0 ,Attribute "date" datatype is "NSDate", New change required to change datatype "NSDate" to "NSString" with new version model.
I followed Lightwaight migration, but as per documentation , Lightwaigh migration not support for change data type of any existing attribute/entity of core data model.
Please suggest optimized solution for migration of database along with change in data type of exsiting attribute of the entity in core data.
If required in further info ,please ask.
Thanks in advances.
Regards,
Laxmikant

More Info: The two entries are actually pointing to the same object. If I save the context and restart, I only have one entry (I can also see this by looking at the XML store).
It seems that the NSTableView is getting messed up somehow after the FetchRequest. Still stumped.

Easily Data model change.

Sometimes we need to change project data model after creating Bussiness Comp diagram.
fro example Add new column to the table, change relation etc.
So we need to change entity, view and application module objects
Is there any easy way to make this.
such as refresh model from database.
we are using 10.1.3.1.
thanks...

Right clicking on an entity object and choosing synchronize with database will look up the DB structure for any changes related to the entity and will allow you to add/delete attributes as needed.

How to get the data from mysql database which is being accessed by a PHP application and process the data locally in adobe air application and finally commit the changes back in to mysql database through the PHP application.

How to get the data from mysql database which is being accessed by a PHP application and process the data locally in adobe air application and finally commit the changes back in to mysql database through the PHP application.

If the data is on a remote server (for example, PHP running on a web server, talking to a MySQL server) then you do this in an AIR application the same way you would do it with any Flex application (or ajax application, if you're building your AIR app in HTML/JS).
That's a broad answer, but in fact there are lots of ways to communicate between Flex and PHP. The most common and best in most cases is to use AMFPHP (http://amfphp.org/) or the new ZEND AMF support in the Zend Framework.
This page is a good starting point for learning about Flex and PHP communication:
http://www.adobe.com/devnet/flex/flex_php.html
Also, in Flash Builder 4 they've added a lot of remote-data-connection functionality, including a lot that's designed for PHP. Take a look at the Flash Builder 4 public beta for more on that: http://labs.adobe.com/technologies/flashbuilder4/

Import / Export MySQL database in SQL Developer Data Modeler

Hello,
I have version 3.1.2.704 of SQL Developer Data Modeler and version 3.2.09 of SQL Developer installed.
When I´m adding a new connection in SQL Developer, I can choose the MySQL tab an create a connection to a MySQL database.
The connection test was successful and I can see all tables.
I use the same JDBC driver for SQL Developer and SQL Developer Data Modeler (mysql-connector-java-5.0.4-bin.jar).
But there are two problems.
1. First there is an problem when I want to import from a MySQL database (SQL Developer -> File -> DataModeler -> Import -> DataDictionary).
After choosing the MySQL connection and pressing the next button an error occurs: CONNECTION_TYPE
What is the reason?
2. In SQL Developer Data Modeler I have not the CONNECTION_TYPE problem. But when I want to export DDL, there is no MySQL type selectable, although there is working connection to the MySQL Database. It´s the same in SQL Developer.
What is the reason?

Hi,
Data Modeler does not explicitly support import from MySQL databases, although you can use a JDBC connection to do this.
Philip described how to set this up in forum message How to connect mySQL for reverve engineering
There is no MySQL tab in Data Modeler - you should use "JDBC-ODBC Bridge" - "other third party Driver".
Set URL like : jdbc:mysql://localhost:3306/database_name
driver Class: com.mysql.jdbc.DriverAlso Data Modeler does not support generation of DDL for MySQL.
David

Data Modeler Incremental Database Changes

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