Without the ability to reverse engineer existing code into the VS UML Model repository or import models from other tools, I don't see how adoption of VS UML modelling will get very far. A lot of my work - and I would venture to guess that this is the case for most developers - is adding features to existing software and not doing green-field work. If my suspicions are correct, this is a big disappointment. But other diagrams (and resulting generation of VS UML Model Repository Objects) is elusive. I was able to generate UML Activity diagrams from code. This makes me suspect that the VS team didn't tackle reverse engineering code into models. No luck.īinging does show up anything other than some MS marketing blurbs about "top-down modelling" and, as expected, forward engineering code from the UML model. I've tried generating an old style class diagram (*.cd) and dragging the resulting diagram object to a blank UML Class diagram. I've tried dragging classes from the "Architecture Explorer" to the "UML Model Explorer" but that doesn't work (won't let me drop on the UML Model). I have a bad feeling that this is not supported in VS 2010 (I'm using the RC from Feb 2010). Select Generate ERD check box to allow Visual Paradigm to generate the ERD for you automatically.Īfter that, the ERD of your database will be generated and you can analyze it or simply work on it.Reverse engineering source code into a VS 2010 UML class model?.Specify the database of the DDL file which was created from the Database combo box.Specify the path of the DDL file we exported in previous step in the File path field.Once we got the DDL file ready, we can then reverse it into ERD. This will extract the schema of your specified database into a script file in the path you specified. Pg_dump -h %hostname% -u %user_name% -port %port% -schema-only %database_name% > %path_to_script_file% PostgreSQLįor PostgreSQL, the database schema can be exported by using the pg_dump command with the following arguments. This will extract the schema of your specified database into the dump file path specified under the dumpfile argument. Oracleįor Oracle, the database schema can be exported by using the expdb command with the following arguments.Įxpdb schema=%schema% dumpfile=%path_to_script_file% content=metadata_only Mysqldump -u %user% -p -no-data %db_name% > %path_to_script_file% Review the selection and press Next to start generating DDL script.įor MySQL, the database schema can be exported by using the mysqldump command with the following arguments.Select ANSI text in the Save as field, then press Next to proceed.Specify the path for outputting the script file in the File name field.Choose Select specific database objects, then choose all Tables in the list and press Next to proceed.Click Next in Generate and Publish Scripts dialog.Right-click on the database which you want to be reversed to and select Tasks > Generate Scripts.Open the SQL Server Management Studio and connect to your database.To generate DDL file for your SQL Server database: Microsoft SQL Server will be used as an example throughout the tutorial. A video demo is also provided at the end of this tutorial. In this tutorial you will first learn how to reverse the DDL file, and then learn how to visualize your database in ERD by reversing engineering the DDL file. support to export the schema of database into a Data Definition Language (DDL) file. So what is the alternative to achieve this, when we encounter this kind of situation? Generating DDL file from DatabaseĪctually, most of the Database Management System (DBMS) such as Oracle, Microsoft SQL Server, MySQL, etc. the production database is not accessible for such purpose). However, what if your database is not accessible to perform the reverse engineering? (i.e. For existing database, ERD can be generated from database schema through reverse engineering.
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