- 3,716,134 Users
- 2,242,961 Discussions
- 7,845,841 Comments
Forum Stats
Discussions
Categories
- 17 Data
- 362.2K Big Data Appliance
- 7 Data Science
- 1.6K Databases
- 479 General Database Discussions
- 3.7K Java and JavaScript in the Database
- 22 Multilingual Engine
- 487 MySQL Community Space
- 5 NoSQL Database
- 7.6K Oracle Database Express Edition (XE)
- 2.8K ORDS, SODA & JSON in the Database
- 417 SQLcl
- 42 SQL Developer Data Modeler
- 184.9K SQL & PL/SQL
- 21K SQL Developer
- 1.9K Development
- 3 Developer Projects
- 32 Programming Languages
- 135.1K Development Tools
- 9 DevOps
- 3K QA/Testing
- 259 Java
- 6 Java Learning Subscription
- 11 Database Connectivity
- 67 Java Community Process
- 1 Java 25
- 9 Java APIs
- 141.1K Java Development Tools
- 6 Java EE (Java Enterprise Edition)
- 153K Java Essentials
- 135 Java 8 Questions
- 86.2K Java Programming
- 270 Java Lambda MOOC
- 65.1K New To Java
- 1.7K Training / Learning / Certification
- 13.8K Java HotSpot Virtual Machine
- 10 Java SE
- 13.8K Java Security
- 3 Java User Groups
- 22 JavaScript - Nashorn
- 18 Programs
- 125 LiveLabs
- 31 Workshops
- 9 Software
- 3 Berkeley DB Family
- 3.5K JHeadstart
- 5.7K Other Languages
- 2.3K Chinese
- 4 Deutsche Oracle Community
- 11 Español
- 1.9K Japanese
- 2 Portuguese
Reverse engineering in .Net Core 2

Hello,
I am trying to do a reverse engineering from a Oracle Database, using the "Entity Framework Core Tool --> Scaffold-DbContext".
I installed the nuget package "Oracle.ManagedDataAccess.Core", and run this in the Package Manager Console:
Scaffold-DbContext "Data Source=TORCL;User Id=hr;Password=hr;" Oracle.ManagedDataAccess -OutputDir DB_Oracle
but I got this error message:
Unable to find expected assembly attribute named DesignTimeProviderServicesAttribute in provider assembly Oracle.ManagedDataAccess. This attribute is required to identify the class which acts as the design-time service provider factory.
Finally, I realized (in part reading other discussions here) that the "Oracle.ManagedDataAccess.Core" driver is only for ADO.NET, so I need a specific Entify Framework driver to do the mentioned reverse engineering with "Scaffold-DbContext", and that there are only a Beta version.
Is it correct?
Thank you in advance¡
Best Answer
-
You need to use Oracle EF Core assembly to support scaffolding. This sample has instructions for how to conduct reverse engineering.
https://github.com/oracle/dotnet-db-samples/tree/master/samples/dotnet-core/ef-core
Answers
-
You need to use Oracle EF Core assembly to support scaffolding. This sample has instructions for how to conduct reverse engineering.
https://github.com/oracle/dotnet-db-samples/tree/master/samples/dotnet-core/ef-core
-
Thank you very much¡